/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-24.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 16:04:46,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 16:04:46,711 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 16:04:46,714 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 16:04:46,715 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 16:04:46,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 16:04:46,734 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 16:04:46,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 16:04:46,735 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 16:04:46,738 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 16:04:46,739 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 16:04:46,740 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 16:04:46,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 16:04:46,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 16:04:46,742 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 16:04:46,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 16:04:46,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 16:04:46,743 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 16:04:46,743 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 16:04:46,743 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 16:04:46,743 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 16:04:46,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 16:04:46,744 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 16:04:46,744 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 16:04:46,744 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 16:04:46,744 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 16:04:46,745 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 16:04:46,745 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 16:04:46,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 16:04:46,745 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 16:04:46,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 16:04:46,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 16:04:46,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 16:04:46,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 16:04:46,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 16:04:46,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 16:04:46,747 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 16:04:46,747 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 16:04:46,747 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 16:04:46,747 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 16:04:46,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 16:04:46,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 16:04:46,748 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 16:04:46,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 16:04:46,749 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 16:04:46,749 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 16:04:46,749 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 16:04:46,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 16:04:47,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 16:04:47,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 16:04:47,005 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 16:04:47,005 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 16:04:47,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-24.i [2023-12-16 16:04:48,145 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 16:04:48,350 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 16:04:48,350 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-24.i [2023-12-16 16:04:48,360 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d2756276/d9be99fd2e6f48e193527537f2721f2b/FLAGa7296a494 [2023-12-16 16:04:48,371 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d2756276/d9be99fd2e6f48e193527537f2721f2b [2023-12-16 16:04:48,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 16:04:48,374 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 16:04:48,375 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 16:04:48,376 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 16:04:48,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 16:04:48,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:04:48" (1/1) ... [2023-12-16 16:04:48,387 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@793a916d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:48, skipping insertion in model container [2023-12-16 16:04:48,387 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:04:48" (1/1) ... [2023-12-16 16:04:48,425 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 16:04:48,559 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-24.i[917,930] [2023-12-16 16:04:48,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 16:04:48,625 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 16:04:48,637 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-24.i[917,930] [2023-12-16 16:04:48,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 16:04:48,698 INFO L206 MainTranslator]: Completed translation [2023-12-16 16:04:48,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:48 WrapperNode [2023-12-16 16:04:48,699 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 16:04:48,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 16:04:48,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 16:04:48,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 16:04:48,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:48" (1/1) ... [2023-12-16 16:04:48,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:48" (1/1) ... [2023-12-16 16:04:48,755 INFO L138 Inliner]: procedures = 33, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 466 [2023-12-16 16:04:48,755 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 16:04:48,756 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 16:04:48,756 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 16:04:48,756 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 16:04:48,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:48" (1/1) ... [2023-12-16 16:04:48,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:48" (1/1) ... [2023-12-16 16:04:48,774 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:48" (1/1) ... [2023-12-16 16:04:48,799 INFO L175 MemorySlicer]: Split 126 memory accesses to 2 slices as follows [2, 124]. 98 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 14]. The 17 writes are split as follows [0, 17]. [2023-12-16 16:04:48,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:48" (1/1) ... [2023-12-16 16:04:48,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:48" (1/1) ... [2023-12-16 16:04:48,825 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:48" (1/1) ... [2023-12-16 16:04:48,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:48" (1/1) ... [2023-12-16 16:04:48,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:48" (1/1) ... [2023-12-16 16:04:48,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:48" (1/1) ... [2023-12-16 16:04:48,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 16:04:48,851 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 16:04:48,851 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 16:04:48,851 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 16:04:48,852 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:48" (1/1) ... [2023-12-16 16:04:48,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 16:04:48,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 16:04:48,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 16:04:48,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 16:04:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 16:04:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-12-16 16:04:48,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-12-16 16:04:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#0 [2023-12-16 16:04:48,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2#1 [2023-12-16 16:04:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 16:04:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 16:04:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-12-16 16:04:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-12-16 16:04:48,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2023-12-16 16:04:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2023-12-16 16:04:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-12-16 16:04:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-12-16 16:04:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2023-12-16 16:04:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2023-12-16 16:04:48,932 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 16:04:48,932 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 16:04:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 16:04:48,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 16:04:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2023-12-16 16:04:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2023-12-16 16:04:48,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2023-12-16 16:04:48,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2023-12-16 16:04:49,084 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 16:04:49,086 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 16:05:08,596 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 16:05:08,653 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 16:05:08,653 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 16:05:08,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:05:08 BoogieIcfgContainer [2023-12-16 16:05:08,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 16:05:08,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 16:05:08,667 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 16:05:08,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 16:05:08,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:04:48" (1/3) ... [2023-12-16 16:05:08,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ff9819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:05:08, skipping insertion in model container [2023-12-16 16:05:08,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:04:48" (2/3) ... [2023-12-16 16:05:08,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ff9819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:05:08, skipping insertion in model container [2023-12-16 16:05:08,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:05:08" (3/3) ... [2023-12-16 16:05:08,673 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-24.i [2023-12-16 16:05:08,687 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 16:05:08,688 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 16:05:08,740 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 16:05:08,748 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@73d41c4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 16:05:08,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 16:05:08,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 76 states have (on average 1.4342105263157894) internal successors, (109), 77 states have internal predecessors, (109), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 16:05:08,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 16:05:08,772 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:05:08,773 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:05:08,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:05:08,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:05:08,779 INFO L85 PathProgramCache]: Analyzing trace with hash -230866532, now seen corresponding path program 1 times [2023-12-16 16:05:08,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:05:08,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060089170] [2023-12-16 16:05:08,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:05:08,792 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:05:08,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:05:08,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:05:08,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 16:05:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:05:09,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 16:05:09,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:05:09,940 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-12-16 16:05:09,940 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:05:09,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:05:09,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060089170] [2023-12-16 16:05:09,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060089170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:05:09,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:05:09,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 16:05:09,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159721490] [2023-12-16 16:05:09,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:05:09,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 16:05:09,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:05:09,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 16:05:09,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 16:05:09,976 INFO L87 Difference]: Start difference. First operand has 94 states, 76 states have (on average 1.4342105263157894) internal successors, (109), 77 states have internal predecessors, (109), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 16:05:10,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:05:10,085 INFO L93 Difference]: Finished difference Result 185 states and 291 transitions. [2023-12-16 16:05:10,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 16:05:10,088 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 119 [2023-12-16 16:05:10,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:05:10,094 INFO L225 Difference]: With dead ends: 185 [2023-12-16 16:05:10,095 INFO L226 Difference]: Without dead ends: 92 [2023-12-16 16:05:10,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 16:05:10,101 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 16:05:10,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 16:05:10,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-12-16 16:05:10,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2023-12-16 16:05:10,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 75 states have (on average 1.3866666666666667) internal successors, (104), 75 states have internal predecessors, (104), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 16:05:10,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 134 transitions. [2023-12-16 16:05:10,148 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 134 transitions. Word has length 119 [2023-12-16 16:05:10,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:05:10,148 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 134 transitions. [2023-12-16 16:05:10,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 16:05:10,148 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 134 transitions. [2023-12-16 16:05:10,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 16:05:10,151 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:05:10,151 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:05:10,180 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 (2)] Ended with exit code 0 [2023-12-16 16:05:10,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:05:10,373 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:05:10,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:05:10,373 INFO L85 PathProgramCache]: Analyzing trace with hash -138391050, now seen corresponding path program 1 times [2023-12-16 16:05:10,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:05:10,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179570444] [2023-12-16 16:05:10,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:05:10,374 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:05:10,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:05:10,376 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:05:10,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 16:05:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:05:11,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 16:05:11,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:05:11,612 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 16:05:11,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:05:11,612 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:05:11,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [179570444] [2023-12-16 16:05:11,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [179570444] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:05:11,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:05:11,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 