/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_17a-ps_add1_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 22:11:52,612 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 22:11:52,684 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 22:11:52,689 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 22:11:52,690 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 22:11:52,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 22:11:52,728 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 22:11:52,729 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 22:11:52,729 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 22:11:52,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 22:11:52,733 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 22:11:52,734 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 22:11:52,734 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 22:11:52,735 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 22:11:52,735 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 22:11:52,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 22:11:52,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 22:11:52,736 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 22:11:52,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 22:11:52,736 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 22:11:52,737 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 22:11:52,737 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 22:11:52,738 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 22:11:52,738 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 22:11:52,738 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 22:11:52,738 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 22:11:52,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 22:11:52,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:11:52,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 22:11:52,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 22:11:52,740 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 22:11:52,740 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 22:11:52,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 22:11:52,741 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 22:11:52,741 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 22:11:52,741 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-26 22:11:53,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 22:11:53,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 22:11:53,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 22:11:53,070 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 22:11:53,071 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 22:11:53,072 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_17a-ps_add1_nr.i [2023-08-26 22:11:54,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 22:11:54,434 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 22:11:54,435 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_17a-ps_add1_nr.i [2023-08-26 22:11:54,455 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc001967a/a5be6741586c4190b5798f1ae2cb245f/FLAGf93a869e8 [2023-08-26 22:11:54,469 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc001967a/a5be6741586c4190b5798f1ae2cb245f [2023-08-26 22:11:54,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 22:11:54,475 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 22:11:54,477 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 22:11:54,477 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 22:11:54,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 22:11:54,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:11:54" (1/1) ... [2023-08-26 22:11:54,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af61b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:54, skipping insertion in model container [2023-08-26 22:11:54,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:11:54" (1/1) ... [2023-08-26 22:11:54,534 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 22:11:54,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:11:54,898 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 22:11:54,909 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [121] [2023-08-26 22:11:54,923 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [483] [2023-08-26 22:11:54,924 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [483] [2023-08-26 22:11:54,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 22:11:54,990 INFO L206 MainTranslator]: Completed translation [2023-08-26 22:11:54,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:54 WrapperNode [2023-08-26 22:11:54,990 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 22:11:54,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 22:11:54,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 22:11:54,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 22:11:54,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:54" (1/1) ... [2023-08-26 22:11:55,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:54" (1/1) ... [2023-08-26 22:11:55,029 INFO L138 Inliner]: procedures = 266, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-08-26 22:11:55,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 22:11:55,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 22:11:55,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 22:11:55,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 22:11:55,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:54" (1/1) ... [2023-08-26 22:11:55,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:54" (1/1) ... [2023-08-26 22:11:55,040 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:54" (1/1) ... [2023-08-26 22:11:55,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:54" (1/1) ... [2023-08-26 22:11:55,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:54" (1/1) ... [2023-08-26 22:11:55,046 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:54" (1/1) ... [2023-08-26 22:11:55,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:54" (1/1) ... [2023-08-26 22:11:55,048 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:54" (1/1) ... [2023-08-26 22:11:55,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 22:11:55,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 22:11:55,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 22:11:55,051 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 22:11:55,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:54" (1/1) ... [2023-08-26 22:11:55,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 22:11:55,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 22:11:55,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 22:11:55,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 22:11:55,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 22:11:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 22:11:55,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 22:11:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 22:11:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 22:11:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 22:11:55,131 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 22:11:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 22:11:55,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 22:11:55,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 22:11:55,133 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 22:11:55,275 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 22:11:55,276 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 22:11:55,434 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 22:11:55,440 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 22:11:55,440 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 22:11:55,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:11:55 BoogieIcfgContainer [2023-08-26 22:11:55,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 22:11:55,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 22:11:55,444 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 22:11:55,446 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 22:11:55,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 10:11:54" (1/3) ... [2023-08-26 22:11:55,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8293f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:11:55, skipping insertion in model container [2023-08-26 22:11:55,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:11:54" (2/3) ... [2023-08-26 22:11:55,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b8293f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:11:55, skipping insertion in model container [2023-08-26 22:11:55,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:11:55" (3/3) ... [2023-08-26 22:11:55,449 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_17a-ps_add1_nr.i [2023-08-26 22:11:55,468 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 22:11:55,468 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-26 22:11:55,468 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 22:11:55,563 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 22:11:55,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 80 transitions, 165 flow [2023-08-26 22:11:55,652 INFO L124 PetriNetUnfolderBase]: 3/79 cut-off events. [2023-08-26 22:11:55,652 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:55,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 3/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-08-26 22:11:55,656 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 80 transitions, 165 flow [2023-08-26 22:11:55,662 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 79 transitions, 161 flow [2023-08-26 22:11:55,667 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 22:11:55,679 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 79 transitions, 161 flow [2023-08-26 22:11:55,682 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 79 transitions, 161 flow [2023-08-26 22:11:55,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 79 transitions, 161 flow [2023-08-26 22:11:55,713 INFO L124 PetriNetUnfolderBase]: 3/79 cut-off events. [2023-08-26 22:11:55,713 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:55,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 3/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2023-08-26 22:11:55,716 INFO L119 LiptonReduction]: Number of co-enabled transitions 1144 [2023-08-26 22:11:57,937 INFO L134 LiptonReduction]: Checked pairs total: 2189 [2023-08-26 22:11:57,938 INFO L136 LiptonReduction]: Total number of compositions: 90 [2023-08-26 22:11:57,949 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 22:11:57,955 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@1e90f704, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 22:11:57,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-08-26 22:11:57,957 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 22:11:57,957 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-26 22:11:57,957 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:57,958 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:57,958 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 22:11:57,959 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-26 22:11:57,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:57,963 INFO L85 PathProgramCache]: Analyzing trace with hash 299139, now seen corresponding path program 1 times [2023-08-26 22:11:57,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:57,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466280091] [2023-08-26 22:11:57,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:57,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 22:11:58,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 22:11:58,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 22:11:58,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466280091] [2023-08-26 22:11:58,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466280091] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 22:11:58,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 22:11:58,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-26 22:11:58,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104307319] [2023-08-26 22:11:58,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 22:11:58,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 22:11:58,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 22:11:58,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 22:11:58,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 22:11:58,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 170 [2023-08-26 22:11:58,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:11:58,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 22:11:58,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 170 [2023-08-26 22:11:58,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 22:11:58,259 INFO L124 PetriNetUnfolderBase]: 61/132 cut-off events. [2023-08-26 22:11:58,259 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 22:11:58,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 132 events. 61/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 503 event pairs, 54 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 260. Up to 132 conditions per place. [2023-08-26 22:11:58,274 INFO L140 encePairwiseOnDemand]: 166/170 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2023-08-26 22:11:58,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 18 transitions, 75 flow [2023-08-26 22:11:58,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 22:11:58,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 22:11:58,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2023-08-26 22:11:58,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4117647058823529 [2023-08-26 22:11:58,287 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 210 transitions. [2023-08-26 22:11:58,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 210 transitions. [2023-08-26 22:11:58,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 22:11:58,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 210 transitions. [2023-08-26 22:11:58,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:11:58,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:11:58,300 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 170.0) internal successors, (680), 4 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:11:58,301 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 45 flow. Second operand 3 states and 210 transitions. [2023-08-26 22:11:58,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 18 transitions, 75 flow [2023-08-26 22:11:58,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 22:11:58,305 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 40 flow [2023-08-26 22:11:58,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2023-08-26 22:11:58,309 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, -2 predicate places. [2023-08-26 22:11:58,310 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 40 flow [2023-08-26 22:11:58,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 22:11:58,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 22:11:58,310 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 22:11:58,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 22:11:58,311 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-08-26 22:11:58,311 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 22:11:58,311 INFO L85 PathProgramCache]: Analyzing trace with hash 299141, now seen corresponding path program 1 times [2023-08-26 22:11:58,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 22:11:58,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692892477] [2023-08-26 22:11:58,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 22:11:58,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 22:11:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 22:11:58,330 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 22:11:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 22:11:58,355 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 22:11:58,355 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 22:11:58,356 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2023-08-26 22:11:58,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2023-08-26 22:11:58,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2023-08-26 22:11:58,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2023-08-26 22:11:58,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2023-08-26 22:11:58,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2023-08-26 22:11:58,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2023-08-26 22:11:58,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2023-08-26 22:11:58,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2023-08-26 22:11:58,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2023-08-26 22:11:58,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2023-08-26 22:11:58,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2023-08-26 22:11:58,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2023-08-26 22:11:58,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 22:11:58,360 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-26 22:11:58,366 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 22:11:58,366 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 22:11:58,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 10:11:58 BasicIcfg [2023-08-26 22:11:58,381 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 22:11:58,382 INFO L158 Benchmark]: Toolchain (without parser) took 3906.74ms. Allocated memory was 381.7MB in the beginning and 501.2MB in the end (delta: 119.5MB). Free memory was 356.3MB in the beginning and 465.9MB in the end (delta: -109.7MB). Peak memory consumption was 10.4MB. Max. memory is 16.0GB. [2023-08-26 22:11:58,382 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 381.7MB. Free memory is still 357.9MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 22:11:58,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 513.55ms. Allocated memory is still 381.7MB. Free memory was 355.8MB in the beginning and 328.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-08-26 22:11:58,383 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.51ms. Allocated memory is still 381.7MB. Free memory was 328.5MB in the beginning and 326.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 22:11:58,383 INFO L158 Benchmark]: Boogie Preprocessor took 20.16ms. Allocated memory is still 381.7MB. Free memory was 326.4MB in the beginning and 324.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 22:11:58,384 INFO L158 Benchmark]: RCFGBuilder took 391.11ms. Allocated memory is still 381.7MB. Free memory was 324.8MB in the beginning and 311.3MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-26 22:11:58,384 INFO L158 Benchmark]: TraceAbstraction took 2937.25ms. Allocated memory was 381.7MB in the beginning and 501.2MB in the end (delta: 119.5MB). Free memory was 310.8MB in the beginning and 465.9MB in the end (delta: -155.2MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 22:11:58,386 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 381.7MB. Free memory is still 357.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 513.55ms. Allocated memory is still 381.7MB. Free memory was 355.8MB in the beginning and 328.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 38.51ms. Allocated memory is still 381.7MB. Free memory was 328.5MB in the beginning and 326.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 20.16ms. Allocated memory is still 381.7MB. Free memory was 326.4MB in the beginning and 324.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 391.11ms. Allocated memory is still 381.7MB. Free memory was 324.8MB in the beginning and 311.3MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2937.25ms. Allocated memory was 381.7MB in the beginning and 501.2MB in the end (delta: 119.5MB). Free memory was 310.8MB in the beginning and 465.9MB in the end (delta: -155.2MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 121]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [121] - GenericResultAtLocation [Line: 483]: Unsoundness Warning unspecified type, defaulting to int C: short [483] - GenericResultAtLocation [Line: 483]: Unsoundness Warning unspecified type, defaulting to int C: short [483] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 80 PlacesBefore, 24 PlacesAfterwards, 79 TransitionsBefore, 21 TransitionsAfterwards, 1144 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 90 TotalNumberOfCompositions, 2189 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1281, independent: 1191, independent conditional: 0, independent unconditional: 1191, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 668, independent: 643, independent conditional: 0, independent unconditional: 643, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1281, independent: 548, independent conditional: 0, independent unconditional: 548, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 668, unknown conditional: 0, unknown unconditional: 668] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 944]: integer overflow possible integer overflow possible We found a FailurePath: [L928] 0 int glob; [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L937] 0 int i = __VERIFIER_nondet_int(); [L938] 0 pthread_t id; [L939] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, i=2147483647, id={2:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L941] COND TRUE 0 \read(i) [L944] 0 i++ VAL [arg={0:0}, glob=0, i++=2147483647, i=2147483647, id={2:0}, m={1:0}] - UnprovableResult [Line: 944]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 945]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 945]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 93 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 proved your program to be incorrect! [2023-08-26 22:11:58,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...