/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/weaver/test-easy10.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 10:59:30,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 10:59:30,799 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 10:59:30,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 10:59:30,804 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 10:59:30,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 10:59:30,835 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 10:59:30,836 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 10:59:30,836 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 10:59:30,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 10:59:30,840 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 10:59:30,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 10:59:30,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 10:59:30,842 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 10:59:30,842 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 10:59:30,842 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 10:59:30,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 10:59:30,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 10:59:30,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 10:59:30,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 10:59:30,843 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 10:59:30,844 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 10:59:30,844 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 10:59:30,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 10:59:30,845 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 10:59:30,845 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 10:59:30,845 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 10:59:30,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 10:59:30,846 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 10:59:30,846 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 10:59:30,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 10:59:30,847 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 10:59:30,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 10:59:30,847 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 10:59:30,848 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 10:59:30,848 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 10:59:31,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 10:59:31,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 10:59:31,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 10:59:31,184 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 10:59:31,185 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 10:59:31,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy10.wvr.c [2023-08-26 10:59:32,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 10:59:32,572 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 10:59:32,572 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c [2023-08-26 10:59:32,579 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80b55b7bc/e596b8bc1d0d46dea16f27beb8153f64/FLAGccda902a5 [2023-08-26 10:59:32,591 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80b55b7bc/e596b8bc1d0d46dea16f27beb8153f64 [2023-08-26 10:59:32,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 10:59:32,595 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 10:59:32,595 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 10:59:32,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 10:59:32,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 10:59:32,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:59:32" (1/1) ... [2023-08-26 10:59:32,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c0a146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:59:32, skipping insertion in model container [2023-08-26 10:59:32,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 10:59:32" (1/1) ... [2023-08-26 10:59:32,630 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 10:59:32,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 10:59:32,855 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 10:59:32,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 10:59:32,916 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 10:59:32,916 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-26 10:59:32,922 INFO L206 MainTranslator]: Completed translation [2023-08-26 10:59:32,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:59:32 WrapperNode [2023-08-26 10:59:32,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 10:59:32,924 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 10:59:32,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 10:59:32,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 10:59:32,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:59:32" (1/1) ... [2023-08-26 10:59:32,952 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:59:32" (1/1) ... [2023-08-26 10:59:32,995 INFO L138 Inliner]: procedures = 23, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 398 [2023-08-26 10:59:32,995 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 10:59:32,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 10:59:32,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 10:59:32,996 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 10:59:33,013 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:59:32" (1/1) ... [2023-08-26 10:59:33,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:59:32" (1/1) ... [2023-08-26 10:59:33,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:59:32" (1/1) ... [2023-08-26 10:59:33,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:59:32" (1/1) ... [2023-08-26 10:59:33,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:59:32" (1/1) ... [2023-08-26 10:59:33,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:59:32" (1/1) ... [2023-08-26 10:59:33,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:59:32" (1/1) ... [2023-08-26 10:59:33,031 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:59:32" (1/1) ... [2023-08-26 10:59:33,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 10:59:33,035 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 10:59:33,035 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 10:59:33,035 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 10:59:33,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:59:32" (1/1) ... [2023-08-26 10:59:33,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 10:59:33,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 10:59:33,074 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 10:59:33,096 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 10:59:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 10:59:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 10:59:33,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 10:59:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 10:59:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 10:59:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-26 10:59:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-26 10:59:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-26 10:59:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-26 10:59:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 10:59:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 10:59:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 10:59:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-26 10:59:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-26 10:59:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 10:59:33,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 10:59:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 10:59:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 10:59:33,116 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 10:59:33,232 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 10:59:33,234 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 10:59:33,813 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 10:59:33,956 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 10:59:33,957 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 10:59:33,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:59:33 BoogieIcfgContainer [2023-08-26 10:59:33,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 10:59:33,960 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 10:59:33,960 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 10:59:33,963 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 10:59:33,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 10:59:32" (1/3) ... [2023-08-26 10:59:33,963 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20adcc61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:59:33, skipping insertion in model container [2023-08-26 10:59:33,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 10:59:32" (2/3) ... [2023-08-26 10:59:33,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20adcc61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 10:59:33, skipping insertion in model container [2023-08-26 10:59:33,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 10:59:33" (3/3) ... [2023-08-26 10:59:33,965 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2023-08-26 10:59:33,980 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 10:59:33,981 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2023-08-26 10:59:33,981 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 10:59:34,040 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-26 10:59:34,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 267 places, 258 transitions, 548 flow [2023-08-26 10:59:34,139 INFO L124 PetriNetUnfolderBase]: 4/254 cut-off events. [2023-08-26 10:59:34,140 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-26 10:59:34,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 254 events. 4/254 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 305 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2023-08-26 10:59:34,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 267 places, 258 transitions, 548 flow [2023-08-26 10:59:34,150 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 250 places, 241 transitions, 506 flow [2023-08-26 10:59:34,153 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 10:59:34,166 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 250 places, 241 transitions, 506 flow [2023-08-26 10:59:34,168 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 250 places, 241 transitions, 506 flow [2023-08-26 10:59:34,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 250 places, 241 transitions, 506 flow [2023-08-26 10:59:34,239 INFO L124 PetriNetUnfolderBase]: 4/241 cut-off events. [2023-08-26 10:59:34,240 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-26 10:59:34,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 241 events. 4/241 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 304 event pairs, 0 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 164. Up to 2 conditions per place. [2023-08-26 10:59:34,247 INFO L119 LiptonReduction]: Number of co-enabled transitions 9120 [2023-08-26 10:59:40,206 INFO L134 LiptonReduction]: Checked pairs total: 70233 [2023-08-26 10:59:40,206 INFO L136 LiptonReduction]: Total number of compositions: 216 [2023-08-26 10:59:40,218 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 10:59:40,223 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;@5e41e87a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 10:59:40,223 INFO L358 AbstractCegarLoop]: Starting to check reachability of 109 error locations. [2023-08-26 10:59:40,224 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 10:59:40,224 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 10:59:40,224 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 10:59:40,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 10:59:40,225 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 10:59:40,225 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2023-08-26 10:59:40,229 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 10:59:40,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1275, now seen corresponding path program 1 times [2023-08-26 10:59:40,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 10:59:40,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789751320] [2023-08-26 10:59:40,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 10:59:40,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 10:59:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 10:59:40,314 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 10:59:40,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 10:59:40,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789751320] [2023-08-26 10:59:40,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789751320] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 10:59:40,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 10:59:40,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 10:59:40,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68954518] [2023-08-26 10:59:40,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 10:59:40,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 10:59:40,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 10:59:40,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 10:59:40,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 10:59:40,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 474 [2023-08-26 10:59:40,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 101 transitions, 226 flow. Second operand has 2 states, 2 states have (on average 179.5) internal successors, (359), 2 states have internal predecessors, (359), 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 10:59:40,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 10:59:40,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 474 [2023-08-26 10:59:40,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 10:59:42,490 INFO L124 PetriNetUnfolderBase]: 17952/24353 cut-off events. [2023-08-26 10:59:42,490 INFO L125 PetriNetUnfolderBase]: For 1379/1379 co-relation queries the response was YES. [2023-08-26 10:59:42,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49912 conditions, 24353 events. 17952/24353 cut-off events. For 1379/1379 co-relation queries the response was YES. Maximal size of possible extension queue 554. Compared 118671 event pairs, 17952 based on Foata normal form. 0/24353 useless extension candidates. Maximal degree in co-relation 44012. Up to 24354 conditions per place. [2023-08-26 10:59:42,628 INFO L140 encePairwiseOnDemand]: 414/474 looper letters, 41 selfloop transitions, 0 changer transitions 0/41 dead transitions. [2023-08-26 10:59:42,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 41 transitions, 188 flow [2023-08-26 10:59:42,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 10:59:42,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 10:59:42,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 459 transitions. [2023-08-26 10:59:42,646 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48417721518987344 [2023-08-26 10:59:42,647 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 459 transitions. [2023-08-26 10:59:42,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 459 transitions. [2023-08-26 10:59:42,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 10:59:42,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 459 transitions. [2023-08-26 10:59:42,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 229.5) internal successors, (459), 2 states have internal predecessors, (459), 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 10:59:42,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 474.0) internal successors, (1422), 3 states have internal predecessors, (1422), 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 10:59:42,662 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 474.0) internal successors, (1422), 3 states have internal predecessors, (1422), 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 10:59:42,663 INFO L175 Difference]: Start difference. First operand has 114 places, 101 transitions, 226 flow. Second operand 2 states and 459 transitions. [2023-08-26 10:59:42,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 41 transitions, 188 flow [2023-08-26 10:59:42,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 41 transitions, 172 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-26 10:59:42,715 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 90 flow [2023-08-26 10:59:42,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=90, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2023-08-26 10:59:42,719 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -67 predicate places. [2023-08-26 10:59:42,720 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 90 flow [2023-08-26 10:59:42,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 179.5) internal successors, (359), 2 states have internal predecessors, (359), 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 10:59:42,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 10:59:42,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 10:59:42,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 10:59:42,721 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2023-08-26 10:59:42,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 10:59:42,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1591813676, now seen corresponding path program 1 times [2023-08-26 10:59:42,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 10:59:42,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114544300] [2023-08-26 10:59:42,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 10:59:42,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 10:59:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 10:59:45,640 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 10:59:45,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 10:59:45,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114544300] [2023-08-26 10:59:45,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114544300] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 10:59:45,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 10:59:45,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-26 10:59:45,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495159861] [2023-08-26 10:59:45,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 10:59:45,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-26 10:59:45,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 10:59:45,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-26 10:59:45,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-08-26 10:59:45,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 474 [2023-08-26 10:59:45,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 41 transitions, 90 flow. Second operand has 14 states, 14 states have (on average 165.92857142857142) internal successors, (2323), 14 states have internal predecessors, (2323), 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 10:59:45,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 10:59:45,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 474 [2023-08-26 10:59:45,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 10:59:51,008 INFO L124 PetriNetUnfolderBase]: 32730/45190 cut-off events. [2023-08-26 10:59:51,008 INFO L125 PetriNetUnfolderBase]: For 385/385 co-relation queries the response was YES. [2023-08-26 10:59:51,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91091 conditions, 45190 events. 32730/45190 cut-off events. For 385/385 co-relation queries the response was YES. Maximal size of possible extension queue 1024. Compared 264566 event pairs, 3741 based on Foata normal form. 1/45191 useless extension candidates. Maximal degree in co-relation 91088. Up to 14835 conditions per place. [2023-08-26 10:59:51,200 INFO L140 encePairwiseOnDemand]: 459/474 looper letters, 269 selfloop transitions, 18 changer transitions 19/306 dead transitions. [2023-08-26 10:59:51,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 306 transitions, 1280 flow [2023-08-26 10:59:51,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-26 10:59:51,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-26 10:59:51,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2915 transitions. [2023-08-26 10:59:51,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38436181434599154 [2023-08-26 10:59:51,210 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2915 transitions. [2023-08-26 10:59:51,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2915 transitions. [2023-08-26 10:59:51,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 10:59:51,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2915 transitions. [2023-08-26 10:59:51,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 182.1875) internal successors, (2915), 16 states have internal predecessors, (2915), 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 10:59:51,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 474.0) internal successors, (8058), 17 states have internal predecessors, (8058), 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 10:59:51,237 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 474.0) internal successors, (8058), 17 states have internal predecessors, (8058), 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 10:59:51,237 INFO L175 Difference]: Start difference. First operand has 47 places, 41 transitions, 90 flow. Second operand 16 states and 2915 transitions. [2023-08-26 10:59:51,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 306 transitions, 1280 flow [2023-08-26 10:59:51,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 306 transitions, 1280 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 10:59:51,244 INFO L231 Difference]: Finished difference. Result has 74 places, 59 transitions, 229 flow [2023-08-26 10:59:51,245 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=229, PETRI_PLACES=74, PETRI_TRANSITIONS=59} [2023-08-26 10:59:51,246 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -40 predicate places. [2023-08-26 10:59:51,249 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 59 transitions, 229 flow [2023-08-26 10:59:51,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 165.92857142857142) internal successors, (2323), 14 states have internal predecessors, (2323), 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 10:59:51,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 10:59:51,252 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 10:59:51,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 10:59:51,257 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2023-08-26 10:59:51,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 10:59:51,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1585247806, now seen corresponding path program 2 times [2023-08-26 10:59:51,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 10:59:51,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025794014] [2023-08-26 10:59:51,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 10:59:51,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 10:59:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 10:59:51,611 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 10:59:51,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 10:59:51,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025794014] [2023-08-26 10:59:51,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025794014] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 10:59:51,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 10:59:51,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 10:59:51,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826864579] [2023-08-26 10:59:51,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 10:59:51,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 10:59:51,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 10:59:51,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 10:59:51,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 10:59:51,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 474 [2023-08-26 10:59:51,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 59 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 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 10:59:51,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 10:59:51,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 474 [2023-08-26 10:59:51,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 10:59:54,307 INFO L124 PetriNetUnfolderBase]: 27428/38047 cut-off events. [2023-08-26 10:59:54,308 INFO L125 PetriNetUnfolderBase]: For 25310/25310 co-relation queries the response was YES. [2023-08-26 10:59:54,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102515 conditions, 38047 events. 27428/38047 cut-off events. For 25310/25310 co-relation queries the response was YES. Maximal size of possible extension queue 837. Compared 216077 event pairs, 7931 based on Foata normal form. 456/38503 useless extension candidates. Maximal degree in co-relation 102500. Up to 32554 conditions per place. [2023-08-26 10:59:54,577 INFO L140 encePairwiseOnDemand]: 471/474 looper letters, 76 selfloop transitions, 2 changer transitions 0/78 dead transitions. [2023-08-26 10:59:54,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 78 transitions, 439 flow [2023-08-26 10:59:54,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 10:59:54,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 10:59:54,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 598 transitions. [2023-08-26 10:59:54,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42053445850914206 [2023-08-26 10:59:54,581 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 598 transitions. [2023-08-26 10:59:54,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 598 transitions. [2023-08-26 10:59:54,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 10:59:54,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 598 transitions. [2023-08-26 10:59:54,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 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 10:59:54,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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 10:59:54,587 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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 10:59:54,587 INFO L175 Difference]: Start difference. First operand has 74 places, 59 transitions, 229 flow. Second operand 3 states and 598 transitions. [2023-08-26 10:59:54,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 78 transitions, 439 flow [2023-08-26 10:59:55,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 78 transitions, 429 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-26 10:59:55,205 INFO L231 Difference]: Finished difference. Result has 70 places, 55 transitions, 209 flow [2023-08-26 10:59:55,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=209, PETRI_PLACES=70, PETRI_TRANSITIONS=55} [2023-08-26 10:59:55,206 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -44 predicate places. [2023-08-26 10:59:55,207 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 55 transitions, 209 flow [2023-08-26 10:59:55,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 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 10:59:55,207 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 10:59:55,207 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 10:59:55,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 10:59:55,207 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2023-08-26 10:59:55,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 10:59:55,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1072349220, now seen corresponding path program 3 times [2023-08-26 10:59:55,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 10:59:55,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197382253] [2023-08-26 10:59:55,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 10:59:55,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 10:59:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 10:59:57,161 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 10:59:57,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 10:59:57,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197382253] [2023-08-26 10:59:57,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197382253] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 10:59:57,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 10:59:57,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-26 10:59:57,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830122830] [2023-08-26 10:59:57,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 10:59:57,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-26 10:59:57,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 10:59:57,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-26 10:59:57,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-08-26 10:59:57,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 474 [2023-08-26 10:59:57,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 55 transitions, 209 flow. Second operand has 14 states, 14 states have (on average 165.92857142857142) internal successors, (2323), 14 states have internal predecessors, (2323), 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 10:59:57,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 10:59:57,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 474 [2023-08-26 10:59:57,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 11:00:02,803 INFO L124 PetriNetUnfolderBase]: 42992/60602 cut-off events. [2023-08-26 11:00:02,803 INFO L125 PetriNetUnfolderBase]: For 35995/35995 co-relation queries the response was YES. [2023-08-26 11:00:02,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162355 conditions, 60602 events. 