/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/array-eq-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 18:45:30,690 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 18:45:30,734 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 18:45:30,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 18:45:30,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 18:45:30,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 18:45:30,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 18:45:30,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 18:45:30,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 18:45:30,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 18:45:30,752 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 18:45:30,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 18:45:30,753 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 18:45:30,753 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 18:45:30,753 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 18:45:30,753 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 18:45:30,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 18:45:30,754 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 18:45:30,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 18:45:30,754 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 18:45:30,754 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 18:45:30,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 18:45:30,755 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 18:45:30,755 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 18:45:30,755 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 18:45:30,756 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 18:45:30,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 18:45:30,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 18:45:30,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 18:45:30,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 18:45:30,757 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 18:45:30,757 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 18:45:30,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 18:45:30,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 18:45:30,758 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 18:45:30,758 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 18:45:30,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 18:45:30,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 18:45:30,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 18:45:30,980 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 18:45:30,980 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 18:45:30,982 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/array-eq-trans.wvr.c [2023-08-25 18:45:31,950 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 18:45:32,115 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 18:45:32,115 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/array-eq-trans.wvr.c [2023-08-25 18:45:32,122 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a796f661/041cbccab89a466cb3fc17b4d0d15b60/FLAG0f3517137 [2023-08-25 18:45:32,135 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a796f661/041cbccab89a466cb3fc17b4d0d15b60 [2023-08-25 18:45:32,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 18:45:32,140 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 18:45:32,141 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 18:45:32,141 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 18:45:32,143 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 18:45:32,144 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:45:32" (1/1) ... [2023-08-25 18:45:32,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bcd4dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:45:32, skipping insertion in model container [2023-08-25 18:45:32,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 06:45:32" (1/1) ... [2023-08-25 18:45:32,165 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 18:45:32,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 18:45:32,346 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 18:45:32,371 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 18:45:32,381 INFO L206 MainTranslator]: Completed translation [2023-08-25 18:45:32,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:45:32 WrapperNode [2023-08-25 18:45:32,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 18:45:32,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 18:45:32,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 18:45:32,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 18:45:32,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:45:32" (1/1) ... [2023-08-25 18:45:32,396 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:45:32" (1/1) ... [2023-08-25 18:45:32,426 INFO L138 Inliner]: procedures = 24, calls = 47, calls flagged for inlining = 11, calls inlined = 15, statements flattened = 359 [2023-08-25 18:45:32,427 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 18:45:32,427 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 18:45:32,427 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 18:45:32,427 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 18:45:32,433 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:45:32" (1/1) ... [2023-08-25 18:45:32,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:45:32" (1/1) ... [2023-08-25 18:45:32,438 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:45:32" (1/1) ... [2023-08-25 18:45:32,438 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:45:32" (1/1) ... [2023-08-25 18:45:32,460 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:45:32" (1/1) ... [2023-08-25 18:45:32,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:45:32" (1/1) ... [2023-08-25 18:45:32,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:45:32" (1/1) ... [2023-08-25 18:45:32,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:45:32" (1/1) ... [2023-08-25 18:45:32,476 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 18:45:32,477 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 18:45:32,477 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 18:45:32,477 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 18:45:32,478 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:45:32" (1/1) ... [2023-08-25 18:45:32,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 18:45:32,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 18:45:32,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 18:45:32,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 18:45:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 18:45:32,531 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 18:45:32,531 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 18:45:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 18:45:32,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 18:45:32,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 18:45:32,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 18:45:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 18:45:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 18:45:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 18:45:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 18:45:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 18:45:32,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 18:45:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 18:45:32,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 18:45:32,535 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 18:45:32,653 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 18:45:32,655 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 18:45:33,240 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 18:45:33,255 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 18:45:33,256 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-08-25 18:45:33,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:45:33 BoogieIcfgContainer [2023-08-25 18:45:33,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 18:45:33,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 18:45:33,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 18:45:33,262 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 18:45:33,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 06:45:32" (1/3) ... [2023-08-25 18:45:33,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2a0817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:45:33, skipping insertion in model container [2023-08-25 18:45:33,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 06:45:32" (2/3) ... [2023-08-25 18:45:33,263 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2a0817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 06:45:33, skipping insertion in model container [2023-08-25 18:45:33,263 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 06:45:33" (3/3) ... [2023-08-25 18:45:33,264 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c [2023-08-25 18:45:33,274 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 18:45:33,274 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 82 error locations. [2023-08-25 18:45:33,274 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 18:45:33,338 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 18:45:33,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 608 places, 631 transitions, 1286 flow [2023-08-25 18:45:33,538 INFO L124 PetriNetUnfolderBase]: 33/628 cut-off events. [2023-08-25 18:45:33,539 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 18:45:33,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 628 events. 33/628 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1351 event pairs, 0 based on Foata normal form. 0/513 useless extension candidates. Maximal degree in co-relation 355. Up to 3 conditions per place. [2023-08-25 18:45:33,547 INFO L82 GeneralOperation]: Start removeDead. Operand has 608 places, 631 transitions, 1286 flow [2023-08-25 18:45:33,556 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 594 places, 617 transitions, 1252 flow [2023-08-25 18:45:33,558 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 18:45:33,566 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 594 places, 617 transitions, 1252 flow [2023-08-25 18:45:33,570 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 594 places, 617 transitions, 1252 flow [2023-08-25 18:45:33,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 594 places, 617 transitions, 1252 flow [2023-08-25 18:45:33,629 INFO L124 PetriNetUnfolderBase]: 33/617 cut-off events. [2023-08-25 18:45:33,629 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 18:45:33,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 630 conditions, 617 events. 33/617 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1316 event pairs, 0 based on Foata normal form. 0/503 useless extension candidates. Maximal degree in co-relation 355. Up to 3 conditions per place. [2023-08-25 18:45:33,645 INFO L119 LiptonReduction]: Number of co-enabled transitions 35640 [2023-08-25 18:46:06,534 WARN L234 SmtUtils]: Spent 8.50s on a formula simplification. DAG size of input: 152 DAG size of output: 150 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 18:46:45,681 WARN L234 SmtUtils]: Spent 34.12s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 18:47:20,327 WARN L234 SmtUtils]: Spent 34.64s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 18:48:58,690 WARN L234 SmtUtils]: Spent 1.64m on a formula simplification. DAG size of input: 268 DAG size of output: 266 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 18:49:44,940 WARN L234 SmtUtils]: Spent 46.25s on a formula simplification that was a NOOP. DAG size: 265 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 18:49:44,962 INFO L134 LiptonReduction]: Checked pairs total: 217772 [2023-08-25 18:49:44,962 INFO L136 LiptonReduction]: Total number of compositions: 719 [2023-08-25 18:49:44,971 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 18:49:44,974 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;@5f622713, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 18:49:44,974 INFO L358 AbstractCegarLoop]: Starting to check reachability of 121 error locations. [2023-08-25 18:49:44,975 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 18:49:44,975 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 18:49:44,975 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 18:49:44,975 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:49:44,976 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 18:49:44,976 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2023-08-25 18:49:44,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:49:44,979 INFO L85 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 1 times [2023-08-25 18:49:44,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:49:44,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069265276] [2023-08-25 18:49:44,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:49:44,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:49:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:49:45,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 18:49:45,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:49:45,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069265276] [2023-08-25 18:49:45,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069265276] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:49:45,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:49:45,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 18:49:45,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895931396] [2023-08-25 18:49:45,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:49:45,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 18:49:45,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:49:45,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 18:49:45,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 18:49:45,066 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 609 out of 1350 [2023-08-25 18:49:45,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 182 transitions, 382 flow. Second operand has 2 states, 2 states have (on average 609.5) internal successors, (1219), 2 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:45,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:49:45,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 609 of 1350 [2023-08-25 18:49:45,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:49:46,363 INFO L124 PetriNetUnfolderBase]: 7838/17901 cut-off events. [2023-08-25 18:49:46,364 INFO L125 PetriNetUnfolderBase]: For 445/445 co-relation queries the response was YES. [2023-08-25 18:49:46,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28767 conditions, 17901 events. 7838/17901 cut-off events. For 445/445 co-relation queries the response was YES. Maximal size of possible extension queue 718. Compared 174987 event pairs, 5657 based on Foata normal form. 1114/15881 useless extension candidates. Maximal degree in co-relation 26389. Up to 10507 conditions per place. [2023-08-25 18:49:46,458 INFO L140 encePairwiseOnDemand]: 1287/1350 looper letters, 56 selfloop transitions, 0 changer transitions 0/119 dead transitions. [2023-08-25 18:49:46,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 119 transitions, 368 flow [2023-08-25 18:49:46,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 18:49:46,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 18:49:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1337 transitions. [2023-08-25 18:49:46,476 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4951851851851852 [2023-08-25 18:49:46,476 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1337 transitions. [2023-08-25 18:49:46,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1337 transitions. [2023-08-25 18:49:46,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:49:46,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1337 transitions. [2023-08-25 18:49:46,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 668.5) internal successors, (1337), 2 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:46,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1350.0) internal successors, (4050), 3 states have internal predecessors, (4050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:46,493 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1350.0) internal successors, (4050), 3 states have internal predecessors, (4050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:46,494 INFO L175 Difference]: Start difference. First operand has 177 places, 182 transitions, 382 flow. Second operand 2 states and 1337 transitions. [2023-08-25 18:49:46,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 119 transitions, 368 flow [2023-08-25 18:49:46,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 119 transitions, 356 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 18:49:46,502 INFO L231 Difference]: Finished difference. Result has 112 places, 119 transitions, 244 flow [2023-08-25 18:49:46,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1350, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=244, PETRI_PLACES=112, PETRI_TRANSITIONS=119} [2023-08-25 18:49:46,507 INFO L281 CegarLoopForPetriNet]: 177 programPoint places, -65 predicate places. [2023-08-25 18:49:46,507 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 119 transitions, 244 flow [2023-08-25 18:49:46,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 609.5) internal successors, (1219), 2 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:46,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:49:46,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:49:46,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 18:49:46,508 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2023-08-25 18:49:46,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:49:46,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2076543005, now seen corresponding path program 1 times [2023-08-25 18:49:46,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:49:46,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471731785] [2023-08-25 18:49:46,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:49:46,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:49:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:49:46,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 18:49:46,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:49:46,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471731785] [2023-08-25 18:49:46,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471731785] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:49:46,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:49:46,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 18:49:46,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223468476] [2023-08-25 18:49:46,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:49:46,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 18:49:46,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:49:46,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 18:49:46,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 18:49:46,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 591 out of 1350 [2023-08-25 18:49:46,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 119 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:46,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:49:46,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 591 of 1350 [2023-08-25 18:49:46,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:49:47,695 INFO L124 PetriNetUnfolderBase]: 7838/17816 cut-off events. [2023-08-25 18:49:47,695 INFO L125 PetriNetUnfolderBase]: For 111/111 co-relation queries the response was YES. [2023-08-25 18:49:47,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28447 conditions, 17816 events. 7838/17816 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 716. Compared 173517 event pairs, 5657 based on Foata normal form. 0/14682 useless extension candidates. Maximal degree in co-relation 28444. Up to 10506 conditions per place. [2023-08-25 18:49:47,763 INFO L140 encePairwiseOnDemand]: 1347/1350 looper letters, 55 selfloop transitions, 1 changer transitions 0/117 dead transitions. [2023-08-25 18:49:47,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 117 transitions, 352 flow [2023-08-25 18:49:47,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 18:49:47,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 18:49:47,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1831 transitions. [2023-08-25 18:49:47,767 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45209876543209876 [2023-08-25 18:49:47,767 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1831 transitions. [2023-08-25 18:49:47,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1831 transitions. [2023-08-25 18:49:47,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:49:47,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1831 transitions. [2023-08-25 18:49:47,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 610.3333333333334) internal successors, (1831), 3 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:47,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:47,776 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:47,776 INFO L175 Difference]: Start difference. First operand has 112 places, 119 transitions, 244 flow. Second operand 3 states and 1831 transitions. [2023-08-25 18:49:47,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 117 transitions, 352 flow [2023-08-25 18:49:47,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 117 transitions, 352 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 18:49:47,778 INFO L231 Difference]: Finished difference. Result has 112 places, 117 transitions, 242 flow [2023-08-25 18:49:47,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1350, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=112, PETRI_TRANSITIONS=117} [2023-08-25 18:49:47,779 INFO L281 CegarLoopForPetriNet]: 177 programPoint places, -65 predicate places. [2023-08-25 18:49:47,779 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 117 transitions, 242 flow [2023-08-25 18:49:47,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:47,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:49:47,780 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:49:47,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 18:49:47,780 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2023-08-25 18:49:47,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:49:47,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1602553519, now seen corresponding path program 1 times [2023-08-25 18:49:47,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:49:47,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070106251] [2023-08-25 18:49:47,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:49:47,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:49:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:49:47,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 18:49:47,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:49:47,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070106251] [2023-08-25 18:49:47,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070106251] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:49:47,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:49:47,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 18:49:47,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404329393] [2023-08-25 18:49:47,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:49:47,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 18:49:47,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:49:47,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 18:49:47,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 18:49:47,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 1350 [2023-08-25 18:49:47,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 117 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 603.6666666666666) internal successors, (1811), 3 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:47,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:49:47,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 1350 [2023-08-25 18:49:47,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:49:49,181 INFO L124 PetriNetUnfolderBase]: 8464/19119 cut-off events. [2023-08-25 18:49:49,182 INFO L125 PetriNetUnfolderBase]: For 111/111 co-relation queries the response was YES. [2023-08-25 18:49:49,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30611 conditions, 19119 events. 8464/19119 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 185266 event pairs, 5657 based on Foata normal form. 0/15850 useless extension candidates. Maximal degree in co-relation 30607. Up to 10507 conditions per place. [2023-08-25 18:49:49,259 INFO L140 encePairwiseOnDemand]: 1347/1350 looper letters, 84 selfloop transitions, 2 changer transitions 0/147 dead transitions. [2023-08-25 18:49:49,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 147 transitions, 476 flow [2023-08-25 18:49:49,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 18:49:49,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 18:49:49,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1890 transitions. [2023-08-25 18:49:49,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2023-08-25 18:49:49,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1890 transitions. [2023-08-25 18:49:49,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1890 transitions. [2023-08-25 18:49:49,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:49:49,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1890 transitions. [2023-08-25 18:49:49,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 630.0) internal successors, (1890), 3 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:49,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:49,275 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:49,275 INFO L175 Difference]: Start difference. First operand has 112 places, 117 transitions, 242 flow. Second operand 3 states and 1890 transitions. [2023-08-25 18:49:49,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 147 transitions, 476 flow [2023-08-25 18:49:49,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 147 transitions, 475 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 18:49:49,277 INFO L231 Difference]: Finished difference. Result has 114 places, 118 transitions, 253 flow [2023-08-25 18:49:49,277 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1350, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=253, PETRI_PLACES=114, PETRI_TRANSITIONS=118} [2023-08-25 18:49:49,278 INFO L281 CegarLoopForPetriNet]: 177 programPoint places, -63 predicate places. [2023-08-25 18:49:49,278 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 118 transitions, 253 flow [2023-08-25 18:49:49,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 603.6666666666666) internal successors, (1811), 3 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:49,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:49:49,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:49:49,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 18:49:49,279 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2023-08-25 18:49:49,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:49:49,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1602549394, now seen corresponding path program 1 times [2023-08-25 18:49:49,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:49:49,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476892973] [2023-08-25 18:49:49,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:49:49,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:49:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:49:49,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 18:49:49,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:49:49,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476892973] [2023-08-25 18:49:49,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476892973] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:49:49,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:49:49,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 18:49:49,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426778560] [2023-08-25 18:49:49,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:49:49,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 18:49:49,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:49:49,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 18:49:49,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 18:49:49,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 591 out of 1350 [2023-08-25 18:49:49,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 118 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 594.0) internal successors, (1782), 3 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:49,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:49:49,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 591 of 1350 [2023-08-25 18:49:49,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:49:50,415 INFO L124 PetriNetUnfolderBase]: 8464/19634 cut-off events. [2023-08-25 18:49:50,415 INFO L125 PetriNetUnfolderBase]: For 1211/1211 co-relation queries the response was YES. [2023-08-25 18:49:50,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32237 conditions, 19634 events. 8464/19634 cut-off events. For 1211/1211 co-relation queries the response was YES. Maximal size of possible extension queue 693. Compared 194916 event pairs, 6157 based on Foata normal form. 0/16547 useless extension candidates. Maximal degree in co-relation 32232. Up to 11352 conditions per place. [2023-08-25 18:49:50,494 INFO L140 encePairwiseOnDemand]: 1347/1350 looper letters, 56 selfloop transitions, 1 changer transitions 0/116 dead transitions. [2023-08-25 18:49:50,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 116 transitions, 363 flow [2023-08-25 18:49:50,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 18:49:50,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 18:49:50,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1831 transitions. [2023-08-25 18:49:50,498 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45209876543209876 [2023-08-25 18:49:50,498 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1831 transitions. [2023-08-25 18:49:50,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1831 transitions. [2023-08-25 18:49:50,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:49:50,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1831 transitions. [2023-08-25 18:49:50,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 610.3333333333334) internal successors, (1831), 3 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:50,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:50,508 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:50,508 INFO L175 Difference]: Start difference. First operand has 114 places, 118 transitions, 253 flow. Second operand 3 states and 1831 transitions. [2023-08-25 18:49:50,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 116 transitions, 363 flow [2023-08-25 18:49:50,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 116 transitions, 361 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 18:49:50,510 INFO L231 Difference]: Finished difference. Result has 113 places, 116 transitions, 249 flow [2023-08-25 18:49:50,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1350, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=249, PETRI_PLACES=113, PETRI_TRANSITIONS=116} [2023-08-25 18:49:50,511 INFO L281 CegarLoopForPetriNet]: 177 programPoint places, -64 predicate places. [2023-08-25 18:49:50,511 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 116 transitions, 249 flow [2023-08-25 18:49:50,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 594.0) internal successors, (1782), 3 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:50,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:49:50,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:49:50,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 18:49:50,512 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2023-08-25 18:49:50,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:49:50,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1842996051, now seen corresponding path program 1 times [2023-08-25 18:49:50,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:49:50,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283174764] [2023-08-25 18:49:50,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:49:50,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:49:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:49:50,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 18:49:50,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:49:50,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283174764] [2023-08-25 18:49:50,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283174764] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:49:50,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:49:50,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 18:49:50,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913528642] [2023-08-25 18:49:50,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:49:50,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 18:49:50,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:49:50,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 18:49:50,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 18:49:50,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 1350 [2023-08-25 18:49:50,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 116 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 597.6666666666666) internal successors, (1793), 3 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:50,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:49:50,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 1350 [2023-08-25 18:49:50,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:49:52,191 INFO L124 PetriNetUnfolderBase]: 11634/23098 cut-off events. [2023-08-25 18:49:52,191 INFO L125 PetriNetUnfolderBase]: For 1194/1194 co-relation queries the response was YES. [2023-08-25 18:49:52,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40423 conditions, 23098 events. 11634/23098 cut-off events. For 1194/1194 co-relation queries the response was YES. Maximal size of possible extension queue 711. Compared 206690 event pairs, 2553 based on Foata normal form. 0/19311 useless extension candidates. Maximal degree in co-relation 40418. Up to 11650 conditions per place. [2023-08-25 18:49:52,273 INFO L140 encePairwiseOnDemand]: 1346/1350 looper letters, 93 selfloop transitions, 2 changer transitions 0/152 dead transitions. [2023-08-25 18:49:52,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 152 transitions, 524 flow [2023-08-25 18:49:52,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 18:49:52,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 18:49:52,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1877 transitions. [2023-08-25 18:49:52,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634567901234568 [2023-08-25 18:49:52,278 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1877 transitions. [2023-08-25 18:49:52,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1877 transitions. [2023-08-25 18:49:52,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:49:52,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1877 transitions. [2023-08-25 18:49:52,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 625.6666666666666) internal successors, (1877), 3 states have internal predecessors, (1877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:52,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:52,287 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:52,287 INFO L175 Difference]: Start difference. First operand has 113 places, 116 transitions, 249 flow. Second operand 3 states and 1877 transitions. [2023-08-25 18:49:52,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 152 transitions, 524 flow [2023-08-25 18:49:52,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 152 transitions, 523 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 18:49:52,292 INFO L231 Difference]: Finished difference. Result has 113 places, 116 transitions, 260 flow [2023-08-25 18:49:52,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1350, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=113, PETRI_TRANSITIONS=116} [2023-08-25 18:49:52,294 INFO L281 CegarLoopForPetriNet]: 177 programPoint places, -64 predicate places. [2023-08-25 18:49:52,294 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 116 transitions, 260 flow [2023-08-25 18:49:52,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 597.6666666666666) internal successors, (1793), 3 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:52,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:49:52,295 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:49:52,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 18:49:52,295 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2023-08-25 18:49:52,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:49:52,296 INFO L85 PathProgramCache]: Analyzing trace with hash -823038484, now seen corresponding path program 1 times [2023-08-25 18:49:52,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:49:52,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390379861] [2023-08-25 18:49:52,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:49:52,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:49:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:49:52,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 18:49:52,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:49:52,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390379861] [2023-08-25 18:49:52,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390379861] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:49:52,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:49:52,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 18:49:52,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129578983] [2023-08-25 18:49:52,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:49:52,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 18:49:52,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:49:52,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 18:49:52,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 18:49:52,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 1350 [2023-08-25 18:49:52,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 116 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 604.3333333333334) internal successors, (1813), 3 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:52,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:49:52,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 1350 [2023-08-25 18:49:52,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:49:54,069 INFO L124 PetriNetUnfolderBase]: 12710/26991 cut-off events. [2023-08-25 18:49:54,069 INFO L125 PetriNetUnfolderBase]: For 2690/2690 co-relation queries the response was YES. [2023-08-25 18:49:54,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47149 conditions, 26991 events. 12710/26991 cut-off events. For 2690/2690 co-relation queries the response was YES. Maximal size of possible extension queue 797. Compared 255407 event pairs, 8423 based on Foata normal form. 0/23636 useless extension candidates. Maximal degree in co-relation 47144. Up to 15653 conditions per place. [2023-08-25 18:49:54,189 INFO L140 encePairwiseOnDemand]: 1347/1350 looper letters, 91 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2023-08-25 18:49:54,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 150 transitions, 536 flow [2023-08-25 18:49:54,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 18:49:54,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 18:49:54,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1891 transitions. [2023-08-25 18:49:54,195 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4669135802469136 [2023-08-25 18:49:54,195 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1891 transitions. [2023-08-25 18:49:54,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1891 transitions. [2023-08-25 18:49:54,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:49:54,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1891 transitions. [2023-08-25 18:49:54,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:54,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:54,203 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:54,203 INFO L175 Difference]: Start difference. First operand has 113 places, 116 transitions, 260 flow. Second operand 3 states and 1891 transitions. [2023-08-25 18:49:54,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 150 transitions, 536 flow [2023-08-25 18:49:54,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 150 transitions, 536 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 18:49:54,207 INFO L231 Difference]: Finished difference. Result has 116 places, 117 transitions, 272 flow [2023-08-25 18:49:54,207 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1350, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=116, PETRI_TRANSITIONS=117} [2023-08-25 18:49:54,208 INFO L281 CegarLoopForPetriNet]: 177 programPoint places, -61 predicate places. [2023-08-25 18:49:54,208 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 117 transitions, 272 flow [2023-08-25 18:49:54,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 604.3333333333334) internal successors, (1813), 3 states have internal predecessors, (1813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:54,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:49:54,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:49:54,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 18:49:54,209 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2023-08-25 18:49:54,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:49:54,209 INFO L85 PathProgramCache]: Analyzing trace with hash -823231151, now seen corresponding path program 1 times [2023-08-25 18:49:54,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:49:54,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128399932] [2023-08-25 18:49:54,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:49:54,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:49:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:49:54,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 18:49:54,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:49:54,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128399932] [2023-08-25 18:49:54,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128399932] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:49:54,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:49:54,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 18:49:54,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329164562] [2023-08-25 18:49:54,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:49:54,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 18:49:54,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:49:54,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 18:49:54,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 18:49:54,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 591 out of 1350 [2023-08-25 18:49:54,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 117 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 594.6666666666666) internal successors, (1784), 3 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:54,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:49:54,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 591 of 1350 [2023-08-25 18:49:54,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:49:55,896 INFO L124 PetriNetUnfolderBase]: 12710/27229 cut-off events. [2023-08-25 18:49:55,896 INFO L125 PetriNetUnfolderBase]: For 4473/4473 co-relation queries the response was YES. [2023-08-25 18:49:55,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49359 conditions, 27229 events. 12710/27229 cut-off events. For 4473/4473 co-relation queries the response was YES. Maximal size of possible extension queue 818. Compared 259358 event pairs, 9298 based on Foata normal form. 0/24218 useless extension candidates. Maximal degree in co-relation 49352. Up to 17118 conditions per place. [2023-08-25 18:49:56,009 INFO L140 encePairwiseOnDemand]: 1347/1350 looper letters, 59 selfloop transitions, 1 changer transitions 0/115 dead transitions. [2023-08-25 18:49:56,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 115 transitions, 388 flow [2023-08-25 18:49:56,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 18:49:56,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 18:49:56,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1831 transitions. [2023-08-25 18:49:56,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45209876543209876 [2023-08-25 18:49:56,014 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1831 transitions. [2023-08-25 18:49:56,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1831 transitions. [2023-08-25 18:49:56,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:49:56,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1831 transitions. [2023-08-25 18:49:56,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 610.3333333333334) internal successors, (1831), 3 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:56,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:56,021 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:56,021 INFO L175 Difference]: Start difference. First operand has 116 places, 117 transitions, 272 flow. Second operand 3 states and 1831 transitions. [2023-08-25 18:49:56,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 115 transitions, 388 flow [2023-08-25 18:49:56,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 115 transitions, 386 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 18:49:56,042 INFO L231 Difference]: Finished difference. Result has 115 places, 115 transitions, 268 flow [2023-08-25 18:49:56,042 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1350, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=115, PETRI_TRANSITIONS=115} [2023-08-25 18:49:56,043 INFO L281 CegarLoopForPetriNet]: 177 programPoint places, -62 predicate places. [2023-08-25 18:49:56,043 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 115 transitions, 268 flow [2023-08-25 18:49:56,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 594.6666666666666) internal successors, (1784), 3 states have internal predecessors, (1784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:56,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:49:56,044 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:49:56,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 18:49:56,044 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2023-08-25 18:49:56,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:49:56,044 INFO L85 PathProgramCache]: Analyzing trace with hash -850743705, now seen corresponding path program 1 times [2023-08-25 18:49:56,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:49:56,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496566661] [2023-08-25 18:49:56,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:49:56,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:49:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:49:56,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 18:49:56,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:49:56,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496566661] [2023-08-25 18:49:56,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496566661] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:49:56,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:49:56,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 18:49:56,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485173953] [2023-08-25 18:49:56,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:49:56,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 18:49:56,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:49:56,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 18:49:56,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 18:49:56,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 1350 [2023-08-25 18:49:56,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 115 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:56,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:49:56,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 1350 [2023-08-25 18:49:56,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:49:58,305 INFO L124 PetriNetUnfolderBase]: 20130/36934 cut-off events. [2023-08-25 18:49:58,305 INFO L125 PetriNetUnfolderBase]: For 5555/5555 co-relation queries the response was YES. [2023-08-25 18:49:58,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71940 conditions, 36934 events. 20130/36934 cut-off events. For 5555/5555 co-relation queries the response was YES. Maximal size of possible extension queue 938. Compared 313997 event pairs, 5203 based on Foata normal form. 0/33103 useless extension candidates. Maximal degree in co-relation 71933. Up to 18504 conditions per place. [2023-08-25 18:49:58,456 INFO L140 encePairwiseOnDemand]: 1346/1350 looper letters, 103 selfloop transitions, 2 changer transitions 0/157 dead transitions. [2023-08-25 18:49:58,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 157 transitions, 595 flow [2023-08-25 18:49:58,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 18:49:58,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 18:49:58,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1881 transitions. [2023-08-25 18:49:58,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46444444444444444 [2023-08-25 18:49:58,460 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1881 transitions. [2023-08-25 18:49:58,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1881 transitions. [2023-08-25 18:49:58,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:49:58,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1881 transitions. [2023-08-25 18:49:58,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:58,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:58,467 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:58,467 INFO L175 Difference]: Start difference. First operand has 115 places, 115 transitions, 268 flow. Second operand 3 states and 1881 transitions. [2023-08-25 18:49:58,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 157 transitions, 595 flow [2023-08-25 18:49:58,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 157 transitions, 594 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 18:49:58,480 INFO L231 Difference]: Finished difference. Result has 115 places, 115 transitions, 279 flow [2023-08-25 18:49:58,480 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1350, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=115, PETRI_TRANSITIONS=115} [2023-08-25 18:49:58,480 INFO L281 CegarLoopForPetriNet]: 177 programPoint places, -62 predicate places. [2023-08-25 18:49:58,480 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 115 transitions, 279 flow [2023-08-25 18:49:58,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:58,481 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:49:58,481 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:49:58,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 18:49:58,481 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2023-08-25 18:49:58,481 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:49:58,481 INFO L85 PathProgramCache]: Analyzing trace with hash 434212720, now seen corresponding path program 1 times [2023-08-25 18:49:58,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:49:58,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233474312] [2023-08-25 18:49:58,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:49:58,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:49:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:49:58,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 18:49:58,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:49:58,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233474312] [2023-08-25 18:49:58,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233474312] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:49:58,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:49:58,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 18:49:58,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942559960] [2023-08-25 18:49:58,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:49:58,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 18:49:58,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:49:58,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 18:49:58,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 18:49:58,734 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 495 out of 1350 [2023-08-25 18:49:58,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 115 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 497.3333333333333) internal successors, (2984), 6 states have internal predecessors, (2984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:49:58,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:49:58,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 495 of 1350 [2023-08-25 18:49:58,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:50:18,795 INFO L124 PetriNetUnfolderBase]: 277650/370426 cut-off events. [2023-08-25 18:50:18,795 INFO L125 PetriNetUnfolderBase]: For 66581/66581 co-relation queries the response was YES. [2023-08-25 18:50:19,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803013 conditions, 370426 events. 277650/370426 cut-off events. For 66581/66581 co-relation queries the response was YES. Maximal size of possible extension queue 4155. Compared 2443959 event pairs, 27731 based on Foata normal form. 0/332811 useless extension candidates. Maximal degree in co-relation 803006. Up to 138003 conditions per place. [2023-08-25 18:50:20,743 INFO L140 encePairwiseOnDemand]: 1345/1350 looper letters, 399 selfloop transitions, 4 changer transitions 0/410 dead transitions. [2023-08-25 18:50:20,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 410 transitions, 1815 flow [2023-08-25 18:50:20,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 18:50:20,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 18:50:20,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3349 transitions. [2023-08-25 18:50:20,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41345679012345676 [2023-08-25 18:50:20,751 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3349 transitions. [2023-08-25 18:50:20,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3349 transitions. [2023-08-25 18:50:20,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:50:20,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3349 transitions. [2023-08-25 18:50:20,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 558.1666666666666) internal successors, (3349), 6 states have internal predecessors, (3349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:20,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1350.0) internal successors, (9450), 7 states have internal predecessors, (9450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:20,763 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1350.0) internal successors, (9450), 7 states have internal predecessors, (9450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:20,763 INFO L175 Difference]: Start difference. First operand has 115 places, 115 transitions, 279 flow. Second operand 6 states and 3349 transitions. [2023-08-25 18:50:20,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 410 transitions, 1815 flow [2023-08-25 18:50:20,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 410 transitions, 1815 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 18:50:20,862 INFO L231 Difference]: Finished difference. Result has 119 places, 114 transitions, 285 flow [2023-08-25 18:50:20,862 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1350, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=285, PETRI_PLACES=119, PETRI_TRANSITIONS=114} [2023-08-25 18:50:20,862 INFO L281 CegarLoopForPetriNet]: 177 programPoint places, -58 predicate places. [2023-08-25 18:50:20,862 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 114 transitions, 285 flow [2023-08-25 18:50:20,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 497.3333333333333) internal successors, (2984), 6 states have internal predecessors, (2984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:20,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:50:20,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:50:20,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 18:50:20,863 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2023-08-25 18:50:20,863 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:50:20,864 INFO L85 PathProgramCache]: Analyzing trace with hash -804693151, now seen corresponding path program 1 times [2023-08-25 18:50:20,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:50:20,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043567937] [2023-08-25 18:50:20,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:50:20,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:50:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:50:20,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 18:50:20,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:50:20,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043567937] [2023-08-25 18:50:20,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043567937] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:50:20,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:50:20,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 18:50:20,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229895773] [2023-08-25 18:50:20,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:50:20,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 18:50:20,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:50:20,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 18:50:20,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 18:50:20,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 515 out of 1350 [2023-08-25 18:50:20,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 114 transitions, 285 flow. Second operand has 4 states, 4 states have (on average 519.25) internal successors, (2077), 4 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:20,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:50:20,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 515 of 1350 [2023-08-25 18:50:20,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:50:25,309 INFO L124 PetriNetUnfolderBase]: 37291/65735 cut-off events. [2023-08-25 18:50:25,309 INFO L125 PetriNetUnfolderBase]: For 18335/18335 co-relation queries the response was YES. [2023-08-25 18:50:25,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137695 conditions, 65735 events. 37291/65735 cut-off events. For 18335/18335 co-relation queries the response was YES. Maximal size of possible extension queue 1438. Compared 580074 event pairs, 28748 based on Foata normal form. 614/60101 useless extension candidates. Maximal degree in co-relation 137687. Up to 39843 conditions per place. [2023-08-25 18:50:25,831 INFO L140 encePairwiseOnDemand]: 1342/1350 looper letters, 117 selfloop transitions, 7 changer transitions 0/166 dead transitions. [2023-08-25 18:50:25,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 166 transitions, 672 flow [2023-08-25 18:50:25,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 18:50:25,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 18:50:25,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2692 transitions. [2023-08-25 18:50:25,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3988148148148148 [2023-08-25 18:50:25,841 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2692 transitions. [2023-08-25 18:50:25,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2692 transitions. [2023-08-25 18:50:25,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:50:25,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2692 transitions. [2023-08-25 18:50:25,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 538.4) internal successors, (2692), 5 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:25,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1350.0) internal successors, (8100), 6 states have internal predecessors, (8100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:25,851 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1350.0) internal successors, (8100), 6 states have internal predecessors, (8100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:25,851 INFO L175 Difference]: Start difference. First operand has 119 places, 114 transitions, 285 flow. Second operand 5 states and 2692 transitions. [2023-08-25 18:50:25,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 166 transitions, 672 flow [2023-08-25 18:50:25,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 166 transitions, 663 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 18:50:25,895 INFO L231 Difference]: Finished difference. Result has 122 places, 120 transitions, 332 flow [2023-08-25 18:50:25,895 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1350, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=332, PETRI_PLACES=122, PETRI_TRANSITIONS=120} [2023-08-25 18:50:25,895 INFO L281 CegarLoopForPetriNet]: 177 programPoint places, -55 predicate places. [2023-08-25 18:50:25,895 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 120 transitions, 332 flow [2023-08-25 18:50:25,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 519.25) internal successors, (2077), 4 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:25,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:50:25,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:50:25,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 18:50:25,896 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2023-08-25 18:50:25,896 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:50:25,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1594927232, now seen corresponding path program 1 times [2023-08-25 18:50:25,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:50:25,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046392718] [2023-08-25 18:50:25,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:50:25,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:50:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:50:25,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 18:50:25,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:50:25,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046392718] [2023-08-25 18:50:25,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046392718] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:50:25,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:50:25,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 18:50:25,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935580826] [2023-08-25 18:50:25,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:50:25,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 18:50:25,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:50:25,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 18:50:25,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 18:50:25,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 1350 [2023-08-25 18:50:25,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 120 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 605.6666666666666) internal successors, (1817), 3 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:25,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:50:25,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 1350 [2023-08-25 18:50:25,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:50:29,488 INFO L124 PetriNetUnfolderBase]: 30344/56892 cut-off events. [2023-08-25 18:50:29,488 INFO L125 PetriNetUnfolderBase]: For 12589/12589 co-relation queries the response was YES. [2023-08-25 18:50:29,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113147 conditions, 56892 events. 30344/56892 cut-off events. For 12589/12589 co-relation queries the response was YES. Maximal size of possible extension queue 1299. Compared 525375 event pairs, 20690 based on Foata normal form. 1126/53168 useless extension candidates. Maximal degree in co-relation 113136. Up to 37366 conditions per place. [2023-08-25 18:50:29,786 INFO L140 encePairwiseOnDemand]: 1347/1350 looper letters, 100 selfloop transitions, 2 changer transitions 0/155 dead transitions. [2023-08-25 18:50:29,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 155 transitions, 640 flow [2023-08-25 18:50:29,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 18:50:29,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 18:50:29,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1891 transitions. [2023-08-25 18:50:29,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4669135802469136 [2023-08-25 18:50:29,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1891 transitions. [2023-08-25 18:50:29,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1891 transitions. [2023-08-25 18:50:29,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:50:29,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1891 transitions. [2023-08-25 18:50:29,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 630.3333333333334) internal successors, (1891), 3 states have internal predecessors, (1891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:29,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:29,799 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1350.0) internal successors, (5400), 4 states have internal predecessors, (5400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:29,799 INFO L175 Difference]: Start difference. First operand has 122 places, 120 transitions, 332 flow. Second operand 3 states and 1891 transitions. [2023-08-25 18:50:29,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 155 transitions, 640 flow [2023-08-25 18:50:29,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 155 transitions, 636 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 18:50:29,816 INFO L231 Difference]: Finished difference. Result has 124 places, 121 transitions, 342 flow [2023-08-25 18:50:29,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1350, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=124, PETRI_TRANSITIONS=121} [2023-08-25 18:50:29,817 INFO L281 CegarLoopForPetriNet]: 177 programPoint places, -53 predicate places. [2023-08-25 18:50:29,817 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 121 transitions, 342 flow [2023-08-25 18:50:29,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.6666666666666) internal successors, (1817), 3 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:29,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:50:29,817 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:50:29,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 18:50:29,817 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2023-08-25 18:50:29,818 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:50:29,818 INFO L85 PathProgramCache]: Analyzing trace with hash 442425468, now seen corresponding path program 1 times [2023-08-25 18:50:29,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:50:29,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026961384] [2023-08-25 18:50:29,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:50:29,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:50:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:50:29,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 18:50:29,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:50:29,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026961384] [2023-08-25 18:50:29,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026961384] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:50:29,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:50:29,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 18:50:29,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982854438] [2023-08-25 18:50:29,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:50:29,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 18:50:29,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:50:29,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 18:50:29,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-08-25 18:50:29,933 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 509 out of 1350 [2023-08-25 18:50:29,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 121 transitions, 342 flow. Second operand has 6 states, 6 states have (on average 512.0) internal successors, (3072), 6 states have internal predecessors, (3072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:29,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:50:29,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 509 of 1350 [2023-08-25 18:50:29,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:50:39,437 INFO L124 PetriNetUnfolderBase]: 82698/139443 cut-off events. [2023-08-25 18:50:39,437 INFO L125 PetriNetUnfolderBase]: For 43154/43154 co-relation queries the response was YES. [2023-08-25 18:50:39,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300995 conditions, 139443 events. 82698/139443 cut-off events. For 43154/43154 co-relation queries the response was YES. Maximal size of possible extension queue 2498. Compared 1264736 event pairs, 42965 based on Foata normal form. 686/130437 useless extension candidates. Maximal degree in co-relation 300983. Up to 50176 conditions per place. [2023-08-25 18:50:40,263 INFO L140 encePairwiseOnDemand]: 1339/1350 looper letters, 274 selfloop transitions, 19 changer transitions 0/335 dead transitions. [2023-08-25 18:50:40,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 335 transitions, 1554 flow [2023-08-25 18:50:40,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 18:50:40,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 18:50:40,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4845 transitions. [2023-08-25 18:50:40,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3987654320987654 [2023-08-25 18:50:40,272 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 4845 transitions. [2023-08-25 18:50:40,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 4845 transitions. [2023-08-25 18:50:40,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 18:50:40,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 4845 transitions. [2023-08-25 18:50:40,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 538.3333333333334) internal successors, (4845), 9 states have internal predecessors, (4845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:40,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 1350.0) internal successors, (13500), 10 states have internal predecessors, (13500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:40,286 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 1350.0) internal successors, (13500), 10 states have internal predecessors, (13500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:40,286 INFO L175 Difference]: Start difference. First operand has 124 places, 121 transitions, 342 flow. Second operand 9 states and 4845 transitions. [2023-08-25 18:50:40,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 335 transitions, 1554 flow [2023-08-25 18:50:40,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 335 transitions, 1542 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 18:50:40,854 INFO L231 Difference]: Finished difference. Result has 136 places, 134 transitions, 483 flow [2023-08-25 18:50:40,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1350, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=483, PETRI_PLACES=136, PETRI_TRANSITIONS=134} [2023-08-25 18:50:40,854 INFO L281 CegarLoopForPetriNet]: 177 programPoint places, -41 predicate places. [2023-08-25 18:50:40,854 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 134 transitions, 483 flow [2023-08-25 18:50:40,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 512.0) internal successors, (3072), 6 states have internal predecessors, (3072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:40,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 18:50:40,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 18:50:40,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 18:50:40,855 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 117 more)] === [2023-08-25 18:50:40,855 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 18:50:40,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1185390168, now seen corresponding path program 1 times [2023-08-25 18:50:40,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 18:50:40,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38273691] [2023-08-25 18:50:40,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 18:50:40,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 18:50:40,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 18:50:41,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 18:50:41,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 18:50:41,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38273691] [2023-08-25 18:50:41,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38273691] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 18:50:41,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 18:50:41,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 18:50:41,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426030190] [2023-08-25 18:50:41,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 18:50:41,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 18:50:41,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 18:50:41,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 18:50:41,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 18:50:41,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 1350 [2023-08-25 18:50:41,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 134 transitions, 483 flow. Second operand has 6 states, 6 states have (on average 489.1666666666667) internal successors, (2935), 6 states have internal predecessors, (2935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 18:50:41,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 18:50:41,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 1350 [2023-08-25 18:50:41,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 18:51:54,436 INFO L124 PetriNetUnfolderBase]: 752841/1032113 cut-off events. [2023-08-25 18:51:54,436 INFO L125 PetriNetUnfolderBase]: For 488283/488283 co-relation queries the response was YES. [2023-08-25 18:51:58,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2468756 conditions, 1032113 events. 752841/1032113 cut-off events. For 488283/488283 co-relation queries the response was YES. Maximal size of possible extension queue 8147. Compared 7596384 event pairs, 434171 based on Foata normal form. 0/958753 useless extension candidates. Maximal degree in co-relation 2468739. Up to 679031 conditions per place.