/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/09-regions_26-alloc_region_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 07:27:03,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 07:27:03,753 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 07:27:03,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 07:27:03,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 07:27:03,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 07:27:03,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 07:27:03,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 07:27:03,790 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 07:27:03,793 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 07:27:03,793 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 07:27:03,793 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 07:27:03,794 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 07:27:03,794 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 07:27:03,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 07:27:03,795 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 07:27:03,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 07:27:03,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 07:27:03,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 07:27:03,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 07:27:03,796 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 07:27:03,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 07:27:03,796 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 07:27:03,797 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 07:27:03,797 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 07:27:03,797 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 07:27:03,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 07:27:03,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:27:03,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 07:27:03,798 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 07:27:03,798 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 07:27:03,798 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 07:27:03,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 07:27:03,799 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 07:27:03,799 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 07:27:03,799 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 07:27:04,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 07:27:04,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 07:27:04,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 07:27:04,040 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 07:27:04,041 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 07:27:04,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_26-alloc_region_rc.i [2023-08-26 07:27:05,061 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 07:27:05,281 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 07:27:05,282 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_26-alloc_region_rc.i [2023-08-26 07:27:05,307 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4027a9506/e2f82ae09a6143e2b16157af5d9167a8/FLAGb47bcee23 [2023-08-26 07:27:05,319 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4027a9506/e2f82ae09a6143e2b16157af5d9167a8 [2023-08-26 07:27:05,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 07:27:05,325 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 07:27:05,327 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 07:27:05,327 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 07:27:05,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 07:27:05,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:27:05" (1/1) ... [2023-08-26 07:27:05,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f5f8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:27:05, skipping insertion in model container [2023-08-26 07:27:05,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:27:05" (1/1) ... [2023-08-26 07:27:05,374 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 07:27:05,794 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:27:05,804 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 07:27:05,814 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 07:27:05,815 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [244] [2023-08-26 07:27:05,833 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-26 07:27:05,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:27:05,903 INFO L206 MainTranslator]: Completed translation [2023-08-26 07:27:05,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:27:05 WrapperNode [2023-08-26 07:27:05,904 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 07:27:05,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 07:27:05,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 07:27:05,905 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 07:27:05,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:27:05" (1/1) ... [2023-08-26 07:27:05,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:27:05" (1/1) ... [2023-08-26 07:27:05,950 INFO L138 Inliner]: procedures = 370, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 236 [2023-08-26 07:27:05,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 07:27:05,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 07:27:05,951 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 07:27:05,951 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 07:27:05,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:27:05" (1/1) ... [2023-08-26 07:27:05,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:27:05" (1/1) ... [2023-08-26 07:27:05,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:27:05" (1/1) ... [2023-08-26 07:27:05,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:27:05" (1/1) ... [2023-08-26 07:27:05,974 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:27:05" (1/1) ... [2023-08-26 07:27:05,976 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:27:05" (1/1) ... [2023-08-26 07:27:05,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:27:05" (1/1) ... [2023-08-26 07:27:05,979 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:27:05" (1/1) ... [2023-08-26 07:27:05,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 07:27:05,982 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 07:27:05,982 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 07:27:05,982 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 07:27:05,983 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:27:05" (1/1) ... [2023-08-26 07:27:05,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:27:05,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:27:06,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 07:27:06,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 07:27:06,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 07:27:06,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-26 07:27:06,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 07:27:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-26 07:27:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 07:27:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 07:27:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 07:27:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 07:27:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 07:27:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 07:27:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 07:27:06,040 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 07:27:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 07:27:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 07:27:06,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 07:27:06,041 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 07:27:06,144 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 07:27:06,145 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 07:27:06,492 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 07:27:06,503 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 07:27:06,504 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-08-26 07:27:06,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:27:06 BoogieIcfgContainer [2023-08-26 07:27:06,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 07:27:06,507 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 07:27:06,508 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 07:27:06,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 07:27:06,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 07:27:05" (1/3) ... [2023-08-26 07:27:06,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:27:06, skipping insertion in model container [2023-08-26 07:27:06,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:27:05" (2/3) ... [2023-08-26 07:27:06,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@210d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:27:06, skipping insertion in model container [2023-08-26 07:27:06,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:27:06" (3/3) ... [2023-08-26 07:27:06,512 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2023-08-26 07:27:06,522 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 07:27:06,523 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-26 07:27:06,523 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 07:27:06,598 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 07:27:06,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 264 places, 262 transitions, 529 flow [2023-08-26 07:27:06,726 INFO L124 PetriNetUnfolderBase]: 2/261 cut-off events. [2023-08-26 07:27:06,726 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:27:06,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 261 events. 2/261 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 247 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 192. Up to 2 conditions per place. [2023-08-26 07:27:06,731 INFO L82 GeneralOperation]: Start removeDead. Operand has 264 places, 262 transitions, 529 flow [2023-08-26 07:27:06,739 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 261 transitions, 525 flow [2023-08-26 07:27:06,741 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 07:27:06,747 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 263 places, 261 transitions, 525 flow [2023-08-26 07:27:06,748 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 263 places, 261 transitions, 525 flow [2023-08-26 07:27:06,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 261 transitions, 525 flow [2023-08-26 07:27:06,793 INFO L124 PetriNetUnfolderBase]: 2/261 cut-off events. [2023-08-26 07:27:06,793 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:27:06,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 261 events. 