42992/60602 cut-off events. For 35995/35995 co-relation queries the response was YES. Maximal size of possible extension queue 1423. Compared 379088 event pairs, 7143 based on Foata normal form. 1/60603 useless extension candidates. Maximal degree in co-relation 162341. Up to 19421 conditions per place. [2023-08-26 11:00:03,155 INFO L140 encePairwiseOnDemand]: 460/474 looper letters, 284 selfloop transitions, 25 changer transitions 15/324 dead transitions. [2023-08-26 11:00:03,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 324 transitions, 1768 flow [2023-08-26 11:00:03,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-26 11:00:03,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-26 11:00:03,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2721 transitions. [2023-08-26 11:00:03,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3827004219409283 [2023-08-26 11:00:03,163 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2721 transitions. [2023-08-26 11:00:03,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2721 transitions. [2023-08-26 11:00:03,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 11:00:03,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2721 transitions. [2023-08-26 11:00:03,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 181.4) internal successors, (2721), 15 states have internal predecessors, (2721), 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 11:00:03,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 474.0) internal successors, (7584), 16 states have internal predecessors, (7584), 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 11:00:03,181 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 474.0) internal successors, (7584), 16 states have internal predecessors, (7584), 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 11:00:03,181 INFO L175 Difference]: Start difference. First operand has 70 places, 55 transitions, 209 flow. Second operand 15 states and 2721 transitions. [2023-08-26 11:00:03,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 324 transitions, 1768 flow [2023-08-26 11:00:04,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 324 transitions, 1746 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 11:00:04,495 INFO L231 Difference]: Finished difference. Result has 96 places, 78 transitions, 470 flow [2023-08-26 11:00:04,496 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=470, PETRI_PLACES=96, PETRI_TRANSITIONS=78} [2023-08-26 11:00:04,496 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -18 predicate places. [2023-08-26 11:00:04,496 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 78 transitions, 470 flow [2023-08-26 11:00:04,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 165.92857142857142) internal successors, (2323), 14 states have internal predecessors, (2323), 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 11:00:04,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 11:00:04,498 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 11:00:04,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 11:00:04,498 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2023-08-26 11:00:04,499 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 11:00:04,499 INFO L85 PathProgramCache]: Analyzing trace with hash 264060504, now seen corresponding path program 4 times [2023-08-26 11:00:04,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 11:00:04,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141391775] [2023-08-26 11:00:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 11:00:04,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 11:00:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 11:00:04,889 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 11:00:04,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 11:00:04,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141391775] [2023-08-26 11:00:04,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141391775] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 11:00:04,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 11:00:04,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 11:00:04,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160476915] [2023-08-26 11:00:04,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 11:00:04,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 11:00:04,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 11:00:04,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 11:00:04,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 11:00:04,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 474 [2023-08-26 11:00:04,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 78 transitions, 470 flow. Second operand has 4 states, 4 states have (on average 187.25) internal successors, (749), 4 states have internal predecessors, (749), 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 11:00:04,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 11:00:04,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 474 [2023-08-26 11:00:04,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 11:00:08,583 INFO L124 PetriNetUnfolderBase]: 31378/44847 cut-off events. [2023-08-26 11:00:08,583 INFO L125 PetriNetUnfolderBase]: For 100377/100377 co-relation queries the response was YES. [2023-08-26 11:00:08,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151491 conditions, 44847 events. 31378/44847 cut-off events. For 100377/100377 co-relation queries the response was YES. Maximal size of possible extension queue 1047. Compared 276481 event pairs, 9895 based on Foata normal form. 616/45463 useless extension candidates. Maximal degree in co-relation 151464. Up to 38552 conditions per place. [2023-08-26 11:00:08,930 INFO L140 encePairwiseOnDemand]: 470/474 looper letters, 133 selfloop transitions, 4 changer transitions 0/137 dead transitions. [2023-08-26 11:00:08,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 137 transitions, 1082 flow [2023-08-26 11:00:08,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 11:00:08,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 11:00:08,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 792 transitions. [2023-08-26 11:00:08,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4177215189873418 [2023-08-26 11:00:08,932 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 792 transitions. [2023-08-26 11:00:08,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 792 transitions. [2023-08-26 11:00:08,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 11:00:08,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 792 transitions. [2023-08-26 11:00:08,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 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 11:00:08,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 474.0) internal successors, (2370), 5 states have internal predecessors, (2370), 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 11:00:08,938 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 474.0) internal successors, (2370), 5 states have internal predecessors, (2370), 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 11:00:08,938 INFO L175 Difference]: Start difference. First operand has 96 places, 78 transitions, 470 flow. Second operand 4 states and 792 transitions. [2023-08-26 11:00:08,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 137 transitions, 1082 flow [2023-08-26 11:00:10,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 137 transitions, 1032 flow, removed 22 selfloop flow, removed 4 redundant places. [2023-08-26 11:00:10,721 INFO L231 Difference]: Finished difference. Result has 95 places, 77 transitions, 449 flow [2023-08-26 11:00:10,721 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=449, PETRI_PLACES=95, PETRI_TRANSITIONS=77} [2023-08-26 11:00:10,722 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, -19 predicate places. [2023-08-26 11:00:10,722 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 77 transitions, 449 flow [2023-08-26 11:00:10,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 187.25) internal successors, (749), 4 states have internal predecessors, (749), 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 11:00:10,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 11:00:10,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 11:00:10,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 11:00:10,723 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2023-08-26 11:00:10,723 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 11:00:10,724 INFO L85 PathProgramCache]: Analyzing trace with hash 782806566, now seen corresponding path program 5 times [2023-08-26 11:00:10,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 11:00:10,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890161649] [2023-08-26 11:00:10,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 11:00:10,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 11:00:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 11:00:12,362 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 11:00:12,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 