./chc-comp-wrapper.sh ../../../chc-comp24-benchmarks/LIA-Arrays/chc-comp24-LIA-Arrays-153.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-04-28 21:21:29,583 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-04-28 21:21:29,698 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e60688e-d781-4365-9789-5765f5bc54f9/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-04-28 21:21:29,705 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-04-28 21:21:29,705 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-04-28 21:21:29,744 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-04-28 21:21:29,746 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-04-28 21:21:29,746 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-04-28 21:21:29,748 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-04-28 21:21:29,748 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-04-28 21:21:29,749 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-04-28 21:21:29,749 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-04-28 21:21:29,750 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-04-28 21:21:29,750 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-04-28 21:21:29,750 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-04-28 21:21:29,750 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-04-28 21:21:29,750 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-04-28 21:21:29,752 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-04-28 21:21:29,752 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:29,752 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-04-28 21:21:29,752 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-04-28 21:21:29,752 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-04-28 21:21:29,753 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-04-28 21:21:29,753 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-04-28 21:21:29,753 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-04-28 21:21:29,754 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-04-28 21:21:29,754 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-04-28 21:21:30,101 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-04-28 21:21:30,113 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-04-28 21:21:30,116 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-04-28 21:21:30,119 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-04-28 21:21:30,120 INFO  L274        PluginConnector]: SmtParser initialized
[2025-04-28 21:21:30,121 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e60688e-d781-4365-9789-5765f5bc54f9/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Arrays/chc-comp24-LIA-Arrays-153.smt2
[2025-04-28 21:21:30,124 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-04-28 21:21:30,128 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-04-28 21:21:30,601 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e60688e-d781-4365-9789-5765f5bc54f9/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Arrays/chc-comp24-LIA-Arrays-153.smt2
[2025-04-28 21:21:30,605 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-04-28 21:21:30,606 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-04-28 21:21:30,607 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-04-28 21:21:30,607 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-04-28 21:21:30,608 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-04-28 21:21:30,610 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:30" (1/1) ...
[2025-04-28 21:21:30,677 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:30 Unit
[2025-04-28 21:21:30,681 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-04-28 21:21:30,682 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-04-28 21:21:30,682 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-04-28 21:21:30,682 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-04-28 21:21:30,700 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:30" (1/1) ...
[2025-04-28 21:21:30,701 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:30" (1/1) ...
[2025-04-28 21:21:30,753 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:30" (1/1) ...
[2025-04-28 21:21:30,757 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:30" (1/1) ...
[2025-04-28 21:21:30,771 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:30" (1/1) ...
[2025-04-28 21:21:30,772 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:30" (1/1) ...
[2025-04-28 21:21:30,774 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:30" (1/1) ...
[2025-04-28 21:21:30,777 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:30" (1/1) ...
[2025-04-28 21:21:30,779 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:30" (1/1) ...
[2025-04-28 21:21:30,797 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-04-28 21:21:30,798 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-04-28 21:21:30,799 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-04-28 21:21:30,799 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-04-28 21:21:30,800 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:30" (1/1) ...
[2025-04-28 21:21:30,805 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:30,824 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-04-28 21:21:30,838 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2025-04-28 21:21:30,842 INFO  L327       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2025-04-28 21:21:30,854 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-04-28 21:21:30,855 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-04-28 21:21:30,855 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-04-28 21:21:30,855 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure error_target_7_0 given in one single declaration
[2025-04-28 21:21:30,855 INFO  L130     BoogieDeclarations]: Found specification of procedure error_target_7_0
[2025-04-28 21:21:30,855 INFO  L138     BoogieDeclarations]: Found implementation of procedure error_target_7_0
[2025-04-28 21:21:30,855 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure interface_0_C_44_0 given in one single declaration
[2025-04-28 21:21:30,855 INFO  L130     BoogieDeclarations]: Found specification of procedure interface_0_C_44_0
[2025-04-28 21:21:30,855 INFO  L138     BoogieDeclarations]: Found implementation of procedure interface_0_C_44_0
[2025-04-28 21:21:30,856 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_constructor_2_C_44_0 given in one single declaration
[2025-04-28 21:21:30,856 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_constructor_2_C_44_0
[2025-04-28 21:21:30,856 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_constructor_2_C_44_0
[2025-04-28 21:21:30,856 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure implicit_constructor_entry_19_C_44_0 given in one single declaration
[2025-04-28 21:21:30,856 INFO  L130     BoogieDeclarations]: Found specification of procedure implicit_constructor_entry_19_C_44_0
[2025-04-28 21:21:30,856 INFO  L138     BoogieDeclarations]: Found implementation of procedure implicit_constructor_entry_19_C_44_0
[2025-04-28 21:21:30,856 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_16_C_44_0 given in one single declaration
[2025-04-28 21:21:30,856 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_16_C_44_0
[2025-04-28 21:21:30,856 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_16_C_44_0
[2025-04-28 21:21:30,856 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_after_init_18_C_44_0 given in one single declaration
[2025-04-28 21:21:30,856 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_after_init_18_C_44_0
[2025-04-28 21:21:30,856 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_after_init_18_C_44_0
[2025-04-28 21:21:30,856 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure contract_initializer_entry_17_C_44_0 given in one single declaration
[2025-04-28 21:21:30,856 INFO  L130     BoogieDeclarations]: Found specification of procedure contract_initializer_entry_17_C_44_0
[2025-04-28 21:21:30,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure contract_initializer_entry_17_C_44_0
[2025-04-28 21:21:30,857 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_4_function_f__43_44_0 given in one single declaration
[2025-04-28 21:21:30,857 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_4_function_f__43_44_0
[2025-04-28 21:21:30,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_4_function_f__43_44_0
[2025-04-28 21:21:30,857 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_15_function_f__43_44_0 given in one single declaration
[2025-04-28 21:21:30,857 INFO  L130     BoogieDeclarations]: Found specification of procedure block_15_function_f__43_44_0
[2025-04-28 21:21:30,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_15_function_f__43_44_0
[2025-04-28 21:21:30,857 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure summary_3_function_f__43_44_0 given in one single declaration
[2025-04-28 21:21:30,857 INFO  L130     BoogieDeclarations]: Found specification of procedure summary_3_function_f__43_44_0
[2025-04-28 21:21:30,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure summary_3_function_f__43_44_0
[2025-04-28 21:21:30,857 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_7_return_function_f__43_44_0 given in one single declaration
[2025-04-28 21:21:30,857 INFO  L130     BoogieDeclarations]: Found specification of procedure block_7_return_function_f__43_44_0
[2025-04-28 21:21:30,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_7_return_function_f__43_44_0
[2025-04-28 21:21:30,857 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_11_f_42_44_0 given in one single declaration
[2025-04-28 21:21:30,857 INFO  L130     BoogieDeclarations]: Found specification of procedure block_11_f_42_44_0
[2025-04-28 21:21:30,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_11_f_42_44_0
[2025-04-28 21:21:30,858 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_10_if_true_f_32_44_0 given in one single declaration
[2025-04-28 21:21:30,858 INFO  L130     BoogieDeclarations]: Found specification of procedure block_10_if_true_f_32_44_0
[2025-04-28 21:21:30,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_10_if_true_f_32_44_0
[2025-04-28 21:21:30,858 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_9_if_header_f_33_44_0 given in one single declaration
[2025-04-28 21:21:30,858 INFO  L130     BoogieDeclarations]: Found specification of procedure block_9_if_header_f_33_44_0
[2025-04-28 21:21:30,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_9_if_header_f_33_44_0
[2025-04-28 21:21:30,858 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_6_f_42_44_0 given in one single declaration
[2025-04-28 21:21:30,858 INFO  L130     BoogieDeclarations]: Found specification of procedure block_6_f_42_44_0
[2025-04-28 21:21:30,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_6_f_42_44_0
[2025-04-28 21:21:30,858 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_5_function_f__43_44_0 given in one single declaration
[2025-04-28 21:21:30,858 INFO  L130     BoogieDeclarations]: Found specification of procedure block_5_function_f__43_44_0
[2025-04-28 21:21:30,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_5_function_f__43_44_0
[2025-04-28 21:21:30,858 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_13_function_f__43_44_0 given in one single declaration
[2025-04-28 21:21:30,858 INFO  L130     BoogieDeclarations]: Found specification of procedure block_13_function_f__43_44_0
[2025-04-28 21:21:30,859 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_13_function_f__43_44_0
[2025-04-28 21:21:30,859 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_12_function_f__43_44_0 given in one single declaration
[2025-04-28 21:21:30,859 INFO  L130     BoogieDeclarations]: Found specification of procedure block_12_function_f__43_44_0
[2025-04-28 21:21:30,859 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_12_function_f__43_44_0
[2025-04-28 21:21:30,859 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_8_function_f__43_44_0 given in one single declaration
[2025-04-28 21:21:30,859 INFO  L130     BoogieDeclarations]: Found specification of procedure block_8_function_f__43_44_0
[2025-04-28 21:21:30,859 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_8_function_f__43_44_0
[2025-04-28 21:21:30,859 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure block_14_function_f__43_44_0 given in one single declaration
[2025-04-28 21:21:30,859 INFO  L130     BoogieDeclarations]: Found specification of procedure block_14_function_f__43_44_0
[2025-04-28 21:21:30,859 INFO  L138     BoogieDeclarations]: Found implementation of procedure block_14_function_f__43_44_0
[2025-04-28 21:21:30,861 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-04-28 21:21:30,861 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-04-28 21:21:30,861 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-04-28 21:21:31,088 INFO  L234             CfgBuilder]: Building ICFG
[2025-04-28 21:21:31,090 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-04-28 21:21:31,512 INFO  L?                        ?]: Removed 172 outVars from TransFormulas that were not future-live.
[2025-04-28 21:21:31,513 INFO  L283             CfgBuilder]: Performing block encoding
[2025-04-28 21:21:31,531 INFO  L304             CfgBuilder]: Using library mode
[2025-04-28 21:21:31,534 INFO  L312             CfgBuilder]: Removed 10 assume(true) statements.
[2025-04-28 21:21:31,535 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:31 BoogieIcfgContainer
[2025-04-28 21:21:31,535 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-04-28 21:21:31,539 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-04-28 21:21:31,543 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-04-28 21:21:31,547 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-04-28 21:21:31,549 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:30" (1/3) ...
[2025-04-28 21:21:31,550 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53011578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 28.04 09:21:31, skipping insertion in model container
[2025-04-28 21:21:31,550 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:30" (2/3) ...
[2025-04-28 21:21:31,550 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53011578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:21:31, skipping insertion in model container
[2025-04-28 21:21:31,551 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:31" (3/3) ...
[2025-04-28 21:21:31,552 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-04-28 21:21:31,569 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-04-28 21:21:31,574 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 22 procedures, 87 locations, 132 edges, 22 initial locations, 0 loop locations, and 1 error locations.
[2025-04-28 21:21:31,636 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-04-28 21:21:31,656 INFO  L340      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@cb047b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-04-28 21:21:31,656 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-04-28 21:21:31,663 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 87 states, 38 states have (on average 1.105263157894737) internal successors, (42), 42 states have internal predecessors, (42), 26 states have call successors, (30), 21 states have call predecessors, (30), 21 states have return successors, (30), 23 states have call predecessors, (30), 26 states have call successors, (30)
[2025-04-28 21:21:31,675 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2025-04-28 21:21:31,677 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:31,678 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:31,679 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:31,685 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:31,685 INFO  L85        PathProgramCache]: Analyzing trace with hash -51927465, now seen corresponding path program 1 times
[2025-04-28 21:21:31,691 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:31,691 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729386990]
[2025-04-28 21:21:31,692 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:31,692 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:31,765 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes.
[2025-04-28 21:21:31,824 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements.
[2025-04-28 21:21:31,827 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:31,829 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:31,994 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-28 21:21:31,996 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:31,996 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729386990]
[2025-04-28 21:21:31,997 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729386990] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:31,997 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:32,002 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2025-04-28 21:21:32,003 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406473871]
[2025-04-28 21:21:32,004 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:32,008 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-04-28 21:21:32,008 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:32,036 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-04-28 21:21:32,036 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-04-28 21:21:32,038 INFO  L87              Difference]: Start difference. First operand  has 87 states, 38 states have (on average 1.105263157894737) internal successors, (42), 42 states have internal predecessors, (42), 26 states have call successors, (30), 21 states have call predecessors, (30), 21 states have return successors, (30), 23 states have call predecessors, (30), 26 states have call successors, (30) Second operand  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2025-04-28 21:21:32,062 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:32,063 INFO  L93              Difference]: Finished difference Result 82 states and 95 transitions.
[2025-04-28 21:21:32,063 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-04-28 21:21:32,065 INFO  L79                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 51
[2025-04-28 21:21:32,065 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:32,073 INFO  L225             Difference]: With dead ends: 82
[2025-04-28 21:21:32,073 INFO  L226             Difference]: Without dead ends: 81
[2025-04-28 21:21:32,075 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-04-28 21:21:32,078 INFO  L437           NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:32,079 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-04-28 21:21:32,129 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81 states.
[2025-04-28 21:21:32,160 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81.
[2025-04-28 21:21:32,163 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 38 states have internal predecessors, (38), 25 states have call successors, (28), 20 states have call predecessors, (28), 20 states have return successors, (28), 22 states have call predecessors, (28), 25 states have call successors, (28)
[2025-04-28 21:21:32,176 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions.
[2025-04-28 21:21:32,181 INFO  L79                 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 51
[2025-04-28 21:21:32,186 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:32,186 INFO  L485      AbstractCegarLoop]: Abstraction has 81 states and 94 transitions.
[2025-04-28 21:21:32,186 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14)
[2025-04-28 21:21:32,186 INFO  L278                IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions.
[2025-04-28 21:21:32,191 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2025-04-28 21:21:32,195 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:32,195 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:32,196 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-04-28 21:21:32,196 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:32,196 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:32,197 INFO  L85        PathProgramCache]: Analyzing trace with hash 943516707, now seen corresponding path program 1 times
[2025-04-28 21:21:32,197 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:32,197 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217750648]
[2025-04-28 21:21:32,197 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:32,197 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:32,298 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes.
[2025-04-28 21:21:32,412 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements.
[2025-04-28 21:21:32,416 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:32,416 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:33,567 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-28 21:21:33,567 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:33,567 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217750648]
[2025-04-28 21:21:33,567 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217750648] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:33,568 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:33,568 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-04-28 21:21:33,568 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364172307]
[2025-04-28 21:21:33,568 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:33,571 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-04-28 21:21:33,572 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:33,573 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-04-28 21:21:33,573 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-04-28 21:21:33,574 INFO  L87              Difference]: Start difference. First operand 81 states and 94 transitions. Second operand  has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (16), 1 states have call predecessors, (16), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16)
[2025-04-28 21:21:33,686 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:33,686 INFO  L93              Difference]: Finished difference Result 79 states and 91 transitions.
[2025-04-28 21:21:33,688 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-04-28 21:21:33,689 INFO  L79                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (16), 1 states have call predecessors, (16), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 59
[2025-04-28 21:21:33,689 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:33,690 INFO  L225             Difference]: With dead ends: 79
[2025-04-28 21:21:33,692 INFO  L226             Difference]: Without dead ends: 77
[2025-04-28 21:21:33,692 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-04-28 21:21:33,693 INFO  L437           NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:33,694 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 342 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-04-28 21:21:33,695 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 77 states.
[2025-04-28 21:21:33,708 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77.
[2025-04-28 21:21:33,709 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 77 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 36 states have internal predecessors, (36), 24 states have call successors, (26), 19 states have call predecessors, (26), 19 states have return successors, (26), 21 states have call predecessors, (26), 24 states have call successors, (26)
[2025-04-28 21:21:33,711 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 88 transitions.
[2025-04-28 21:21:33,714 INFO  L79                 Accepts]: Start accepts. Automaton has 77 states and 88 transitions. Word has length 59
[2025-04-28 21:21:33,714 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:33,714 INFO  L485      AbstractCegarLoop]: Abstraction has 77 states and 88 transitions.
[2025-04-28 21:21:33,715 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (16), 1 states have call predecessors, (16), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16)
[2025-04-28 21:21:33,715 INFO  L278                IsEmpty]: Start isEmpty. Operand 77 states and 88 transitions.
[2025-04-28 21:21:33,716 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2025-04-28 21:21:33,717 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:33,719 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:33,719 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-04-28 21:21:33,720 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:33,720 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:33,720 INFO  L85        PathProgramCache]: Analyzing trace with hash -2113464712, now seen corresponding path program 1 times
[2025-04-28 21:21:33,720 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:33,720 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026133709]
[2025-04-28 21:21:33,720 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:33,721 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:33,781 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes.
[2025-04-28 21:21:33,836 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements.
[2025-04-28 21:21:33,836 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:33,836 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:34,070 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-28 21:21:34,070 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:34,070 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026133709]
[2025-04-28 21:21:34,071 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026133709] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:34,071 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:34,072 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-04-28 21:21:34,072 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660754990]
[2025-04-28 21:21:34,072 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:34,072 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-04-28 21:21:34,073 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:34,074 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-04-28 21:21:34,075 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-04-28 21:21:34,075 INFO  L87              Difference]: Start difference. First operand 77 states and 88 transitions. Second operand  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 5 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16)
[2025-04-28 21:21:34,175 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:34,177 INFO  L93              Difference]: Finished difference Result 82 states and 94 transitions.
[2025-04-28 21:21:34,177 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-04-28 21:21:34,178 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 5 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 59
[2025-04-28 21:21:34,178 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:34,179 INFO  L225             Difference]: With dead ends: 82
[2025-04-28 21:21:34,181 INFO  L226             Difference]: Without dead ends: 82
[2025-04-28 21:21:34,181 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-04-28 21:21:34,182 INFO  L437           NwaCegarLoop]: 90 mSDtfsCounter, 1 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:34,183 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 436 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-04-28 21:21:34,184 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2025-04-28 21:21:34,199 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82.
[2025-04-28 21:21:34,200 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 38 states have internal predecessors, (38), 25 states have call successors, (27), 19 states have call predecessors, (27), 21 states have return successors, (29), 24 states have call predecessors, (29), 25 states have call successors, (29)
[2025-04-28 21:21:34,201 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 94 transitions.
[2025-04-28 21:21:34,203 INFO  L79                 Accepts]: Start accepts. Automaton has 82 states and 94 transitions. Word has length 59
[2025-04-28 21:21:34,203 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:34,203 INFO  L485      AbstractCegarLoop]: Abstraction has 82 states and 94 transitions.
[2025-04-28 21:21:34,204 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 5 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16)
[2025-04-28 21:21:34,204 INFO  L278                IsEmpty]: Start isEmpty. Operand 82 states and 94 transitions.
[2025-04-28 21:21:34,205 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2025-04-28 21:21:34,208 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:34,208 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:34,208 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-04-28 21:21:34,208 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:34,209 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:34,209 INFO  L85        PathProgramCache]: Analyzing trace with hash 248250968, now seen corresponding path program 1 times
[2025-04-28 21:21:34,209 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:34,209 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135978755]
[2025-04-28 21:21:34,209 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:34,209 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:34,260 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes.
[2025-04-28 21:21:34,289 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements.
[2025-04-28 21:21:34,290 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:34,291 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:34,493 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-28 21:21:34,495 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:34,495 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135978755]
[2025-04-28 21:21:34,495 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135978755] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:34,495 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:34,495 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-04-28 21:21:34,495 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986606151]
[2025-04-28 21:21:34,495 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:34,496 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-04-28 21:21:34,496 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:34,497 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-04-28 21:21:34,497 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-04-28 21:21:34,498 INFO  L87              Difference]: Start difference. First operand 82 states and 94 transitions. Second operand  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 5 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16)
[2025-04-28 21:21:34,565 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:34,565 INFO  L93              Difference]: Finished difference Result 87 states and 100 transitions.
[2025-04-28 21:21:34,566 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-04-28 21:21:34,566 INFO  L79                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 5 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 59
[2025-04-28 21:21:34,567 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:34,569 INFO  L225             Difference]: With dead ends: 87
[2025-04-28 21:21:34,571 INFO  L226             Difference]: Without dead ends: 87
[2025-04-28 21:21:34,572 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2025-04-28 21:21:34,572 INFO  L437           NwaCegarLoop]: 86 mSDtfsCounter, 1 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:34,573 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 420 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-04-28 21:21:34,574 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 87 states.
[2025-04-28 21:21:34,582 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 82.
[2025-04-28 21:21:34,584 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 38 states have internal predecessors, (38), 25 states have call successors, (27), 19 states have call predecessors, (27), 21 states have return successors, (29), 24 states have call predecessors, (29), 25 states have call successors, (29)
[2025-04-28 21:21:34,585 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 94 transitions.
[2025-04-28 21:21:34,589 INFO  L79                 Accepts]: Start accepts. Automaton has 82 states and 94 transitions. Word has length 59
[2025-04-28 21:21:34,589 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:34,589 INFO  L485      AbstractCegarLoop]: Abstraction has 82 states and 94 transitions.
[2025-04-28 21:21:34,589 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 5 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16)
[2025-04-28 21:21:34,590 INFO  L278                IsEmpty]: Start isEmpty. Operand 82 states and 94 transitions.
[2025-04-28 21:21:34,591 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2025-04-28 21:21:34,591 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:34,591 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:34,591 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-04-28 21:21:34,592 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:34,592 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:34,592 INFO  L85        PathProgramCache]: Analyzing trace with hash 48091910, now seen corresponding path program 1 times
[2025-04-28 21:21:34,592 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:34,592 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9480143]
[2025-04-28 21:21:34,592 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:34,593 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:34,634 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes.
[2025-04-28 21:21:34,655 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements.
[2025-04-28 21:21:34,655 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:34,655 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:35,093 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-28 21:21:35,094 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:35,094 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9480143]
[2025-04-28 21:21:35,095 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9480143] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:35,095 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:35,095 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2025-04-28 21:21:35,095 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106376385]
[2025-04-28 21:21:35,095 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:35,095 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2025-04-28 21:21:35,096 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:35,096 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2025-04-28 21:21:35,098 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2025-04-28 21:21:35,098 INFO  L87              Difference]: Start difference. First operand 82 states and 94 transitions. Second operand  has 11 states, 8 states have (on average 3.375) internal successors, (27), 11 states have internal predecessors, (27), 7 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (16), 8 states have call predecessors, (16), 7 states have call successors, (16)
[2025-04-28 21:21:35,352 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:35,352 INFO  L93              Difference]: Finished difference Result 91 states and 106 transitions.
[2025-04-28 21:21:35,353 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2025-04-28 21:21:35,353 INFO  L79                 Accepts]: Start accepts. Automaton has  has 11 states, 8 states have (on average 3.375) internal successors, (27), 11 states have internal predecessors, (27), 7 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (16), 8 states have call predecessors, (16), 7 states have call successors, (16) Word has length 59
[2025-04-28 21:21:35,353 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:35,354 INFO  L225             Difference]: With dead ends: 91
[2025-04-28 21:21:35,354 INFO  L226             Difference]: Without dead ends: 91
[2025-04-28 21:21:35,355 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132
[2025-04-28 21:21:35,357 INFO  L437           NwaCegarLoop]: 82 mSDtfsCounter, 3 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:35,357 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 712 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-04-28 21:21:35,358 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 91 states.
[2025-04-28 21:21:35,371 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 86.
[2025-04-28 21:21:35,372 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 86 states, 37 states have (on average 1.0810810810810811) internal successors, (40), 40 states have internal predecessors, (40), 25 states have call successors, (27), 19 states have call predecessors, (27), 23 states have return successors, (33), 26 states have call predecessors, (33), 25 states have call successors, (33)
[2025-04-28 21:21:35,373 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 100 transitions.
[2025-04-28 21:21:35,374 INFO  L79                 Accepts]: Start accepts. Automaton has 86 states and 100 transitions. Word has length 59
[2025-04-28 21:21:35,374 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:35,375 INFO  L485      AbstractCegarLoop]: Abstraction has 86 states and 100 transitions.
[2025-04-28 21:21:35,376 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 8 states have (on average 3.375) internal successors, (27), 11 states have internal predecessors, (27), 7 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (16), 8 states have call predecessors, (16), 7 states have call successors, (16)
[2025-04-28 21:21:35,376 INFO  L278                IsEmpty]: Start isEmpty. Operand 86 states and 100 transitions.
[2025-04-28 21:21:35,377 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2025-04-28 21:21:35,378 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:35,378 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:35,379 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-04-28 21:21:35,379 INFO  L403      AbstractCegarLoop]: === Iteration 6 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:35,380 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:35,380 INFO  L85        PathProgramCache]: Analyzing trace with hash 1346507276, now seen corresponding path program 1 times
[2025-04-28 21:21:35,381 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:35,381 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826520159]
[2025-04-28 21:21:35,381 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:35,381 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:35,422 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes.
[2025-04-28 21:21:35,453 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements.
[2025-04-28 21:21:35,454 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:35,454 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:35,992 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-28 21:21:35,994 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:35,994 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826520159]
[2025-04-28 21:21:35,994 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826520159] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:35,994 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:35,995 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2025-04-28 21:21:35,995 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037651325]
[2025-04-28 21:21:35,995 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:35,995 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2025-04-28 21:21:35,996 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:35,996 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2025-04-28 21:21:35,997 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132
[2025-04-28 21:21:35,997 INFO  L87              Difference]: Start difference. First operand 86 states and 100 transitions. Second operand  has 12 states, 8 states have (on average 3.625) internal successors, (29), 12 states have internal predecessors, (29), 7 states have call successors, (17), 1 states have call predecessors, (17), 8 states have return successors, (17), 8 states have call predecessors, (17), 7 states have call successors, (17)
[2025-04-28 21:21:36,268 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:36,268 INFO  L93              Difference]: Finished difference Result 90 states and 104 transitions.
[2025-04-28 21:21:36,268 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2025-04-28 21:21:36,269 INFO  L79                 Accepts]: Start accepts. Automaton has  has 12 states, 8 states have (on average 3.625) internal successors, (29), 12 states have internal predecessors, (29), 7 states have call successors, (17), 1 states have call predecessors, (17), 8 states have return successors, (17), 8 states have call predecessors, (17), 7 states have call successors, (17) Word has length 63
[2025-04-28 21:21:36,270 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:36,271 INFO  L225             Difference]: With dead ends: 90
[2025-04-28 21:21:36,272 INFO  L226             Difference]: Without dead ends: 86
[2025-04-28 21:21:36,273 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210
[2025-04-28 21:21:36,273 INFO  L437           NwaCegarLoop]: 82 mSDtfsCounter, 4 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:36,274 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 863 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-04-28 21:21:36,274 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 86 states.
[2025-04-28 21:21:36,288 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84.
[2025-04-28 21:21:36,288 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 84 states, 37 states have (on average 1.054054054054054) internal successors, (39), 39 states have internal predecessors, (39), 23 states have call successors, (25), 19 states have call predecessors, (25), 23 states have return successors, (31), 25 states have call predecessors, (31), 23 states have call successors, (31)
[2025-04-28 21:21:36,289 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 95 transitions.
[2025-04-28 21:21:36,289 INFO  L79                 Accepts]: Start accepts. Automaton has 84 states and 95 transitions. Word has length 63
[2025-04-28 21:21:36,290 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:36,290 INFO  L485      AbstractCegarLoop]: Abstraction has 84 states and 95 transitions.
[2025-04-28 21:21:36,290 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 8 states have (on average 3.625) internal successors, (29), 12 states have internal predecessors, (29), 7 states have call successors, (17), 1 states have call predecessors, (17), 8 states have return successors, (17), 8 states have call predecessors, (17), 7 states have call successors, (17)
[2025-04-28 21:21:36,290 INFO  L278                IsEmpty]: Start isEmpty. Operand 84 states and 95 transitions.
[2025-04-28 21:21:36,291 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2025-04-28 21:21:36,291 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:36,291 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:36,291 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-04-28 21:21:36,291 INFO  L403      AbstractCegarLoop]: === Iteration 7 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:36,292 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:36,294 INFO  L85        PathProgramCache]: Analyzing trace with hash 617376912, now seen corresponding path program 1 times
[2025-04-28 21:21:36,294 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:36,294 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219426200]
[2025-04-28 21:21:36,294 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:36,294 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:36,336 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes.
[2025-04-28 21:21:36,359 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements.
[2025-04-28 21:21:36,359 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:36,359 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:36,785 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-04-28 21:21:36,786 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:36,786 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219426200]
[2025-04-28 21:21:36,786 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219426200] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:36,786 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:36,786 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2025-04-28 21:21:36,786 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742544624]
[2025-04-28 21:21:36,786 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:36,787 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2025-04-28 21:21:36,787 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:36,788 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2025-04-28 21:21:36,788 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156
[2025-04-28 21:21:36,788 INFO  L87              Difference]: Start difference. First operand 84 states and 95 transitions. Second operand  has 13 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 13 states have internal predecessors, (29), 8 states have call successors, (17), 1 states have call predecessors, (17), 9 states have return successors, (17), 9 states have call predecessors, (17), 8 states have call successors, (17)
[2025-04-28 21:21:37,042 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:37,043 INFO  L93              Difference]: Finished difference Result 59 states and 66 transitions.
[2025-04-28 21:21:37,043 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2025-04-28 21:21:37,043 INFO  L79                 Accepts]: Start accepts. Automaton has  has 13 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 13 states have internal predecessors, (29), 8 states have call successors, (17), 1 states have call predecessors, (17), 9 states have return successors, (17), 9 states have call predecessors, (17), 8 states have call successors, (17) Word has length 63
[2025-04-28 21:21:37,044 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:37,044 INFO  L225             Difference]: With dead ends: 59
[2025-04-28 21:21:37,044 INFO  L226             Difference]: Without dead ends: 0
[2025-04-28 21:21:37,044 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210
[2025-04-28 21:21:37,045 INFO  L437           NwaCegarLoop]: 47 mSDtfsCounter, 2 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:37,045 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 483 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-04-28 21:21:37,046 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-04-28 21:21:37,046 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-04-28 21:21:37,046 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-04-28 21:21:37,047 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-04-28 21:21:37,047 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63
[2025-04-28 21:21:37,047 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:37,047 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-04-28 21:21:37,047 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 13 states have internal predecessors, (29), 8 states have call successors, (17), 1 states have call predecessors, (17), 9 states have return successors, (17), 9 states have call predecessors, (17), 8 states have call successors, (17)
[2025-04-28 21:21:37,047 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-04-28 21:21:37,047 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-04-28 21:21:37,050 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-04-28 21:21:37,051 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-04-28 21:21:37,054 INFO  L422         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1]
[2025-04-28 21:21:37,057 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-04-28 21:21:37,060 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 09:21:37 BoogieIcfgContainer
[2025-04-28 21:21:37,061 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-04-28 21:21:37,061 INFO  L158              Benchmark]: Toolchain (without parser) took 6455.30ms. Allocated memory was 234.9MB in the beginning and 402.7MB in the end (delta: 167.8MB). Free memory was 147.5MB in the beginning and 314.9MB in the end (delta: -167.4MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:37,062 INFO  L158              Benchmark]: SmtParser took 1.76ms. Allocated memory is still 234.9MB. Free memory was 170.2MB in the beginning and 169.6MB in the end (delta: 587.2kB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-04-28 21:21:37,063 INFO  L158              Benchmark]: ChcToBoogie took 74.62ms. Allocated memory is still 234.9MB. Free memory was 147.5MB in the beginning and 144.6MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:37,064 INFO  L158              Benchmark]: Boogie Preprocessor took 115.27ms. Allocated memory is still 234.9MB. Free memory was 144.6MB in the beginning and 141.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:37,064 INFO  L158              Benchmark]: RCFGBuilder took 736.82ms. Allocated memory is still 234.9MB. Free memory was 141.6MB in the beginning and 107.4MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. Max. memory is 33.6GB.
[2025-04-28 21:21:37,065 INFO  L158              Benchmark]: TraceAbstraction took 5521.88ms. Allocated memory was 234.9MB in the beginning and 402.7MB in the end (delta: 167.8MB). Free memory was 106.9MB in the beginning and 314.9MB in the end (delta: -208.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:37,068 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 1.76ms. Allocated memory is still 234.9MB. Free memory was 170.2MB in the beginning and 169.6MB in the end (delta: 587.2kB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * ChcToBoogie took 74.62ms. Allocated memory is still 234.9MB. Free memory was 147.5MB in the beginning and 144.6MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 115.27ms. Allocated memory is still 234.9MB. Free memory was 144.6MB in the beginning and 141.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 33.6GB.
 * RCFGBuilder took 736.82ms. Allocated memory is still 234.9MB. Free memory was 141.6MB in the beginning and 107.4MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. Max. memory is 33.6GB.
 * TraceAbstraction took 5521.88ms. Allocated memory was 234.9MB in the beginning and 402.7MB in the end (delta: 167.8MB). Free memory was 106.9MB in the beginning and 314.9MB in the end (delta: -208.1MB). There was no memory consumed. Max. memory is 33.6GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Unknown line] : the set of constraint Horn clauses is satisfiable
    For all program executions holds that the set of constraint Horn clauses is satisfiable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 22 procedures, 87 locations, 132 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 3351 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2781 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 412 IncrementalHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 570 mSDtfsCounter, 412 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 413 NumberOfCodeBlocks, 413 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 406 ConstructedInterpolants, 0 QuantifiedInterpolants, 574 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2025-04-28 21:21:37,085 INFO  L540       MonitoredProcess]: [MP /usr/bin/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
sat
