/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 18:22:21,804 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 18:22:21,888 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 [2023-08-24 18:22:21,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 18:22:21,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 18:22:21,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 18:22:21,930 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 18:22:21,931 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 18:22:21,931 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 18:22:21,934 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 18:22:21,935 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 18:22:21,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 18:22:21,935 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 18:22:21,936 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 18:22:21,936 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 18:22:21,937 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 18:22:21,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 18:22:21,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 18:22:21,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 18:22:21,937 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 18:22:21,938 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 18:22:21,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 18:22:21,939 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 18:22:21,939 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 18:22:21,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 18:22:21,940 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 18:22:21,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 18:22:21,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:22:21,940 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 18:22:21,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 18:22:21,941 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 18:22:21,941 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 18:22:21,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 18:22:21,942 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 18:22:21,942 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 18:22:21,942 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-24 18:22:22,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 18:22:22,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 18:22:22,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 18:22:22,257 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 18:22:22,257 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 18:22:22,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2023-08-24 18:22:23,383 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 18:22:23,639 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 18:22:23,640 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2023-08-24 18:22:23,654 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5f052c93/fbde4f365ad34a3c99ac1107d754e7e2/FLAG4c880f03d [2023-08-24 18:22:23,667 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5f052c93/fbde4f365ad34a3c99ac1107d754e7e2 [2023-08-24 18:22:23,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 18:22:23,670 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 18:22:23,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 18:22:23,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 18:22:23,673 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 18:22:23,674 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:22:23" (1/1) ... [2023-08-24 18:22:23,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9d9a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:22:23, skipping insertion in model container [2023-08-24 18:22:23,675 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:22:23" (1/1) ... [2023-08-24 18:22:23,712 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 18:22:23,857 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-24 18:22:24,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:22:24,033 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 18:22:24,054 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-24 18:22:24,064 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [269] [2023-08-24 18:22:24,066 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [269] [2023-08-24 18:22:24,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:22:24,131 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 18:22:24,131 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 18:22:24,131 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 18:22:24,138 INFO L206 MainTranslator]: Completed translation [2023-08-24 18:22:24,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:22:24 WrapperNode [2023-08-24 18:22:24,138 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 18:22:24,139 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 18:22:24,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 18:22:24,140 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 18:22:24,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:22:24" (1/1) ... [2023-08-24 18:22:24,177 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:22:24" (1/1) ... [2023-08-24 18:22:24,210 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 181 [2023-08-24 18:22:24,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 18:22:24,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 18:22:24,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 18:22:24,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 18:22:24,220 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:22:24" (1/1) ... [2023-08-24 18:22:24,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:22:24" (1/1) ... [2023-08-24 18:22:24,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:22:24" (1/1) ... [2023-08-24 18:22:24,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:22:24" (1/1) ... [2023-08-24 18:22:24,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:22:24" (1/1) ... [2023-08-24 18:22:24,246 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:22:24" (1/1) ... [2023-08-24 18:22:24,248 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:22:24" (1/1) ... [2023-08-24 18:22:24,260 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:22:24" (1/1) ... [2023-08-24 18:22:24,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 18:22:24,263 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 18:22:24,263 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 18:22:24,263 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 18:22:24,264 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:22:24" (1/1) ... [2023-08-24 18:22:24,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:22:24,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 18:22:24,306 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) [2023-08-24 18:22:24,330 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 [2023-08-24 18:22:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 18:22:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 18:22:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 18:22:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 18:22:24,345 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2023-08-24 18:22:24,345 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2023-08-24 18:22:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 18:22:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 18:22:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 18:22:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 18:22:24,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 18:22:24,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 18:22:24,347 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2023-08-24 18:22:24,348 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2023-08-24 18:22:24,349 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 18:22:24,474 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 18:22:24,477 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 18:22:24,788 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 18:22:24,896 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 18:22:24,896 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 18:22:24,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:22:24 BoogieIcfgContainer [2023-08-24 18:22:24,899 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 18:22:24,901 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 18:22:24,901 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 18:22:24,904 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 18:22:24,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 06:22:23" (1/3) ... [2023-08-24 18:22:24,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d894ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:22:24, skipping insertion in model container [2023-08-24 18:22:24,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:22:24" (2/3) ... [2023-08-24 18:22:24,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d894ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:22:24, skipping insertion in model container [2023-08-24 18:22:24,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:22:24" (3/3) ... [2023-08-24 18:22:24,906 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2023-08-24 18:22:24,921 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 18:22:24,921 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2023-08-24 18:22:24,921 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 18:22:25,021 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-08-24 18:22:25,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 187 places, 178 transitions, 388 flow [2023-08-24 18:22:25,109 INFO L124 PetriNetUnfolderBase]: 4/174 cut-off events. [2023-08-24 18:22:25,110 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-24 18:22:25,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 174 events. 4/174 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 304 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 125. Up to 2 conditions per place. [2023-08-24 18:22:25,116 INFO L82 GeneralOperation]: Start removeDead. Operand has 187 places, 178 transitions, 388 flow [2023-08-24 18:22:25,122 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 161 transitions, 343 flow [2023-08-24 18:22:25,125 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:22:25,133 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 170 places, 161 transitions, 343 flow [2023-08-24 18:22:25,136 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 170 places, 161 transitions, 343 flow [2023-08-24 18:22:25,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 161 transitions, 343 flow [2023-08-24 18:22:25,206 INFO L124 PetriNetUnfolderBase]: 4/161 cut-off events. [2023-08-24 18:22:25,206 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-24 18:22:25,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 161 events. 4/161 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 305 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 125. Up to 2 conditions per place. [2023-08-24 18:22:25,213 INFO L119 LiptonReduction]: Number of co-enabled transitions 10874 [2023-08-24 18:22:28,973 INFO L134 LiptonReduction]: Checked pairs total: 31269 [2023-08-24 18:22:28,973 INFO L136 LiptonReduction]: Total number of compositions: 127 [2023-08-24 18:22:28,985 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:22:28,990 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;@1e37ee01, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:22:28,991 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2023-08-24 18:22:28,993 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:22:28,993 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-08-24 18:22:28,993 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:22:28,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:22:28,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-24 18:22:28,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-24 18:22:28,998 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:22:28,998 INFO L85 PathProgramCache]: Analyzing trace with hash 665953, now seen corresponding path program 1 times [2023-08-24 18:22:29,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:22:29,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894577224] [2023-08-24 18:22:29,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:22:29,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:22:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:22:29,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:22:29,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:22:29,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894577224] [2023-08-24 18:22:29,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894577224] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:22:29,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:22:29,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:22:29,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619520632] [2023-08-24 18:22:29,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:22:29,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:22:29,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:22:29,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:22:29,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:22:29,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 305 [2023-08-24 18:22:29,182 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 71 transitions, 163 flow. Second operand has 2 states, 2 states have (on average 125.5) internal successors, (251), 2 states have internal predecessors, (251), 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) [2023-08-24 18:22:29,182 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:22:29,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 305 [2023-08-24 18:22:29,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:22:30,341 INFO L124 PetriNetUnfolderBase]: 9835/13613 cut-off events. [2023-08-24 18:22:30,341 INFO L125 PetriNetUnfolderBase]: For 1107/1107 co-relation queries the response was YES. [2023-08-24 18:22:30,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27905 conditions, 13613 events. 9835/13613 cut-off events. For 1107/1107 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 71187 event pairs, 9835 based on Foata normal form. 0/12709 useless extension candidates. Maximal degree in co-relation 22493. Up to 13525 conditions per place. [2023-08-24 18:22:30,445 INFO L140 encePairwiseOnDemand]: 275/305 looper letters, 36 selfloop transitions, 0 changer transitions 0/41 dead transitions. [2023-08-24 18:22:30,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 41 transitions, 175 flow [2023-08-24 18:22:30,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:22:30,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:22:30,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 314 transitions. [2023-08-24 18:22:30,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5147540983606558 [2023-08-24 18:22:30,463 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 314 transitions. [2023-08-24 18:22:30,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 314 transitions. [2023-08-24 18:22:30,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:22:30,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 314 transitions. [2023-08-24 18:22:30,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 157.0) internal successors, (314), 2 states have internal predecessors, (314), 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) [2023-08-24 18:22:30,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 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) [2023-08-24 18:22:30,476 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 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) [2023-08-24 18:22:30,478 INFO L175 Difference]: Start difference. First operand has 84 places, 71 transitions, 163 flow. Second operand 2 states and 314 transitions. [2023-08-24 18:22:30,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 41 transitions, 175 flow [2023-08-24 18:22:30,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 41 transitions, 162 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-24 18:22:30,505 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 90 flow [2023-08-24 18:22:30,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=90, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2023-08-24 18:22:30,513 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -36 predicate places. [2023-08-24 18:22:30,513 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 90 flow [2023-08-24 18:22:30,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 125.5) internal successors, (251), 2 states have internal predecessors, (251), 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) [2023-08-24 18:22:30,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:22:30,514 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-24 18:22:30,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 18:22:30,515 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-24 18:22:30,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:22:30,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1634810699, now seen corresponding path program 1 times [2023-08-24 18:22:30,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:22:30,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243741213] [2023-08-24 18:22:30,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:22:30,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:22:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:22:30,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:22:30,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:22:30,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243741213] [2023-08-24 18:22:30,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243741213] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:22:30,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:22:30,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:22:30,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313499045] [2023-08-24 18:22:30,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:22:30,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:22:30,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:22:30,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:22:30,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:22:30,651 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 305 [2023-08-24 18:22:30,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2023-08-24 18:22:30,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:22:30,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 305 [2023-08-24 18:22:30,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:22:33,203 INFO L124 PetriNetUnfolderBase]: 29227/39360 cut-off events. [2023-08-24 18:22:33,204 INFO L125 PetriNetUnfolderBase]: For 420/420 co-relation queries the response was YES. [2023-08-24 18:22:33,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79768 conditions, 39360 events. 29227/39360 cut-off events. For 420/420 co-relation queries the response was YES. Maximal size of possible extension queue 995. Compared 211914 event pairs, 20703 based on Foata normal form. 0/34536 useless extension candidates. Maximal degree in co-relation 79765. Up to 31809 conditions per place. [2023-08-24 18:22:33,421 INFO L140 encePairwiseOnDemand]: 294/305 looper letters, 60 selfloop transitions, 10 changer transitions 0/70 dead transitions. [2023-08-24 18:22:33,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 70 transitions, 292 flow [2023-08-24 18:22:33,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:22:33,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:22:33,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 419 transitions. [2023-08-24 18:22:33,425 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45792349726775955 [2023-08-24 18:22:33,425 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 419 transitions. [2023-08-24 18:22:33,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 419 transitions. [2023-08-24 18:22:33,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:22:33,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 419 transitions. [2023-08-24 18:22:33,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 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) [2023-08-24 18:22:33,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 305.0) internal successors, (1220), 4 states have internal predecessors, (1220), 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) [2023-08-24 18:22:33,431 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 305.0) internal successors, (1220), 4 states have internal predecessors, (1220), 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) [2023-08-24 18:22:33,431 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 90 flow. Second operand 3 states and 419 transitions. [2023-08-24 18:22:33,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 70 transitions, 292 flow [2023-08-24 18:22:33,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 70 transitions, 292 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:22:33,434 INFO L231 Difference]: Finished difference. Result has 52 places, 50 transitions, 168 flow [2023-08-24 18:22:33,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=52, PETRI_TRANSITIONS=50} [2023-08-24 18:22:33,435 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -32 predicate places. [2023-08-24 18:22:33,438 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 50 transitions, 168 flow [2023-08-24 18:22:33,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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) [2023-08-24 18:22:33,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:22:33,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:22:33,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 18:22:33,443 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr7ASSERT_VIOLATIONASSERT === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-24 18:22:33,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:22:33,445 INFO L85 PathProgramCache]: Analyzing trace with hash 448737369, now seen corresponding path program 1 times [2023-08-24 18:22:33,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:22:33,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379135372] [2023-08-24 18:22:33,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:22:33,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:22:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:22:33,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:22:33,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:22:33,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379135372] [2023-08-24 18:22:33,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379135372] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:22:33,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:22:33,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-24 18:22:33,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483006829] [2023-08-24 18:22:33,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:22:33,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-24 18:22:33,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:22:33,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-24 18:22:33,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-24 18:22:33,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 305 [2023-08-24 18:22:33,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 50 transitions, 168 flow. Second operand has 5 states, 5 states have (on average 118.8) internal successors, (594), 5 states have internal predecessors, (594), 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) [2023-08-24 18:22:33,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:22:33,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 305 [2023-08-24 18:22:33,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:22:37,247 INFO L124 PetriNetUnfolderBase]: 38467/55688 cut-off events. [2023-08-24 18:22:37,248 INFO L125 PetriNetUnfolderBase]: For 13880/15318 co-relation queries the response was YES. [2023-08-24 18:22:37,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135968 conditions, 55688 events. 38467/55688 cut-off events. For 13880/15318 co-relation queries the response was YES. Maximal size of possible extension queue 2569. Compared 398495 event pairs, 5916 based on Foata normal form. 496/49186 useless extension candidates. Maximal degree in co-relation 135963. Up to 20210 conditions per place. [2023-08-24 18:22:37,753 INFO L140 encePairwiseOnDemand]: 296/305 looper letters, 178 selfloop transitions, 25 changer transitions 0/210 dead transitions. [2023-08-24 18:22:37,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 210 transitions, 1063 flow [2023-08-24 18:22:37,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-24 18:22:37,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-24 18:22:37,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1111 transitions. [2023-08-24 18:22:37,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.455327868852459 [2023-08-24 18:22:37,757 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1111 transitions. [2023-08-24 18:22:37,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1111 transitions. [2023-08-24 18:22:37,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:22:37,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1111 transitions. [2023-08-24 18:22:37,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 138.875) internal successors, (1111), 8 states have internal predecessors, (1111), 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) [2023-08-24 18:22:37,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 305.0) internal successors, (2745), 9 states have internal predecessors, (2745), 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) [2023-08-24 18:22:37,765 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 305.0) internal successors, (2745), 9 states have internal predecessors, (2745), 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) [2023-08-24 18:22:37,766 INFO L175 Difference]: Start difference. First operand has 52 places, 50 transitions, 168 flow. Second operand 8 states and 1111 transitions. [2023-08-24 18:22:37,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 210 transitions, 1063 flow [2023-08-24 18:22:38,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 210 transitions, 997 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-24 18:22:38,280 INFO L231 Difference]: Finished difference. Result has 63 places, 72 transitions, 328 flow [2023-08-24 18:22:38,280 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=328, PETRI_PLACES=63, PETRI_TRANSITIONS=72} [2023-08-24 18:22:38,281 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -21 predicate places. [2023-08-24 18:22:38,281 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 72 transitions, 328 flow [2023-08-24 18:22:38,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.8) internal successors, (594), 5 states have internal predecessors, (594), 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) [2023-08-24 18:22:38,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:22:38,281 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:22:38,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 18:22:38,282 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-24 18:22:38,282 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:22:38,282 INFO L85 PathProgramCache]: Analyzing trace with hash 877953812, now seen corresponding path program 1 times [2023-08-24 18:22:38,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:22:38,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126540410] [2023-08-24 18:22:38,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:22:38,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:22:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:22:38,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:22:38,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:22:38,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126540410] [2023-08-24 18:22:38,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126540410] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:22:38,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:22:38,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 18:22:38,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460509847] [2023-08-24 18:22:38,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:22:38,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:22:38,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:22:38,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:22:38,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:22:38,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 305 [2023-08-24 18:22:38,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 72 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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) [2023-08-24 18:22:38,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:22:38,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 305 [2023-08-24 18:22:38,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:22:40,067 INFO L124 PetriNetUnfolderBase]: 17448/27367 cut-off events. [2023-08-24 18:22:40,068 INFO L125 PetriNetUnfolderBase]: For 22148/22382 co-relation queries the response was YES. [2023-08-24 18:22:40,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76367 conditions, 27367 events. 17448/27367 cut-off events. For 22148/22382 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 201779 event pairs, 5397 based on Foata normal form. 2962/27655 useless extension candidates. Maximal degree in co-relation 76357. Up to 18151 conditions per place. [2023-08-24 18:22:40,227 INFO L140 encePairwiseOnDemand]: 299/305 looper letters, 91 selfloop transitions, 5 changer transitions 0/102 dead transitions. [2023-08-24 18:22:40,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 102 transitions, 655 flow [2023-08-24 18:22:40,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:22:40,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:22:40,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 432 transitions. [2023-08-24 18:22:40,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4721311475409836 [2023-08-24 18:22:40,230 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 432 transitions. [2023-08-24 18:22:40,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 432 transitions. [2023-08-24 18:22:40,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:22:40,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 432 transitions. [2023-08-24 18:22:40,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 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) [2023-08-24 18:22:40,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 305.0) internal successors, (1220), 4 states have internal predecessors, (1220), 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) [2023-08-24 18:22:40,234 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 305.0) internal successors, (1220), 4 states have internal predecessors, (1220), 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) [2023-08-24 18:22:40,234 INFO L175 Difference]: Start difference. First operand has 63 places, 72 transitions, 328 flow. Second operand 3 states and 432 transitions. [2023-08-24 18:22:40,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 102 transitions, 655 flow [2023-08-24 18:22:40,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 102 transitions, 655 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:22:40,351 INFO L231 Difference]: Finished difference. Result has 66 places, 71 transitions, 343 flow [2023-08-24 18:22:40,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=66, PETRI_TRANSITIONS=71} [2023-08-24 18:22:40,352 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -18 predicate places. [2023-08-24 18:22:40,352 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 71 transitions, 343 flow [2023-08-24 18:22:40,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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) [2023-08-24 18:22:40,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:22:40,353 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:22:40,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 18:22:40,353 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-24 18:22:40,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:22:40,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1162145864, now seen corresponding path program 2 times [2023-08-24 18:22:40,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:22:40,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018637612] [2023-08-24 18:22:40,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:22:40,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:22:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:22:40,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:22:40,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:22:40,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018637612] [2023-08-24 18:22:40,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018637612] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:22:40,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:22:40,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-24 18:22:40,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940732688] [2023-08-24 18:22:40,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:22:40,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-24 18:22:40,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:22:40,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-24 18:22:40,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-24 18:22:40,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 305 [2023-08-24 18:22:40,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 71 transitions, 343 flow. Second operand has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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) [2023-08-24 18:22:40,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:22:40,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 305 [2023-08-24 18:22:40,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:22:41,110 INFO L124 PetriNetUnfolderBase]: 3781/6858 cut-off events. [2023-08-24 18:22:41,110 INFO L125 PetriNetUnfolderBase]: For 8767/8781 co-relation queries the response was YES. [2023-08-24 18:22:41,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19974 conditions, 6858 events. 3781/6858 cut-off events. For 8767/8781 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 47441 event pairs, 1236 based on Foata normal form. 745/7260 useless extension candidates. Maximal degree in co-relation 19962. Up to 2988 conditions per place. [2023-08-24 18:22:41,133 INFO L140 encePairwiseOnDemand]: 298/305 looper letters, 120 selfloop transitions, 9 changer transitions 5/140 dead transitions. [2023-08-24 18:22:41,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 140 transitions, 904 flow [2023-08-24 18:22:41,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-24 18:22:41,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-24 18:22:41,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 587 transitions. [2023-08-24 18:22:41,134 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48114754098360657 [2023-08-24 18:22:41,135 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 587 transitions. [2023-08-24 18:22:41,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 587 transitions. [2023-08-24 18:22:41,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:22:41,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 587 transitions. [2023-08-24 18:22:41,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 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) [2023-08-24 18:22:41,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 305.0) internal successors, (1525), 5 states have internal predecessors, (1525), 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) [2023-08-24 18:22:41,139 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 305.0) internal successors, (1525), 5 states have internal predecessors, (1525), 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) [2023-08-24 18:22:41,139 INFO L175 Difference]: Start difference. First operand has 66 places, 71 transitions, 343 flow. Second operand 4 states and 587 transitions. [2023-08-24 18:22:41,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 140 transitions, 904 flow [2023-08-24 18:22:41,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 140 transitions, 882 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-24 18:22:41,164 INFO L231 Difference]: Finished difference. Result has 70 places, 77 transitions, 392 flow [2023-08-24 18:22:41,164 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=392, PETRI_PLACES=70, PETRI_TRANSITIONS=77} [2023-08-24 18:22:41,164 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -14 predicate places. [2023-08-24 18:22:41,165 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 77 transitions, 392 flow [2023-08-24 18:22:41,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 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) [2023-08-24 18:22:41,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:22:41,165 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:22:41,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 18:22:41,165 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-24 18:22:41,166 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:22:41,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1868960066, now seen corresponding path program 1 times [2023-08-24 18:22:41,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:22:41,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105567692] [2023-08-24 18:22:41,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:22:41,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:22:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:22:41,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:22:41,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:22:41,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105567692] [2023-08-24 18:22:41,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105567692] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:22:41,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:22:41,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:22:41,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634778043] [2023-08-24 18:22:41,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:22:41,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:22:41,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:22:41,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:22:41,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:22:41,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 305 [2023-08-24 18:22:41,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 77 transitions, 392 flow. Second operand has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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) [2023-08-24 18:22:41,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:22:41,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 305 [2023-08-24 18:22:41,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:22:41,737 INFO L124 PetriNetUnfolderBase]: 4484/7787 cut-off events. [2023-08-24 18:22:41,737 INFO L125 PetriNetUnfolderBase]: For 9910/9910 co-relation queries the response was YES. [2023-08-24 18:22:41,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24420 conditions, 7787 events. 4484/7787 cut-off events. For 9910/9910 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 50863 event pairs, 3308 based on Foata normal form. 0/7335 useless extension candidates. Maximal degree in co-relation 24406. Up to 7422 conditions per place. [2023-08-24 18:22:41,772 INFO L140 encePairwiseOnDemand]: 296/305 looper letters, 85 selfloop transitions, 9 changer transitions 6/100 dead transitions. [2023-08-24 18:22:41,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 100 transitions, 697 flow [2023-08-24 18:22:41,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:22:41,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:22:41,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 410 transitions. [2023-08-24 18:22:41,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44808743169398907 [2023-08-24 18:22:41,774 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 410 transitions. [2023-08-24 18:22:41,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 410 transitions. [2023-08-24 18:22:41,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:22:41,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 410 transitions. [2023-08-24 18:22:41,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2023-08-24 18:22:41,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 305.0) internal successors, (1220), 4 states have internal predecessors, (1220), 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) [2023-08-24 18:22:41,778 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 305.0) internal successors, (1220), 4 states have internal predecessors, (1220), 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) [2023-08-24 18:22:41,778 INFO L175 Difference]: Start difference. First operand has 70 places, 77 transitions, 392 flow. Second operand 3 states and 410 transitions. [2023-08-24 18:22:41,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 100 transitions, 697 flow [2023-08-24 18:22:41,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 100 transitions, 697 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:22:41,798 INFO L231 Difference]: Finished difference. Result has 73 places, 81 transitions, 460 flow [2023-08-24 18:22:41,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=73, PETRI_TRANSITIONS=81} [2023-08-24 18:22:41,799 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -11 predicate places. [2023-08-24 18:22:41,799 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 81 transitions, 460 flow [2023-08-24 18:22:41,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.33333333333333) internal successors, (358), 3 states have internal predecessors, (358), 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) [2023-08-24 18:22:41,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:22:41,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:22:41,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 18:22:41,800 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr7ASSERT_VIOLATIONASSERT === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-24 18:22:41,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:22:41,800 INFO L85 PathProgramCache]: Analyzing trace with hash -606037705, now seen corresponding path program 1 times [2023-08-24 18:22:41,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:22:41,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078871437] [2023-08-24 18:22:41,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:22:41,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:22:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:22:41,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:22:41,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:22:41,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078871437] [2023-08-24 18:22:41,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078871437] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:22:41,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:22:41,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-24 18:22:41,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834634817] [2023-08-24 18:22:41,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:22:41,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-24 18:22:41,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:22:41,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-24 18:22:41,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-24 18:22:41,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 305 [2023-08-24 18:22:41,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 81 transitions, 460 flow. Second operand has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:22:41,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:22:41,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 305 [2023-08-24 18:22:41,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:22:42,533 INFO L124 PetriNetUnfolderBase]: 4100/7497 cut-off events. [2023-08-24 18:22:42,533 INFO L125 PetriNetUnfolderBase]: For 11890/12127 co-relation queries the response was YES. [2023-08-24 18:22:42,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25166 conditions, 7497 events. 4100/7497 cut-off events. For 11890/12127 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 52915 event pairs, 769 based on Foata normal form. 116/7407 useless extension candidates. Maximal degree in co-relation 25150. Up to 3275 conditions per place. [2023-08-24 18:22:42,558 INFO L140 encePairwiseOnDemand]: 296/305 looper letters, 163 selfloop transitions, 36 changer transitions 24/229 dead transitions. [2023-08-24 18:22:42,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 229 transitions, 1646 flow [2023-08-24 18:22:42,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-24 18:22:42,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-24 18:22:42,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1091 transitions. [2023-08-24 18:22:42,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4471311475409836 [2023-08-24 18:22:42,562 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1091 transitions. [2023-08-24 18:22:42,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1091 transitions. [2023-08-24 18:22:42,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:22:42,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1091 transitions. [2023-08-24 18:22:42,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.375) internal successors, (1091), 8 states have internal predecessors, (1091), 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) [2023-08-24 18:22:42,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 305.0) internal successors, (2745), 9 states have internal predecessors, (2745), 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) [2023-08-24 18:22:42,568 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 305.0) internal successors, (2745), 9 states have internal predecessors, (2745), 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) [2023-08-24 18:22:42,568 INFO L175 Difference]: Start difference. First operand has 73 places, 81 transitions, 460 flow. Second operand 8 states and 1091 transitions. [2023-08-24 18:22:42,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 229 transitions, 1646 flow [2023-08-24 18:22:42,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 229 transitions, 1614 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-08-24 18:22:42,593 INFO L231 Difference]: Finished difference. Result has 84 places, 108 transitions, 756 flow [2023-08-24 18:22:42,594 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=756, PETRI_PLACES=84, PETRI_TRANSITIONS=108} [2023-08-24 18:22:42,594 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 0 predicate places. [2023-08-24 18:22:42,594 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 108 transitions, 756 flow [2023-08-24 18:22:42,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:22:42,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:22:42,595 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:22:42,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 18:22:42,595 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting readerErr7ASSERT_VIOLATIONASSERT === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-24 18:22:42,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:22:42,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2070557108, now seen corresponding path program 1 times [2023-08-24 18:22:42,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:22:42,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723954983] [2023-08-24 18:22:42,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:22:42,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:22:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:22:42,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:22:42,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:22:42,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723954983] [2023-08-24 18:22:42,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723954983] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:22:42,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:22:42,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-24 18:22:42,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108922203] [2023-08-24 18:22:42,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:22:42,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-24 18:22:42,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:22:42,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-24 18:22:42,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-24 18:22:42,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 305 [2023-08-24 18:22:42,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 108 transitions, 756 flow. Second operand has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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) [2023-08-24 18:22:42,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:22:42,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 305 [2023-08-24 18:22:42,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:22:43,454 INFO L124 PetriNetUnfolderBase]: 3914/7237 cut-off events. [2023-08-24 18:22:43,454 INFO L125 PetriNetUnfolderBase]: For 18067/18251 co-relation queries the response was YES. [2023-08-24 18:22:43,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27158 conditions, 7237 events. 3914/7237 cut-off events. For 18067/18251 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 51437 event pairs, 557 based on Foata normal form. 152/7315 useless extension candidates. Maximal degree in co-relation 27138. Up to 2744 conditions per place. [2023-08-24 18:22:43,484 INFO L140 encePairwiseOnDemand]: 296/305 looper letters, 151 selfloop transitions, 50 changer transitions 25/232 dead transitions. [2023-08-24 18:22:43,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 232 transitions, 1861 flow [2023-08-24 18:22:43,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-24 18:22:43,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-24 18:22:43,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1090 transitions. [2023-08-24 18:22:43,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44672131147540983 [2023-08-24 18:22:43,487 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1090 transitions. [2023-08-24 18:22:43,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1090 transitions. [2023-08-24 18:22:43,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:22:43,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1090 transitions. [2023-08-24 18:22:43,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.25) internal successors, (1090), 8 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) [2023-08-24 18:22:43,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 305.0) internal successors, (2745), 9 states have internal predecessors, (2745), 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) [2023-08-24 18:22:43,494 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 305.0) internal successors, (2745), 9 states have internal predecessors, (2745), 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) [2023-08-24 18:22:43,494 INFO L175 Difference]: Start difference. First operand has 84 places, 108 transitions, 756 flow. Second operand 8 states and 1090 transitions. [2023-08-24 18:22:43,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 232 transitions, 1861 flow [2023-08-24 18:22:43,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 232 transitions, 1855 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-24 18:22:43,524 INFO L231 Difference]: Finished difference. Result has 94 places, 121 transitions, 1012 flow [2023-08-24 18:22:43,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1012, PETRI_PLACES=94, PETRI_TRANSITIONS=121} [2023-08-24 18:22:43,525 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 10 predicate places. [2023-08-24 18:22:43,525 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 121 transitions, 1012 flow [2023-08-24 18:22:43,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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) [2023-08-24 18:22:43,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:22:43,526 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:22:43,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 18:22:43,526 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting readerErr7ASSERT_VIOLATIONASSERT === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-24 18:22:43,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:22:43,526 INFO L85 PathProgramCache]: Analyzing trace with hash -2046512025, now seen corresponding path program 1 times [2023-08-24 18:22:43,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:22:43,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567586287] [2023-08-24 18:22:43,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:22:43,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:22:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:22:43,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:22:43,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:22:43,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567586287] [2023-08-24 18:22:43,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567586287] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:22:43,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:22:43,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-24 18:22:43,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009281351] [2023-08-24 18:22:43,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:22:43,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-24 18:22:43,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:22:43,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-24 18:22:43,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-24 18:22:43,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 305 [2023-08-24 18:22:43,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 121 transitions, 1012 flow. Second operand has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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) [2023-08-24 18:22:43,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:22:43,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 305 [2023-08-24 18:22:43,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:22:44,350 INFO L124 PetriNetUnfolderBase]: 3808/7074 cut-off events. [2023-08-24 18:22:44,350 INFO L125 PetriNetUnfolderBase]: For 22255/22428 co-relation queries the response was YES. [2023-08-24 18:22:44,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27878 conditions, 7074 events. 3808/7074 cut-off events. For 22255/22428 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 50244 event pairs, 643 based on Foata normal form. 151/7151 useless extension candidates. Maximal degree in co-relation 27854. Up to 2780 conditions per place. [2023-08-24 18:22:44,373 INFO L140 encePairwiseOnDemand]: 296/305 looper letters, 151 selfloop transitions, 55 changer transitions 33/245 dead transitions. [2023-08-24 18:22:44,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 245 transitions, 2160 flow [2023-08-24 18:22:44,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-24 18:22:44,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-24 18:22:44,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1092 transitions. [2023-08-24 18:22:44,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44754098360655736 [2023-08-24 18:22:44,376 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1092 transitions. [2023-08-24 18:22:44,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1092 transitions. [2023-08-24 18:22:44,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:22:44,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1092 transitions. [2023-08-24 18:22:44,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.5) internal successors, (1092), 8 states have internal predecessors, (1092), 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) [2023-08-24 18:22:44,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 305.0) internal successors, (2745), 9 states have internal predecessors, (2745), 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) [2023-08-24 18:22:44,382 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 305.0) internal successors, (2745), 9 states have internal predecessors, (2745), 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) [2023-08-24 18:22:44,382 INFO L175 Difference]: Start difference. First operand has 94 places, 121 transitions, 1012 flow. Second operand 8 states and 1092 transitions. [2023-08-24 18:22:44,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 245 transitions, 2160 flow [2023-08-24 18:22:44,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 245 transitions, 2150 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-24 18:22:44,430 INFO L231 Difference]: Finished difference. Result has 103 places, 130 transitions, 1251 flow [2023-08-24 18:22:44,430 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1003, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1251, PETRI_PLACES=103, PETRI_TRANSITIONS=130} [2023-08-24 18:22:44,431 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 19 predicate places. [2023-08-24 18:22:44,431 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 130 transitions, 1251 flow [2023-08-24 18:22:44,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 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) [2023-08-24 18:22:44,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:22:44,432 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] [2023-08-24 18:22:44,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-24 18:22:44,432 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-24 18:22:44,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:22:44,432 INFO L85 PathProgramCache]: Analyzing trace with hash -2090342420, now seen corresponding path program 1 times [2023-08-24 18:22:44,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:22:44,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732080026] [2023-08-24 18:22:44,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:22:44,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:22:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:22:44,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:22:44,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:22:44,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732080026] [2023-08-24 18:22:44,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732080026] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:22:44,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:22:44,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-24 18:22:44,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270397243] [2023-08-24 18:22:44,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:22:44,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-24 18:22:44,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:22:44,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-24 18:22:44,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-24 18:22:44,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 305 [2023-08-24 18:22:44,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 130 transitions, 1251 flow. Second operand has 5 states, 5 states have (on average 126.6) internal successors, (633), 5 states have internal predecessors, (633), 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) [2023-08-24 18:22:44,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:22:44,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 305 [2023-08-24 18:22:44,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:22:45,137 INFO L124 PetriNetUnfolderBase]: 3523/6764 cut-off events. [2023-08-24 18:22:45,138 INFO L125 PetriNetUnfolderBase]: For 26862/27024 co-relation queries the response was YES. [2023-08-24 18:22:45,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27793 conditions, 6764 events. 3523/6764 cut-off events. For 26862/27024 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 49622 event pairs, 1141 based on Foata normal form. 276/6967 useless extension candidates. Maximal degree in co-relation 27765. Up to 3054 conditions per place. [2023-08-24 18:22:45,169 INFO L140 encePairwiseOnDemand]: 298/305 looper letters, 123 selfloop transitions, 9 changer transitions 68/206 dead transitions. [2023-08-24 18:22:45,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 206 transitions, 2221 flow [2023-08-24 18:22:45,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-24 18:22:45,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-24 18:22:45,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 717 transitions. [2023-08-24 18:22:45,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4701639344262295 [2023-08-24 18:22:45,171 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 717 transitions. [2023-08-24 18:22:45,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 717 transitions. [2023-08-24 18:22:45,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:22:45,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 717 transitions. [2023-08-24 18:22:45,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.4) internal successors, (717), 5 states have internal predecessors, (717), 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) [2023-08-24 18:22:45,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 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) [2023-08-24 18:22:45,175 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 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) [2023-08-24 18:22:45,175 INFO L175 Difference]: Start difference. First operand has 103 places, 130 transitions, 1251 flow. Second operand 5 states and 717 transitions. [2023-08-24 18:22:45,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 206 transitions, 2221 flow [2023-08-24 18:22:45,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 206 transitions, 2206 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-24 18:22:45,251 INFO L231 Difference]: Finished difference. Result has 107 places, 108 transitions, 976 flow [2023-08-24 18:22:45,251 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=976, PETRI_PLACES=107, PETRI_TRANSITIONS=108} [2023-08-24 18:22:45,251 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, 23 predicate places. [2023-08-24 18:22:45,251 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 108 transitions, 976 flow [2023-08-24 18:22:45,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 126.6) internal successors, (633), 5 states have internal predecessors, (633), 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) [2023-08-24 18:22:45,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:22:45,252 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:22:45,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-24 18:22:45,252 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-08-24 18:22:45,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:22:45,253 INFO L85 PathProgramCache]: Analyzing trace with hash 318486444, now seen corresponding path program 2 times [2023-08-24 18:22:45,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:22:45,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880398959] [2023-08-24 18:22:45,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:22:45,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:22:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:22:45,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:22:45,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:22:45,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880398959] [2023-08-24 18:22:45,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880398959] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:22:45,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:22:45,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-24 18:22:45,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524900591] [2023-08-24 18:22:45,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:22:45,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-24 18:22:45,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:22:45,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-24 18:22:45,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-24 18:22:45,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 305 [2023-08-24 18:22:45,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 108 transitions, 976 flow. Second operand has 5 states, 5 states have (on average 126.6) internal successors, (633), 5 states have internal predecessors, (633), 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) [2023-08-24 18:22:45,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:22:45,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 305 [2023-08-24 18:22:45,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:22:45,483 INFO L124 PetriNetUnfolderBase]: 597/1430 cut-off events. [2023-08-24 18:22:45,484 INFO L125 PetriNetUnfolderBase]: For 5288/5299 co-relation queries the response was YES. [2023-08-24 18:22:45,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5865 conditions, 1430 events. 597/1430 cut-off events. For 5288/5299 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 8575 event pairs, 167 based on Foata normal form. 96/1523 useless extension candidates. Maximal degree in co-relation 5835. Up to 758 conditions per place. [2023-08-24 18:22:45,488 INFO L140 encePairwiseOnDemand]: 298/305 looper letters, 0 selfloop transitions, 0 changer transitions 77/77 dead transitions. [2023-08-24 18:22:45,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 77 transitions, 631 flow [2023-08-24 18:22:45,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-24 18:22:45,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-24 18:22:45,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 677 transitions. [2023-08-24 18:22:45,490 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4439344262295082 [2023-08-24 18:22:45,490 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 677 transitions. [2023-08-24 18:22:45,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 677 transitions. [2023-08-24 18:22:45,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:22:45,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 677 transitions. [2023-08-24 18:22:45,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 135.4) internal successors, (677), 5 states have internal predecessors, (677), 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) [2023-08-24 18:22:45,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 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) [2023-08-24 18:22:45,493 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 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) [2023-08-24 18:22:45,493 INFO L175 Difference]: Start difference. First operand has 107 places, 108 transitions, 976 flow. Second operand 5 states and 677 transitions. [2023-08-24 18:22:45,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 77 transitions, 631 flow [2023-08-24 18:22:45,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 77 transitions, 472 flow, removed 24 selfloop flow, removed 29 redundant places. [2023-08-24 18:22:45,502 INFO L231 Difference]: Finished difference. Result has 75 places, 0 transitions, 0 flow [2023-08-24 18:22:45,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=75, PETRI_TRANSITIONS=0} [2023-08-24 18:22:45,503 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -9 predicate places. [2023-08-24 18:22:45,503 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 0 transitions, 0 flow [2023-08-24 18:22:45,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 126.6) internal successors, (633), 5 states have internal predecessors, (633), 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) [2023-08-24 18:22:45,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (52 of 53 remaining) [2023-08-24 18:22:45,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2023-08-24 18:22:45,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2023-08-24 18:22:45,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2023-08-24 18:22:45,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2023-08-24 18:22:45,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2023-08-24 18:22:45,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2023-08-24 18:22:45,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2023-08-24 18:22:45,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr9ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2023-08-24 18:22:45,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONASSERT (43 of 53 remaining) [2023-08-24 18:22:45,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2023-08-24 18:22:45,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2023-08-24 18:22:45,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2023-08-24 18:22:45,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2023-08-24 18:22:45,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 53 remaining) [2023-08-24 18:22:45,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 53 remaining) [2023-08-24 18:22:45,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 53 remaining) [2023-08-24 18:22:45,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 53 remaining) [2023-08-24 18:22:45,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2023-08-24 18:22:45,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2023-08-24 18:22:45,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2023-08-24 18:22:45,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2023-08-24 18:22:45,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2023-08-24 18:22:45,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2023-08-24 18:22:45,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2023-08-24 18:22:45,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2023-08-24 18:22:45,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2023-08-24 18:22:45,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2023-08-24 18:22:45,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2023-08-24 18:22:45,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2023-08-24 18:22:45,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2023-08-24 18:22:45,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr9ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2023-08-24 18:22:45,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONASSERT (20 of 53 remaining) [2023-08-24 18:22:45,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2023-08-24 18:22:45,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2023-08-24 18:22:45,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2023-08-24 18:22:45,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2023-08-24 18:22:45,511 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2023-08-24 18:22:45,512 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2023-08-24 18:22:45,512 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2023-08-24 18:22:45,512 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2023-08-24 18:22:45,512 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr9ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2023-08-24 18:22:45,512 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONASSERT (10 of 53 remaining) [2023-08-24 18:22:45,512 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2023-08-24 18:22:45,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2023-08-24 18:22:45,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2023-08-24 18:22:45,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2023-08-24 18:22:45,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2023-08-24 18:22:45,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2023-08-24 18:22:45,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2023-08-24 18:22:45,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2023-08-24 18:22:45,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2023-08-24 18:22:45,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2023-08-24 18:22:45,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-24 18:22:45,514 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:22:45,519 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 18:22:45,519 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 18:22:45,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 06:22:45 BasicIcfg [2023-08-24 18:22:45,521 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 18:22:45,521 INFO L158 Benchmark]: Toolchain (without parser) took 21851.32ms. Allocated memory was 379.6MB in the beginning and 7.1GB in the end (delta: 6.7GB). Free memory was 353.9MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 1.3GB. Max. memory is 16.0GB. [2023-08-24 18:22:45,522 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 379.6MB. Free memory was 357.2MB in the beginning and 357.1MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 18:22:45,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.59ms. Allocated memory is still 379.6MB. Free memory was 353.9MB in the beginning and 332.1MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-24 18:22:45,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.29ms. Allocated memory is still 379.6MB. Free memory was 332.1MB in the beginning and 329.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 18:22:45,522 INFO L158 Benchmark]: Boogie Preprocessor took 50.60ms. Allocated memory is still 379.6MB. Free memory was 329.5MB in the beginning and 327.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 18:22:45,523 INFO L158 Benchmark]: RCFGBuilder took 635.69ms. Allocated memory is still 379.6MB. Free memory was 327.8MB in the beginning and 298.6MB in the end (delta: 29.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-24 18:22:45,523 INFO L158 Benchmark]: TraceAbstraction took 20620.33ms. Allocated memory was 379.6MB in the beginning and 7.1GB in the end (delta: 6.7GB). Free memory was 298.1MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 1.3GB. Max. memory is 16.0GB. [2023-08-24 18:22:45,524 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 379.6MB. Free memory was 357.2MB in the beginning and 357.1MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 467.59ms. Allocated memory is still 379.6MB. Free memory was 353.9MB in the beginning and 332.1MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 71.29ms. Allocated memory is still 379.6MB. Free memory was 332.1MB in the beginning and 329.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 50.60ms. Allocated memory is still 379.6MB. Free memory was 329.5MB in the beginning and 327.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 635.69ms. Allocated memory is still 379.6MB. Free memory was 327.8MB in the beginning and 298.6MB in the end (delta: 29.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 20620.33ms. Allocated memory was 379.6MB in the beginning and 7.1GB in the end (delta: 6.7GB). Free memory was 298.1MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 1.3GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 269]: Unsoundness Warning unspecified type, defaulting to int C: short [269] - GenericResultAtLocation [Line: 269]: Unsoundness Warning unspecified type, defaulting to int C: short [269] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 170 PlacesBefore, 84 PlacesAfterwards, 161 TransitionsBefore, 71 TransitionsAfterwards, 10874 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 102 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 4 ChoiceCompositions, 127 TotalNumberOfCompositions, 31269 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15221, independent: 14838, independent conditional: 0, independent unconditional: 14838, dependent: 383, dependent conditional: 0, dependent unconditional: 383, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5318, independent: 5243, independent conditional: 0, independent unconditional: 5243, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15221, independent: 9595, independent conditional: 0, independent unconditional: 9595, dependent: 308, dependent conditional: 0, dependent unconditional: 308, unknown: 5318, unknown conditional: 0, unknown unconditional: 5318] , Statistics on independence cache: Total cache size (in pairs): 776, Positive cache size: 730, Positive conditional cache size: 0, Positive unconditional cache size: 730, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 734]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 16]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 749]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 751]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 222 locations, 53 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: 20.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 15.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 631 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 631 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2028 IncrementalHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 10 mSDtfsCounter, 2028 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1251occurred in iteration=9, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 236 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 19 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-24 18:22:45,547 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...