./chc-comp-wrapper.sh ../../../chc-comp24-benchmarks/LIA-Lin/chc-comp24-LIA-Lin-295.smt2 .


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This is Ultimate 0.3.0-dev-42d8767-m
[2025-04-28 21:21:48,425 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-04-28 21:21:48,510 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18c2ecb-2c48-4e06-8036-2a3d89c931fa/chc-comp25-scripts/participants/UltimateUnihorn/./chccomp-Unihorn_Default.epf
[2025-04-28 21:21:48,515 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-04-28 21:21:48,515 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-04-28 21:21:48,535 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-04-28 21:21:48,536 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-04-28 21:21:48,536 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-04-28 21:21:48,536 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-04-28 21:21:48,537 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-04-28 21:21:48,537 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-04-28 21:21:48,537 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-04-28 21:21:48,537 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-04-28 21:21:48,537 INFO  L151        SettingsManager]: Preferences of ChcToBoogie differ from their defaults:
[2025-04-28 21:21:48,537 INFO  L153        SettingsManager]:  * Use one large procedure with gotos to replace tail recursive calls=false
[2025-04-28 21:21:48,538 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-04-28 21:21:48,538 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-04-28 21:21:48,538 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-04-28 21:21:48,538 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:48,538 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-04-28 21:21:48,538 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-04-28 21:21:48,538 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-04-28 21:21:48,538 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-04-28 21:21:48,538 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-04-28 21:21:48,539 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-04-28 21:21:48,539 INFO  L151        SettingsManager]: Preferences of SmtParser differ from their defaults:
[2025-04-28 21:21:48,539 INFO  L153        SettingsManager]:  * SmtParser Mode=UltimateTreeAutomizer
[2025-04-28 21:21:48,855 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-04-28 21:21:48,869 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-04-28 21:21:48,872 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-04-28 21:21:48,874 INFO  L270        PluginConnector]: Initializing SmtParser...
[2025-04-28 21:21:48,875 INFO  L274        PluginConnector]: SmtParser initialized
[2025-04-28 21:21:48,876 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18c2ecb-2c48-4e06-8036-2a3d89c931fa/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Lin/chc-comp24-LIA-Lin-295.smt2
[2025-04-28 21:21:48,877 INFO  L314              SmtParser]: Parsing .smt2 file as a set of Horn Clauses
[2025-04-28 21:21:48,883 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
unknown
[2025-04-28 21:21:49,254 INFO  L339              SmtParser]: Successfully executed SMT file /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18c2ecb-2c48-4e06-8036-2a3d89c931fa/chc-comp25-scripts/participants/UltimateUnihorn/../../../chc-comp24-benchmarks/LIA-Lin/chc-comp24-LIA-Lin-295.smt2
[2025-04-28 21:21:49,257 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-04-28 21:21:49,258 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2025-04-28 21:21:49,259 INFO  L112        PluginConnector]: ------------------------ChcToBoogie----------------------------
[2025-04-28 21:21:49,259 INFO  L270        PluginConnector]: Initializing ChcToBoogie...
[2025-04-28 21:21:49,259 INFO  L274        PluginConnector]: ChcToBoogie initialized
[2025-04-28 21:21:49,262 INFO  L184        PluginConnector]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:49" (1/1) ...
[2025-04-28 21:21:49,301 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:49 Unit
[2025-04-28 21:21:49,303 INFO  L131        PluginConnector]: ------------------------ END ChcToBoogie----------------------------
[2025-04-28 21:21:49,304 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-04-28 21:21:49,305 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-04-28 21:21:49,305 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-04-28 21:21:49,322 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:49" (1/1) ...
[2025-04-28 21:21:49,322 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:49" (1/1) ...
[2025-04-28 21:21:49,362 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:49" (1/1) ...
[2025-04-28 21:21:49,366 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:49" (1/1) ...
[2025-04-28 21:21:49,379 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:49" (1/1) ...
[2025-04-28 21:21:49,380 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:49" (1/1) ...
[2025-04-28 21:21:49,385 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:49" (1/1) ...
[2025-04-28 21:21:49,387 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:49" (1/1) ...
[2025-04-28 21:21:49,392 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:49" (1/1) ...
[2025-04-28 21:21:49,418 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-04-28 21:21:49,419 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-04-28 21:21:49,419 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-04-28 21:21:49,419 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-04-28 21:21:49,420 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:49" (1/1) ...
[2025-04-28 21:21:49,423 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2025-04-28 21:21:49,438 INFO  L189       MonitoredProcess]: No working directory specified, using /usr/bin/z3
[2025-04-28 21:21:49,454 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 21:21:49,462 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 21:21:49,470 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure False given in one single declaration
[2025-04-28 21:21:49,472 INFO  L130     BoogieDeclarations]: Found specification of procedure False
[2025-04-28 21:21:49,472 INFO  L138     BoogieDeclarations]: Found implementation of procedure False
[2025-04-28 21:21:49,472 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Assert .HSH0.CLN Main.java, line 13 given in one single declaration
[2025-04-28 21:21:49,472 INFO  L130     BoogieDeclarations]: Found specification of procedure Assert .HSH0.CLN Main.java, line 13
[2025-04-28 21:21:49,473 INFO  L138     BoogieDeclarations]: Found implementation of procedure Assert .HSH0.CLN Main.java, line 13
[2025-04-28 21:21:49,473 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_6 given in one single declaration
[2025-04-28 21:21:49,473 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_6
[2025-04-28 21:21:49,473 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_6
[2025-04-28 21:21:49,473 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_5 given in one single declaration
[2025-04-28 21:21:49,473 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_5
[2025-04-28 21:21:49,473 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_5
[2025-04-28 21:21:49,473 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_4 given in one single declaration
[2025-04-28 21:21:49,473 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_4
[2025-04-28 21:21:49,474 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_4
[2025-04-28 21:21:49,474 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_3 given in one single declaration
[2025-04-28 21:21:49,474 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_3
[2025-04-28 21:21:49,476 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_3
[2025-04-28 21:21:49,476 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_2 given in one single declaration
[2025-04-28 21:21:49,476 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_2
[2025-04-28 21:21:49,476 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_2
[2025-04-28 21:21:49,476 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_1 given in one single declaration
[2025-04-28 21:21:49,476 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_1
[2025-04-28 21:21:49,476 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13_1
[2025-04-28 21:21:49,476 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13 given in one single declaration
[2025-04-28 21:21:49,476 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13
[2025-04-28 21:21:49,476 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_Block13
[2025-04-28 21:21:49,477 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_pre given in one single declaration
[2025-04-28 21:21:49,477 INFO  L130     BoogieDeclarations]: Found specification of procedure <Main.CLN void main(JayArray_java_lang_String)>_pre
[2025-04-28 21:21:49,477 INFO  L138     BoogieDeclarations]: Found implementation of procedure <Main.CLN void main(JayArray_java_lang_String)>_pre
[2025-04-28 21:21:49,477 INFO  L124     BoogieDeclarations]: Specification and implementation of procedure Ultimate.START given in one single declaration
[2025-04-28 21:21:49,477 INFO  L130     BoogieDeclarations]: Found specification of procedure Ultimate.START
[2025-04-28 21:21:49,477 INFO  L138     BoogieDeclarations]: Found implementation of procedure Ultimate.START
[2025-04-28 21:21:49,728 INFO  L234             CfgBuilder]: Building ICFG
[2025-04-28 21:21:49,730 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-04-28 21:21:50,070 INFO  L?                        ?]: Removed 61 outVars from TransFormulas that were not future-live.
[2025-04-28 21:21:50,070 INFO  L283             CfgBuilder]: Performing block encoding
[2025-04-28 21:21:50,086 INFO  L304             CfgBuilder]: Using library mode
[2025-04-28 21:21:50,088 INFO  L312             CfgBuilder]: Removed 3 assume(true) statements.
