/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_amount100_file-96.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 08:13:53,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 08:13:53,788 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 08:13:53,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 08:13:53,795 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 08:13:53,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 08:13:53,827 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 08:13:53,827 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 08:13:53,828 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 08:13:53,828 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 08:13:53,828 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 08:13:53,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 08:13:53,829 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 08:13:53,829 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 08:13:53,830 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 08:13:53,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 08:13:53,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 08:13:53,831 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 08:13:53,831 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 08:13:53,835 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 08:13:53,835 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 08:13:53,838 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 08:13:53,838 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 08:13:53,838 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 08:13:53,839 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 08:13:53,839 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 08:13:53,839 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 08:13:53,839 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 08:13:53,839 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 08:13:53,840 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 08:13:53,840 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 08:13:53,840 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 08:13:53,840 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 08:13:53,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 08:13:53,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:13:53,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 08:13:53,842 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 08:13:53,843 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 08:13:53,843 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 08:13:53,843 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 08:13:53,843 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 08:13:53,844 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 08:13:53,844 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 08:13:53,844 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 08:13:53,844 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 08:13:54,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 08:13:54,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 08:13:54,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 08:13:54,088 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 08:13:54,088 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 08:13:54,090 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-96.i [2024-11-06 08:13:55,543 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 08:13:55,736 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 08:13:55,736 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-96.i [2024-11-06 08:13:55,744 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46093ea40/c616edf8bad1447e97a66ca7cf9cb18e/FLAG02673f48e [2024-11-06 08:13:56,106 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/46093ea40/c616edf8bad1447e97a66ca7cf9cb18e [2024-11-06 08:13:56,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 08:13:56,110 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 08:13:56,111 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 08:13:56,111 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 08:13:56,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 08:13:56,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:13:56" (1/1) ... [2024-11-06 08:13:56,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b15412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:56, skipping insertion in model container [2024-11-06 08:13:56,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:13:56" (1/1) ... [2024-11-06 08:13:56,149 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 08:13:56,316 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_amount100_file-96.i[916,929] [2024-11-06 08:13:56,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:13:56,442 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 08:13:56,452 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_amount100_file-96.i[916,929] [2024-11-06 08:13:56,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:13:56,527 INFO L204 MainTranslator]: Completed translation [2024-11-06 08:13:56,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:56 WrapperNode [2024-11-06 08:13:56,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 08:13:56,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 08:13:56,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 08:13:56,532 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 08:13:56,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:56" (1/1) ... [2024-11-06 08:13:56,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:56" (1/1) ... [2024-11-06 08:13:56,589 INFO L138 Inliner]: procedures = 27, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 213 [2024-11-06 08:13:56,590 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 08:13:56,590 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 08:13:56,590 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 08:13:56,591 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 08:13:56,601 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:56" (1/1) ... [2024-11-06 08:13:56,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:56" (1/1) ... [2024-11-06 08:13:56,607 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:56" (1/1) ... [2024-11-06 08:13:56,622 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 08:13:56,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:56" (1/1) ... [2024-11-06 08:13:56,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:56" (1/1) ... [2024-11-06 08:13:56,637 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:56" (1/1) ... [2024-11-06 08:13:56,642 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:56" (1/1) ... [2024-11-06 08:13:56,650 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:56" (1/1) ... [2024-11-06 08:13:56,652 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:56" (1/1) ... [2024-11-06 08:13:56,660 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 08:13:56,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 08:13:56,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 08:13:56,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 08:13:56,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:56" (1/1) ... [2024-11-06 08:13:56,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:13:56,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:13:56,710 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 08:13:56,714 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 08:13:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 08:13:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 08:13:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 08:13:56,740 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 08:13:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 08:13:56,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 08:13:56,855 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 08:13:56,856 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 08:13:58,296 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-06 08:13:58,296 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 08:13:58,311 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 08:13:58,311 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 08:13:58,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:13:58 BoogieIcfgContainer [2024-11-06 08:13:58,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 08:13:58,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 08:13:58,316 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 08:13:58,320 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 08:13:58,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:13:56" (1/3) ... [2024-11-06 08:13:58,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c91af9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:13:58, skipping insertion in model container [2024-11-06 08:13:58,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:13:56" (2/3) ... [2024-11-06 08:13:58,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c91af9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:13:58, skipping insertion in model container [2024-11-06 08:13:58,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:13:58" (3/3) ... [2024-11-06 08:13:58,323 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-96.i [2024-11-06 08:13:58,336 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 08:13:58,336 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 08:13:58,390 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 08:13:58,395 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;@3cdc0b94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 08:13:58,396 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 08:13:58,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 61 states have internal predecessors, (86), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-06 08:13:58,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-06 08:13:58,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:13:58,413 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:58,414 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:13:58,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:13:58,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1235426740, now seen corresponding path program 1 times [2024-11-06 08:13:58,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:13:58,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553739237] [2024-11-06 08:13:58,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:13:58,430 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 08:13:58,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:13:58,431 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 08:13:58,433 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 08:13:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:13:58,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 08:13:58,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:13:58,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 1090 trivial. 0 not checked. [2024-11-06 08:13:58,908 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:13:58,909 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:13:58,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553739237] [2024-11-06 08:13:58,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553739237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:13:58,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:13:58,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 08:13:58,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643043793] [2024-11-06 08:13:58,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:13:58,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 08:13:58,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:13:58,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 08:13:58,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 08:13:58,953 INFO L87 Difference]: Start difference. First operand has 91 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 61 states have internal predecessors, (86), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-06 08:13:58,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:13:58,984 INFO L93 Difference]: Finished difference Result 175 states and 306 transitions. [2024-11-06 08:13:58,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 08:13:58,987 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 183 [2024-11-06 08:13:58,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:13:58,995 INFO L225 Difference]: With dead ends: 175 [2024-11-06 08:13:58,995 INFO L226 Difference]: Without dead ends: 87 [2024-11-06 08:13:58,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 182 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 08:13:59,002 INFO L432 NwaCegarLoop]: 135 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, 135 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 08:13:59,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 08:13:59,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-06 08:13:59,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-06 08:13:59,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 57 states have internal predecessors, (79), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-06 08:13:59,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 135 transitions. [2024-11-06 08:13:59,052 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 135 transitions. Word has length 183 [2024-11-06 08:13:59,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:13:59,053 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 135 transitions. [2024-11-06 08:13:59,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-06 08:13:59,053 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 135 transitions. [2024-11-06 08:13:59,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-06 08:13:59,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:13:59,058 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:13:59,071 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 08:13:59,258 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 08:13:59,259 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:13:59,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:13:59,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1302927532, now seen corresponding path program 1 times [2024-11-06 08:13:59,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:13:59,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705128720] [2024-11-06 08:13:59,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:13:59,262 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 08:13:59,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:13:59,266 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 08:13:59,268 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 08:13:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:13:59,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-06 08:13:59,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:14:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-06 08:14:01,321 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:14:01,321 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:14:01,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705128720] [2024-11-06 08:14:01,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1705128720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:14:01,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:14:01,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 08:14:01,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140006481] [2024-11-06 08:14:01,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:14:01,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 08:14:01,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:14:01,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 08:14:01,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 08:14:01,328 INFO L87 Difference]: Start difference. First operand 87 states and 135 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-06 08:14:03,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:14:03,642 INFO L93 Difference]: Finished difference Result 259 states and 406 transitions. [2024-11-06 08:14:03,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 08:14:03,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 183 [2024-11-06 08:14:03,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:14:03,663 INFO L225 Difference]: With dead ends: 259 [2024-11-06 08:14:03,663 INFO L226 Difference]: Without dead ends: 175 [2024-11-06 08:14:03,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-06 08:14:03,665 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 112 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-06 08:14:03,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 453 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-06 08:14:03,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-06 08:14:03,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 162. [2024-11-06 08:14:03,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 103 states have (on average 1.3786407766990292) internal successors, (142), 103 states have internal predecessors, (142), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-06 08:14:03,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 254 transitions. [2024-11-06 08:14:03,716 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 254 transitions. Word has length 183 [2024-11-06 08:14:03,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:14:03,716 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 254 transitions. [2024-11-06 08:14:03,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-06 08:14:03,717 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 254 transitions. [2024-11-06 08:14:03,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-06 08:14:03,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:14:03,722 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:14:03,738 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 [2024-11-06 08:14:03,922 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 [2024-11-06 08:14:03,923 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:14:03,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:14:03,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1424499819, now seen corresponding path program 1 times [2024-11-06 08:14:03,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:14:03,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230144297] [2024-11-06 08:14:03,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:14:03,924 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 08:14:03,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:14:03,928 INFO L229 MonitoredProcess]: Starting monitored process 4 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 08:14:03,930 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 (4)] Waiting until timeout for monitored process [2024-11-06 08:14:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:14:04,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 08:14:04,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:14:04,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-06 08:14:04,673 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:14:04,673 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:14:04,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [230144297] [2024-11-06 08:14:04,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [230144297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:14:04,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:14:04,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 08:14:04,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220966583] [2024-11-06 08:14:04,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:14:04,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 08:14:04,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:14:04,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 08:14:04,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 08:14:04,677 INFO L87 Difference]: Start difference. First operand 162 states and 254 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-06 08:14:06,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:14:06,254 INFO L93 Difference]: Finished difference Result 282 states and 442 transitions. [2024-11-06 08:14:06,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 08:14:06,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 184 [2024-11-06 08:14:06,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:14:06,270 INFO L225 Difference]: With dead ends: 282 [2024-11-06 08:14:06,270 INFO L226 Difference]: Without dead ends: 174 [2024-11-06 08:14:06,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 08:14:06,273 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 81 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-06 08:14:06,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 374 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-06 08:14:06,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-06 08:14:06,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 162. [2024-11-06 08:14:06,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 103 states have internal predecessors, (138), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-06 08:14:06,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 250 transitions. [2024-11-06 08:14:06,314 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 250 transitions. Word has length 184 [2024-11-06 08:14:06,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:14:06,315 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 250 transitions. [2024-11-06 08:14:06,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-06 08:14:06,317 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 250 transitions. [2024-11-06 08:14:06,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-06 08:14:06,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:14:06,321 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:14:06,337 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 (4)] Ended with exit code 0 [2024-11-06 08:14:06,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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 08:14:06,522 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:14:06,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:14:06,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1590603799, now seen corresponding path program 1 times [2024-11-06 08:14:06,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:14:06,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555239634] [2024-11-06 08:14:06,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:14:06,524 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 08:14:06,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:14:06,529 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 08:14:06,530 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 08:14:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:14:06,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-06 08:14:06,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:15:09,371 WARN L286 SmtUtils]: Spent 5.58s on a formula simplification that was a NOOP. DAG size: 135 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-06 08:15:31,662 WARN L286 SmtUtils]: Spent 7.22s on a formula simplification that was a NOOP. DAG size: 138 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)