16:05:11,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403147554] [2023-12-16 16:05:11,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:05:11,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 16:05:11,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:05:11,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 16:05:11,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 16:05:11,616 INFO L87 Difference]: Start difference. First operand 92 states and 134 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 16:05:11,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:05:11,915 INFO L93 Difference]: Finished difference Result 184 states and 269 transitions. [2023-12-16 16:05:11,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 16:05:11,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2023-12-16 16:05:11,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:05:11,918 INFO L225 Difference]: With dead ends: 184 [2023-12-16 16:05:11,918 INFO L226 Difference]: Without dead ends: 93 [2023-12-16 16:05:11,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 16:05:11,920 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 16:05:11,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 253 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 16:05:11,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-12-16 16:05:11,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-12-16 16:05:11,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 76 states have (on average 1.381578947368421) internal successors, (105), 76 states have internal predecessors, (105), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 16:05:11,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2023-12-16 16:05:11,932 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 119 [2023-12-16 16:05:11,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:05:11,933 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2023-12-16 16:05:11,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 16:05:11,934 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2023-12-16 16:05:11,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 16:05:11,936 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:05:11,936 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:05:11,967 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 [2023-12-16 16:05:12,163 WARN L477 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 [2023-12-16 16:05:12,163 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:05:12,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:05:12,164 INFO L85 PathProgramCache]: Analyzing trace with hash 80463668, now seen corresponding path program 1 times [2023-12-16 16:05:12,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:05:12,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103186579] [2023-12-16 16:05:12,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:05:12,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:05:12,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:05:12,172 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) [2023-12-16 16:05:12,177 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 [2023-12-16 16:05:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:05:13,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 16:05:13,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:05:13,450 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 16:05:13,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:05:13,451 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:05:13,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103186579] [2023-12-16 16:05:13,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103186579] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:05:13,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:05:13,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 16:05:13,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904060091] [2023-12-16 16:05:13,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:05:13,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 16:05:13,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:05:13,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 16:05:13,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 16:05:13,454 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 16:05:13,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:05:13,750 INFO L93 Difference]: Finished difference Result 205 states and 299 transitions. [2023-12-16 16:05:13,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 16:05:13,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2023-12-16 16:05:13,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:05:13,754 INFO L225 Difference]: With dead ends: 205 [2023-12-16 16:05:13,754 INFO L226 Difference]: Without dead ends: 113 [2023-12-16 16:05:13,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 16:05:13,756 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 40 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 16:05:13,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 269 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 16:05:13,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-16 16:05:13,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 94. [2023-12-16 16:05:13,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 77 states have internal predecessors, (106), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 16:05:13,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 136 transitions. [2023-12-16 16:05:13,771 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 136 transitions. Word has length 119 [2023-12-16 16:05:13,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:05:13,771 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 136 transitions. [2023-12-16 16:05:13,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 16:05:13,772 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 136 transitions. [2023-12-16 16:05:13,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 16:05:13,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:05:13,774 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:05:13,797 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 (4)] Forceful destruction successful, exit code 0 [2023-12-16 16:05:13,980 WARN L477 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 [2023-12-16 16:05:13,981 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:05:13,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:05:13,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1199400010, now seen corresponding path program 1 times [2023-12-16 16:05:13,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:05:13,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648030581] [2023-12-16 16:05:13,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:05:13,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:05:13,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:05:13,984 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:05:14,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 16:05:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:05:15,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 16:05:15,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:05:15,540 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 16:05:15,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:05:15,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:05:15,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648030581] [2023-12-16 16:05:15,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648030581] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:05:15,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:05:15,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 16:05:15,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113657924] [2023-12-16 16:05:15,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:05:15,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 16:05:15,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:05:15,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 16:05:15,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 16:05:15,546 INFO L87 Difference]: Start difference. First operand 94 states and 136 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 16:05:16,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:05:16,725 INFO L93 Difference]: Finished difference Result 208 states and 301 transitions. [2023-12-16 16:05:16,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 16:05:16,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2023-12-16 16:05:16,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:05:16,728 INFO L225 Difference]: With dead ends: 208 [2023-12-16 16:05:16,728 INFO L226 Difference]: Without dead ends: 115 [2023-12-16 16:05:16,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 16:05:16,730 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 16:05:16,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 498 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 16:05:16,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-16 16:05:16,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 98. [2023-12-16 16:05:16,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 81 states have (on average 1.3580246913580247) internal successors, (110), 81 states have internal predecessors, (110), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 16:05:16,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 140 transitions. [2023-12-16 16:05:16,737 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 140 transitions. Word has length 119 [2023-12-16 16:05:16,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:05:16,738 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 140 transitions. [2023-12-16 16:05:16,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 16:05:16,738 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 140 transitions. [2023-12-16 16:05:16,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 16:05:16,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:05:16,740 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:05:16,766 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 (5)] Forceful destruction successful, exit code 0 [2023-12-16 16:05:16,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:05:16,952 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:05:16,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:05:16,953 INFO L85 PathProgramCache]: Analyzing trace with hash -2008746636, now seen corresponding path program 1 times [2023-12-16 16:05:16,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:05:16,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344615629] [2023-12-16 16:05:16,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:05:16,954 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:05:16,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:05:16,955 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:05:16,958 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 (6)] Waiting until timeout for monitored process [2023-12-16 16:05:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:05:18,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 16:05:18,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:05:18,660 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 16:05:18,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:05:18,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:05:18,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [344615629] [2023-12-16 16:05:18,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [344615629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:05:18,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:05:18,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 16:05:18,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173750330] [2023-12-16 16:05:18,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:05:18,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 16:05:18,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:05:18,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 16:05:18,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 16:05:18,662 INFO L87 Difference]: Start difference. First operand 98 states and 140 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 16:05:20,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:05:20,618 INFO L93 Difference]: Finished difference Result 215 states and 306 transitions. [2023-12-16 16:05:20,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 16:05:20,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2023-12-16 16:05:20,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:05:20,622 INFO L225 Difference]: With dead ends: 215 [2023-12-16 16:05:20,622 INFO L226 Difference]: Without dead ends: 118 [2023-12-16 16:05:20,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-16 16:05:20,624 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 49 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 16:05:20,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 616 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 16:05:20,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-16 16:05:20,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2023-12-16 16:05:20,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 83 states have (on average 1.3493975903614457) internal successors, (112), 83 states have internal predecessors, (112), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 16:05:20,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 142 transitions. [2023-12-16 16:05:20,631 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 142 transitions. Word has length 119 [2023-12-16 16:05:20,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:05:20,632 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 142 transitions. [2023-12-16 16:05:20,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 16:05:20,632 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 142 transitions. [2023-12-16 16:05:20,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 16:05:20,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:05:20,634 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:05:20,662 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 (6)] Forceful destruction successful, exit code 0 [2023-12-16 16:05:20,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:05:20,849 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:05:20,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:05:20,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1951488334, now seen corresponding path program 1 times [2023-12-16 16:05:20,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:05:20,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412813767] [2023-12-16 16:05:20,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:05:20,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:05:20,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:05:20,851 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:05:20,851 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 (7)] Waiting until timeout for monitored process [2023-12-16 16:05:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:05:21,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 16:05:21,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:05:22,746 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 16:05:22,746 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 16:05:22,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 16:05:22,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412813767] [2023-12-16 16:05:22,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412813767] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 16:05:22,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 16:05:22,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 16:05:22,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151797911] [2023-12-16 16:05:22,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 16:05:22,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 16:05:22,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 16:05:22,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 16:05:22,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 16:05:22,748 INFO L87 Difference]: Start difference. First operand 100 states and 142 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 16:05:25,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 16:05:25,363 INFO L93 Difference]: Finished difference Result 218 states and 306 transitions. [2023-12-16 16:05:25,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 16:05:25,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 119 [2023-12-16 16:05:25,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 16:05:25,367 INFO L225 Difference]: With dead ends: 218 [2023-12-16 16:05:25,367 INFO L226 Difference]: Without dead ends: 119 [2023-12-16 16:05:25,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-12-16 16:05:25,371 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 40 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 16:05:25,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 728 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 16:05:25,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-16 16:05:25,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 102. [2023-12-16 16:05:25,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 85 states have (on average 1.3411764705882352) internal successors, (114), 85 states have internal predecessors, (114), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 16:05:25,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2023-12-16 16:05:25,378 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 144 transitions. Word has length 119 [2023-12-16 16:05:25,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 16:05:25,379 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 144 transitions. [2023-12-16 16:05:25,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 16:05:25,379 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 144 transitions. [2023-12-16 16:05:25,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 16:05:25,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 16:05:25,384 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:05:25,405 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 (7)] Forceful destruction successful, exit code 0 [2023-12-16 16:05:25,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:05:25,585 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 16:05:25,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 16:05:25,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1951428752, now seen corresponding path program 1 times [2023-12-16 16:05:25,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 16:05:25,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1548430334] [2023-12-16 16:05:25,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 16:05:25,586 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 16:05:25,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 16:05:25,587 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 16:05:25,588 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 (8)] Waiting until timeout for monitored process [2023-12-16 16:05:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 16:05:27,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 16:05:27,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 16:05:39,994 WARN L293 SmtUtils]: Spent 8.61s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-16 16:05:47,977 WARN L293 SmtUtils]: Spent 7.98s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-16 16:05:57,097 WARN L293 SmtUtils]: Spent 9.12s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-16 16:06:01,256 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (let ((.cse2 (select (select |c_#memory_int#1| c_~WrapperStruct00_var_1_17_Pointer~0.base) c_~WrapperStruct00_var_1_17_Pointer~0.offset))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))) (let ((.cse0 (fp.mul c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 511.0 4.0))))) (and (= |c_ULTIMATE.start_step_#t~ite34#1| .cse0) (fp.gt .cse0 (fp.div c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 17.0 5.0)))) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false Received shutdown request... [2023-12-16 16:06:03,149 WARN L340 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 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 16:06:03,150 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 16:06:04,184 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 (8)] Forceful destruction successful, exit code 0 [2023-12-16 16:06:04,351 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 16:06:04,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-16 16:06:04,438 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 16:06:04,438 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 120 with TraceHistMax 15,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-16 16:06:04,441 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-16 16:06:04,443 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 16:06:04,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:06:04 BoogieIcfgContainer [2023-12-16 16:06:04,445 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 16:06:04,445 INFO L158 Benchmark]: Toolchain (without parser) took 76070.66ms. Allocated memory is still 293.6MB. Free memory was 242.9MB in the beginning and 134.5MB in the end (delta: 108.4MB). Peak memory consumption was 109.3MB. Max. memory is 8.0GB. [2023-12-16 16:06:04,445 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 181.4MB. Free memory was 130.4MB in the beginning and 130.3MB in the end (delta: 66.5kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 16:06:04,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.90ms. Allocated memory is still 293.6MB. Free memory was 242.9MB in the beginning and 226.7MB in the end (delta: 16.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 16:06:04,446 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.54ms. Allocated memory is still 293.6MB. Free memory was 226.1MB in the beginning and 223.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 16:06:04,446 INFO L158 Benchmark]: Boogie Preprocessor took 93.94ms. Allocated memory is still 293.6MB. Free memory was 223.0MB in the beginning and 218.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 16:06:04,446 INFO L158 Benchmark]: RCFGBuilder took 19803.15ms. Allocated memory is still 293.6MB. Free memory was 218.3MB in the beginning and 249.0MB in the end (delta: -30.7MB). Peak memory consumption was 33.8MB. Max. memory is 8.0GB. [2023-12-16 16:06:04,447 INFO L158 Benchmark]: TraceAbstraction took 55789.03ms. Allocated memory is still 293.6MB. Free memory was 247.9MB in the beginning and 134.5MB in the end (delta: 113.4MB). Peak memory consumption was 113.2MB. Max. memory is 8.0GB. [2023-12-16 16:06:04,449 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 181.4MB. Free memory was 130.4MB in the beginning and 130.3MB in the end (delta: 66.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 323.90ms. Allocated memory is still 293.6MB. Free memory was 242.9MB in the beginning and 226.7MB in the end (delta: 16.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.54ms. Allocated memory is still 293.6MB. Free memory was 226.1MB in the beginning and 223.0MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 93.94ms. Allocated memory is still 293.6MB. Free memory was 223.0MB in the beginning and 218.3MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 19803.15ms. Allocated memory is still 293.6MB. Free memory was 218.3MB in the beginning and 249.0MB in the end (delta: -30.7MB). Peak memory consumption was 33.8MB. Max. memory is 8.0GB. * TraceAbstraction took 55789.03ms. Allocated memory is still 293.6MB. Free memory was 247.9MB in the beginning and 134.5MB in the end (delta: 113.4MB). Peak memory consumption was 113.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 120 with TraceHistMax 15,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.7s, OverallIterations: 7, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 175 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 175 mSDsluCounter, 2494 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1709 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 213 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 785 mSDtfsCounter, 213 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 727 GetRequests, 694 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred in iteration=6, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 71 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 5.7s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 714 NumberOfCodeBlocks, 714 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 708 ConstructedInterpolants, 0 QuantifiedInterpolants, 726 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1631 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 2520/2520 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown