/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 INSUFFICIENT_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/parallel-min-max-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 19:40:41,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 19:40:41,897 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 [2023-08-25 19:40:41,902 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 19:40:41,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 19:40:41,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 19:40:41,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 19:40:41,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 19:40:41,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 19:40:41,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 19:40:41,941 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 19:40:41,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 19:40:41,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 19:40:41,943 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 19:40:41,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 19:40:41,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 19:40:41,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 19:40:41,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 19:40:41,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 19:40:41,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 19:40:41,945 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 19:40:41,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 19:40:41,945 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 19:40:41,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 19:40:41,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 19:40:41,946 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 19:40:41,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 19:40:41,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:40:41,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 19:40:41,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 19:40:41,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 19:40:41,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 19:40:41,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 19:40:41,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 19:40:41,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 19:40:41,949 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 19:40:42,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 19:40:42,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 19:40:42,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 19:40:42,289 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 19:40:42,291 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 19:40:42,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c [2023-08-25 19:40:43,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 19:40:43,651 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 19:40:43,651 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-min-max-1.wvr.c [2023-08-25 19:40:43,659 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b97070ddd/2d67d10890de4ca686c17e828183b888/FLAGace0982d5 [2023-08-25 19:40:43,671 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b97070ddd/2d67d10890de4ca686c17e828183b888 [2023-08-25 19:40:43,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 19:40:43,675 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 19:40:43,676 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 19:40:43,676 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 19:40:43,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 19:40:43,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:40:43" (1/1) ... [2023-08-25 19:40:43,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@106904f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:40:43, skipping insertion in model container [2023-08-25 19:40:43,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:40:43" (1/1) ... [2023-08-25 19:40:43,700 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 19:40:43,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:40:43,910 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 19:40:43,953 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:40:43,965 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 19:40:43,965 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 19:40:43,972 INFO L206 MainTranslator]: Completed translation [2023-08-25 19:40:43,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:40:43 WrapperNode [2023-08-25 19:40:43,972 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 19:40:43,973 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 19:40:43,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 19:40:43,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 19:40:43,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:40:43" (1/1) ... [2023-08-25 19:40:43,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:40:43" (1/1) ... [2023-08-25 19:40:44,037 INFO L138 Inliner]: procedures = 25, calls = 54, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 223 [2023-08-25 19:40:44,038 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 19:40:44,039 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 19:40:44,039 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 19:40:44,039 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 19:40:44,047 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:40:43" (1/1) ... [2023-08-25 19:40:44,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:40:43" (1/1) ... [2023-08-25 19:40:44,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:40:43" (1/1) ... [2023-08-25 19:40:44,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:40:43" (1/1) ... [2023-08-25 19:40:44,097 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:40:43" (1/1) ... [2023-08-25 19:40:44,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:40:43" (1/1) ... [2023-08-25 19:40:44,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:40:43" (1/1) ... [2023-08-25 19:40:44,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:40:43" (1/1) ... [2023-08-25 19:40:44,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 19:40:44,108 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 19:40:44,108 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 19:40:44,108 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 19:40:44,108 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:40:43" (1/1) ... [2023-08-25 19:40:44,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:40:44,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:40:44,145 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) [2023-08-25 19:40:44,153 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 [2023-08-25 19:40:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 19:40:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 19:40:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 19:40:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 19:40:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 19:40:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 19:40:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 19:40:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 19:40:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 19:40:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 19:40:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 19:40:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 19:40:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 19:40:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 19:40:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 19:40:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 19:40:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 19:40:44,175 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 19:40:44,291 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 19:40:44,293 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 19:40:44,856 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 19:40:45,059 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 19:40:45,060 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-25 19:40:45,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:40:45 BoogieIcfgContainer [2023-08-25 19:40:45,062 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 19:40:45,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 19:40:45,064 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 19:40:45,067 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 19:40:45,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:40:43" (1/3) ... [2023-08-25 19:40:45,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338d357d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:40:45, skipping insertion in model container [2023-08-25 19:40:45,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:40:43" (2/3) ... [2023-08-25 19:40:45,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338d357d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:40:45, skipping insertion in model container [2023-08-25 19:40:45,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:40:45" (3/3) ... [2023-08-25 19:40:45,069 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-min-max-1.wvr.c [2023-08-25 19:40:45,085 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 19:40:45,085 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2023-08-25 19:40:45,086 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 19:40:45,204 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 19:40:45,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 319 places, 324 transitions, 672 flow [2023-08-25 19:40:45,361 INFO L124 PetriNetUnfolderBase]: 15/321 cut-off events. [2023-08-25 19:40:45,362 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 19:40:45,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 321 events. 15/321 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 482 event pairs, 0 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 265. Up to 2 conditions per place. [2023-08-25 19:40:45,367 INFO L82 GeneralOperation]: Start removeDead. Operand has 319 places, 324 transitions, 672 flow [2023-08-25 19:40:45,374 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 305 places, 310 transitions, 638 flow [2023-08-25 19:40:45,377 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 19:40:45,384 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 305 places, 310 transitions, 638 flow [2023-08-25 19:40:45,387 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 305 places, 310 transitions, 638 flow [2023-08-25 19:40:45,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 305 places, 310 transitions, 638 flow [2023-08-25 19:40:45,434 INFO L124 PetriNetUnfolderBase]: 15/310 cut-off events. [2023-08-25 19:40:45,435 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 19:40:45,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 310 events. 15/310 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 477 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 265. Up to 2 conditions per place. [2023-08-25 19:40:45,442 INFO L119 LiptonReduction]: Number of co-enabled transitions 5184 [2023-08-25 19:40:57,358 INFO L134 LiptonReduction]: Checked pairs total: 34871 [2023-08-25 19:40:57,358 INFO L136 LiptonReduction]: Total number of compositions: 339 [2023-08-25 19:40:57,370 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 19:40:57,376 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;@512ada82, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 19:40:57,376 INFO L358 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2023-08-25 19:40:57,377 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 19:40:57,377 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 19:40:57,377 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:40:57,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:40:57,378 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 19:40:57,378 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-25 19:40:57,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:40:57,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1431, now seen corresponding path program 1 times [2023-08-25 19:40:57,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:40:57,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788113609] [2023-08-25 19:40:57,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:40:57,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:40:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:40:57,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:40:57,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:40:57,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788113609] [2023-08-25 19:40:57,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788113609] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:40:57,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:40:57,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 19:40:57,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241118101] [2023-08-25 19:40:57,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:40:57,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 19:40:57,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:40:57,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 19:40:57,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 19:40:57,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 663 [2023-08-25 19:40:57,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 200 flow. Second operand has 2 states, 2 states have (on average 275.5) internal successors, (551), 2 states have internal predecessors, (551), 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) [2023-08-25 19:40:57,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:40:57,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 663 [2023-08-25 19:40:57,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:40:57,719 INFO L124 PetriNetUnfolderBase]: 278/621 cut-off events. [2023-08-25 19:40:57,719 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2023-08-25 19:40:57,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 621 events. 278/621 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3119 event pairs, 217 based on Foata normal form. 60/581 useless extension candidates. Maximal degree in co-relation 959. Up to 433 conditions per place. [2023-08-25 19:40:57,726 INFO L140 encePairwiseOnDemand]: 612/663 looper letters, 25 selfloop transitions, 0 changer transitions 0/40 dead transitions. [2023-08-25 19:40:57,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 40 transitions, 148 flow [2023-08-25 19:40:57,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 19:40:57,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 19:40:57,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 626 transitions. [2023-08-25 19:40:57,743 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4720965309200603 [2023-08-25 19:40:57,744 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 626 transitions. [2023-08-25 19:40:57,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 626 transitions. [2023-08-25 19:40:57,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:40:57,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 626 transitions. [2023-08-25 19:40:57,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 313.0) internal successors, (626), 2 states have internal predecessors, (626), 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) [2023-08-25 19:40:57,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 663.0) internal successors, (1989), 3 states have internal predecessors, (1989), 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) [2023-08-25 19:40:57,762 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 663.0) internal successors, (1989), 3 states have internal predecessors, (1989), 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) [2023-08-25 19:40:57,763 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 200 flow. Second operand 2 states and 626 transitions. [2023-08-25 19:40:57,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 40 transitions, 148 flow [2023-08-25 19:40:57,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 136 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 19:40:57,770 INFO L231 Difference]: Finished difference. Result has 42 places, 40 transitions, 86 flow [2023-08-25 19:40:57,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=86, PETRI_PLACES=42, PETRI_TRANSITIONS=40} [2023-08-25 19:40:57,775 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -54 predicate places. [2023-08-25 19:40:57,775 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 40 transitions, 86 flow [2023-08-25 19:40:57,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 275.5) internal successors, (551), 2 states have internal predecessors, (551), 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) [2023-08-25 19:40:57,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:40:57,777 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:40:57,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 19:40:57,777 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-25 19:40:57,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:40:57,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1617545375, now seen corresponding path program 1 times [2023-08-25 19:40:57,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:40:57,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958023064] [2023-08-25 19:40:57,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:40:57,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:40:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:40:57,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:40:57,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:40:57,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958023064] [2023-08-25 19:40:57,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958023064] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:40:57,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:40:57,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:40:57,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928727663] [2023-08-25 19:40:57,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:40:57,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:40:57,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:40:57,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:40:57,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:40:57,983 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 663 [2023-08-25 19:40:57,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 40 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 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) [2023-08-25 19:40:57,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:40:57,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 663 [2023-08-25 19:40:57,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:40:58,117 INFO L124 PetriNetUnfolderBase]: 484/894 cut-off events. [2023-08-25 19:40:58,117 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-08-25 19:40:58,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1684 conditions, 894 events. 484/894 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3828 event pairs, 405 based on Foata normal form. 0/776 useless extension candidates. Maximal degree in co-relation 1681. Up to 744 conditions per place. [2023-08-25 19:40:58,122 INFO L140 encePairwiseOnDemand]: 660/663 looper letters, 27 selfloop transitions, 1 changer transitions 0/38 dead transitions. [2023-08-25 19:40:58,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 38 transitions, 138 flow [2023-08-25 19:40:58,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:40:58,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:40:58,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 810 transitions. [2023-08-25 19:40:58,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4072398190045249 [2023-08-25 19:40:58,125 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 810 transitions. [2023-08-25 19:40:58,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 810 transitions. [2023-08-25 19:40:58,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:40:58,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 810 transitions. [2023-08-25 19:40:58,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.0) internal successors, (810), 3 states have internal predecessors, (810), 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) [2023-08-25 19:40:58,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 663.0) internal successors, (2652), 4 states have internal predecessors, (2652), 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) [2023-08-25 19:40:58,132 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 663.0) internal successors, (2652), 4 states have internal predecessors, (2652), 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) [2023-08-25 19:40:58,132 INFO L175 Difference]: Start difference. First operand has 42 places, 40 transitions, 86 flow. Second operand 3 states and 810 transitions. [2023-08-25 19:40:58,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 38 transitions, 138 flow [2023-08-25 19:40:58,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 38 transitions, 138 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:40:58,134 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 84 flow [2023-08-25 19:40:58,134 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2023-08-25 19:40:58,134 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -54 predicate places. [2023-08-25 19:40:58,135 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 84 flow [2023-08-25 19:40:58,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 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) [2023-08-25 19:40:58,135 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:40:58,135 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:40:58,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 19:40:58,136 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-25 19:40:58,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:40:58,136 INFO L85 PathProgramCache]: Analyzing trace with hash 2086084557, now seen corresponding path program 1 times [2023-08-25 19:40:58,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:40:58,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221109586] [2023-08-25 19:40:58,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:40:58,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:40:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:40:58,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:40:58,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:40:58,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221109586] [2023-08-25 19:40:58,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221109586] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:40:58,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:40:58,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:40:58,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593673240] [2023-08-25 19:40:58,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:40:58,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:40:58,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:40:58,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:40:58,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:40:58,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 663 [2023-08-25 19:40:58,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 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) [2023-08-25 19:40:58,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:40:58,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 663 [2023-08-25 19:40:58,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:40:58,465 INFO L124 PetriNetUnfolderBase]: 278/605 cut-off events. [2023-08-25 19:40:58,465 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-08-25 19:40:58,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1069 conditions, 605 events. 278/605 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2910 event pairs, 217 based on Foata normal form. 0/520 useless extension candidates. Maximal degree in co-relation 1065. Up to 433 conditions per place. [2023-08-25 19:40:58,468 INFO L140 encePairwiseOnDemand]: 660/663 looper letters, 24 selfloop transitions, 2 changer transitions 0/39 dead transitions. [2023-08-25 19:40:58,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 39 transitions, 138 flow [2023-08-25 19:40:58,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:40:58,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:40:58,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 798 transitions. [2023-08-25 19:40:58,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40120663650075417 [2023-08-25 19:40:58,471 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 798 transitions. [2023-08-25 19:40:58,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 798 transitions. [2023-08-25 19:40:58,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:40:58,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 798 transitions. [2023-08-25 19:40:58,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 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) [2023-08-25 19:40:58,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 663.0) internal successors, (2652), 4 states have internal predecessors, (2652), 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) [2023-08-25 19:40:58,477 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 663.0) internal successors, (2652), 4 states have internal predecessors, (2652), 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) [2023-08-25 19:40:58,478 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 84 flow. Second operand 3 states and 798 transitions. [2023-08-25 19:40:58,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 39 transitions, 138 flow [2023-08-25 19:40:58,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 39 transitions, 137 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:40:58,479 INFO L231 Difference]: Finished difference. Result has 44 places, 39 transitions, 95 flow [2023-08-25 19:40:58,480 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=44, PETRI_TRANSITIONS=39} [2023-08-25 19:40:58,480 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -52 predicate places. [2023-08-25 19:40:58,480 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 95 flow [2023-08-25 19:40:58,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 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) [2023-08-25 19:40:58,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:40:58,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:40:58,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 19:40:58,482 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-25 19:40:58,482 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:40:58,482 INFO L85 PathProgramCache]: Analyzing trace with hash -2124707566, now seen corresponding path program 1 times [2023-08-25 19:40:58,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:40:58,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740559236] [2023-08-25 19:40:58,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:40:58,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:40:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:40:58,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:40:58,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:40:58,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740559236] [2023-08-25 19:40:58,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740559236] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:40:58,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:40:58,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:40:58,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695920300] [2023-08-25 19:40:58,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:40:58,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:40:58,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:40:58,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:40:58,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:40:58,888 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 663 [2023-08-25 19:40:58,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 95 flow. Second operand has 6 states, 6 states have (on average 241.16666666666666) internal successors, (1447), 6 states have internal predecessors, (1447), 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) [2023-08-25 19:40:58,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:40:58,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 663 [2023-08-25 19:40:58,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:40:59,276 INFO L124 PetriNetUnfolderBase]: 738/1125 cut-off events. [2023-08-25 19:40:59,276 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:40:59,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2255 conditions, 1125 events. 738/1125 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4470 event pairs, 113 based on Foata normal form. 0/1042 useless extension candidates. Maximal degree in co-relation 2250. Up to 428 conditions per place. [2023-08-25 19:40:59,283 INFO L140 encePairwiseOnDemand]: 658/663 looper letters, 71 selfloop transitions, 4 changer transitions 0/78 dead transitions. [2023-08-25 19:40:59,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 78 transitions, 323 flow [2023-08-25 19:40:59,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:40:59,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:40:59,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1509 transitions. [2023-08-25 19:40:59,288 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3793363499245852 [2023-08-25 19:40:59,288 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1509 transitions. [2023-08-25 19:40:59,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1509 transitions. [2023-08-25 19:40:59,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:40:59,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1509 transitions. [2023-08-25 19:40:59,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 251.5) internal successors, (1509), 6 states have internal predecessors, (1509), 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) [2023-08-25 19:40:59,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 663.0) internal successors, (4641), 7 states have internal predecessors, (4641), 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) [2023-08-25 19:40:59,299 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 663.0) internal successors, (4641), 7 states have internal predecessors, (4641), 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) [2023-08-25 19:40:59,299 INFO L175 Difference]: Start difference. First operand has 44 places, 39 transitions, 95 flow. Second operand 6 states and 1509 transitions. [2023-08-25 19:40:59,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 78 transitions, 323 flow [2023-08-25 19:40:59,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 78 transitions, 319 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 19:40:59,303 INFO L231 Difference]: Finished difference. Result has 47 places, 38 transitions, 97 flow [2023-08-25 19:40:59,303 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=97, PETRI_PLACES=47, PETRI_TRANSITIONS=38} [2023-08-25 19:40:59,304 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -49 predicate places. [2023-08-25 19:40:59,304 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 38 transitions, 97 flow [2023-08-25 19:40:59,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 241.16666666666666) internal successors, (1447), 6 states have internal predecessors, (1447), 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) [2023-08-25 19:40:59,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:40:59,306 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] [2023-08-25 19:40:59,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 19:40:59,306 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-25 19:40:59,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:40:59,306 INFO L85 PathProgramCache]: Analyzing trace with hash -942906843, now seen corresponding path program 1 times [2023-08-25 19:40:59,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:40:59,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770408370] [2023-08-25 19:40:59,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:40:59,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:40:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:40:59,388 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:40:59,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:40:59,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770408370] [2023-08-25 19:40:59,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770408370] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:40:59,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:40:59,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:40:59,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991228134] [2023-08-25 19:40:59,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:40:59,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:40:59,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:40:59,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:40:59,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:40:59,392 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 663 [2023-08-25 19:40:59,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 266.5) internal successors, (1066), 4 states have internal predecessors, (1066), 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) [2023-08-25 19:40:59,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:40:59,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 663 [2023-08-25 19:40:59,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:40:59,585 INFO L124 PetriNetUnfolderBase]: 378/763 cut-off events. [2023-08-25 19:40:59,585 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2023-08-25 19:40:59,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1509 conditions, 763 events. 378/763 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3649 event pairs, 217 based on Foata normal form. 0/696 useless extension candidates. Maximal degree in co-relation 1504. Up to 433 conditions per place. [2023-08-25 19:40:59,589 INFO L140 encePairwiseOnDemand]: 659/663 looper letters, 35 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2023-08-25 19:40:59,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 50 transitions, 201 flow [2023-08-25 19:40:59,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:40:59,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:40:59,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1090 transitions. [2023-08-25 19:40:59,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4110105580693816 [2023-08-25 19:40:59,593 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1090 transitions. [2023-08-25 19:40:59,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1090 transitions. [2023-08-25 19:40:59,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:40:59,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1090 transitions. [2023-08-25 19:40:59,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 272.5) internal successors, (1090), 4 states have internal predecessors, (1090), 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) [2023-08-25 19:40:59,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 663.0) internal successors, (3315), 5 states have internal predecessors, (3315), 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) [2023-08-25 19:40:59,602 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 663.0) internal successors, (3315), 5 states have internal predecessors, (3315), 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) [2023-08-25 19:40:59,602 INFO L175 Difference]: Start difference. First operand has 47 places, 38 transitions, 97 flow. Second operand 4 states and 1090 transitions. [2023-08-25 19:40:59,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 50 transitions, 201 flow [2023-08-25 19:40:59,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 50 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 19:40:59,607 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 104 flow [2023-08-25 19:40:59,607 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2023-08-25 19:40:59,609 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -49 predicate places. [2023-08-25 19:40:59,609 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 104 flow [2023-08-25 19:40:59,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 266.5) internal successors, (1066), 4 states have internal predecessors, (1066), 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) [2023-08-25 19:40:59,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:40:59,610 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:40:59,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 19:40:59,610 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-25 19:40:59,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:40:59,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1597853710, now seen corresponding path program 1 times [2023-08-25 19:40:59,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:40:59,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424651760] [2023-08-25 19:40:59,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:40:59,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:40:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:40:59,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 19:40:59,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:40:59,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424651760] [2023-08-25 19:40:59,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424651760] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:40:59,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:40:59,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 19:40:59,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153449005] [2023-08-25 19:40:59,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:40:59,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 19:40:59,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:40:59,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 19:40:59,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 19:40:59,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 663 [2023-08-25 19:40:59,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 243.0) internal successors, (1458), 6 states have internal predecessors, (1458), 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) [2023-08-25 19:40:59,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:40:59,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 663 [2023-08-25 19:40:59,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:41:00,307 INFO L124 PetriNetUnfolderBase]: 986/1489 cut-off events. [2023-08-25 19:41:00,307 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2023-08-25 19:41:00,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3331 conditions, 1489 events. 986/1489 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6172 event pairs, 765 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 3325. Up to 1342 conditions per place. [2023-08-25 19:41:00,316 INFO L140 encePairwiseOnDemand]: 658/663 looper letters, 51 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2023-08-25 19:41:00,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 58 transitions, 252 flow [2023-08-25 19:41:00,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:41:00,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:41:00,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1488 transitions. [2023-08-25 19:41:00,320 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3740573152337858 [2023-08-25 19:41:00,320 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1488 transitions. [2023-08-25 19:41:00,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1488 transitions. [2023-08-25 19:41:00,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:41:00,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1488 transitions. [2023-08-25 19:41:00,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 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) [2023-08-25 19:41:00,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 663.0) internal successors, (4641), 7 states have internal predecessors, (4641), 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) [2023-08-25 19:41:00,330 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 663.0) internal successors, (4641), 7 states have internal predecessors, (4641), 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) [2023-08-25 19:41:00,330 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 104 flow. Second operand 6 states and 1488 transitions. [2023-08-25 19:41:00,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 58 transitions, 252 flow [2023-08-25 19:41:00,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 58 transitions, 248 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:41:00,332 INFO L231 Difference]: Finished difference. Result has 49 places, 38 transitions, 106 flow [2023-08-25 19:41:00,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=106, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2023-08-25 19:41:00,332 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -47 predicate places. [2023-08-25 19:41:00,333 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 106 flow [2023-08-25 19:41:00,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 243.0) internal successors, (1458), 6 states have internal predecessors, (1458), 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) [2023-08-25 19:41:00,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:41:00,333 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:41:00,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 19:41:00,334 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-25 19:41:00,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:41:00,334 INFO L85 PathProgramCache]: Analyzing trace with hash -770450878, now seen corresponding path program 1 times [2023-08-25 19:41:00,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:41:00,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332249298] [2023-08-25 19:41:00,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:41:00,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:41:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:41:00,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:41:00,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:41:00,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332249298] [2023-08-25 19:41:00,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332249298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:41:00,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:41:00,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:41:00,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628684112] [2023-08-25 19:41:00,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:41:00,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:41:00,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:41:00,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:41:00,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:41:00,456 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 663 [2023-08-25 19:41:00,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 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) [2023-08-25 19:41:00,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:41:00,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 663 [2023-08-25 19:41:00,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:41:00,617 INFO L124 PetriNetUnfolderBase]: 468/997 cut-off events. [2023-08-25 19:41:00,617 INFO L125 PetriNetUnfolderBase]: For 129/129 co-relation queries the response was YES. [2023-08-25 19:41:00,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1961 conditions, 997 events. 468/997 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5426 event pairs, 305 based on Foata normal form. 46/1008 useless extension candidates. Maximal degree in co-relation 1955. Up to 585 conditions per place. [2023-08-25 19:41:00,623 INFO L140 encePairwiseOnDemand]: 659/663 looper letters, 37 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2023-08-25 19:41:00,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 51 transitions, 224 flow [2023-08-25 19:41:00,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:41:00,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:41:00,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1090 transitions. [2023-08-25 19:41:00,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4110105580693816 [2023-08-25 19:41:00,626 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1090 transitions. [2023-08-25 19:41:00,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1090 transitions. [2023-08-25 19:41:00,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:41:00,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1090 transitions. [2023-08-25 19:41:00,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 272.5) internal successors, (1090), 4 states have internal predecessors, (1090), 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) [2023-08-25 19:41:00,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 663.0) internal successors, (3315), 5 states have internal predecessors, (3315), 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) [2023-08-25 19:41:00,633 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 663.0) internal successors, (3315), 5 states have internal predecessors, (3315), 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) [2023-08-25 19:41:00,633 INFO L175 Difference]: Start difference. First operand has 49 places, 38 transitions, 106 flow. Second operand 4 states and 1090 transitions. [2023-08-25 19:41:00,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 51 transitions, 224 flow [2023-08-25 19:41:00,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 51 transitions, 215 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 19:41:00,635 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 113 flow [2023-08-25 19:41:00,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2023-08-25 19:41:00,635 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -47 predicate places. [2023-08-25 19:41:00,636 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 113 flow [2023-08-25 19:41:00,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 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) [2023-08-25 19:41:00,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:41:00,637 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:41:00,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 19:41:00,637 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-25 19:41:00,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:41:00,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1480940668, now seen corresponding path program 1 times [2023-08-25 19:41:00,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:41:00,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189159205] [2023-08-25 19:41:00,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:41:00,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:41:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:41:01,480 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:41:01,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:41:01,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189159205] [2023-08-25 19:41:01,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189159205] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:41:01,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852207769] [2023-08-25 19:41:01,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:41:01,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:41:01,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:41:01,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:41:01,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 19:41:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:41:01,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 21 conjunts are in the unsatisfiable core [2023-08-25 19:41:01,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:41:01,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 19:41:01,803 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 19:41:01,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 19:41:01,855 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 19:41:01,920 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 70 [2023-08-25 19:41:01,960 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:01,961 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 19:41:01,970 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-08-25 19:41:02,044 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:02,044 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 60 [2023-08-25 19:41:02,049 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 58 [2023-08-25 19:41:02,119 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 19:41:02,120 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:41:02,294 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:02,294 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 79 [2023-08-25 19:41:02,334 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:02,335 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 19:41:02,743 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_480 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_480) c_~A~0.base))) (or (forall ((thread2Thread1of1ForFork2_~i~1 Int)) (let ((.cse0 (select .cse1 (+ c_~A~0.offset (* thread2Thread1of1ForFork2_~i~1 4))))) (or (< .cse0 (select .cse1 c_~A~0.offset)) (<= c_~min~0 .cse0)))) (forall ((thread1Thread1of1ForFork1_~i~0 Int)) (<= (select .cse1 (+ c_~A~0.offset (* thread1Thread1of1ForFork1_~i~0 4))) c_~min~0))))) (forall ((v_ArrVal_480 (Array Int Int)) (thread2Thread1of1ForFork2_~i~1 Int) (thread1Thread1of1ForFork1_~i~0 Int)) (let ((.cse4 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_480) c_~A~0.base))) (let ((.cse3 (select .cse4 (+ c_~A~0.offset (* thread2Thread1of1ForFork2_~i~1 4)))) (.cse2 (select .cse4 (+ c_~A~0.offset (* thread1Thread1of1ForFork1_~i~0 4))))) (or (<= .cse2 .cse3) (< .cse3 (select .cse4 c_~A~0.offset)) (< c_~min~0 .cse2)))))) is different from false [2023-08-25 19:41:02,855 WARN L839 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_479 (Array Int Int)) (v_ArrVal_480 (Array Int Int)) (thread2Thread1of1ForFork2_~i~1 Int) (thread1Thread1of1ForFork1_~i~0 Int)) (let ((.cse1 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_479) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_480) c_~A~0.base))) (let ((.cse2 (select .cse1 (+ c_~A~0.offset (* thread1Thread1of1ForFork1_~i~0 4)))) (.cse0 (select .cse1 (+ c_~A~0.offset (* thread2Thread1of1ForFork2_~i~1 4))))) (or (< .cse0 (select .cse1 c_~A~0.offset)) (< c_~min~0 .cse2) (<= .cse2 .cse0))))) (forall ((v_ArrVal_479 (Array Int Int)) (v_ArrVal_480 (Array Int Int))) (let ((.cse4 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_479) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_480) c_~A~0.base))) (or (forall ((thread2Thread1of1ForFork2_~i~1 Int)) (let ((.cse3 (select .cse4 (+ c_~A~0.offset (* thread2Thread1of1ForFork2_~i~1 4))))) (or (< .cse3 (select .cse4 c_~A~0.offset)) (<= c_~min~0 .cse3)))) (forall ((thread1Thread1of1ForFork1_~i~0 Int)) (<= (select .cse4 (+ c_~A~0.offset (* thread1Thread1of1ForFork1_~i~0 4))) c_~min~0)))))) is different from false [2023-08-25 19:41:02,924 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:02,924 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 459 treesize of output 471 [2023-08-25 19:41:02,961 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:02,962 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 387 treesize of output 360 [2023-08-25 19:41:03,022 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:03,023 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 335 treesize of output 334 [2023-08-25 19:41:03,059 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:03,059 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 309 treesize of output 294 [2023-08-25 19:41:03,096 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:03,097 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 269 treesize of output 274 [2023-08-25 19:41:04,204 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-08-25 19:41:04,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852207769] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:41:04,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:41:04,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 9] total 22 [2023-08-25 19:41:04,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414879587] [2023-08-25 19:41:04,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:41:04,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-08-25 19:41:04,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:41:04,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-08-25 19:41:04,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=396, Unknown=2, NotChecked=82, Total=552 [2023-08-25 19:41:04,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 663 [2023-08-25 19:41:04,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 113 flow. Second operand has 24 states, 24 states have (on average 214.375) internal successors, (5145), 24 states have internal predecessors, (5145), 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) [2023-08-25 19:41:04,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:41:04,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 663 [2023-08-25 19:41:04,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:41:05,482 INFO L124 PetriNetUnfolderBase]: 1178/2211 cut-off events. [2023-08-25 19:41:05,482 INFO L125 PetriNetUnfolderBase]: For 1037/1037 co-relation queries the response was YES. [2023-08-25 19:41:05,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5259 conditions, 2211 events. 1178/2211 cut-off events. For 1037/1037 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 13249 event pairs, 132 based on Foata normal form. 2/2202 useless extension candidates. Maximal degree in co-relation 5252. Up to 528 conditions per place. [2023-08-25 19:41:05,493 INFO L140 encePairwiseOnDemand]: 654/663 looper letters, 77 selfloop transitions, 13 changer transitions 76/173 dead transitions. [2023-08-25 19:41:05,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 173 transitions, 863 flow [2023-08-25 19:41:05,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-25 19:41:05,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-25 19:41:05,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3533 transitions. [2023-08-25 19:41:05,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.33305052790346906 [2023-08-25 19:41:05,503 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3533 transitions. [2023-08-25 19:41:05,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3533 transitions. [2023-08-25 19:41:05,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:41:05,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3533 transitions. [2023-08-25 19:41:05,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 220.8125) internal successors, (3533), 16 states have internal predecessors, (3533), 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) [2023-08-25 19:41:05,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 663.0) internal successors, (11271), 17 states have internal predecessors, (11271), 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) [2023-08-25 19:41:05,537 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 663.0) internal successors, (11271), 17 states have internal predecessors, (11271), 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) [2023-08-25 19:41:05,537 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 113 flow. Second operand 16 states and 3533 transitions. [2023-08-25 19:41:05,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 173 transitions, 863 flow [2023-08-25 19:41:05,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 173 transitions, 837 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:41:05,550 INFO L231 Difference]: Finished difference. Result has 69 places, 46 transitions, 186 flow [2023-08-25 19:41:05,550 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=186, PETRI_PLACES=69, PETRI_TRANSITIONS=46} [2023-08-25 19:41:05,551 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -27 predicate places. [2023-08-25 19:41:05,551 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 46 transitions, 186 flow [2023-08-25 19:41:05,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 214.375) internal successors, (5145), 24 states have internal predecessors, (5145), 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) [2023-08-25 19:41:05,554 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:41:05,554 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:41:05,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-25 19:41:05,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:41:05,761 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-25 19:41:05,761 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:41:05,761 INFO L85 PathProgramCache]: Analyzing trace with hash 960236270, now seen corresponding path program 2 times [2023-08-25 19:41:05,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:41:05,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120455712] [2023-08-25 19:41:05,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:41:05,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:41:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:41:06,213 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-25 19:41:06,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:41:06,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120455712] [2023-08-25 19:41:06,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120455712] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:41:06,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:41:06,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:41:06,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607104404] [2023-08-25 19:41:06,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:41:06,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:41:06,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:41:06,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:41:06,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:41:06,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 663 [2023-08-25 19:41:06,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 46 transitions, 186 flow. Second operand has 4 states, 4 states have (on average 273.25) internal successors, (1093), 4 states have internal predecessors, (1093), 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) [2023-08-25 19:41:06,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:41:06,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 663 [2023-08-25 19:41:06,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:41:06,524 INFO L124 PetriNetUnfolderBase]: 828/1813 cut-off events. [2023-08-25 19:41:06,524 INFO L125 PetriNetUnfolderBase]: For 2441/2473 co-relation queries the response was YES. [2023-08-25 19:41:06,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4766 conditions, 1813 events. 828/1813 cut-off events. For 2441/2473 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 12140 event pairs, 131 based on Foata normal form. 2/1778 useless extension candidates. Maximal degree in co-relation 4752. Up to 718 conditions per place. [2023-08-25 19:41:06,534 INFO L140 encePairwiseOnDemand]: 659/663 looper letters, 37 selfloop transitions, 2 changer transitions 45/95 dead transitions. [2023-08-25 19:41:06,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 95 transitions, 586 flow [2023-08-25 19:41:06,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:41:06,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:41:06,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1395 transitions. [2023-08-25 19:41:06,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42081447963800905 [2023-08-25 19:41:06,538 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1395 transitions. [2023-08-25 19:41:06,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1395 transitions. [2023-08-25 19:41:06,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:41:06,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1395 transitions. [2023-08-25 19:41:06,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 279.0) internal successors, (1395), 5 states have internal predecessors, (1395), 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) [2023-08-25 19:41:06,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 663.0) internal successors, (3978), 6 states have internal predecessors, (3978), 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) [2023-08-25 19:41:06,547 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 663.0) internal successors, (3978), 6 states have internal predecessors, (3978), 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) [2023-08-25 19:41:06,547 INFO L175 Difference]: Start difference. First operand has 69 places, 46 transitions, 186 flow. Second operand 5 states and 1395 transitions. [2023-08-25 19:41:06,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 95 transitions, 586 flow [2023-08-25 19:41:06,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 95 transitions, 557 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-08-25 19:41:06,558 INFO L231 Difference]: Finished difference. Result has 63 places, 39 transitions, 140 flow [2023-08-25 19:41:06,559 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=140, PETRI_PLACES=63, PETRI_TRANSITIONS=39} [2023-08-25 19:41:06,560 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -33 predicate places. [2023-08-25 19:41:06,560 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 39 transitions, 140 flow [2023-08-25 19:41:06,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 273.25) internal successors, (1093), 4 states have internal predecessors, (1093), 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) [2023-08-25 19:41:06,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:41:06,561 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:41:06,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 19:41:06,561 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-25 19:41:06,561 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:41:06,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1667380772, now seen corresponding path program 3 times [2023-08-25 19:41:06,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:41:06,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878928583] [2023-08-25 19:41:06,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:41:06,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:41:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:41:07,301 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 19:41:07,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:41:07,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878928583] [2023-08-25 19:41:07,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878928583] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:41:07,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251276765] [2023-08-25 19:41:07,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-25 19:41:07,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:41:07,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:41:07,303 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:41:07,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-25 19:41:07,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-25 19:41:07,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:41:07,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 31 conjunts are in the unsatisfiable core [2023-08-25 19:41:07,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:41:07,867 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-25 19:41:07,920 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:41:07,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:41:08,052 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:08,052 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 79 [2023-08-25 19:41:08,077 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:08,077 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 19:41:08,300 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:08,301 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 79 treesize of output 95 [2023-08-25 19:41:08,341 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:08,342 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 19:41:08,466 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:41:08,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251276765] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-25 19:41:08,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-25 19:41:08,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 9] total 21 [2023-08-25 19:41:08,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151053979] [2023-08-25 19:41:08,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:41:08,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 19:41:08,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:41:08,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 19:41:08,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2023-08-25 19:41:08,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 663 [2023-08-25 19:41:08,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 39 transitions, 140 flow. Second operand has 7 states, 7 states have (on average 232.57142857142858) internal successors, (1628), 7 states have internal predecessors, (1628), 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) [2023-08-25 19:41:08,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:41:08,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 663 [2023-08-25 19:41:08,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:41:09,295 INFO L124 PetriNetUnfolderBase]: 880/1712 cut-off events. [2023-08-25 19:41:09,295 INFO L125 PetriNetUnfolderBase]: For 3150/3216 co-relation queries the response was YES. [2023-08-25 19:41:09,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4993 conditions, 1712 events. 880/1712 cut-off events. For 3150/3216 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 10091 event pairs, 125 based on Foata normal form. 3/1677 useless extension candidates. Maximal degree in co-relation 4980. Up to 421 conditions per place. [2023-08-25 19:41:09,307 INFO L140 encePairwiseOnDemand]: 652/663 looper letters, 72 selfloop transitions, 16 changer transitions 49/148 dead transitions. [2023-08-25 19:41:09,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 148 transitions, 815 flow [2023-08-25 19:41:09,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-25 19:41:09,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-25 19:41:09,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2654 transitions. [2023-08-25 19:41:09,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36391059920471686 [2023-08-25 19:41:09,314 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2654 transitions. [2023-08-25 19:41:09,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2654 transitions. [2023-08-25 19:41:09,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:41:09,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2654 transitions. [2023-08-25 19:41:09,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 241.27272727272728) internal successors, (2654), 11 states have internal predecessors, (2654), 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) [2023-08-25 19:41:09,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 663.0) internal successors, (7956), 12 states have internal predecessors, (7956), 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) [2023-08-25 19:41:09,329 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 663.0) internal successors, (7956), 12 states have internal predecessors, (7956), 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) [2023-08-25 19:41:09,329 INFO L175 Difference]: Start difference. First operand has 63 places, 39 transitions, 140 flow. Second operand 11 states and 2654 transitions. [2023-08-25 19:41:09,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 148 transitions, 815 flow [2023-08-25 19:41:09,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 148 transitions, 750 flow, removed 21 selfloop flow, removed 8 redundant places. [2023-08-25 19:41:09,337 INFO L231 Difference]: Finished difference. Result has 69 places, 51 transitions, 241 flow [2023-08-25 19:41:09,337 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=241, PETRI_PLACES=69, PETRI_TRANSITIONS=51} [2023-08-25 19:41:09,338 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -27 predicate places. [2023-08-25 19:41:09,338 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 51 transitions, 241 flow [2023-08-25 19:41:09,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 232.57142857142858) internal successors, (1628), 7 states have internal predecessors, (1628), 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) [2023-08-25 19:41:09,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:41:09,338 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:41:09,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-25 19:41:09,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-08-25 19:41:09,546 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-25 19:41:09,546 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:41:09,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1455420808, now seen corresponding path program 4 times [2023-08-25 19:41:09,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:41:09,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590579233] [2023-08-25 19:41:09,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:41:09,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:41:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:41:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-08-25 19:41:10,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:41:10,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590579233] [2023-08-25 19:41:10,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590579233] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:41:10,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:41:10,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 19:41:10,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517666656] [2023-08-25 19:41:10,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:41:10,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 19:41:10,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:41:10,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 19:41:10,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-25 19:41:10,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 663 [2023-08-25 19:41:10,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 51 transitions, 241 flow. Second operand has 8 states, 8 states have (on average 212.125) internal successors, (1697), 8 states have internal predecessors, (1697), 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) [2023-08-25 19:41:10,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:41:10,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 663 [2023-08-25 19:41:10,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:41:10,828 INFO L124 PetriNetUnfolderBase]: 2410/4145 cut-off events. [2023-08-25 19:41:10,828 INFO L125 PetriNetUnfolderBase]: For 8220/8307 co-relation queries the response was YES. [2023-08-25 19:41:10,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12851 conditions, 4145 events. 2410/4145 cut-off events. For 8220/8307 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 26932 event pairs, 365 based on Foata normal form. 2/4067 useless extension candidates. Maximal degree in co-relation 12833. Up to 1845 conditions per place. [2023-08-25 19:41:10,862 INFO L140 encePairwiseOnDemand]: 657/663 looper letters, 71 selfloop transitions, 8 changer transitions 50/132 dead transitions. [2023-08-25 19:41:10,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 132 transitions, 861 flow [2023-08-25 19:41:10,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 19:41:10,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 19:41:10,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1764 transitions. [2023-08-25 19:41:10,867 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.332579185520362 [2023-08-25 19:41:10,867 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1764 transitions. [2023-08-25 19:41:10,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1764 transitions. [2023-08-25 19:41:10,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:41:10,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1764 transitions. [2023-08-25 19:41:10,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 220.5) internal successors, (1764), 8 states have internal predecessors, (1764), 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) [2023-08-25 19:41:10,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 663.0) internal successors, (5967), 9 states have internal predecessors, (5967), 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) [2023-08-25 19:41:10,877 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 663.0) internal successors, (5967), 9 states have internal predecessors, (5967), 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) [2023-08-25 19:41:10,877 INFO L175 Difference]: Start difference. First operand has 69 places, 51 transitions, 241 flow. Second operand 8 states and 1764 transitions. [2023-08-25 19:41:10,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 132 transitions, 861 flow [2023-08-25 19:41:10,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 132 transitions, 847 flow, removed 7 selfloop flow, removed 4 redundant places. [2023-08-25 19:41:10,887 INFO L231 Difference]: Finished difference. Result has 71 places, 55 transitions, 298 flow [2023-08-25 19:41:10,887 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=298, PETRI_PLACES=71, PETRI_TRANSITIONS=55} [2023-08-25 19:41:10,887 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -25 predicate places. [2023-08-25 19:41:10,887 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 55 transitions, 298 flow [2023-08-25 19:41:10,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 212.125) internal successors, (1697), 8 states have internal predecessors, (1697), 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) [2023-08-25 19:41:10,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:41:10,890 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:41:10,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 19:41:10,890 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-25 19:41:10,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:41:10,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1206498728, now seen corresponding path program 5 times [2023-08-25 19:41:10,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:41:10,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560471714] [2023-08-25 19:41:10,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:41:10,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:41:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:41:11,353 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:41:11,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:41:11,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560471714] [2023-08-25 19:41:11,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560471714] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:41:11,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754921984] [2023-08-25 19:41:11,354 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-08-25 19:41:11,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:41:11,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:41:11,355 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:41:11,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-25 19:41:11,741 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2023-08-25 19:41:11,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:41:11,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 27 conjunts are in the unsatisfiable core [2023-08-25 19:41:11,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:41:11,963 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-25 19:41:12,013 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:41:12,013 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:41:12,133 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:12,133 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 79 [2023-08-25 19:41:12,155 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:12,156 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 19:41:12,399 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:41:12,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754921984] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:41:12,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:41:12,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 6] total 18 [2023-08-25 19:41:12,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087858379] [2023-08-25 19:41:12,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:41:12,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-25 19:41:12,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:41:12,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-25 19:41:12,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2023-08-25 19:41:12,404 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 663 [2023-08-25 19:41:12,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 55 transitions, 298 flow. Second operand has 19 states, 19 states have (on average 229.57894736842104) internal successors, (4362), 19 states have internal predecessors, (4362), 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) [2023-08-25 19:41:12,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:41:12,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 663 [2023-08-25 19:41:12,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:41:14,940 INFO L124 PetriNetUnfolderBase]: 3190/6051 cut-off events. [2023-08-25 19:41:14,941 INFO L125 PetriNetUnfolderBase]: For 14973/15208 co-relation queries the response was YES. [2023-08-25 19:41:14,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19018 conditions, 6051 events. 3190/6051 cut-off events. For 14973/15208 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 46036 event pairs, 284 based on Foata normal form. 41/6050 useless extension candidates. Maximal degree in co-relation 19000. Up to 1716 conditions per place. [2023-08-25 19:41:14,974 INFO L140 encePairwiseOnDemand]: 650/663 looper letters, 125 selfloop transitions, 30 changer transitions 323/489 dead transitions. [2023-08-25 19:41:14,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 489 transitions, 3415 flow [2023-08-25 19:41:14,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-08-25 19:41:14,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2023-08-25 19:41:14,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 9662 transitions. [2023-08-25 19:41:14,997 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3554427399477615 [2023-08-25 19:41:14,998 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 9662 transitions. [2023-08-25 19:41:14,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 9662 transitions. [2023-08-25 19:41:15,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:41:15,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 9662 transitions. [2023-08-25 19:41:15,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 235.65853658536585) internal successors, (9662), 41 states have internal predecessors, (9662), 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) [2023-08-25 19:41:15,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 663.0) internal successors, (27846), 42 states have internal predecessors, (27846), 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) [2023-08-25 19:41:15,060 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 663.0) internal successors, (27846), 42 states have internal predecessors, (27846), 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) [2023-08-25 19:41:15,061 INFO L175 Difference]: Start difference. First operand has 71 places, 55 transitions, 298 flow. Second operand 41 states and 9662 transitions. [2023-08-25 19:41:15,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 489 transitions, 3415 flow [2023-08-25 19:41:15,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 489 transitions, 3241 flow, removed 61 selfloop flow, removed 5 redundant places. [2023-08-25 19:41:15,094 INFO L231 Difference]: Finished difference. Result has 139 places, 75 transitions, 680 flow [2023-08-25 19:41:15,094 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=680, PETRI_PLACES=139, PETRI_TRANSITIONS=75} [2023-08-25 19:41:15,095 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, 43 predicate places. [2023-08-25 19:41:15,095 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 75 transitions, 680 flow [2023-08-25 19:41:15,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 229.57894736842104) internal successors, (4362), 19 states have internal predecessors, (4362), 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) [2023-08-25 19:41:15,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:41:15,096 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:41:15,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-25 19:41:15,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:41:15,303 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-25 19:41:15,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:41:15,304 INFO L85 PathProgramCache]: Analyzing trace with hash 865564370, now seen corresponding path program 6 times [2023-08-25 19:41:15,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:41:15,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932641434] [2023-08-25 19:41:15,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:41:15,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:41:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:41:15,700 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 19:41:15,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:41:15,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932641434] [2023-08-25 19:41:15,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932641434] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:41:15,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115430143] [2023-08-25 19:41:15,701 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-08-25 19:41:15,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:41:15,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:41:15,702 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:41:15,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-25 19:41:16,036 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2023-08-25 19:41:16,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-25 19:41:16,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 13 conjunts are in the unsatisfiable core [2023-08-25 19:41:16,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:41:16,141 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 19:41:16,141 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:41:16,245 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 19:41:16,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115430143] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:41:16,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:41:16,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2023-08-25 19:41:16,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600782898] [2023-08-25 19:41:16,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:41:16,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:41:16,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:41:16,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:41:16,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:41:16,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 663 [2023-08-25 19:41:16,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 75 transitions, 680 flow. Second operand has 5 states, 5 states have (on average 274.6) internal successors, (1373), 5 states have internal predecessors, (1373), 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) [2023-08-25 19:41:16,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:41:16,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 663 [2023-08-25 19:41:16,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:41:16,734 INFO L124 PetriNetUnfolderBase]: 1324/2781 cut-off events. [2023-08-25 19:41:16,735 INFO L125 PetriNetUnfolderBase]: For 67228/67540 co-relation queries the response was YES. [2023-08-25 19:41:16,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16249 conditions, 2781 events. 1324/2781 cut-off events. For 67228/67540 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 19512 event pairs, 307 based on Foata normal form. 14/2752 useless extension candidates. Maximal degree in co-relation 16198. Up to 1538 conditions per place. [2023-08-25 19:41:16,767 INFO L140 encePairwiseOnDemand]: 659/663 looper letters, 64 selfloop transitions, 8 changer transitions 46/129 dead transitions. [2023-08-25 19:41:16,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 129 transitions, 1503 flow [2023-08-25 19:41:16,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:41:16,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:41:16,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1384 transitions. [2023-08-25 19:41:16,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41749622926093516 [2023-08-25 19:41:16,770 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1384 transitions. [2023-08-25 19:41:16,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1384 transitions. [2023-08-25 19:41:16,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:41:16,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1384 transitions. [2023-08-25 19:41:16,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 276.8) internal successors, (1384), 5 states have internal predecessors, (1384), 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) [2023-08-25 19:41:16,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 663.0) internal successors, (3978), 6 states have internal predecessors, (3978), 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) [2023-08-25 19:41:16,777 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 663.0) internal successors, (3978), 6 states have internal predecessors, (3978), 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) [2023-08-25 19:41:16,777 INFO L175 Difference]: Start difference. First operand has 139 places, 75 transitions, 680 flow. Second operand 5 states and 1384 transitions. [2023-08-25 19:41:16,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 129 transitions, 1503 flow [2023-08-25 19:41:16,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 129 transitions, 1236 flow, removed 129 selfloop flow, removed 29 redundant places. [2023-08-25 19:41:16,930 INFO L231 Difference]: Finished difference. Result has 90 places, 70 transitions, 526 flow [2023-08-25 19:41:16,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=526, PETRI_PLACES=90, PETRI_TRANSITIONS=70} [2023-08-25 19:41:16,931 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -6 predicate places. [2023-08-25 19:41:16,931 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 70 transitions, 526 flow [2023-08-25 19:41:16,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 274.6) internal successors, (1373), 5 states have internal predecessors, (1373), 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) [2023-08-25 19:41:16,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:41:16,931 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:41:16,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-25 19:41:17,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:41:17,140 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-08-25 19:41:17,140 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:41:17,140 INFO L85 PathProgramCache]: Analyzing trace with hash -985854922, now seen corresponding path program 7 times [2023-08-25 19:41:17,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:41:17,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647155308] [2023-08-25 19:41:17,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:41:17,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:41:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:41:17,629 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 19:41:17,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:41:17,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647155308] [2023-08-25 19:41:17,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647155308] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 19:41:17,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906446997] [2023-08-25 19:41:17,630 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-08-25 19:41:17,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 19:41:17,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:41:17,631 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 19:41:17,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-25 19:41:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:41:17,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 23 conjunts are in the unsatisfiable core [2023-08-25 19:41:17,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 19:41:17,924 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 70 [2023-08-25 19:41:17,939 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:17,940 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 19:41:17,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-25 19:41:17,984 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-25 19:41:18,005 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-25 19:41:18,091 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-08-25 19:41:18,092 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 19:41:18,305 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:18,305 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 63 treesize of output 79 [2023-08-25 19:41:18,333 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:18,333 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2023-08-25 19:41:18,338 WARN L839 $PredicateComparison]: unable to prove that (or (= (mod c_~b2~0 256) 0) (let ((.cse0 (select |c_#memory_int| c_~A~0.base))) (and (or (forall ((thread2Thread1of1ForFork2_~i~1 Int)) (<= c_~max~0 (select .cse0 (+ c_~A~0.offset (* thread2Thread1of1ForFork2_~i~1 4))))) (forall ((v_ArrVal_1403 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1403) c_~A~0.base) c_~A~0.offset) (+ c_~max~0 1)))) (forall ((v_ArrVal_1403 (Array Int Int)) (thread2Thread1of1ForFork2_~i~1 Int)) (let ((.cse1 (select .cse0 (+ c_~A~0.offset (* thread2Thread1of1ForFork2_~i~1 4))))) (or (< .cse1 c_~max~0) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1403) c_~A~0.base) c_~A~0.offset) (+ .cse1 1)))))))) is different from false [2023-08-25 19:41:20,465 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-25 19:41:20,466 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 79 [2023-08-25 19:41:20,472 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2023-08-25 19:41:20,476 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2023-08-25 19:41:20,530 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2023-08-25 19:41:20,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906446997] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 19:41:20,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 19:41:20,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 9] total 23 [2023-08-25 19:41:20,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614585126] [2023-08-25 19:41:20,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 19:41:20,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-08-25 19:41:20,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:41:20,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-08-25 19:41:20,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=450, Unknown=12, NotChecked=44, Total=600 [2023-08-25 19:41:20,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 663 [2023-08-25 19:41:20,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 70 transitions, 526 flow. Second operand has 25 states, 25 states have (on average 224.88) internal successors, (5622), 25 states have internal predecessors, (5622), 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) [2023-08-25 19:41:20,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:41:20,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 663 [2023-08-25 19:41:20,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:41:21,480 INFO L124 PetriNetUnfolderBase]: 1063/2072 cut-off events. [2023-08-25 19:41:21,480 INFO L125 PetriNetUnfolderBase]: For 18426/18604 co-relation queries the response was YES. [2023-08-25 19:41:21,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9414 conditions, 2072 events. 1063/2072 cut-off events. For 18426/18604 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 12782 event pairs, 81 based on Foata normal form. 31/2092 useless extension candidates. Maximal degree in co-relation 9387. Up to 598 conditions per place. [2023-08-25 19:41:21,491 INFO L140 encePairwiseOnDemand]: 653/663 looper letters, 0 selfloop transitions, 0 changer transitions 179/179 dead transitions. [2023-08-25 19:41:21,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 179 transitions, 1550 flow [2023-08-25 19:41:21,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-25 19:41:21,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-25 19:41:21,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3893 transitions. [2023-08-25 19:41:21,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3453996983408748 [2023-08-25 19:41:21,497 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 3893 transitions. [2023-08-25 19:41:21,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 3893 transitions. [2023-08-25 19:41:21,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:41:21,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 3893 transitions. [2023-08-25 19:41:21,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 229.0) internal successors, (3893), 17 states have internal predecessors, (3893), 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) [2023-08-25 19:41:21,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 663.0) internal successors, (11934), 18 states have internal predecessors, (11934), 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) [2023-08-25 19:41:21,515 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 663.0) internal successors, (11934), 18 states have internal predecessors, (11934), 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) [2023-08-25 19:41:21,516 INFO L175 Difference]: Start difference. First operand has 90 places, 70 transitions, 526 flow. Second operand 17 states and 3893 transitions. [2023-08-25 19:41:21,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 179 transitions, 1550 flow [2023-08-25 19:41:21,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 179 transitions, 1452 flow, removed 39 selfloop flow, removed 6 redundant places. [2023-08-25 19:41:21,541 INFO L231 Difference]: Finished difference. Result has 93 places, 0 transitions, 0 flow [2023-08-25 19:41:21,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=663, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=0, PETRI_PLACES=93, PETRI_TRANSITIONS=0} [2023-08-25 19:41:21,541 INFO L281 CegarLoopForPetriNet]: 96 programPoint places, -3 predicate places. [2023-08-25 19:41:21,542 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 0 transitions, 0 flow [2023-08-25 19:41:21,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 224.88) internal successors, (5622), 25 states have internal predecessors, (5622), 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) [2023-08-25 19:41:21,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (85 of 86 remaining) [2023-08-25 19:41:21,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (84 of 86 remaining) [2023-08-25 19:41:21,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (83 of 86 remaining) [2023-08-25 19:41:21,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (82 of 86 remaining) [2023-08-25 19:41:21,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (81 of 86 remaining) [2023-08-25 19:41:21,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (80 of 86 remaining) [2023-08-25 19:41:21,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (79 of 86 remaining) [2023-08-25 19:41:21,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (78 of 86 remaining) [2023-08-25 19:41:21,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (77 of 86 remaining) [2023-08-25 19:41:21,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (76 of 86 remaining) [2023-08-25 19:41:21,548 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (75 of 86 remaining) [2023-08-25 19:41:21,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (74 of 86 remaining) [2023-08-25 19:41:21,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (73 of 86 remaining) [2023-08-25 19:41:21,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (72 of 86 remaining) [2023-08-25 19:41:21,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (71 of 86 remaining) [2023-08-25 19:41:21,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (70 of 86 remaining) [2023-08-25 19:41:21,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (69 of 86 remaining) [2023-08-25 19:41:21,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (68 of 86 remaining) [2023-08-25 19:41:21,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (67 of 86 remaining) [2023-08-25 19:41:21,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (66 of 86 remaining) [2023-08-25 19:41:21,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (65 of 86 remaining) [2023-08-25 19:41:21,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (64 of 86 remaining) [2023-08-25 19:41:21,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (63 of 86 remaining) [2023-08-25 19:41:21,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (62 of 86 remaining) [2023-08-25 19:41:21,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (61 of 86 remaining) [2023-08-25 19:41:21,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (60 of 86 remaining) [2023-08-25 19:41:21,550 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (59 of 86 remaining) [2023-08-25 19:41:21,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (58 of 86 remaining) [2023-08-25 19:41:21,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (57 of 86 remaining) [2023-08-25 19:41:21,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (56 of 86 remaining) [2023-08-25 19:41:21,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (55 of 86 remaining) [2023-08-25 19:41:21,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (54 of 86 remaining) [2023-08-25 19:41:21,551 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (53 of 86 remaining) [2023-08-25 19:41:21,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (52 of 86 remaining) [2023-08-25 19:41:21,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (51 of 86 remaining) [2023-08-25 19:41:21,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (50 of 86 remaining) [2023-08-25 19:41:21,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (49 of 86 remaining) [2023-08-25 19:41:21,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (48 of 86 remaining) [2023-08-25 19:41:21,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (47 of 86 remaining) [2023-08-25 19:41:21,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (46 of 86 remaining) [2023-08-25 19:41:21,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (45 of 86 remaining) [2023-08-25 19:41:21,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (44 of 86 remaining) [2023-08-25 19:41:21,552 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (43 of 86 remaining) [2023-08-25 19:41:21,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (42 of 86 remaining) [2023-08-25 19:41:21,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (41 of 86 remaining) [2023-08-25 19:41:21,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (40 of 86 remaining) [2023-08-25 19:41:21,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (39 of 86 remaining) [2023-08-25 19:41:21,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (38 of 86 remaining) [2023-08-25 19:41:21,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (37 of 86 remaining) [2023-08-25 19:41:21,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (36 of 86 remaining) [2023-08-25 19:41:21,553 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (35 of 86 remaining) [2023-08-25 19:41:21,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (34 of 86 remaining) [2023-08-25 19:41:21,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (33 of 86 remaining) [2023-08-25 19:41:21,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONASSERT (32 of 86 remaining) [2023-08-25 19:41:21,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 86 remaining) [2023-08-25 19:41:21,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 86 remaining) [2023-08-25 19:41:21,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 86 remaining) [2023-08-25 19:41:21,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 86 remaining) [2023-08-25 19:41:21,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 86 remaining) [2023-08-25 19:41:21,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 86 remaining) [2023-08-25 19:41:21,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 86 remaining) [2023-08-25 19:41:21,554 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 86 remaining) [2023-08-25 19:41:21,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (23 of 86 remaining) [2023-08-25 19:41:21,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (22 of 86 remaining) [2023-08-25 19:41:21,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (21 of 86 remaining) [2023-08-25 19:41:21,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (20 of 86 remaining) [2023-08-25 19:41:21,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (19 of 86 remaining) [2023-08-25 19:41:21,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (18 of 86 remaining) [2023-08-25 19:41:21,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (17 of 86 remaining) [2023-08-25 19:41:21,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (16 of 86 remaining) [2023-08-25 19:41:21,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (15 of 86 remaining) [2023-08-25 19:41:21,555 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (14 of 86 remaining) [2023-08-25 19:41:21,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (13 of 86 remaining) [2023-08-25 19:41:21,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (12 of 86 remaining) [2023-08-25 19:41:21,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (11 of 86 remaining) [2023-08-25 19:41:21,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (10 of 86 remaining) [2023-08-25 19:41:21,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (9 of 86 remaining) [2023-08-25 19:41:21,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (8 of 86 remaining) [2023-08-25 19:41:21,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (7 of 86 remaining) [2023-08-25 19:41:21,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (6 of 86 remaining) [2023-08-25 19:41:21,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (5 of 86 remaining) [2023-08-25 19:41:21,556 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (4 of 86 remaining) [2023-08-25 19:41:21,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (3 of 86 remaining) [2023-08-25 19:41:21,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (2 of 86 remaining) [2023-08-25 19:41:21,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (1 of 86 remaining) [2023-08-25 19:41:21,557 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (0 of 86 remaining) [2023-08-25 19:41:21,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-25 19:41:21,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-08-25 19:41:21,764 INFO L445 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:41:21,771 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 19:41:21,771 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 19:41:21,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:41:21 BasicIcfg [2023-08-25 19:41:21,775 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 19:41:21,776 INFO L158 Benchmark]: Toolchain (without parser) took 38100.81ms. Allocated memory was 339.7MB in the beginning and 851.4MB in the end (delta: 511.7MB). Free memory was 315.4MB in the beginning and 730.4MB in the end (delta: -415.0MB). Peak memory consumption was 529.7MB. Max. memory is 16.0GB. [2023-08-25 19:41:21,776 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 339.7MB. Free memory was 316.5MB in the beginning and 316.3MB in the end (delta: 169.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:41:21,776 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.63ms. Allocated memory is still 339.7MB. Free memory was 315.4MB in the beginning and 302.7MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-08-25 19:41:21,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.56ms. Allocated memory is still 339.7MB. Free memory was 301.9MB in the beginning and 299.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:41:21,780 INFO L158 Benchmark]: Boogie Preprocessor took 68.22ms. Allocated memory is still 339.7MB. Free memory was 299.8MB in the beginning and 297.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:41:21,780 INFO L158 Benchmark]: RCFGBuilder took 954.67ms. Allocated memory is still 339.7MB. Free memory was 297.0MB in the beginning and 232.0MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.0GB. [2023-08-25 19:41:21,780 INFO L158 Benchmark]: TraceAbstraction took 36711.18ms. Allocated memory was 339.7MB in the beginning and 851.4MB in the end (delta: 511.7MB). Free memory was 231.4MB in the beginning and 730.4MB in the end (delta: -499.0MB). Peak memory consumption was 445.8MB. Max. memory is 16.0GB. [2023-08-25 19:41:21,782 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 339.7MB. Free memory was 316.5MB in the beginning and 316.3MB in the end (delta: 169.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 296.63ms. Allocated memory is still 339.7MB. Free memory was 315.4MB in the beginning and 302.7MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 64.56ms. Allocated memory is still 339.7MB. Free memory was 301.9MB in the beginning and 299.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 68.22ms. Allocated memory is still 339.7MB. Free memory was 299.8MB in the beginning and 297.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 954.67ms. Allocated memory is still 339.7MB. Free memory was 297.0MB in the beginning and 232.0MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.0GB. * TraceAbstraction took 36711.18ms. Allocated memory was 339.7MB in the beginning and 851.4MB in the end (delta: 511.7MB). Free memory was 231.4MB in the beginning and 730.4MB in the end (delta: -499.0MB). Peak memory consumption was 445.8MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.0s, 305 PlacesBefore, 96 PlacesAfterwards, 310 TransitionsBefore, 91 TransitionsAfterwards, 5184 CoEnabledTransitionPairs, 10 FixpointIterations, 246 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 4 ConcurrentYvCompositions, 10 ChoiceCompositions, 339 TotalNumberOfCompositions, 34871 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13133, independent: 12320, independent conditional: 0, independent unconditional: 12320, dependent: 813, dependent conditional: 0, dependent unconditional: 813, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2356, independent: 2274, independent conditional: 0, independent unconditional: 2274, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13133, independent: 10046, independent conditional: 0, independent unconditional: 10046, dependent: 731, dependent conditional: 0, dependent unconditional: 731, unknown: 2356, unknown conditional: 0, unknown unconditional: 2356] , Statistics on independence cache: Total cache size (in pairs): 549, Positive cache size: 493, Positive conditional cache size: 0, Positive unconditional cache size: 493, Negative cache size: 56, Negative conditional cache size: 0, Negative unconditional cache size: 56, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 126]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 110]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 112]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 114]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 374 locations, 86 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 36.5s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1360 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1360 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 415 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2871 IncrementalHoareTripleChecker+Invalid, 3455 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 169 mSolverCounterUnsat, 6 mSDtfsCounter, 2871 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 531 GetRequests, 335 SyntacticMatches, 8 SemanticMatches, 188 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1581 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=680occurred in iteration=12, InterpolantAutomatonStates: 131, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 573 NumberOfCodeBlocks, 573 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 739 ConstructedInterpolants, 22 QuantifiedInterpolants, 8058 SizeOfPredicates, 103 NumberOfNonLiveVariables, 2240 ConjunctsInSsa, 115 ConjunctsInUnsatCore, 24 InterpolantComputations, 10 PerfectInterpolantSequences, 53/93 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 54 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 19:41:21,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...