/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-18.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 08:44:37,644 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 08:44:37,704 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-06 08:44:37,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 08:44:37,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 08:44:37,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 08:44:37,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 08:44:37,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 08:44:37,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 08:44:37,725 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 08:44:37,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 08:44:37,726 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 08:44:37,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 08:44:37,727 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 08:44:37,727 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 08:44:37,729 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 08:44:37,729 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 08:44:37,730 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 08:44:37,730 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 08:44:37,731 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 08:44:37,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 08:44:37,732 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 08:44:37,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 08:44:37,733 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 08:44:37,733 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 08:44:37,733 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 08:44:37,733 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 08:44:37,733 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 08:44:37,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 08:44:37,733 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 08:44:37,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 08:44:37,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 08:44:37,734 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 08:44:37,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 08:44:37,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:44:37,734 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 08:44:37,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 08:44:37,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 08:44:37,735 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 08:44:37,735 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 08:44:37,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 08:44:37,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 08:44:37,735 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 08:44:37,735 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 08:44:37,735 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 08:44:37,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 08:44:37,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 08:44:37,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 08:44:37,942 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 08:44:37,942 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 08:44:37,943 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-18.i [2024-11-06 08:44:39,201 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 08:44:39,412 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 08:44:39,413 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount500_file-18.i [2024-11-06 08:44:39,429 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad4f55e7/04949ddc67214a908cbb902eae91fd1b/FLAG1b5647fd6 [2024-11-06 08:44:39,752 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ad4f55e7/04949ddc67214a908cbb902eae91fd1b [2024-11-06 08:44:39,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 08:44:39,755 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 08:44:39,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 08:44:39,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 08:44:39,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 08:44:39,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:44:39" (1/1) ... [2024-11-06 08:44:39,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72523215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:39, skipping insertion in model container [2024-11-06 08:44:39,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:44:39" (1/1) ... [2024-11-06 08:44:39,815 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 08:44:39,942 WARN L250 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_operatoramount_amount500_file-18.i[916,929] [2024-11-06 08:44:40,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:44:40,142 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 08:44:40,154 WARN L250 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_operatoramount_amount500_file-18.i[916,929] [2024-11-06 08:44:40,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:44:40,278 INFO L204 MainTranslator]: Completed translation [2024-11-06 08:44:40,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:40 WrapperNode [2024-11-06 08:44:40,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 08:44:40,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 08:44:40,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 08:44:40,281 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 08:44:40,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:40" (1/1) ... [2024-11-06 08:44:40,311 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:40" (1/1) ... [2024-11-06 08:44:40,357 INFO L138 Inliner]: procedures = 27, calls = 90, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 597 [2024-11-06 08:44:40,358 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 08:44:40,360 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 08:44:40,360 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 08:44:40,360 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 08:44:40,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:40" (1/1) ... [2024-11-06 08:44:40,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:40" (1/1) ... [2024-11-06 08:44:40,382 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:40" (1/1) ... [2024-11-06 08:44:40,422 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]. [2024-11-06 08:44:40,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:40" (1/1) ... [2024-11-06 08:44:40,423 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:40" (1/1) ... [2024-11-06 08:44:40,455 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:40" (1/1) ... [2024-11-06 08:44:40,459 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:40" (1/1) ... [2024-11-06 08:44:40,469 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:40" (1/1) ... [2024-11-06 08:44:40,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:40" (1/1) ... [2024-11-06 08:44:40,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 08:44:40,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 08:44:40,494 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 08:44:40,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 08:44:40,495 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:40" (1/1) ... [2024-11-06 08:44:40,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:44:40,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:44:40,520 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) [2024-11-06 08:44:40,523 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 [2024-11-06 08:44:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 08:44:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 08:44:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 08:44:40,542 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 08:44:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 08:44:40,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 08:44:40,645 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 08:44:40,647 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 08:45:16,962 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-11-06 08:45:16,962 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 08:45:16,978 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 08:45:16,979 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 08:45:16,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:45:16 BoogieIcfgContainer [2024-11-06 08:45:16,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 08:45:16,981 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 08:45:16,982 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 08:45:16,984 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 08:45:16,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:44:39" (1/3) ... [2024-11-06 08:45:16,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e7e0ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:45:16, skipping insertion in model container [2024-11-06 08:45:16,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:44:40" (2/3) ... [2024-11-06 08:45:16,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e7e0ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:45:16, skipping insertion in model container [2024-11-06 08:45:16,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:45:16" (3/3) ... [2024-11-06 08:45:16,987 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-18.i [2024-11-06 08:45:16,999 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 08:45:16,999 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 08:45:17,058 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 08:45:17,065 INFO L333 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=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;@3bd2e20d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 08:45:17,066 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 08:45:17,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 242 states, 162 states have (on average 1.5246913580246915) internal successors, (247), 163 states have internal predecessors, (247), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-06 08:45:17,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2024-11-06 08:45:17,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:45:17,104 INFO L215 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:45:17,104 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:45:17,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:45:17,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1661837206, now seen corresponding path program 1 times [2024-11-06 08:45:17,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:45:17,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747401267] [2024-11-06 08:45:17,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:45:17,131 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 [2024-11-06 08:45:17,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:45:17,134 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) [2024-11-06 08:45:17,135 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 [2024-11-06 08:45:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:45:19,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 08:45:19,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:45:19,527 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 4904 proven. 0 refuted. 0 times theorem prover too weak. 6800 trivial. 0 not checked. [2024-11-06 08:45:19,528 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:45:19,528 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:45:19,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747401267] [2024-11-06 08:45:19,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [747401267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:45:19,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:45:19,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 08:45:19,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652862036] [2024-11-06 08:45:19,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:45:19,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 08:45:19,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:45:19,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 08:45:19,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 08:45:19,558 INFO L87 Difference]: Start difference. First operand has 242 states, 162 states have (on average 1.5246913580246915) internal successors, (247), 163 states have internal predecessors, (247), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) Second operand has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2024-11-06 08:45:19,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:45:19,609 INFO L93 Difference]: Finished difference Result 477 states and 873 transitions. [2024-11-06 08:45:19,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 08:45:19,611 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) Word has length 507 [2024-11-06 08:45:19,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:45:19,618 INFO L225 Difference]: With dead ends: 477 [2024-11-06 08:45:19,618 INFO L226 Difference]: Without dead ends: 238 [2024-11-06 08:45:19,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 506 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 08:45:19,625 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 08:45:19,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 08:45:19,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-06 08:45:19,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2024-11-06 08:45:19,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 159 states have (on average 1.5031446540880504) internal successors, (239), 159 states have internal predecessors, (239), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-06 08:45:19,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 393 transitions. [2024-11-06 08:45:19,698 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 393 transitions. Word has length 507 [2024-11-06 08:45:19,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:45:19,699 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 393 transitions. [2024-11-06 08:45:19,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 64.5) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2024-11-06 08:45:19,700 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 393 transitions. [2024-11-06 08:45:19,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2024-11-06 08:45:19,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:45:19,712 INFO L215 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:45:19,789 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 [2024-11-06 08:45:19,912 WARN L453 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 [2024-11-06 08:45:19,913 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:45:19,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:45:19,914 INFO L85 PathProgramCache]: Analyzing trace with hash -2010824792, now seen corresponding path program 1 times [2024-11-06 08:45:19,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:45:19,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051084898] [2024-11-06 08:45:19,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:45:19,918 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 [2024-11-06 08:45:19,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:45:19,920 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) [2024-11-06 08:45:19,924 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 [2024-11-06 08:45:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:45:22,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-06 08:45:22,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:45:50,369 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 5929 proven. 240 refuted. 0 times theorem prover too weak. 5535 trivial. 0 not checked. [2024-11-06 08:45:50,370 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:45:51,479 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:45:51,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051084898] [2024-11-06 08:45:51,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051084898] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 08:45:51,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926470711] [2024-11-06 08:45:51,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:45:51,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:45:51,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:45:51,481 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) [2024-11-06 08:45:51,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 08:45:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:45:53,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 08:45:53,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:45:54,869 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2024-11-06 08:45:54,869 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:45:54,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926470711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:45:54,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 08:45:54,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-06 08:45:54,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759614898] [2024-11-06 08:45:54,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:45:54,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 08:45:54,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:45:54,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 08:45:54,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-06 08:45:54,874 INFO L87 Difference]: Start difference. First operand 238 states and 393 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-06 08:46:00,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:46:04,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:46:04,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:46:04,593 INFO L93 Difference]: Finished difference Result 704 states and 1165 transitions. [2024-11-06 08:46:04,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 08:46:04,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) Word has length 507 [2024-11-06 08:46:04,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:46:04,601 INFO L225 Difference]: With dead ends: 704 [2024-11-06 08:46:04,601 INFO L226 Difference]: Without dead ends: 469 [2024-11-06 08:46:04,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1086 GetRequests, 1078 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-06 08:46:04,603 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 362 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-06 08:46:04,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 846 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2024-11-06 08:46:04,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-06 08:46:04,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 268. [2024-11-06 08:46:04,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 189 states have (on average 1.5185185185185186) internal successors, (287), 189 states have internal predecessors, (287), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-06 08:46:04,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 441 transitions. [2024-11-06 08:46:04,632 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 441 transitions. Word has length 507 [2024-11-06 08:46:04,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:46:04,633 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 441 transitions. [2024-11-06 08:46:04,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 1 states have call predecessors, (77), 1 states have call successors, (77) [2024-11-06 08:46:04,634 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 441 transitions. [2024-11-06 08:46:04,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2024-11-06 08:46:04,641 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:46:04,641 INFO L215 NwaCegarLoop]: trace histogram [77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:46:04,717 INFO L552 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)] Ended with exit code 0 [2024-11-06 08:46:05,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-06 08:46:05,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 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=3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:46:05,042 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:46:05,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:46:05,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1094131036, now seen corresponding path program 1 times [2024-11-06 08:46:05,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:46:05,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631279264] [2024-11-06 08:46:05,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:46:05,047 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 [2024-11-06 08:46:05,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:46:05,050 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) [2024-11-06 08:46:05,051 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 [2024-11-06 08:46:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:46:07,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-06 08:46:07,177 INFO L278 TraceCheckSpWp]: Computing forward predicates...