/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-56.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 03:17:46,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 03:17:46,779 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 03:17:46,785 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 03:17:46,785 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 03:17:46,820 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 03:17:46,820 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 03:17:46,821 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 03:17:46,821 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 03:17:46,825 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 03:17:46,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 03:17:46,826 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 03:17:46,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 03:17:46,828 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 03:17:46,828 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 03:17:46,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 03:17:46,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 03:17:46,829 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 03:17:46,829 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 03:17:46,829 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 03:17:46,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 03:17:46,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 03:17:46,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 03:17:46,830 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 03:17:46,830 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 03:17:46,831 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 03:17:46,831 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 03:17:46,831 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 03:17:46,831 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 03:17:46,832 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 03:17:46,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 03:17:46,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 03:17:46,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:17:46,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 03:17:46,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 03:17:46,833 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 03:17:46,833 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 03:17:46,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 03:17:46,834 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 03:17:46,834 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 03:17:46,834 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 03:17:46,834 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 03:17:46,834 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 03:17:46,835 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 03:17:47,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 03:17:47,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 03:17:47,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 03:17:47,097 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 03:17:47,098 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 03:17:47,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-56.i [2023-12-16 03:17:48,322 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 03:17:48,519 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 03:17:48,520 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-56.i [2023-12-16 03:17:48,539 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fec8fef6/518708192dc74cdc8a00c27e01b01697/FLAGb3f51efe4 [2023-12-16 03:17:48,552 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fec8fef6/518708192dc74cdc8a00c27e01b01697 [2023-12-16 03:17:48,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 03:17:48,555 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 03:17:48,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 03:17:48,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 03:17:48,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 03:17:48,562 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:17:48" (1/1) ... [2023-12-16 03:17:48,563 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51626bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:17:48, skipping insertion in model container [2023-12-16 03:17:48,563 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:17:48" (1/1) ... [2023-12-16 03:17:48,591 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 03:17:48,746 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-pr-cn_file-56.i[919,932] [2023-12-16 03:17:48,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:17:48,853 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 03:17:48,867 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-pr-cn_file-56.i[919,932] [2023-12-16 03:17:48,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:17:48,937 INFO L206 MainTranslator]: Completed translation [2023-12-16 03:17:48,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:17:48 WrapperNode [2023-12-16 03:17:48,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 03:17:48,939 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 03:17:48,939 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 03:17:48,939 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 03:17:48,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:17:48" (1/1) ... [2023-12-16 03:17:48,966 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:17:48" (1/1) ... [2023-12-16 03:17:49,014 INFO L138 Inliner]: procedures = 26, calls = 67, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 277 [2023-12-16 03:17:49,015 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 03:17:49,016 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 03:17:49,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 03:17:49,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 03:17:49,028 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:17:48" (1/1) ... [2023-12-16 03:17:49,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:17:48" (1/1) ... [2023-12-16 03:17:49,044 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:17:48" (1/1) ... [2023-12-16 03:17:49,073 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]. [2023-12-16 03:17:49,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:17:48" (1/1) ... [2023-12-16 03:17:49,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:17:48" (1/1) ... [2023-12-16 03:17:49,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:17:48" (1/1) ... [2023-12-16 03:17:49,099 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:17:48" (1/1) ... [2023-12-16 03:17:49,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:17:48" (1/1) ... [2023-12-16 03:17:49,124 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:17:48" (1/1) ... [2023-12-16 03:17:49,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 03:17:49,138 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 03:17:49,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 03:17:49,138 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 03:17:49,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:17:48" (1/1) ... [2023-12-16 03:17:49,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:17:49,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:17:49,186 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) [2023-12-16 03:17:49,248 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 [2023-12-16 03:17:49,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 03:17:49,255 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 03:17:49,256 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 03:17:49,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 03:17:49,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 03:17:49,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 03:17:49,368 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 03:17:49,372 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 03:17:49,956 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 03:17:50,015 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 03:17:50,015 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 03:17:50,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:17:50 BoogieIcfgContainer [2023-12-16 03:17:50,015 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 03:17:50,017 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 03:17:50,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 03:17:50,020 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 03:17:50,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:17:48" (1/3) ... [2023-12-16 03:17:50,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2502560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:17:50, skipping insertion in model container [2023-12-16 03:17:50,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:17:48" (2/3) ... [2023-12-16 03:17:50,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2502560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:17:50, skipping insertion in model container [2023-12-16 03:17:50,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:17:50" (3/3) ... [2023-12-16 03:17:50,023 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-56.i [2023-12-16 03:17:50,039 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 03:17:50,039 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 03:17:50,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 03:17:50,105 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;@2cc612db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 03:17:50,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 03:17:50,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 63 states have internal predecessors, (83), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-16 03:17:50,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-12-16 03:17:50,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:17:50,142 INFO L195 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:17:50,142 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:17:50,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:17:50,147 INFO L85 PathProgramCache]: Analyzing trace with hash -158346510, now seen corresponding path program 1 times [2023-12-16 03:17:50,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:17:50,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461432923] [2023-12-16 03:17:50,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:17:50,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:17:50,436 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:17:50,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1737639261] [2023-12-16 03:17:50,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:17:50,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:17:50,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:17:50,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:17:50,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 03:17:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:17:50,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 03:17:50,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:17:50,994 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2023-12-16 03:17:50,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:17:50,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:17:50,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461432923] [2023-12-16 03:17:50,995 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:17:50,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737639261] [2023-12-16 03:17:50,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737639261] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:17:50,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:17:50,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 03:17:50,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7921420] [2023-12-16 03:17:50,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:17:51,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 03:17:51,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:17:51,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 03:17:51,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 03:17:51,038 INFO L87 Difference]: Start difference. First operand has 119 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 63 states have internal predecessors, (83), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2023-12-16 03:17:51,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:17:51,286 INFO L93 Difference]: Finished difference Result 328 states and 590 transitions. [2023-12-16 03:17:51,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 03:17:51,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) Word has length 322 [2023-12-16 03:17:51,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:17:51,307 INFO L225 Difference]: With dead ends: 328 [2023-12-16 03:17:51,307 INFO L226 Difference]: Without dead ends: 210 [2023-12-16 03:17:51,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 03:17:51,321 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 241 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:17:51,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 698 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:17:51,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-12-16 03:17:51,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 159. [2023-12-16 03:17:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 98 states have (on average 1.3775510204081634) internal successors, (135), 99 states have internal predecessors, (135), 58 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-16 03:17:51,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 251 transitions. [2023-12-16 03:17:51,401 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 251 transitions. Word has length 322 [2023-12-16 03:17:51,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:17:51,404 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 251 transitions. [2023-12-16 03:17:51,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 1 states have call predecessors, (54), 1 states have call successors, (54) [2023-12-16 03:17:51,404 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 251 transitions. [2023-12-16 03:17:51,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-12-16 03:17:51,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:17:51,412 INFO L195 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:17:51,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 03:17:51,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-16 03:17:51,620 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:17:51,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:17:51,621 INFO L85 PathProgramCache]: Analyzing trace with hash 542718068, now seen corresponding path program 1 times [2023-12-16 03:17:51,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:17:51,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864934726] [2023-12-16 03:17:51,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:17:51,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:17:51,732 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:17:51,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [824117629] [2023-12-16 03:17:51,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:17:51,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:17:51,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:17:51,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:17:51,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 03:17:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:17:51,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 03:17:51,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:17:52,420 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 845 proven. 147 refuted. 0 times theorem prover too weak. 4732 trivial. 0 not checked. [2023-12-16 03:17:52,421 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:17:52,714 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 12 proven. 147 refuted. 0 times theorem prover too weak. 5565 trivial. 0 not checked. [2023-12-16 03:17:52,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:17:52,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864934726] [2023-12-16 03:17:52,714 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:17:52,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824117629] [2023-12-16 03:17:52,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824117629] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:17:52,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:17:52,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 03:17:52,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093164541] [2023-12-16 03:17:52,716 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:17:52,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 03:17:52,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:17:52,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 03:17:52,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 03:17:52,719 INFO L87 Difference]: Start difference. First operand 159 states and 251 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2023-12-16 03:17:53,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:17:53,113 INFO L93 Difference]: Finished difference Result 325 states and 508 transitions. [2023-12-16 03:17:53,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 03:17:53,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) Word has length 322 [2023-12-16 03:17:53,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:17:53,117 INFO L225 Difference]: With dead ends: 325 [2023-12-16 03:17:53,118 INFO L226 Difference]: Without dead ends: 160 [2023-12-16 03:17:53,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 636 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 03:17:53,120 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 80 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 03:17:53,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 262 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 03:17:53,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-16 03:17:53,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 156. [2023-12-16 03:17:53,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 95 states have internal predecessors, (124), 58 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-16 03:17:53,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 240 transitions. [2023-12-16 03:17:53,141 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 240 transitions. Word has length 322 [2023-12-16 03:17:53,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:17:53,142 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 240 transitions. [2023-12-16 03:17:53,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2023-12-16 03:17:53,142 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 240 transitions. [2023-12-16 03:17:53,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-12-16 03:17:53,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:17:53,146 INFO L195 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:17:53,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 03:17:53,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-16 03:17:53,354 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:17:53,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:17:53,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1179414864, now seen corresponding path program 1 times [2023-12-16 03:17:53,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:17:53,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811098584] [2023-12-16 03:17:53,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:17:53,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:17:53,459 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:17:53,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [544324756] [2023-12-16 03:17:53,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:17:53,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:17:53,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:17:53,467 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:17:53,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 03:17:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:17:53,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 59 conjunts are in the unsatisfiable core [2023-12-16 03:17:53,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 03:18:45,260 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 03:18:45,264 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 03:18:46,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-16 03:18:46,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown