/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-31.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 07:10:25,825 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 07:10:25,864 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 07:10:25,867 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 07:10:25,868 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 07:10:25,881 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 07:10:25,882 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 07:10:25,882 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 07:10:25,882 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 07:10:25,882 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 07:10:25,883 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 07:10:25,883 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 07:10:25,883 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 07:10:25,884 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 07:10:25,884 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 07:10:25,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 07:10:25,884 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 07:10:25,884 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 07:10:25,885 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 07:10:25,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 07:10:25,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 07:10:25,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 07:10:25,886 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 07:10:25,886 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 07:10:25,886 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 07:10:25,886 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 07:10:25,886 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 07:10:25,886 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 07:10:25,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 07:10:25,887 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 07:10:25,887 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 07:10:25,887 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 07:10:25,887 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 07:10:25,887 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 07:10:25,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 07:10:25,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 07:10:25,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 07:10:25,888 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 07:10:25,888 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 07:10:25,888 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 07:10:25,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 07:10:25,889 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 07:10:25,889 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 07:10:25,889 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 07:10:25,895 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 07:10:25,896 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 07:10:25,896 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 07:10:26,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 07:10:26,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 07:10:26,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 07:10:26,078 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 07:10:26,079 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 07:10:26,080 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-31.i [2023-12-23 07:10:27,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 07:10:27,411 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 07:10:27,411 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-31.i [2023-12-23 07:10:27,422 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/660de1f33/5ae52c9b8f9546ff96cb7f4b6cdd3440/FLAG4994375ea [2023-12-23 07:10:27,433 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/660de1f33/5ae52c9b8f9546ff96cb7f4b6cdd3440 [2023-12-23 07:10:27,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 07:10:27,436 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 07:10:27,438 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 07:10:27,438 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 07:10:27,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 07:10:27,442 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:10:27" (1/1) ... [2023-12-23 07:10:27,443 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d6d750 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:10:27, skipping insertion in model container [2023-12-23 07:10:27,443 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 07:10:27" (1/1) ... [2023-12-23 07:10:27,469 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 07:10:27,560 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-31.i[919,932] [2023-12-23 07:10:27,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 07:10:27,612 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 07:10:27,620 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-31.i[919,932] [2023-12-23 07:10:27,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 07:10:27,674 INFO L206 MainTranslator]: Completed translation [2023-12-23 07:10:27,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:10:27 WrapperNode [2023-12-23 07:10:27,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 07:10:27,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 07:10:27,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 07:10:27,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 07:10:27,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:10:27" (1/1) ... [2023-12-23 07:10:27,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:10:27" (1/1) ... [2023-12-23 07:10:27,714 INFO L138 Inliner]: procedures = 27, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 196 [2023-12-23 07:10:27,714 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 07:10:27,715 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 07:10:27,715 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 07:10:27,715 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 07:10:27,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:10:27" (1/1) ... [2023-12-23 07:10:27,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:10:27" (1/1) ... [2023-12-23 07:10:27,726 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:10:27" (1/1) ... [2023-12-23 07:10:27,737 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 07:10:27,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:10:27" (1/1) ... [2023-12-23 07:10:27,738 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:10:27" (1/1) ... [2023-12-23 07:10:27,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:10:27" (1/1) ... [2023-12-23 07:10:27,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:10:27" (1/1) ... [2023-12-23 07:10:27,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:10:27" (1/1) ... [2023-12-23 07:10:27,753 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:10:27" (1/1) ... [2023-12-23 07:10:27,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 07:10:27,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 07:10:27,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 07:10:27,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 07:10:27,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:10:27" (1/1) ... [2023-12-23 07:10:27,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 07:10:27,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 07:10:27,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-23 07:10:27,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 07:10:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 07:10:27,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 07:10:27,828 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 07:10:27,829 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 07:10:27,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 07:10:27,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 07:10:27,918 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 07:10:27,919 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 07:10:28,413 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 07:10:28,441 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 07:10:28,441 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 07:10:28,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:10:28 BoogieIcfgContainer [2023-12-23 07:10:28,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 07:10:28,443 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 07:10:28,443 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 07:10:28,452 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 07:10:28,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 07:10:27" (1/3) ... [2023-12-23 07:10:28,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57da3dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:10:28, skipping insertion in model container [2023-12-23 07:10:28,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 07:10:27" (2/3) ... [2023-12-23 07:10:28,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57da3dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 07:10:28, skipping insertion in model container [2023-12-23 07:10:28,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 07:10:28" (3/3) ... [2023-12-23 07:10:28,455 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-31.i [2023-12-23 07:10:28,468 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 07:10:28,468 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 07:10:28,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 07:10:28,517 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@192899ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 07:10:28,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 07:10:28,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 51 states have (on average 1.4901960784313726) internal successors, (76), 52 states have internal predecessors, (76), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-23 07:10:28,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-23 07:10:28,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 07:10:28,538 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 07:10:28,538 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 07:10:28,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 07:10:28,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1773548051, now seen corresponding path program 1 times [2023-12-23 07:10:28,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 07:10:28,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078558115] [2023-12-23 07:10:28,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 07:10:28,552 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 07:10:28,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 07:10:28,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 07:10:28,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 07:10:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 07:10:28,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 07:10:28,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 07:10:29,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 708 proven. 24 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2023-12-23 07:10:29,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 07:10:29,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 60 proven. 24 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2023-12-23 07:10:29,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 07:10:29,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078558115] [2023-12-23 07:10:29,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078558115] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 07:10:29,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 07:10:29,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-23 07:10:29,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915441406] [2023-12-23 07:10:29,243 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 07:10:29,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 07:10:29,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 07:10:29,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 07:10:29,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-23 07:10:29,278 INFO L87 Difference]: Start difference. First operand has 83 states, 51 states have (on average 1.4901960784313726) internal successors, (76), 52 states have internal predecessors, (76), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-23 07:10:30,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 07:10:30,074 INFO L93 Difference]: Finished difference Result 288 states and 546 transitions. [2023-12-23 07:10:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-23 07:10:30,077 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 181 [2023-12-23 07:10:30,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 07:10:30,084 INFO L225 Difference]: With dead ends: 288 [2023-12-23 07:10:30,084 INFO L226 Difference]: Without dead ends: 206 [2023-12-23 07:10:30,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-23 07:10:30,090 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 321 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-23 07:10:30,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 384 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-23 07:10:30,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-12-23 07:10:30,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 191. [2023-12-23 07:10:30,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 108 states have (on average 1.3240740740740742) internal successors, (143), 110 states have internal predecessors, (143), 78 states have call successors, (78), 4 states have call predecessors, (78), 4 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-23 07:10:30,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 299 transitions. [2023-12-23 07:10:30,147 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 299 transitions. Word has length 181 [2023-12-23 07:10:30,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 07:10:30,148 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 299 transitions. [2023-12-23 07:10:30,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-23 07:10:30,148 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 299 transitions. [2023-12-23 07:10:30,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-23 07:10:30,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 07:10:30,152 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 07:10:30,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 07:10:30,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 07:10:30,359 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 07:10:30,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 07:10:30,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1510301995, now seen corresponding path program 1 times [2023-12-23 07:10:30,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 07:10:30,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737423490] [2023-12-23 07:10:30,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 07:10:30,361 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 07:10:30,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 07:10:30,362 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 07:10:30,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 07:10:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 07:10:30,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-23 07:10:30,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 07:10:31,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 870 proven. 261 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2023-12-23 07:10:31,792 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 07:10:31,887 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 07:10:31,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737423490] [2023-12-23 07:10:31,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737423490] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 07:10:31,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2002245075] [2023-12-23 07:10:31,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 07:10:31,887 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 07:10:31,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 07:10:31,945 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 07:10:31,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-23 07:10:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 07:10:32,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 07:10:32,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 07:10:33,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 942 proven. 114 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2023-12-23 07:10:33,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 07:10:33,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2002245075] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 07:10:33,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 07:10:33,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 8] total 22 [2023-12-23 07:10:33,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485360145] [2023-12-23 07:10:33,067 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 07:10:33,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-23 07:10:33,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 07:10:33,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-23 07:10:33,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2023-12-23 07:10:33,070 INFO L87 Difference]: Start difference. First operand 191 states and 299 transitions. Second operand has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 20 states have internal predecessors, (96), 8 states have call successors, (53), 8 states have call predecessors, (53), 11 states have return successors, (54), 8 states have call predecessors, (54), 8 states have call successors, (54) [2023-12-23 07:10:34,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 07:10:34,167 INFO L93 Difference]: Finished difference Result 510 states and 726 transitions. [2023-12-23 07:10:34,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-23 07:10:34,173 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 20 states have internal predecessors, (96), 8 states have call successors, (53), 8 states have call predecessors, (53), 11 states have return successors, (54), 8 states have call predecessors, (54), 8 states have call successors, (54) Word has length 181 [2023-12-23 07:10:34,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 07:10:34,181 INFO L225 Difference]: With dead ends: 510 [2023-12-23 07:10:34,182 INFO L226 Difference]: Without dead ends: 350 [2023-12-23 07:10:34,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=537, Invalid=1625, Unknown=0, NotChecked=0, Total=2162 [2023-12-23 07:10:34,188 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 398 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-23 07:10:34,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 460 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-23 07:10:34,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-12-23 07:10:34,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 330. [2023-12-23 07:10:34,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 219 states have (on average 1.2922374429223744) internal successors, (283), 223 states have internal predecessors, (283), 86 states have call successors, (86), 24 states have call predecessors, (86), 24 states have return successors, (86), 82 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-23 07:10:34,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 455 transitions. [2023-12-23 07:10:34,235 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 455 transitions. Word has length 181 [2023-12-23 07:10:34,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 07:10:34,235 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 455 transitions. [2023-12-23 07:10:34,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.363636363636363) internal successors, (96), 20 states have internal predecessors, (96), 8 states have call successors, (53), 8 states have call predecessors, (53), 11 states have return successors, (54), 8 states have call predecessors, (54), 8 states have call successors, (54) [2023-12-23 07:10:34,236 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 455 transitions. [2023-12-23 07:10:34,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-23 07:10:34,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 07:10:34,237 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 07:10:34,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-23 07:10:34,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 07:10:34,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 07:10:34,645 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 07:10:34,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 07:10:34,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1567560297, now seen corresponding path program 1 times [2023-12-23 07:10:34,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 07:10:34,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753743450] [2023-12-23 07:10:34,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 07:10:34,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 07:10:34,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 07:10:34,650 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 07:10:34,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 07:10:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 07:10:34,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-23 07:10:34,896 INFO L285 TraceCheckSpWp]: Computing forward predicates...