11:00:12,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890161649] [2023-08-26 11:00:12,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890161649] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 11:00:12,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 11:00:12,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-26 11:00:12,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532591345] [2023-08-26 11:00:12,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 11:00:12,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-26 11:00:12,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 11:00:12,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-26 11:00:12,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-08-26 11:00:12,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 474 [2023-08-26 11:00:12,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 77 transitions, 449 flow. Second operand has 14 states, 14 states have (on average 165.92857142857142) internal successors, (2323), 14 states have internal predecessors, (2323), 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 11:00:12,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 11:00:12,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 474 [2023-08-26 11:00:12,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 11:00:19,507 INFO L124 PetriNetUnfolderBase]: 45604/66064 cut-off events. [2023-08-26 11:00:19,507 INFO L125 PetriNetUnfolderBase]: For 136545/136545 co-relation queries the response was YES. [2023-08-26 11:00:19,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222997 conditions, 66064 events. 45604/66064 cut-off events. For 136545/136545 co-relation queries the response was YES. Maximal size of possible extension queue 1645. Compared 441913 event pairs, 9729 based on Foata normal form. 1/66065 useless extension candidates. Maximal degree in co-relation 222970. Up to 16729 conditions per place. [2023-08-26 11:00:20,008 INFO L140 encePairwiseOnDemand]: 460/474 looper letters, 339 selfloop transitions, 50 changer transitions 9/398 dead transitions. [2023-08-26 11:00:20,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 398 transitions, 2850 flow [2023-08-26 11:00:20,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-26 11:00:20,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-26 11:00:20,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2725 transitions. [2023-08-26 11:00:20,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3832630098452883 [2023-08-26 11:00:20,014 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2725 transitions. [2023-08-26 11:00:20,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2725 transitions. [2023-08-26 11:00:20,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 11:00:20,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2725 transitions. [2023-08-26 11:00:20,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 181.66666666666666) internal successors, (2725), 15 states have internal predecessors, (2725), 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 11:00:20,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 474.0) internal successors, (7584), 16 states have internal predecessors, (7584), 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 11:00:20,030 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 474.0) internal successors, (7584), 16 states have internal predecessors, (7584), 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 11:00:20,030 INFO L175 Difference]: Start difference. First operand has 95 places, 77 transitions, 449 flow. Second operand 15 states and 2725 transitions. [2023-08-26 11:00:20,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 398 transitions, 2850 flow [2023-08-26 11:00:22,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 398 transitions, 2830 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 11:00:22,390 INFO L231 Difference]: Finished difference. Result has 120 places, 116 transitions, 1029 flow [2023-08-26 11:00:22,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1029, PETRI_PLACES=120, PETRI_TRANSITIONS=116} [2023-08-26 11:00:22,393 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 6 predicate places. [2023-08-26 11:00:22,396 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 116 transitions, 1029 flow [2023-08-26 11:00:22,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 165.92857142857142) internal successors, (2323), 14 states have internal predecessors, (2323), 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 11:00:22,397 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 11:00:22,397 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 11:00:22,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 11:00:22,397 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2023-08-26 11:00:22,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 11:00:22,398 INFO L85 PathProgramCache]: Analyzing trace with hash 989419870, now seen corresponding path program 6 times [2023-08-26 11:00:22,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 11:00:22,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492857214] [2023-08-26 11:00:22,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 11:00:22,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 11:00:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 11:00:23,836 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 11:00:23,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 11:00:23,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492857214] [2023-08-26 11:00:23,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492857214] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 11:00:23,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 11:00:23,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-26 11:00:23,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282225493] [2023-08-26 11:00:23,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 11:00:23,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-26 11:00:23,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 11:00:23,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-26 11:00:23,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-08-26 11:00:23,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 474 [2023-08-26 11:00:23,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 116 transitions, 1029 flow. Second operand has 14 states, 14 states have (on average 165.92857142857142) internal successors, (2323), 14 states have internal predecessors, (2323), 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 11:00:23,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 11:00:23,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 474 [2023-08-26 11:00:23,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 11:00:33,708 INFO L124 PetriNetUnfolderBase]: 58693/85599 cut-off events. [2023-08-26 11:00:33,708 INFO L125 PetriNetUnfolderBase]: For 360432/360432 co-relation queries the response was YES. [2023-08-26 11:00:34,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336828 conditions, 85599 events. 58693/85599 cut-off events. For 360432/360432 co-relation queries the response was YES. Maximal size of possible extension queue 2181. Compared 602078 event pairs, 10677 based on Foata normal form. 1/85600 useless extension candidates. Maximal degree in co-relation 336789. Up to 30894 conditions per place. [2023-08-26 11:00:34,531 INFO L140 encePairwiseOnDemand]: 460/474 looper letters, 388 selfloop transitions, 83 changer transitions 9/480 dead transitions. [2023-08-26 11:00:34,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 480 transitions, 4320 flow [2023-08-26 11:00:34,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-26 11:00:34,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-26 11:00:34,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2729 transitions. [2023-08-26 11:00:34,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38382559774964836 [2023-08-26 11:00:34,538 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2729 transitions. [2023-08-26 11:00:34,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2729 transitions. [2023-08-26 11:00:34,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 11:00:34,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2729 transitions. [2023-08-26 11:00:34,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 181.93333333333334) internal successors, (2729), 15 states have internal predecessors, (2729), 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 11:00:34,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 474.0) internal successors, (7584), 16 states have internal predecessors, (7584), 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 11:00:34,565 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 474.0) internal successors, (7584), 16 states have internal predecessors, (7584), 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 11:00:34,565 INFO L175 Difference]: Start difference. First operand has 120 places, 116 transitions, 1029 flow. Second operand 15 states and 2729 transitions. [2023-08-26 11:00:34,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 480 transitions, 4320 flow [2023-08-26 11:00:43,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 480 transitions, 4256 flow, removed 24 selfloop flow, removed 2 redundant places. [2023-08-26 11:00:43,657 INFO L231 Difference]: Finished difference. Result has 142 places, 161 transitions, 1880 flow [2023-08-26 11:00:43,657 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=1009, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1880, PETRI_PLACES=142, PETRI_TRANSITIONS=161} [2023-08-26 11:00:43,658 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 28 predicate places. [2023-08-26 11:00:43,658 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 161 transitions, 1880 flow [2023-08-26 11:00:43,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 165.92857142857142) internal successors, (2323), 14 states have internal predecessors, (2323), 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 11:00:43,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 11:00:43,659 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 11:00:43,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 11:00:43,659 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2023-08-26 11:00:43,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 11:00:43,660 INFO L85 PathProgramCache]: Analyzing trace with hash -148820280, now seen corresponding path program 7 times [2023-08-26 11:00:43,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 11:00:43,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260729798] [2023-08-26 11:00:43,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 11:00:43,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 11:00:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 11:00:43,920 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 11:00:43,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 11:00:43,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260729798] [2023-08-26 11:00:43,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260729798] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 11:00:43,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 11:00:43,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 11:00:43,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169687599] [2023-08-26 11:00:43,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 11:00:43,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 11:00:43,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 11:00:43,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 11:00:43,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 11:00:43,924 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 474 [2023-08-26 11:00:43,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 161 transitions, 1880 flow. Second operand has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 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 11:00:43,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 11:00:43,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 474 [2023-08-26 11:00:43,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 11:00:51,670 INFO L124 PetriNetUnfolderBase]: 48048/70249 cut-off events. [2023-08-26 11:00:51,670 INFO L125 PetriNetUnfolderBase]: For 450386/450386 co-relation queries the response was YES. [2023-08-26 11:00:52,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316015 conditions, 70249 events. 48048/70249 cut-off events. For 450386/450386 co-relation queries the response was YES. Maximal size of possible extension queue 1687. Compared 482519 event pairs, 11821 based on Foata normal form. 806/71055 useless extension candidates. Maximal degree in co-relation 315967. Up to 61106 conditions per place. [2023-08-26 11:00:52,513 INFO L140 encePairwiseOnDemand]: 471/474 looper letters, 171 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2023-08-26 11:00:52,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 173 transitions, 2153 flow [2023-08-26 11:00:52,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 11:00:52,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 11:00:52,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 598 transitions. [2023-08-26 11:00:52,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42053445850914206 [2023-08-26 11:00:52,515 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 598 transitions. [2023-08-26 11:00:52,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 598 transitions. [2023-08-26 11:00:52,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 11:00:52,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 598 transitions. [2023-08-26 11:00:52,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 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 11:00:52,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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 11:00:52,519 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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 11:00:52,519 INFO L175 Difference]: Start difference. First operand has 142 places, 161 transitions, 1880 flow. Second operand 3 states and 598 transitions. [2023-08-26 11:00:52,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 173 transitions, 2153 flow [2023-08-26 11:01:06,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 173 transitions, 2067 flow, removed 37 selfloop flow, removed 6 redundant places. [2023-08-26 11:01:06,488 INFO L231 Difference]: Finished difference. Result has 134 places, 137 transitions, 1470 flow [2023-08-26 11:01:06,488 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=1462, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1470, PETRI_PLACES=134, PETRI_TRANSITIONS=137} [2023-08-26 11:01:06,489 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 20 predicate places. [2023-08-26 11:01:06,489 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 137 transitions, 1470 flow [2023-08-26 11:01:06,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 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 11:01:06,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 11:01:06,489 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 11:01:06,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 11:01:06,490 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2023-08-26 11:01:06,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 11:01:06,490 INFO L85 PathProgramCache]: Analyzing trace with hash 908397082, now seen corresponding path program 8 times [2023-08-26 11:01:06,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 11:01:06,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452118357] [2023-08-26 11:01:06,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 11:01:06,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 11:01:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 11:01:08,040 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 11:01:08,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 11:01:08,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452118357] [2023-08-26 11:01:08,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452118357] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 11:01:08,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 11:01:08,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-26 11:01:08,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989770651] [2023-08-26 11:01:08,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 11:01:08,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-26 11:01:08,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 11:01:08,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-26 11:01:08,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-08-26 11:01:08,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 474 [2023-08-26 11:01:08,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 137 transitions, 1470 flow. Second operand has 14 states, 14 states have (on average 165.92857142857142) internal successors, (2323), 14 states have internal predecessors, (2323), 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 11:01:08,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 11:01:08,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 474 [2023-08-26 11:01:08,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 11:01:21,350 INFO L124 PetriNetUnfolderBase]: 72308/107314 cut-off events. [2023-08-26 11:01:21,351 INFO L125 PetriNetUnfolderBase]: For 512173/512173 co-relation queries the response was YES. [2023-08-26 11:01:22,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441776 conditions, 107314 events. 72308/107314 cut-off events. For 512173/512173 co-relation queries the response was YES. Maximal size of possible extension queue 2755. Compared 798083 event pairs, 16701 based on Foata normal form. 1/107315 useless extension candidates. Maximal degree in co-relation 441731. Up to 41404 conditions per place. [2023-08-26 11:01:22,599 INFO L140 encePairwiseOnDemand]: 461/474 looper letters, 402 selfloop transitions, 75 changer transitions 20/497 dead transitions. [2023-08-26 11:01:22,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 497 transitions, 5321 flow [2023-08-26 11:01:22,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-26 11:01:22,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-26 11:01:22,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2544 transitions. [2023-08-26 11:01:22,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3833634719710669 [2023-08-26 11:01:22,604 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2544 transitions. [2023-08-26 11:01:22,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2544 transitions. [2023-08-26 11:01:22,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 11:01:22,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2544 transitions. [2023-08-26 11:01:22,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 181.71428571428572) internal successors, (2544), 14 states have internal predecessors, (2544), 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 11:01:22,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 474.0) internal successors, (7110), 15 states have internal predecessors, (7110), 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 11:01:22,617 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 474.0) internal successors, (7110), 15 states have internal predecessors, (7110), 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 11:01:22,617 INFO L175 Difference]: Start difference. First operand has 134 places, 137 transitions, 1470 flow. Second operand 14 states and 2544 transitions. [2023-08-26 11:01:22,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 497 transitions, 5321 flow [2023-08-26 11:01:40,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 497 transitions, 5291 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-26 11:01:40,280 INFO L231 Difference]: Finished difference. Result has 157 places, 193 transitions, 2624 flow [2023-08-26 11:01:40,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=1464, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2624, PETRI_PLACES=157, PETRI_TRANSITIONS=193} [2023-08-26 11:01:40,281 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 43 predicate places. [2023-08-26 11:01:40,281 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 193 transitions, 2624 flow [2023-08-26 11:01:40,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 165.92857142857142) internal successors, (2323), 14 states have internal predecessors, (2323), 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 11:01:40,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 11:01:40,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 11:01:40,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 11:01:40,283 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2023-08-26 11:01:40,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 11:01:40,283 INFO L85 PathProgramCache]: Analyzing trace with hash 2043347044, now seen corresponding path program 9 times [2023-08-26 11:01:40,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 11:01:40,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879887244] [2023-08-26 11:01:40,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 11:01:40,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 11:01:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 11:01:40,486 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 11:01:40,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 11:01:40,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879887244] [2023-08-26 11:01:40,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879887244] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 11:01:40,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 11:01:40,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 11:01:40,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003122595] [2023-08-26 11:01:40,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 11:01:40,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 11:01:40,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 11:01:40,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 11:01:40,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 11:01:40,491 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 474 [2023-08-26 11:01:40,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 193 transitions, 2624 flow. Second operand has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 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 11:01:40,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 11:01:40,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 474 [2023-08-26 11:01:40,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 11:01:48,699 INFO L124 PetriNetUnfolderBase]: 52093/79178 cut-off events. [2023-08-26 11:01:48,700 INFO L125 PetriNetUnfolderBase]: For 562713/562713 co-relation queries the response was YES. [2023-08-26 11:01:49,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362753 conditions, 79178 events. 52093/79178 cut-off events. For 562713/562713 co-relation queries the response was YES. Maximal size of possible extension queue 2160. Compared 589274 event pairs, 19539 based on Foata normal form. 1682/80860 useless extension candidates. Maximal degree in co-relation 362696. Up to 66001 conditions per place. [2023-08-26 11:01:50,227 INFO L140 encePairwiseOnDemand]: 471/474 looper letters, 225 selfloop transitions, 2 changer transitions 0/227 dead transitions. [2023-08-26 11:01:50,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 227 transitions, 3402 flow [2023-08-26 11:01:50,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 11:01:50,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 11:01:50,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2023-08-26 11:01:50,229 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4191279887482419 [2023-08-26 11:01:50,229 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 596 transitions. [2023-08-26 11:01:50,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 596 transitions. [2023-08-26 11:01:50,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 11:01:50,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 596 transitions. [2023-08-26 11:01:50,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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 11:01:50,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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 11:01:50,231 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 474.0) internal successors, (1896), 4 states have internal predecessors, (1896), 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 11:01:50,231 INFO L175 Difference]: Start difference. First operand has 157 places, 193 transitions, 2624 flow. Second operand 3 states and 596 transitions. [2023-08-26 11:01:50,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 227 transitions, 3402 flow [2023-08-26 11:02:12,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 227 transitions, 3298 flow, removed 49 selfloop flow, removed 3 redundant places. [2023-08-26 11:02:12,515 INFO L231 Difference]: Finished difference. Result has 155 places, 180 transitions, 2364 flow [2023-08-26 11:02:12,515 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=2356, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2364, PETRI_PLACES=155, PETRI_TRANSITIONS=180} [2023-08-26 11:02:12,516 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 41 predicate places. [2023-08-26 11:02:12,516 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 180 transitions, 2364 flow [2023-08-26 11:02:12,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 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 11:02:12,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 11:02:12,516 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 11:02:12,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 11:02:12,517 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2023-08-26 11:02:12,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 11:02:12,517 INFO L85 PathProgramCache]: Analyzing trace with hash 210099450, now seen corresponding path program 10 times [2023-08-26 11:02:12,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 11:02:12,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343607501] [2023-08-26 11:02:12,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 11:02:12,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 11:02:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 11:02:14,055 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 11:02:14,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 11:02:14,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343607501] [2023-08-26 11:02:14,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343607501] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 11:02:14,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 11:02:14,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-26 11:02:14,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704558061] [2023-08-26 11:02:14,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 11:02:14,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-26 11:02:14,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 11:02:14,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-26 11:02:14,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-08-26 11:02:14,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 474 [2023-08-26 11:02:14,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 180 transitions, 2364 flow. Second operand has 14 states, 14 states have (on average 165.92857142857142) internal successors, (2323), 14 states have internal predecessors, (2323), 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 11:02:14,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 11:02:14,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 474 [2023-08-26 11:02:14,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 11:02:27,729 INFO L124 PetriNetUnfolderBase]: 62468/97520 cut-off events. [2023-08-26 11:02:27,729 INFO L125 PetriNetUnfolderBase]: For 669990/669990 co-relation queries the response was YES. [2023-08-26 11:02:28,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449065 conditions, 97520 events. 62468/97520 cut-off events. For 669990/669990 co-relation queries the response was YES. Maximal size of possible extension queue 2856. Compared 781329 event pairs, 16651 based on Foata normal form. 1/97521 useless extension candidates. Maximal degree in co-relation 449009. Up to 34434 conditions per place. [2023-08-26 11:02:29,000 INFO L140 encePairwiseOnDemand]: 461/474 looper letters, 489 selfloop transitions, 91 changer transitions 10/590 dead transitions. [2023-08-26 11:02:29,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 590 transitions, 7636 flow [2023-08-26 11:02:29,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-26 11:02:29,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-26 11:02:29,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2541 transitions. [2023-08-26 11:02:29,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3829113924050633 [2023-08-26 11:02:29,005 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2541 transitions. [2023-08-26 11:02:29,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2541 transitions. [2023-08-26 11:02:29,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 11:02:29,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2541 transitions. [2023-08-26 11:02:29,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 181.5) internal successors, (2541), 14 states have internal predecessors, (2541), 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 11:02:29,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 474.0) internal successors, (7110), 15 states have internal predecessors, (7110), 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 11:02:29,016 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 474.0) internal successors, (7110), 15 states have internal predecessors, (7110), 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 11:02:29,016 INFO L175 Difference]: Start difference. First operand has 155 places, 180 transitions, 2364 flow. Second operand 14 states and 2541 transitions. [2023-08-26 11:02:29,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 590 transitions, 7636 flow [2023-08-26 11:02:47,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 590 transitions, 7586 flow, removed 16 selfloop flow, removed 2 redundant places. [2023-08-26 11:02:47,621 INFO L231 Difference]: Finished difference. Result has 178 places, 253 transitions, 3967 flow [2023-08-26 11:02:47,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=2352, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3967, PETRI_PLACES=178, PETRI_TRANSITIONS=253} [2023-08-26 11:02:47,621 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 64 predicate places. [2023-08-26 11:02:47,621 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 253 transitions, 3967 flow [2023-08-26 11:02:47,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 165.92857142857142) internal successors, (2323), 14 states have internal predecessors, (2323), 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 11:02:47,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 11:02:47,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 11:02:47,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 11:02:47,622 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2023-08-26 11:02:47,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 11:02:47,623 INFO L85 PathProgramCache]: Analyzing trace with hash 788313496, now seen corresponding path program 11 times [2023-08-26 11:02:47,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 11:02:47,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941634198] [2023-08-26 11:02:47,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 11:02:47,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 11:02:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 11:02:49,041 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 11:02:49,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 11:02:49,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941634198] [2023-08-26 11:02:49,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941634198] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 11:02:49,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 11:02:49,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-26 11:02:49,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617772398] [2023-08-26 11:02:49,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 11:02:49,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-26 11:02:49,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 11:02:49,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-26 11:02:49,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-08-26 11:02:49,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 474 [2023-08-26 11:02:49,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 253 transitions, 3967 flow. Second operand has 14 states, 14 states have (on average 165.92857142857142) internal successors, (2323), 14 states have internal predecessors, (2323), 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 11:02:49,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 11:02:49,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 474 [2023-08-26 11:02:49,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 11:03:07,498 INFO L124 PetriNetUnfolderBase]: 68739/108329 cut-off events. [2023-08-26 11:03:07,499 INFO L125 PetriNetUnfolderBase]: For 1041147/1041147 co-relation queries the response was YES. [2023-08-26 11:03:09,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544979 conditions, 108329 events. 68739/108329 cut-off events. For 1041147/1041147 co-relation queries the response was YES. Maximal size of possible extension queue 3207. Compared 897463 event pairs, 17491 based on Foata normal form. 1/108330 useless extension candidates. Maximal degree in co-relation 544911. Up to 36075 conditions per place. [2023-08-26 11:03:09,351 INFO L140 encePairwiseOnDemand]: 461/474 looper letters, 524 selfloop transitions, 138 changer transitions 11/673 dead transitions. [2023-08-26 11:03:09,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 673 transitions, 10170 flow [2023-08-26 11:03:09,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-26 11:03:09,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-26 11:03:09,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2551 transitions. [2023-08-26 11:03:09,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.384418324291742 [2023-08-26 11:03:09,355 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2551 transitions. [2023-08-26 11:03:09,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2551 transitions. [2023-08-26 11:03:09,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 11:03:09,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2551 transitions. [2023-08-26 11:03:09,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 182.21428571428572) internal successors, (2551), 14 states have internal predecessors, (2551), 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 11:03:09,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 474.0) internal successors, (7110), 15 states have internal predecessors, (7110), 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 11:03:09,365 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 474.0) internal successors, (7110), 15 states have internal predecessors, (7110), 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 11:03:09,365 INFO L175 Difference]: Start difference. First operand has 178 places, 253 transitions, 3967 flow. Second operand 14 states and 2551 transitions. [2023-08-26 11:03:09,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 673 transitions, 10170 flow [2023-08-26 11:03:35,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 673 transitions, 10058 flow, removed 47 selfloop flow, removed 3 redundant places. [2023-08-26 11:03:35,991 INFO L231 Difference]: Finished difference. Result has 199 places, 310 transitions, 5611 flow [2023-08-26 11:03:35,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=474, PETRI_DIFFERENCE_MINUEND_FLOW=3912, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5611, PETRI_PLACES=199, PETRI_TRANSITIONS=310} [2023-08-26 11:03:35,992 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 85 predicate places. [2023-08-26 11:03:35,992 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 310 transitions, 5611 flow [2023-08-26 11:03:35,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 165.92857142857142) internal successors, (2323), 14 states have internal predecessors, (2323), 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 11:03:35,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 11:03:35,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 11:03:35,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 11:03:35,993 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2023-08-26 11:03:35,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 11:03:35,994 INFO L85 PathProgramCache]: Analyzing trace with hash 145761734, now seen corresponding path program 12 times [2023-08-26 11:03:35,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 11:03:35,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243535118] [2023-08-26 11:03:35,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 11:03:35,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 11:03:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 11:03:37,379 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 11:03:37,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 11:03:37,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243535118] [2023-08-26 11:03:37,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243535118] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 11:03:37,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 11:03:37,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-08-26 11:03:37,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383424902] [2023-08-26 11:03:37,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 11:03:37,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-26 11:03:37,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 11:03:37,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-26 11:03:37,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-08-26 11:03:37,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 474 [2023-08-26 11:03:37,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 310 transitions, 5611 flow. Second operand has 14 states, 14 states have (on average 165.92857142857142) internal successors, (2323), 14 states have internal predecessors, (2323), 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 11:03:37,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 11:03:37,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 474 [2023-08-26 11:03:37,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand