/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 --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 06:01:27,612 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 06:01:27,675 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 06:01:27,678 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 06:01:27,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 06:01:27,701 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 06:01:27,702 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 06:01:27,702 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 06:01:27,703 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 06:01:27,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 06:01:27,709 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 06:01:27,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 06:01:27,709 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 06:01:27,710 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 06:01:27,710 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 06:01:27,710 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 06:01:27,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 06:01:27,711 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 06:01:27,711 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 06:01:27,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 06:01:27,711 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 06:01:27,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 06:01:27,712 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 06:01:27,712 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 06:01:27,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 06:01:27,713 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 06:01:27,713 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 06:01:27,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:01:27,713 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 06:01:27,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 06:01:27,714 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 06:01:27,714 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 06:01:27,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 06:01:27,714 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 06:01:27,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 06:01:27,714 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 06:01:27,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 06:01:27,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 06:01:27,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 06:01:27,958 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 06:01:27,958 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 06:01:27,959 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2023-08-26 06:01:28,897 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 06:01:29,143 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 06:01:29,143 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2023-08-26 06:01:29,164 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4804567a7/6bada062af6b40e5a6462d1a60464b2f/FLAG3ccc2c920 [2023-08-26 06:01:29,174 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4804567a7/6bada062af6b40e5a6462d1a60464b2f [2023-08-26 06:01:29,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 06:01:29,178 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 06:01:29,180 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 06:01:29,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 06:01:29,182 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 06:01:29,183 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:01:29" (1/1) ... [2023-08-26 06:01:29,184 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1540a43d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:29, skipping insertion in model container [2023-08-26 06:01:29,184 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:01:29" (1/1) ... [2023-08-26 06:01:29,220 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 06:01:29,698 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:01:29,710 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 06:01:29,719 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-26 06:01:29,720 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [237] [2023-08-26 06:01:29,729 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [729] [2023-08-26 06:01:29,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:01:29,849 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 06:01:29,849 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 06:01:29,854 INFO L206 MainTranslator]: Completed translation [2023-08-26 06:01:29,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:29 WrapperNode [2023-08-26 06:01:29,854 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 06:01:29,855 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 06:01:29,855 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 06:01:29,855 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 06:01:29,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:29" (1/1) ... [2023-08-26 06:01:29,887 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:29" (1/1) ... [2023-08-26 06:01:29,908 INFO L138 Inliner]: procedures = 482, calls = 34, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 131 [2023-08-26 06:01:29,912 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 06:01:29,913 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 06:01:29,913 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 06:01:29,913 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 06:01:29,918 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:29" (1/1) ... [2023-08-26 06:01:29,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:29" (1/1) ... [2023-08-26 06:01:29,921 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:29" (1/1) ... [2023-08-26 06:01:29,921 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:29" (1/1) ... [2023-08-26 06:01:29,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:29" (1/1) ... [2023-08-26 06:01:29,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:29" (1/1) ... [2023-08-26 06:01:29,945 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:29" (1/1) ... [2023-08-26 06:01:29,947 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:29" (1/1) ... [2023-08-26 06:01:29,950 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 06:01:29,950 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 06:01:29,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 06:01:29,950 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 06:01:29,951 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:29" (1/1) ... [2023-08-26 06:01:29,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:01:29,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:01:29,976 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 06:01:29,996 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 06:01:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 06:01:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 06:01:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 06:01:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 06:01:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 06:01:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 06:01:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 06:01:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 06:01:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 06:01:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 06:01:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 06:01:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 06:01:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 06:01:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 06:01:30,001 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 06:01:30,220 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 06:01:30,221 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 06:01:30,362 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 06:01:30,408 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 06:01:30,408 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 06:01:30,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:01:30 BoogieIcfgContainer [2023-08-26 06:01:30,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 06:01:30,412 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 06:01:30,412 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 06:01:30,414 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 06:01:30,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 06:01:29" (1/3) ... [2023-08-26 06:01:30,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a1ee63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:01:30, skipping insertion in model container [2023-08-26 06:01:30,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:01:29" (2/3) ... [2023-08-26 06:01:30,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a1ee63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:01:30, skipping insertion in model container [2023-08-26 06:01:30,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:01:30" (3/3) ... [2023-08-26 06:01:30,416 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2023-08-26 06:01:30,427 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 06:01:30,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-08-26 06:01:30,428 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 06:01:30,465 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-26 06:01:30,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 140 transitions, 288 flow [2023-08-26 06:01:30,520 INFO L124 PetriNetUnfolderBase]: 7/162 cut-off events. [2023-08-26 06:01:30,520 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 06:01:30,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 162 events. 7/162 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 245 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 98. Up to 3 conditions per place. [2023-08-26 06:01:30,522 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 140 transitions, 288 flow [2023-08-26 06:01:30,525 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 130 transitions, 266 flow [2023-08-26 06:01:30,527 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 06:01:30,533 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 130 transitions, 266 flow [2023-08-26 06:01:30,534 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 130 transitions, 266 flow [2023-08-26 06:01:30,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 130 transitions, 266 flow [2023-08-26 06:01:30,551 INFO L124 PetriNetUnfolderBase]: 4/153 cut-off events. [2023-08-26 06:01:30,551 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 06:01:30,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 153 events. 4/153 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 229 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 98. Up to 2 conditions per place. [2023-08-26 06:01:30,553 INFO L119 LiptonReduction]: Number of co-enabled transitions 416 [2023-08-26 06:01:34,252 INFO L134 LiptonReduction]: Checked pairs total: 597 [2023-08-26 06:01:34,252 INFO L136 LiptonReduction]: Total number of compositions: 170 [2023-08-26 06:01:34,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 06:01:34,265 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;@2d2f63bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 06:01:34,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-08-26 06:01:34,266 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 06:01:34,266 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 06:01:34,266 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:01:34,266 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:01:34,267 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 06:01:34,267 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-26 06:01:34,270 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:01:34,270 INFO L85 PathProgramCache]: Analyzing trace with hash 580, now seen corresponding path program 1 times [2023-08-26 06:01:34,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:01:34,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941890311] [2023-08-26 06:01:34,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:01:34,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:01:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:01:34,433 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 06:01:34,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:01:34,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941890311] [2023-08-26 06:01:34,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941890311] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:01:34,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:01:34,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 06:01:34,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155417666] [2023-08-26 06:01:34,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:01:34,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 06:01:34,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:01:34,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 06:01:34,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 06:01:34,456 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 310 [2023-08-26 06:01:34,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 52 flow. Second operand has 2 states, 2 states have (on average 122.5) internal successors, (245), 2 states have internal predecessors, (245), 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 06:01:34,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:01:34,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 310 [2023-08-26 06:01:34,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:01:34,500 INFO L124 PetriNetUnfolderBase]: 5/24 cut-off events. [2023-08-26 06:01:34,500 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-26 06:01:34,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 24 events. 5/24 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 51 event pairs, 5 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 32. Up to 25 conditions per place. [2023-08-26 06:01:34,501 INFO L140 encePairwiseOnDemand]: 297/310 looper letters, 7 selfloop transitions, 0 changer transitions 3/10 dead transitions. [2023-08-26 06:01:34,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 14 places, 10 transitions, 46 flow [2023-08-26 06:01:34,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 06:01:34,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 06:01:34,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 267 transitions. [2023-08-26 06:01:34,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4306451612903226 [2023-08-26 06:01:34,510 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 267 transitions. [2023-08-26 06:01:34,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 267 transitions. [2023-08-26 06:01:34,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:01:34,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 267 transitions. [2023-08-26 06:01:34,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 133.5) internal successors, (267), 2 states have internal predecessors, (267), 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 06:01:34,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 310.0) internal successors, (930), 3 states have internal predecessors, (930), 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 06:01:34,517 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 310.0) internal successors, (930), 3 states have internal predecessors, (930), 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 06:01:34,518 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 52 flow. Second operand 2 states and 267 transitions. [2023-08-26 06:01:34,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 14 places, 10 transitions, 46 flow [2023-08-26 06:01:34,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 10 transitions, 42 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 06:01:34,520 INFO L231 Difference]: Finished difference. Result has 12 places, 7 transitions, 15 flow [2023-08-26 06:01:34,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=310, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=15, PETRI_PLACES=12, PETRI_TRANSITIONS=7} [2023-08-26 06:01:34,524 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -14 predicate places. [2023-08-26 06:01:34,524 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 7 transitions, 15 flow [2023-08-26 06:01:34,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 122.5) internal successors, (245), 2 states have internal predecessors, (245), 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 06:01:34,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:01:34,524 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-26 06:01:34,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 06:01:34,525 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-26 06:01:34,525 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:01:34,525 INFO L85 PathProgramCache]: Analyzing trace with hash 582128, now seen corresponding path program 1 times [2023-08-26 06:01:34,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:01:34,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560360144] [2023-08-26 06:01:34,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:01:34,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:01:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:01:34,672 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 06:01:34,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:01:34,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560360144] [2023-08-26 06:01:34,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560360144] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:01:34,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:01:34,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:01:34,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623673012] [2023-08-26 06:01:34,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:01:34,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:01:34,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:01:34,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:01:34,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:01:34,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 310 [2023-08-26 06:01:34,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 7 transitions, 15 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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 06:01:34,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:01:34,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 310 [2023-08-26 06:01:34,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:01:34,689 INFO L124 PetriNetUnfolderBase]: 3/13 cut-off events. [2023-08-26 06:01:34,689 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:01:34,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 13 events. 3/13 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 3 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 27. Up to 13 conditions per place. [2023-08-26 06:01:34,690 INFO L140 encePairwiseOnDemand]: 308/310 looper letters, 6 selfloop transitions, 0 changer transitions 1/7 dead transitions. [2023-08-26 06:01:34,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 11 places, 7 transitions, 29 flow [2023-08-26 06:01:34,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:01:34,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:01:34,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2023-08-26 06:01:34,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3795698924731183 [2023-08-26 06:01:34,692 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2023-08-26 06:01:34,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2023-08-26 06:01:34,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:01:34,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2023-08-26 06:01:34,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 06:01:34,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 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 06:01:34,695 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 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 06:01:34,695 INFO L175 Difference]: Start difference. First operand has 12 places, 7 transitions, 15 flow. Second operand 3 states and 353 transitions. [2023-08-26 06:01:34,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 11 places, 7 transitions, 29 flow [2023-08-26 06:01:34,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 11 places, 7 transitions, 29 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:01:34,696 INFO L231 Difference]: Finished difference. Result has 12 places, 6 transitions, 15 flow [2023-08-26 06:01:34,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=310, PETRI_DIFFERENCE_MINUEND_FLOW=15, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=15, PETRI_PLACES=12, PETRI_TRANSITIONS=6} [2023-08-26 06:01:34,696 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -14 predicate places. [2023-08-26 06:01:34,696 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 6 transitions, 15 flow [2023-08-26 06:01:34,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 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 06:01:34,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:01:34,697 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 06:01:34,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 06:01:34,697 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-26 06:01:34,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:01:34,698 INFO L85 PathProgramCache]: Analyzing trace with hash 554117167, now seen corresponding path program 1 times [2023-08-26 06:01:34,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:01:34,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659176899] [2023-08-26 06:01:34,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:01:34,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:01:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:01:34,766 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 06:01:34,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:01:34,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659176899] [2023-08-26 06:01:34,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659176899] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:01:34,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:01:34,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:01:34,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197090501] [2023-08-26 06:01:34,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:01:34,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:01:34,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:01:34,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:01:34,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:01:34,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 310 [2023-08-26 06:01:34,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 6 transitions, 15 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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 06:01:34,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:01:34,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 310 [2023-08-26 06:01:34,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:01:34,782 INFO L124 PetriNetUnfolderBase]: 1/10 cut-off events. [2023-08-26 06:01:34,782 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:01:34,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 10 events. 1/10 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 1 based on Foata normal form. 2/12 useless extension candidates. Maximal degree in co-relation 23. Up to 9 conditions per place. [2023-08-26 06:01:34,782 INFO L140 encePairwiseOnDemand]: 307/310 looper letters, 4 selfloop transitions, 2 changer transitions 1/7 dead transitions. [2023-08-26 06:01:34,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 7 transitions, 31 flow [2023-08-26 06:01:34,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:01:34,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:01:34,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 353 transitions. [2023-08-26 06:01:34,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3795698924731183 [2023-08-26 06:01:34,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 353 transitions. [2023-08-26 06:01:34,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 353 transitions. [2023-08-26 06:01:34,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:01:34,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 353 transitions. [2023-08-26 06:01:34,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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 06:01:34,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 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 06:01:34,787 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 310.0) internal successors, (1240), 4 states have internal predecessors, (1240), 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 06:01:34,787 INFO L175 Difference]: Start difference. First operand has 12 places, 6 transitions, 15 flow. Second operand 3 states and 353 transitions. [2023-08-26 06:01:34,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 7 transitions, 31 flow [2023-08-26 06:01:34,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 7 transitions, 29 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-26 06:01:34,787 INFO L231 Difference]: Finished difference. Result has 13 places, 6 transitions, 21 flow [2023-08-26 06:01:34,788 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=310, PETRI_DIFFERENCE_MINUEND_FLOW=13, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=21, PETRI_PLACES=13, PETRI_TRANSITIONS=6} [2023-08-26 06:01:34,788 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -13 predicate places. [2023-08-26 06:01:34,788 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 6 transitions, 21 flow [2023-08-26 06:01:34,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 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 06:01:34,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:01:34,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 06:01:34,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 06:01:34,789 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-08-26 06:01:34,789 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:01:34,789 INFO L85 PathProgramCache]: Analyzing trace with hash -2229309, now seen corresponding path program 1 times [2023-08-26 06:01:34,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:01:34,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807444100] [2023-08-26 06:01:34,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:01:34,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:01:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:01:34,815 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 06:01:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:01:34,842 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 06:01:34,843 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 06:01:34,843 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONASSERT (15 of 16 remaining) [2023-08-26 06:01:34,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2023-08-26 06:01:34,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2023-08-26 06:01:34,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2023-08-26 06:01:34,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONASSERT (11 of 16 remaining) [2023-08-26 06:01:34,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2023-08-26 06:01:34,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2023-08-26 06:01:34,845 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2023-08-26 06:01:34,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (7 of 16 remaining) [2023-08-26 06:01:34,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2023-08-26 06:01:34,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2023-08-26 06:01:34,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2023-08-26 06:01:34,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2023-08-26 06:01:34,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONASSERT (2 of 16 remaining) [2023-08-26 06:01:34,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2023-08-26 06:01:34,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2023-08-26 06:01:34,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 06:01:34,850 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-26 06:01:34,854 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 06:01:34,854 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 06:01:34,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 06:01:34 BasicIcfg [2023-08-26 06:01:34,874 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 06:01:34,875 INFO L158 Benchmark]: Toolchain (without parser) took 5696.56ms. Allocated memory was 356.5MB in the beginning and 461.4MB in the end (delta: 104.9MB). Free memory was 330.4MB in the beginning and 359.0MB in the end (delta: -28.6MB). Peak memory consumption was 79.4MB. Max. memory is 16.0GB. [2023-08-26 06:01:34,875 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 356.5MB. Free memory was 333.0MB in the beginning and 332.9MB in the end (delta: 88.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 06:01:34,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 674.13ms. Allocated memory is still 356.5MB. Free memory was 330.0MB in the beginning and 327.9MB in the end (delta: 2.1MB). Peak memory consumption was 61.6MB. Max. memory is 16.0GB. [2023-08-26 06:01:34,876 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.32ms. Allocated memory is still 356.5MB. Free memory was 327.9MB in the beginning and 324.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 06:01:34,876 INFO L158 Benchmark]: Boogie Preprocessor took 36.97ms. Allocated memory is still 356.5MB. Free memory was 324.6MB in the beginning and 321.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 06:01:34,876 INFO L158 Benchmark]: RCFGBuilder took 459.49ms. Allocated memory is still 356.5MB. Free memory was 321.7MB in the beginning and 296.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-26 06:01:34,876 INFO L158 Benchmark]: TraceAbstraction took 4462.87ms. Allocated memory was 356.5MB in the beginning and 461.4MB in the end (delta: 104.9MB). Free memory was 296.0MB in the beginning and 359.0MB in the end (delta: -63.0MB). Peak memory consumption was 42.9MB. Max. memory is 16.0GB. [2023-08-26 06:01:34,877 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 356.5MB. Free memory was 333.0MB in the beginning and 332.9MB in the end (delta: 88.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 674.13ms. Allocated memory is still 356.5MB. Free memory was 330.0MB in the beginning and 327.9MB in the end (delta: 2.1MB). Peak memory consumption was 61.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 57.32ms. Allocated memory is still 356.5MB. Free memory was 327.9MB in the beginning and 324.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 36.97ms. Allocated memory is still 356.5MB. Free memory was 324.6MB in the beginning and 321.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 459.49ms. Allocated memory is still 356.5MB. Free memory was 321.7MB in the beginning and 296.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 4462.87ms. Allocated memory was 356.5MB in the beginning and 461.4MB in the end (delta: 104.9MB). Free memory was 296.0MB in the beginning and 359.0MB in the end (delta: -63.0MB). Peak memory consumption was 42.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 237]: Unsoundness Warning unspecified type, defaulting to int C: short [237] - GenericResultAtLocation [Line: 729]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [729] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 129 PlacesBefore, 26 PlacesAfterwards, 130 TransitionsBefore, 23 TransitionsAfterwards, 416 CoEnabledTransitionPairs, 8 FixpointIterations, 118 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 12 TrivialYvCompositions, 2 ConcurrentYvCompositions, 4 ChoiceCompositions, 170 TotalNumberOfCompositions, 597 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 475, independent: 424, independent conditional: 0, independent unconditional: 424, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 248, independent: 234, independent conditional: 0, independent unconditional: 234, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 475, independent: 190, independent conditional: 0, independent unconditional: 190, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 248, unknown conditional: 0, unknown unconditional: 248] , Statistics on independence cache: Total cache size (in pairs): 3, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1693]: assertion can be violated assertion can be violated We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1734] CALL, EXPR 0 module_init() [L1709] 0 pdev = 1 [L1710] EXPR 0 pdev==1 [L1710] CALL 0 ldv_assert(pdev==1) [L1695] COND FALSE 0 !(!expression) [L1710] RET 0 ldv_assert(pdev==1) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1713] 0 return 0; [L1734] RET, EXPR 0 module_init() [L1734] COND FALSE 0 !(module_init()!=0) [L1735] CALL 0 module_exit() [L1721] 0 void *status; [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={4:0}, pdev=4, status={5:0}, t1={3:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1726] EXPR 0 pdev==4 [L1726] CALL 0 ldv_assert(pdev==4) [L1695] COND TRUE 0 !expression [L1695] CALL 0 reach_error() [L1693] COND FALSE 0 !(0) [L1693] 0 __assert_fail ("0", "race-1_3-join.c", 10, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] - UnprovableResult [Line: 1702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1728]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1730]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1731]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 1712]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 143 locations, 16 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: 4.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 06:01:34,891 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...