[2025-04-28 21:21:50,089 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:50 BoogieIcfgContainer
[2025-04-28 21:21:50,089 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-04-28 21:21:50,092 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-04-28 21:21:50,093 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-04-28 21:21:50,097 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-04-28 21:21:50,098 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 28.04 09:21:49" (1/3) ...
[2025-04-28 21:21:50,099 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e6876f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 28.04 09:21:50, skipping insertion in model container
[2025-04-28 21:21:50,100 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 28.04 09:21:49" (2/3) ...
[2025-04-28 21:21:50,100 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e6876f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:21:50, skipping insertion in model container
[2025-04-28 21:21:50,100 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:21:50" (3/3) ...
[2025-04-28 21:21:50,101 INFO  L128   eAbstractionObserver]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver
[2025-04-28 21:21:50,118 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-04-28 21:21:50,121 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver that has 11 procedures, 42 locations, 54 edges, 11 initial locations, 0 loop locations, and 1 error locations.
[2025-04-28 21:21:50,174 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-04-28 21:21:50,192 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;@778bc810, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-04-28 21:21:50,192 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-04-28 21:21:50,196 INFO  L278                IsEmpty]: Start isEmpty. Operand  has 42 states, 19 states have (on average 1.105263157894737) internal successors, (21), 21 states have internal predecessors, (21), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11)
[2025-04-28 21:21:50,204 INFO  L284                IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2025-04-28 21:21:50,204 INFO  L210           NwaCegarLoop]: Found error trace
[2025-04-28 21:21:50,205 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]
[2025-04-28 21:21:50,205 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY === [Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY] ===
[2025-04-28 21:21:50,210 INFO  L155       PredicateUnifier]: Initialized classic predicate unifier
[2025-04-28 21:21:50,211 INFO  L85        PathProgramCache]: Analyzing trace with hash 83188587, now seen corresponding path program 1 times
[2025-04-28 21:21:50,218 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-04-28 21:21:50,218 INFO  L324   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373279060]
[2025-04-28 21:21:50,219 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-04-28 21:21:50,219 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-04-28 21:21:50,305 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes.
[2025-04-28 21:21:50,455 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements.
[2025-04-28 21:21:50,455 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-04-28 21:21:50,456 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-04-28 21:21:50,926 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 21:21:50,926 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-04-28 21:21:50,926 INFO  L324   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373279060]
[2025-04-28 21:21:50,927 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373279060] provided 1 perfect and 0 imperfect interpolant sequences
[2025-04-28 21:21:50,928 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-04-28 21:21:50,931 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-04-28 21:21:50,932 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189020541]
[2025-04-28 21:21:50,933 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-04-28 21:21:50,938 INFO  L562      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-04-28 21:21:50,940 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-04-28 21:21:50,973 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-04-28 21:21:50,974 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-04-28 21:21:50,976 INFO  L87              Difference]: Start difference. First operand  has 42 states, 19 states have (on average 1.105263157894737) internal successors, (21), 21 states have internal predecessors, (21), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) Second operand  has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10)
[2025-04-28 21:21:51,088 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-04-28 21:21:51,090 INFO  L93              Difference]: Finished difference Result 34 states and 35 transitions.
[2025-04-28 21:21:51,091 INFO  L140   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-04-28 21:21:51,093 INFO  L79                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 38
[2025-04-28 21:21:51,094 INFO  L85                 Accepts]: Finished accepts. some prefix is accepted.
[2025-04-28 21:21:51,109 INFO  L225             Difference]: With dead ends: 34
[2025-04-28 21:21:51,114 INFO  L226             Difference]: Without dead ends: 0
[2025-04-28 21:21:51,116 INFO  L436           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-04-28 21:21:51,126 INFO  L437           NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-04-28 21:21:51,126 INFO  L438           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 1 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-04-28 21:21:51,153 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2025-04-28 21:21:51,170 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2025-04-28 21:21:51,183 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 21:21:51,195 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2025-04-28 21:21:51,196 INFO  L79                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38
[2025-04-28 21:21:51,197 INFO  L85                 Accepts]: Finished accepts. word is rejected.
[2025-04-28 21:21:51,201 INFO  L485      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2025-04-28 21:21:51,201 INFO  L486      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10)
[2025-04-28 21:21:51,201 INFO  L278                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2025-04-28 21:21:51,202 INFO  L284                IsEmpty]: Finished isEmpty. No accepting run.
[2025-04-28 21:21:51,205 INFO  L790   garLoopResultBuilder]: Registering result SAFE for location Ultimate.STARTErr0ASSERT_VIOLATIONCHC_SATISFIABILITY (0 of 1 remaining)
[2025-04-28 21:21:51,209 WARN  L466      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-04-28 21:21:51,216 INFO  L422         BasicCegarLoop]: Path program histogram: [1]
[2025-04-28 21:21:51,224 INFO  L171   ceAbstractionStarter]: Computing trace abstraction results
[2025-04-28 21:21:51,229 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 09:21:51 BoogieIcfgContainer
[2025-04-28 21:21:51,229 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2025-04-28 21:21:51,230 INFO  L158              Benchmark]: Toolchain (without parser) took 1971.68ms. Allocated memory is still 234.9MB. Free memory was 152.7MB in the beginning and 189.8MB in the end (delta: -37.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:51,230 INFO  L158              Benchmark]: SmtParser took 0.36ms. Allocated memory is still 234.9MB. Free memory is still 171.1MB. There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:51,230 INFO  L158              Benchmark]: ChcToBoogie took 44.60ms. Allocated memory is still 234.9MB. Free memory was 152.7MB in the beginning and 150.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:51,231 INFO  L158              Benchmark]: Boogie Preprocessor took 114.23ms. Allocated memory is still 234.9MB. Free memory was 150.6MB in the beginning and 146.9MB in the end (delta: 3.7MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
[2025-04-28 21:21:51,231 INFO  L158              Benchmark]: RCFGBuilder took 669.90ms. Allocated memory is still 234.9MB. Free memory was 146.9MB in the beginning and 112.6MB in the end (delta: 34.3MB). Peak memory consumption was 33.6MB. Max. memory is 33.6GB.
[2025-04-28 21:21:51,231 INFO  L158              Benchmark]: TraceAbstraction took 1136.80ms. Allocated memory is still 234.9MB. Free memory was 112.6MB in the beginning and 189.8MB in the end (delta: -77.3MB). There was no memory consumed. Max. memory is 33.6GB.
[2025-04-28 21:21:51,233 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * SmtParser took 0.36ms. Allocated memory is still 234.9MB. Free memory is still 171.1MB. There was no memory consumed. Max. memory is 33.6GB.
 * ChcToBoogie took 44.60ms. Allocated memory is still 234.9MB. Free memory was 152.7MB in the beginning and 150.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 33.6GB.
 * Boogie Preprocessor took 114.23ms. Allocated memory is still 234.9MB. Free memory was 150.6MB in the beginning and 146.9MB in the end (delta: 3.7MB). Peak memory consumption was 16.8MB. Max. memory is 33.6GB.
 * RCFGBuilder took 669.90ms. Allocated memory is still 234.9MB. Free memory was 146.9MB in the beginning and 112.6MB in the end (delta: 34.3MB). Peak memory consumption was 33.6MB. Max. memory is 33.6GB.
 * TraceAbstraction took 1136.80ms. Allocated memory is still 234.9MB. Free memory was 112.6MB in the beginning and 189.8MB in the end (delta: -77.3MB). 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 11 procedures, 42 locations, 54 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 35 mSDtfsCounter, 1 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 21:21:51,248 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