2/261 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 247 event pairs, 0 based on Foata normal form. 0/239 useless extension candidates. Maximal degree in co-relation 192. Up to 2 conditions per place. [2023-08-26 07:27:06,801 INFO L119 LiptonReduction]: Number of co-enabled transitions 18144 [2023-08-26 07:27:21,030 WARN L234 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 125 DAG size of output: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:27:29,479 WARN L234 SmtUtils]: Spent 6.31s on a formula simplification. DAG size of input: 125 DAG size of output: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:27:41,178 WARN L234 SmtUtils]: Spent 9.26s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:27:47,494 WARN L234 SmtUtils]: Spent 6.31s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:27:57,103 WARN L234 SmtUtils]: Spent 9.61s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:28:03,207 WARN L234 SmtUtils]: Spent 6.10s on a formula simplification that was a NOOP. DAG size: 164 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:28:08,316 WARN L234 SmtUtils]: Spent 5.10s on a formula simplification. DAG size of input: 216 DAG size of output: 214 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 07:28:17,578 INFO L134 LiptonReduction]: Checked pairs total: 144406 [2023-08-26 07:28:17,578 INFO L136 LiptonReduction]: Total number of compositions: 148 [2023-08-26 07:28:17,588 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 07:28:17,592 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;@1b091f1f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 07:28:17,592 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-08-26 07:28:17,593 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 07:28:17,593 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 07:28:17,593 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:28:17,593 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:28:17,593 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 07:28:17,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:28:17,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:28:17,597 INFO L85 PathProgramCache]: Analyzing trace with hash 796, now seen corresponding path program 1 times [2023-08-26 07:28:17,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:28:17,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161142300] [2023-08-26 07:28:17,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:28:17,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:28:17,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:28:17,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:28:17,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:28:17,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161142300] [2023-08-26 07:28:17,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161142300] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:28:17,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:28:17,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 07:28:17,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966463021] [2023-08-26 07:28:17,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:28:17,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 07:28:17,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:28:17,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 07:28:17,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 07:28:17,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 410 [2023-08-26 07:28:17,691 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 132 transitions, 267 flow. Second operand has 2 states, 2 states have (on average 260.5) internal successors, (521), 2 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:17,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:28:17,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 410 [2023-08-26 07:28:17,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:28:17,897 INFO L124 PetriNetUnfolderBase]: 379/1728 cut-off events. [2023-08-26 07:28:17,897 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:28:17,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2512 conditions, 1728 events. 379/1728 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 11594 event pairs, 360 based on Foata normal form. 19/1664 useless extension candidates. Maximal degree in co-relation 2503. Up to 780 conditions per place. [2023-08-26 07:28:17,905 INFO L140 encePairwiseOnDemand]: 405/410 looper letters, 41 selfloop transitions, 0 changer transitions 0/127 dead transitions. [2023-08-26 07:28:17,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 127 transitions, 339 flow [2023-08-26 07:28:17,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 07:28:17,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 07:28:17,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 566 transitions. [2023-08-26 07:28:17,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6902439024390243 [2023-08-26 07:28:17,921 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 566 transitions. [2023-08-26 07:28:17,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 566 transitions. [2023-08-26 07:28:17,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:28:17,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 566 transitions. [2023-08-26 07:28:17,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 283.0) internal successors, (566), 2 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:17,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:17,933 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:17,934 INFO L175 Difference]: Start difference. First operand has 134 places, 132 transitions, 267 flow. Second operand 2 states and 566 transitions. [2023-08-26 07:28:17,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 127 transitions, 339 flow [2023-08-26 07:28:17,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 127 transitions, 338 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:28:17,939 INFO L231 Difference]: Finished difference. Result has 130 places, 127 transitions, 256 flow [2023-08-26 07:28:17,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=256, PETRI_PLACES=130, PETRI_TRANSITIONS=127} [2023-08-26 07:28:17,944 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, -4 predicate places. [2023-08-26 07:28:17,944 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 127 transitions, 256 flow [2023-08-26 07:28:17,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 260.5) internal successors, (521), 2 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:17,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:28:17,945 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:28:17,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 07:28:17,945 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:28:17,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:28:17,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1766698446, now seen corresponding path program 1 times [2023-08-26 07:28:17,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:28:17,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383549271] [2023-08-26 07:28:17,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:28:17,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:28:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:28:18,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:28:18,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:28:18,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383549271] [2023-08-26 07:28:18,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383549271] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:28:18,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:28:18,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:28:18,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415291047] [2023-08-26 07:28:18,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:28:18,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:28:18,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:28:18,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:28:18,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:28:18,439 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 410 [2023-08-26 07:28:18,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 127 transitions, 256 flow. Second operand has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:18,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:28:18,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 410 [2023-08-26 07:28:18,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:28:19,549 INFO L124 PetriNetUnfolderBase]: 3570/7519 cut-off events. [2023-08-26 07:28:19,550 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:28:19,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14728 conditions, 7519 events. 3570/7519 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 44649 event pairs, 2986 based on Foata normal form. 0/6497 useless extension candidates. Maximal degree in co-relation 14725. Up to 6837 conditions per place. [2023-08-26 07:28:19,576 INFO L140 encePairwiseOnDemand]: 368/410 looper letters, 229 selfloop transitions, 149 changer transitions 0/387 dead transitions. [2023-08-26 07:28:19,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 387 transitions, 1532 flow [2023-08-26 07:28:19,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:28:19,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:28:19,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1183 transitions. [2023-08-26 07:28:19,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48089430894308943 [2023-08-26 07:28:19,579 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1183 transitions. [2023-08-26 07:28:19,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1183 transitions. [2023-08-26 07:28:19,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:28:19,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1183 transitions. [2023-08-26 07:28:19,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 197.16666666666666) internal successors, (1183), 6 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:19,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:19,586 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:19,586 INFO L175 Difference]: Start difference. First operand has 130 places, 127 transitions, 256 flow. Second operand 6 states and 1183 transitions. [2023-08-26 07:28:19,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 387 transitions, 1532 flow [2023-08-26 07:28:19,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 387 transitions, 1532 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:28:19,595 INFO L231 Difference]: Finished difference. Result has 139 places, 275 transitions, 1084 flow [2023-08-26 07:28:19,596 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1084, PETRI_PLACES=139, PETRI_TRANSITIONS=275} [2023-08-26 07:28:19,599 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 5 predicate places. [2023-08-26 07:28:19,599 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 275 transitions, 1084 flow [2023-08-26 07:28:19,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:19,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:28:19,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:28:19,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 07:28:19,600 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:28:19,600 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:28:19,601 INFO L85 PathProgramCache]: Analyzing trace with hash 917157654, now seen corresponding path program 1 times [2023-08-26 07:28:19,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:28:19,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090843069] [2023-08-26 07:28:19,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:28:19,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:28:19,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:28:19,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:28:19,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:28:19,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090843069] [2023-08-26 07:28:19,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090843069] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:28:19,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:28:19,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:28:19,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306667241] [2023-08-26 07:28:19,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:28:19,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:28:19,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:28:19,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:28:19,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:28:19,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 410 [2023-08-26 07:28:19,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 275 transitions, 1084 flow. Second operand has 6 states, 6 states have (on average 129.5) internal successors, (777), 6 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:19,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:28:19,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 410 [2023-08-26 07:28:19,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:28:20,775 INFO L124 PetriNetUnfolderBase]: 3818/8038 cut-off events. [2023-08-26 07:28:20,776 INFO L125 PetriNetUnfolderBase]: For 1459/1459 co-relation queries the response was YES. [2023-08-26 07:28:20,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19006 conditions, 8038 events. 3818/8038 cut-off events. For 1459/1459 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 48149 event pairs, 2925 based on Foata normal form. 0/6985 useless extension candidates. Maximal degree in co-relation 18998. Up to 7399 conditions per place. [2023-08-26 07:28:20,805 INFO L140 encePairwiseOnDemand]: 376/410 looper letters, 358 selfloop transitions, 121 changer transitions 0/487 dead transitions. [2023-08-26 07:28:20,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 487 transitions, 2524 flow [2023-08-26 07:28:20,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:28:20,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:28:20,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1100 transitions. [2023-08-26 07:28:20,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44715447154471544 [2023-08-26 07:28:20,808 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1100 transitions. [2023-08-26 07:28:20,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1100 transitions. [2023-08-26 07:28:20,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:28:20,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1100 transitions. [2023-08-26 07:28:20,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 183.33333333333334) internal successors, (1100), 6 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:20,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:20,813 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:20,813 INFO L175 Difference]: Start difference. First operand has 139 places, 275 transitions, 1084 flow. Second operand 6 states and 1100 transitions. [2023-08-26 07:28:20,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 487 transitions, 2524 flow [2023-08-26 07:28:20,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 487 transitions, 2524 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:28:20,829 INFO L231 Difference]: Finished difference. Result has 148 places, 391 transitions, 1790 flow [2023-08-26 07:28:20,829 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1790, PETRI_PLACES=148, PETRI_TRANSITIONS=391} [2023-08-26 07:28:20,830 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 14 predicate places. [2023-08-26 07:28:20,830 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 391 transitions, 1790 flow [2023-08-26 07:28:20,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.5) internal successors, (777), 6 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:20,830 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:28:20,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:28:20,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 07:28:20,831 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:28:20,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:28:20,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1255662643, now seen corresponding path program 1 times [2023-08-26 07:28:20,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:28:20,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882272028] [2023-08-26 07:28:20,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:28:20,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:28:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:28:21,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:28:21,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:28:21,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882272028] [2023-08-26 07:28:21,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882272028] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:28:21,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:28:21,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:28:21,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689263625] [2023-08-26 07:28:21,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:28:21,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:28:21,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:28:21,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:28:21,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:28:21,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 410 [2023-08-26 07:28:21,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 391 transitions, 1790 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:21,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:28:21,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 410 [2023-08-26 07:28:21,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:28:24,699 INFO L124 PetriNetUnfolderBase]: 12808/26487 cut-off events. [2023-08-26 07:28:24,700 INFO L125 PetriNetUnfolderBase]: For 11188/11190 co-relation queries the response was YES. [2023-08-26 07:28:24,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73391 conditions, 26487 events. 12808/26487 cut-off events. For 11188/11190 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 211489 event pairs, 1503 based on Foata normal form. 2/23058 useless extension candidates. Maximal degree in co-relation 73378. Up to 7964 conditions per place. [2023-08-26 07:28:24,809 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1632 selfloop transitions, 168 changer transitions 4/1809 dead transitions. [2023-08-26 07:28:24,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 1809 transitions, 11555 flow [2023-08-26 07:28:24,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-26 07:28:24,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-26 07:28:24,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3038 transitions. [2023-08-26 07:28:24,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3704878048780488 [2023-08-26 07:28:24,815 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3038 transitions. [2023-08-26 07:28:24,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3038 transitions. [2023-08-26 07:28:24,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:28:24,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3038 transitions. [2023-08-26 07:28:24,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 151.9) internal successors, (3038), 20 states have internal predecessors, (3038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:24,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 410.0) internal successors, (8610), 21 states have internal predecessors, (8610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:24,829 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 410.0) internal successors, (8610), 21 states have internal predecessors, (8610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:24,829 INFO L175 Difference]: Start difference. First operand has 148 places, 391 transitions, 1790 flow. Second operand 20 states and 3038 transitions. [2023-08-26 07:28:24,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 1809 transitions, 11555 flow [2023-08-26 07:28:24,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 1809 transitions, 11381 flow, removed 87 selfloop flow, removed 0 redundant places. [2023-08-26 07:28:24,900 INFO L231 Difference]: Finished difference. Result has 185 places, 559 transitions, 3560 flow [2023-08-26 07:28:24,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=1760, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3560, PETRI_PLACES=185, PETRI_TRANSITIONS=559} [2023-08-26 07:28:24,901 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 51 predicate places. [2023-08-26 07:28:24,901 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 559 transitions, 3560 flow [2023-08-26 07:28:24,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:24,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:28:24,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:28:24,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 07:28:24,902 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:28:24,902 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:28:24,902 INFO L85 PathProgramCache]: Analyzing trace with hash -920409819, now seen corresponding path program 2 times [2023-08-26 07:28:24,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:28:24,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787355316] [2023-08-26 07:28:24,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:28:24,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:28:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:28:25,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:28:25,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:28:25,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787355316] [2023-08-26 07:28:25,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787355316] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:28:25,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:28:25,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:28:25,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805498368] [2023-08-26 07:28:25,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:28:25,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:28:25,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:28:25,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:28:25,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:28:25,216 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 410 [2023-08-26 07:28:25,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 559 transitions, 3560 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:25,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:28:25,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 410 [2023-08-26 07:28:25,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:28:30,705 INFO L124 PetriNetUnfolderBase]: 16610/34424 cut-off events. [2023-08-26 07:28:30,705 INFO L125 PetriNetUnfolderBase]: For 30637/30637 co-relation queries the response was YES. [2023-08-26 07:28:30,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102680 conditions, 34424 events. 16610/34424 cut-off events. For 30637/30637 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 287747 event pairs, 2538 based on Foata normal form. 0/30246 useless extension candidates. Maximal degree in co-relation 102648. Up to 19688 conditions per place. [2023-08-26 07:28:30,890 INFO L140 encePairwiseOnDemand]: 368/410 looper letters, 1201 selfloop transitions, 206 changer transitions 4/1416 dead transitions. [2023-08-26 07:28:30,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 1416 transitions, 10291 flow [2023-08-26 07:28:30,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-26 07:28:30,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-26 07:28:30,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 3239 transitions. [2023-08-26 07:28:30,897 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34347826086956523 [2023-08-26 07:28:30,897 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 3239 transitions. [2023-08-26 07:28:30,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 3239 transitions. [2023-08-26 07:28:30,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:28:30,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 3239 transitions. [2023-08-26 07:28:30,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 140.82608695652175) internal successors, (3239), 23 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:30,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 410.0) internal successors, (9840), 24 states have internal predecessors, (9840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:30,914 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 410.0) internal successors, (9840), 24 states have internal predecessors, (9840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:30,914 INFO L175 Difference]: Start difference. First operand has 185 places, 559 transitions, 3560 flow. Second operand 23 states and 3239 transitions. [2023-08-26 07:28:30,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 1416 transitions, 10291 flow [2023-08-26 07:28:31,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 1416 transitions, 10291 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:28:31,104 INFO L231 Difference]: Finished difference. Result has 225 places, 749 transitions, 6039 flow [2023-08-26 07:28:31,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=3560, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=6039, PETRI_PLACES=225, PETRI_TRANSITIONS=749} [2023-08-26 07:28:31,106 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 91 predicate places. [2023-08-26 07:28:31,106 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 749 transitions, 6039 flow [2023-08-26 07:28:31,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:31,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:28:31,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:28:31,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 07:28:31,110 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:28:31,110 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:28:31,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1530874218, now seen corresponding path program 1 times [2023-08-26 07:28:31,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:28:31,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628213695] [2023-08-26 07:28:31,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:28:31,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:28:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:28:31,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:28:31,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:28:31,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628213695] [2023-08-26 07:28:31,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628213695] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:28:31,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:28:31,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:28:31,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314419072] [2023-08-26 07:28:31,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:28:31,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:28:31,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:28:31,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:28:31,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:28:31,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:28:31,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 749 transitions, 6039 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:31,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:28:31,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:28:31,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:28:37,787 INFO L124 PetriNetUnfolderBase]: 16626/34440 cut-off events. [2023-08-26 07:28:37,788 INFO L125 PetriNetUnfolderBase]: For 54299/54315 co-relation queries the response was YES. [2023-08-26 07:28:37,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109108 conditions, 34440 events. 16626/34440 cut-off events. For 54299/54315 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 281491 event pairs, 10064 based on Foata normal form. 16/30260 useless extension candidates. Maximal degree in co-relation 109057. Up to 23283 conditions per place. [2023-08-26 07:28:37,995 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 785 selfloop transitions, 196 changer transitions 2/988 dead transitions. [2023-08-26 07:28:37,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 988 transitions, 9096 flow [2023-08-26 07:28:37,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:28:37,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:28:37,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1497 transitions. [2023-08-26 07:28:38,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3651219512195122 [2023-08-26 07:28:38,000 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1497 transitions. [2023-08-26 07:28:38,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1497 transitions. [2023-08-26 07:28:38,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:28:38,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1497 transitions. [2023-08-26 07:28:38,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 149.7) internal successors, (1497), 10 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:38,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:38,007 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:38,007 INFO L175 Difference]: Start difference. First operand has 225 places, 749 transitions, 6039 flow. Second operand 10 states and 1497 transitions. [2023-08-26 07:28:38,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 988 transitions, 9096 flow [2023-08-26 07:28:38,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 988 transitions, 8648 flow, removed 224 selfloop flow, removed 0 redundant places. [2023-08-26 07:28:38,359 INFO L231 Difference]: Finished difference. Result has 237 places, 756 transitions, 6121 flow [2023-08-26 07:28:38,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=5625, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6121, PETRI_PLACES=237, PETRI_TRANSITIONS=756} [2023-08-26 07:28:38,359 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 103 predicate places. [2023-08-26 07:28:38,360 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 756 transitions, 6121 flow [2023-08-26 07:28:38,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:38,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:28:38,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:28:38,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 07:28:38,360 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:28:38,361 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:28:38,361 INFO L85 PathProgramCache]: Analyzing trace with hash 471163734, now seen corresponding path program 2 times [2023-08-26 07:28:38,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:28:38,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163467805] [2023-08-26 07:28:38,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:28:38,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:28:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:28:38,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:28:38,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:28:38,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163467805] [2023-08-26 07:28:38,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163467805] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:28:38,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:28:38,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:28:38,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668242007] [2023-08-26 07:28:38,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:28:38,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:28:38,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:28:38,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:28:38,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:28:38,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:28:38,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 756 transitions, 6121 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:38,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:28:38,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:28:38,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:28:46,403 INFO L124 PetriNetUnfolderBase]: 17957/36992 cut-off events. [2023-08-26 07:28:46,403 INFO L125 PetriNetUnfolderBase]: For 58111/58111 co-relation queries the response was YES. [2023-08-26 07:28:46,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119450 conditions, 36992 events. 17957/36992 cut-off events. For 58111/58111 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 308130 event pairs, 5554 based on Foata normal form. 0/32437 useless extension candidates. Maximal degree in co-relation 119395. Up to 27638 conditions per place. [2023-08-26 07:28:46,621 INFO L140 encePairwiseOnDemand]: 378/410 looper letters, 1468 selfloop transitions, 145 changer transitions 4/1622 dead transitions. [2023-08-26 07:28:46,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 1622 transitions, 14218 flow [2023-08-26 07:28:46,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 07:28:46,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 07:28:46,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2026 transitions. [2023-08-26 07:28:46,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4117886178861789 [2023-08-26 07:28:46,625 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2026 transitions. [2023-08-26 07:28:46,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2026 transitions. [2023-08-26 07:28:46,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:28:46,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2026 transitions. [2023-08-26 07:28:46,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 168.83333333333334) internal successors, (2026), 12 states have internal predecessors, (2026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:46,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:46,634 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:46,634 INFO L175 Difference]: Start difference. First operand has 237 places, 756 transitions, 6121 flow. Second operand 12 states and 2026 transitions. [2023-08-26 07:28:46,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 1622 transitions, 14218 flow [2023-08-26 07:28:47,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 1622 transitions, 13632 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-26 07:28:47,103 INFO L231 Difference]: Finished difference. Result has 249 places, 875 transitions, 7242 flow [2023-08-26 07:28:47,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=5773, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7242, PETRI_PLACES=249, PETRI_TRANSITIONS=875} [2023-08-26 07:28:47,104 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 115 predicate places. [2023-08-26 07:28:47,104 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 875 transitions, 7242 flow [2023-08-26 07:28:47,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:47,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:28:47,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:28:47,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 07:28:47,105 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:28:47,105 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:28:47,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1945509048, now seen corresponding path program 3 times [2023-08-26 07:28:47,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:28:47,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299637543] [2023-08-26 07:28:47,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:28:47,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:28:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:28:47,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:28:47,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:28:47,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299637543] [2023-08-26 07:28:47,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299637543] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:28:47,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:28:47,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:28:47,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597656604] [2023-08-26 07:28:47,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:28:47,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:28:47,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:28:47,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:28:47,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:28:47,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:28:47,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 875 transitions, 7242 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:47,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:28:47,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:28:47,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:28:56,000 INFO L124 PetriNetUnfolderBase]: 19347/39947 cut-off events. [2023-08-26 07:28:56,000 INFO L125 PetriNetUnfolderBase]: For 73111/73115 co-relation queries the response was YES. [2023-08-26 07:28:56,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132039 conditions, 39947 events. 19347/39947 cut-off events. For 73111/73115 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 336871 event pairs, 4995 based on Foata normal form. 4/34995 useless extension candidates. Maximal degree in co-relation 131977. Up to 15333 conditions per place. [2023-08-26 07:28:56,312 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1361 selfloop transitions, 277 changer transitions 4/1647 dead transitions. [2023-08-26 07:28:56,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 1647 transitions, 14902 flow [2023-08-26 07:28:56,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 07:28:56,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 07:28:56,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1983 transitions. [2023-08-26 07:28:56,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4030487804878049 [2023-08-26 07:28:56,316 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1983 transitions. [2023-08-26 07:28:56,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1983 transitions. [2023-08-26 07:28:56,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:28:56,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1983 transitions. [2023-08-26 07:28:56,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 165.25) internal successors, (1983), 12 states have internal predecessors, (1983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:56,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:56,324 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:56,324 INFO L175 Difference]: Start difference. First operand has 249 places, 875 transitions, 7242 flow. Second operand 12 states and 1983 transitions. [2023-08-26 07:28:56,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 1647 transitions, 14902 flow [2023-08-26 07:28:57,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 1647 transitions, 14851 flow, removed 16 selfloop flow, removed 1 redundant places. [2023-08-26 07:28:57,026 INFO L231 Difference]: Finished difference. Result has 266 places, 1004 transitions, 9524 flow [2023-08-26 07:28:57,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=7199, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=875, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=601, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9524, PETRI_PLACES=266, PETRI_TRANSITIONS=1004} [2023-08-26 07:28:57,027 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 132 predicate places. [2023-08-26 07:28:57,027 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 1004 transitions, 9524 flow [2023-08-26 07:28:57,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:57,028 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:28:57,028 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:28:57,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 07:28:57,028 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:28:57,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:28:57,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1284896658, now seen corresponding path program 4 times [2023-08-26 07:28:57,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:28:57,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753185043] [2023-08-26 07:28:57,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:28:57,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:28:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:28:57,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:28:57,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:28:57,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753185043] [2023-08-26 07:28:57,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753185043] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:28:57,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:28:57,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:28:57,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673308393] [2023-08-26 07:28:57,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:28:57,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:28:57,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:28:57,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:28:57,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:28:57,324 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:28:57,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 1004 transitions, 9524 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:28:57,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:28:57,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:28:57,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:29:07,381 INFO L124 PetriNetUnfolderBase]: 19383/39996 cut-off events. [2023-08-26 07:29:07,381 INFO L125 PetriNetUnfolderBase]: For 85202/85226 co-relation queries the response was YES. [2023-08-26 07:29:07,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136951 conditions, 39996 events. 19383/39996 cut-off events. For 85202/85226 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 332389 event pairs, 12071 based on Foata normal form. 24/35052 useless extension candidates. Maximal degree in co-relation 136882. Up to 23297 conditions per place. [2023-08-26 07:29:07,659 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 832 selfloop transitions, 429 changer transitions 2/1268 dead transitions. [2023-08-26 07:29:07,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 1268 transitions, 13419 flow [2023-08-26 07:29:07,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 07:29:07,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 07:29:07,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1723 transitions. [2023-08-26 07:29:07,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35020325203252034 [2023-08-26 07:29:07,662 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1723 transitions. [2023-08-26 07:29:07,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1723 transitions. [2023-08-26 07:29:07,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:29:07,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1723 transitions. [2023-08-26 07:29:07,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 143.58333333333334) internal successors, (1723), 12 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:07,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:07,669 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:07,669 INFO L175 Difference]: Start difference. First operand has 266 places, 1004 transitions, 9524 flow. Second operand 12 states and 1723 transitions. [2023-08-26 07:29:07,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 1268 transitions, 13419 flow [2023-08-26 07:29:08,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 1268 transitions, 13342 flow, removed 31 selfloop flow, removed 1 redundant places. [2023-08-26 07:29:08,352 INFO L231 Difference]: Finished difference. Result has 282 places, 1021 transitions, 10743 flow [2023-08-26 07:29:08,352 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=9450, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1004, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=412, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=10743, PETRI_PLACES=282, PETRI_TRANSITIONS=1021} [2023-08-26 07:29:08,353 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 148 predicate places. [2023-08-26 07:29:08,353 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 1021 transitions, 10743 flow [2023-08-26 07:29:08,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:08,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:29:08,353 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:29:08,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 07:29:08,354 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:29:08,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:29:08,354 INFO L85 PathProgramCache]: Analyzing trace with hash 182703382, now seen corresponding path program 5 times [2023-08-26 07:29:08,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:29:08,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517856459] [2023-08-26 07:29:08,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:29:08,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:29:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:29:08,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:29:08,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:29:08,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517856459] [2023-08-26 07:29:08,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517856459] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:29:08,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:29:08,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:29:08,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545296491] [2023-08-26 07:29:08,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:29:08,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:29:08,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:29:08,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:29:08,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:29:08,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:29:08,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 1021 transitions, 10743 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:08,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:29:08,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:29:08,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:29:18,509 INFO L124 PetriNetUnfolderBase]: 19455/40158 cut-off events. [2023-08-26 07:29:18,509 INFO L125 PetriNetUnfolderBase]: For 99139/99143 co-relation queries the response was YES. [2023-08-26 07:29:18,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142409 conditions, 40158 events. 19455/40158 cut-off events. For 99139/99143 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 340769 event pairs, 2650 based on Foata normal form. 4/35201 useless extension candidates. Maximal degree in co-relation 142334. Up to 19683 conditions per place. [2023-08-26 07:29:18,802 INFO L140 encePairwiseOnDemand]: 377/410 looper letters, 1501 selfloop transitions, 178 changer transitions 4/1688 dead transitions. [2023-08-26 07:29:18,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 1688 transitions, 17996 flow [2023-08-26 07:29:18,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-26 07:29:18,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-26 07:29:18,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2171 transitions. [2023-08-26 07:29:18,805 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3782229965156794 [2023-08-26 07:29:18,805 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2171 transitions. [2023-08-26 07:29:18,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2171 transitions. [2023-08-26 07:29:18,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:29:18,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2171 transitions. [2023-08-26 07:29:18,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 155.07142857142858) internal successors, (2171), 14 states have internal predecessors, (2171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:18,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:18,812 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:18,812 INFO L175 Difference]: Start difference. First operand has 282 places, 1021 transitions, 10743 flow. Second operand 14 states and 2171 transitions. [2023-08-26 07:29:18,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 1688 transitions, 17996 flow [2023-08-26 07:29:19,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 1688 transitions, 17114 flow, removed 32 selfloop flow, removed 5 redundant places. [2023-08-26 07:29:19,623 INFO L231 Difference]: Finished difference. Result has 295 places, 1130 transitions, 12013 flow [2023-08-26 07:29:19,623 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=10035, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1021, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=846, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=12013, PETRI_PLACES=295, PETRI_TRANSITIONS=1130} [2023-08-26 07:29:19,624 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 161 predicate places. [2023-08-26 07:29:19,624 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 1130 transitions, 12013 flow [2023-08-26 07:29:19,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:19,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:29:19,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:29:19,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 07:29:19,624 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:29:19,625 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:29:19,625 INFO L85 PathProgramCache]: Analyzing trace with hash -494380147, now seen corresponding path program 3 times [2023-08-26 07:29:19,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:29:19,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361782128] [2023-08-26 07:29:19,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:29:19,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:29:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:29:19,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:29:19,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:29:19,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361782128] [2023-08-26 07:29:19,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361782128] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:29:19,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:29:19,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:29:19,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604859837] [2023-08-26 07:29:19,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:29:19,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:29:19,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:29:19,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:29:19,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:29:19,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 410 [2023-08-26 07:29:19,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 1130 transitions, 12013 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:19,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:29:19,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 410 [2023-08-26 07:29:19,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:29:31,129 INFO L124 PetriNetUnfolderBase]: 19437/40008 cut-off events. [2023-08-26 07:29:31,129 INFO L125 PetriNetUnfolderBase]: For 122456/122462 co-relation queries the response was YES. [2023-08-26 07:29:31,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144878 conditions, 40008 events. 19437/40008 cut-off events. For 122456/122462 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 338546 event pairs, 4549 based on Foata normal form. 6/35075 useless extension candidates. Maximal degree in co-relation 144798. Up to 28861 conditions per place. [2023-08-26 07:29:31,468 INFO L140 encePairwiseOnDemand]: 362/410 looper letters, 1387 selfloop transitions, 670 changer transitions 4/2066 dead transitions. [2023-08-26 07:29:31,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 2066 transitions, 21389 flow [2023-08-26 07:29:31,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-08-26 07:29:31,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2023-08-26 07:29:31,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 4526 transitions. [2023-08-26 07:29:31,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34496951219512195 [2023-08-26 07:29:31,472 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 4526 transitions. [2023-08-26 07:29:31,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 4526 transitions. [2023-08-26 07:29:31,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:29:31,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 4526 transitions. [2023-08-26 07:29:31,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 141.4375) internal successors, (4526), 32 states have internal predecessors, (4526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:31,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 410.0) internal successors, (13530), 33 states have internal predecessors, (13530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:31,632 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 410.0) internal successors, (13530), 33 states have internal predecessors, (13530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:31,632 INFO L175 Difference]: Start difference. First operand has 295 places, 1130 transitions, 12013 flow. Second operand 32 states and 4526 transitions. [2023-08-26 07:29:31,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 2066 transitions, 21389 flow [2023-08-26 07:29:32,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 2066 transitions, 20873 flow, removed 182 selfloop flow, removed 7 redundant places. [2023-08-26 07:29:32,613 INFO L231 Difference]: Finished difference. Result has 327 places, 1324 transitions, 15581 flow [2023-08-26 07:29:32,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=11609, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=476, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=15581, PETRI_PLACES=327, PETRI_TRANSITIONS=1324} [2023-08-26 07:29:32,614 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 193 predicate places. [2023-08-26 07:29:32,615 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 1324 transitions, 15581 flow [2023-08-26 07:29:32,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:32,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:29:32,615 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:29:32,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 07:29:32,615 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:29:32,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:29:32,615 INFO L85 PathProgramCache]: Analyzing trace with hash 895307170, now seen corresponding path program 6 times [2023-08-26 07:29:32,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:29:32,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392359467] [2023-08-26 07:29:32,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:29:32,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:29:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:29:32,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:29:32,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:29:32,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392359467] [2023-08-26 07:29:32,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392359467] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:29:32,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:29:32,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:29:32,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090671862] [2023-08-26 07:29:32,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:29:32,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:29:32,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:29:32,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:29:32,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:29:32,861 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:29:32,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 1324 transitions, 15581 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:32,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:29:32,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:29:32,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:29:44,043 INFO L124 PetriNetUnfolderBase]: 19458/40158 cut-off events. [2023-08-26 07:29:44,044 INFO L125 PetriNetUnfolderBase]: For 140393/140421 co-relation queries the response was YES. [2023-08-26 07:29:44,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150659 conditions, 40158 events. 19458/40158 cut-off events. For 140393/140421 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 333742 event pairs, 12019 based on Foata normal form. 28/35228 useless extension candidates. Maximal degree in co-relation 150571. Up to 23490 conditions per place. [2023-08-26 07:29:44,404 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 968 selfloop transitions, 541 changer transitions 2/1516 dead transitions. [2023-08-26 07:29:44,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 1516 transitions, 19846 flow [2023-08-26 07:29:44,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:29:44,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:29:44,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1402 transitions. [2023-08-26 07:29:44,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.34195121951219515 [2023-08-26 07:29:44,406 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1402 transitions. [2023-08-26 07:29:44,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1402 transitions. [2023-08-26 07:29:44,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:29:44,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1402 transitions. [2023-08-26 07:29:44,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:44,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:44,410 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:44,410 INFO L175 Difference]: Start difference. First operand has 327 places, 1324 transitions, 15581 flow. Second operand 10 states and 1402 transitions. [2023-08-26 07:29:44,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 1516 transitions, 19846 flow [2023-08-26 07:29:45,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 1516 transitions, 18933 flow, removed 409 selfloop flow, removed 4 redundant places. [2023-08-26 07:29:45,695 INFO L231 Difference]: Finished difference. Result has 337 places, 1336 transitions, 16396 flow [2023-08-26 07:29:45,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=14732, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=530, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=788, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16396, PETRI_PLACES=337, PETRI_TRANSITIONS=1336} [2023-08-26 07:29:45,696 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 203 predicate places. [2023-08-26 07:29:45,697 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 1336 transitions, 16396 flow [2023-08-26 07:29:45,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:45,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:29:45,697 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:29:45,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 07:29:45,697 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:29:45,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:29:45,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1045145788, now seen corresponding path program 7 times [2023-08-26 07:29:45,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:29:45,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580271451] [2023-08-26 07:29:45,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:29:45,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:29:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:29:46,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:29:46,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:29:46,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580271451] [2023-08-26 07:29:46,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580271451] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:29:46,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:29:46,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:29:46,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606503019] [2023-08-26 07:29:46,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:29:46,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:29:46,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:29:46,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:29:46,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:29:46,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:29:46,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 1336 transitions, 16396 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:46,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:29:46,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:29:46,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:29:57,271 INFO L124 PetriNetUnfolderBase]: 19605/40511 cut-off events. [2023-08-26 07:29:57,271 INFO L125 PetriNetUnfolderBase]: For 133428/133436 co-relation queries the response was YES. [2023-08-26 07:29:57,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152833 conditions, 40511 events. 19605/40511 cut-off events. For 133428/133436 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 343483 event pairs, 3297 based on Foata normal form. 8/35550 useless extension candidates. Maximal degree in co-relation 152739. Up to 19647 conditions per place. [2023-08-26 07:29:57,631 INFO L140 encePairwiseOnDemand]: 369/410 looper letters, 1611 selfloop transitions, 226 changer transitions 4/1846 dead transitions. [2023-08-26 07:29:57,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 1846 transitions, 23455 flow [2023-08-26 07:29:57,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 07:29:57,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 07:29:57,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1818 transitions. [2023-08-26 07:29:57,633 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3695121951219512 [2023-08-26 07:29:57,633 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1818 transitions. [2023-08-26 07:29:57,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1818 transitions. [2023-08-26 07:29:57,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:29:57,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1818 transitions. [2023-08-26 07:29:57,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 151.5) internal successors, (1818), 12 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:57,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:57,638 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:57,638 INFO L175 Difference]: Start difference. First operand has 337 places, 1336 transitions, 16396 flow. Second operand 12 states and 1818 transitions. [2023-08-26 07:29:57,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 1846 transitions, 23455 flow [2023-08-26 07:29:58,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 1846 transitions, 22484 flow, removed 34 selfloop flow, removed 5 redundant places. [2023-08-26 07:29:58,932 INFO L231 Difference]: Finished difference. Result has 349 places, 1386 transitions, 17037 flow [2023-08-26 07:29:58,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=15482, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=17037, PETRI_PLACES=349, PETRI_TRANSITIONS=1386} [2023-08-26 07:29:58,933 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 215 predicate places. [2023-08-26 07:29:58,933 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 1386 transitions, 17037 flow [2023-08-26 07:29:58,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:58,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:29:58,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:29:58,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 07:29:58,933 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:29:58,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:29:58,934 INFO L85 PathProgramCache]: Analyzing trace with hash -2009927556, now seen corresponding path program 8 times [2023-08-26 07:29:58,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:29:58,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860456264] [2023-08-26 07:29:58,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:29:58,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:29:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:29:59,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:29:59,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:29:59,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860456264] [2023-08-26 07:29:59,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860456264] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:29:59,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:29:59,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:29:59,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261427329] [2023-08-26 07:29:59,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:29:59,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:29:59,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:29:59,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:29:59,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:29:59,151 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:29:59,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 1386 transitions, 17037 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:29:59,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:29:59,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:29:59,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:30:11,103 INFO L124 PetriNetUnfolderBase]: 19680/40642 cut-off events. [2023-08-26 07:30:11,103 INFO L125 PetriNetUnfolderBase]: For 175463/175471 co-relation queries the response was YES. [2023-08-26 07:30:11,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156528 conditions, 40642 events. 19680/40642 cut-off events. For 175463/175471 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 342893 event pairs, 5335 based on Foata normal form. 27/35964 useless extension candidates. Maximal degree in co-relation 156429. Up to 15885 conditions per place. [2023-08-26 07:30:11,666 INFO L140 encePairwiseOnDemand]: 378/410 looper letters, 2247 selfloop transitions, 176 changer transitions 6/2434 dead transitions. [2023-08-26 07:30:11,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 2434 transitions, 29582 flow [2023-08-26 07:30:11,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-26 07:30:11,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-26 07:30:11,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2387 transitions. [2023-08-26 07:30:11,669 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41585365853658535 [2023-08-26 07:30:11,669 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2387 transitions. [2023-08-26 07:30:11,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2387 transitions. [2023-08-26 07:30:11,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:30:11,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2387 transitions. [2023-08-26 07:30:11,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 170.5) internal successors, (2387), 14 states have internal predecessors, (2387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:11,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:11,674 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:11,674 INFO L175 Difference]: Start difference. First operand has 349 places, 1386 transitions, 17037 flow. Second operand 14 states and 2387 transitions. [2023-08-26 07:30:11,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 2434 transitions, 29582 flow [2023-08-26 07:30:13,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 2434 transitions, 29267 flow, removed 116 selfloop flow, removed 3 redundant places. [2023-08-26 07:30:13,068 INFO L231 Difference]: Finished difference. Result has 366 places, 1497 transitions, 19161 flow [2023-08-26 07:30:13,069 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=16722, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=19161, PETRI_PLACES=366, PETRI_TRANSITIONS=1497} [2023-08-26 07:30:13,069 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 232 predicate places. [2023-08-26 07:30:13,069 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 1497 transitions, 19161 flow [2023-08-26 07:30:13,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:13,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:30:13,070 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:30:13,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 07:30:13,070 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:30:13,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:30:13,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1952860698, now seen corresponding path program 9 times [2023-08-26 07:30:13,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:30:13,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241666999] [2023-08-26 07:30:13,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:30:13,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:30:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:30:13,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:30:13,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:30:13,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241666999] [2023-08-26 07:30:13,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241666999] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:30:13,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:30:13,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:30:13,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353042871] [2023-08-26 07:30:13,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:30:13,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:30:13,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:30:13,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:30:13,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:30:13,320 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:30:13,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 1497 transitions, 19161 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:13,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:30:13,320 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:30:13,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:30:26,521 INFO L124 PetriNetUnfolderBase]: 19715/40729 cut-off events. [2023-08-26 07:30:26,522 INFO L125 PetriNetUnfolderBase]: For 216512/216524 co-relation queries the response was YES. [2023-08-26 07:30:26,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161055 conditions, 40729 events. 19715/40729 cut-off events. For 216512/216524 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 342915 event pairs, 6066 based on Foata normal form. 31/36051 useless extension candidates. Maximal degree in co-relation 160949. Up to 15885 conditions per place. [2023-08-26 07:30:27,051 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1747 selfloop transitions, 411 changer transitions 4/2167 dead transitions. [2023-08-26 07:30:27,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 2167 transitions, 27990 flow [2023-08-26 07:30:27,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-26 07:30:27,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-26 07:30:27,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2104 transitions. [2023-08-26 07:30:27,053 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3947467166979362 [2023-08-26 07:30:27,053 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2104 transitions. [2023-08-26 07:30:27,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2104 transitions. [2023-08-26 07:30:27,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:30:27,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2104 transitions. [2023-08-26 07:30:27,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 161.84615384615384) internal successors, (2104), 13 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:27,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:27,058 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:27,058 INFO L175 Difference]: Start difference. First operand has 366 places, 1497 transitions, 19161 flow. Second operand 13 states and 2104 transitions. [2023-08-26 07:30:27,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 2167 transitions, 27990 flow [2023-08-26 07:30:28,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 2167 transitions, 27493 flow, removed 205 selfloop flow, removed 4 redundant places. [2023-08-26 07:30:28,607 INFO L231 Difference]: Finished difference. Result has 378 places, 1510 transitions, 19985 flow [2023-08-26 07:30:28,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=18670, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=398, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1089, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=19985, PETRI_PLACES=378, PETRI_TRANSITIONS=1510} [2023-08-26 07:30:28,608 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 244 predicate places. [2023-08-26 07:30:28,608 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 1510 transitions, 19985 flow [2023-08-26 07:30:28,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:28,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:30:28,609 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:30:28,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 07:30:28,609 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:30:28,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:30:28,609 INFO L85 PathProgramCache]: Analyzing trace with hash 337311342, now seen corresponding path program 10 times [2023-08-26 07:30:28,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:30:28,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520907564] [2023-08-26 07:30:28,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:30:28,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:30:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:30:28,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:30:28,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:30:28,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520907564] [2023-08-26 07:30:28,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520907564] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:30:28,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:30:28,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:30:28,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875603746] [2023-08-26 07:30:28,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:30:28,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:30:28,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:30:28,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:30:28,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:30:28,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:30:28,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 1510 transitions, 19985 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:28,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:30:28,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:30:28,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:30:41,518 INFO L124 PetriNetUnfolderBase]: 19768/40778 cut-off events. [2023-08-26 07:30:41,518 INFO L125 PetriNetUnfolderBase]: For 238655/238687 co-relation queries the response was YES. [2023-08-26 07:30:41,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164555 conditions, 40778 events. 19768/40778 cut-off events. For 238655/238687 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 339093 event pairs, 12043 based on Foata normal form. 50/36102 useless extension candidates. Maximal degree in co-relation 164445. Up to 23794 conditions per place. [2023-08-26 07:30:41,922 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1080 selfloop transitions, 680 changer transitions 2/1767 dead transitions. [2023-08-26 07:30:41,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 1767 transitions, 25788 flow [2023-08-26 07:30:41,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:30:41,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:30:41,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1396 transitions. [2023-08-26 07:30:41,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3404878048780488 [2023-08-26 07:30:41,924 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1396 transitions. [2023-08-26 07:30:41,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1396 transitions. [2023-08-26 07:30:41,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:30:41,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1396 transitions. [2023-08-26 07:30:41,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 139.6) internal successors, (1396), 10 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:41,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:41,927 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:41,927 INFO L175 Difference]: Start difference. First operand has 378 places, 1510 transitions, 19985 flow. Second operand 10 states and 1396 transitions. [2023-08-26 07:30:41,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 1767 transitions, 25788 flow [2023-08-26 07:30:43,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 1767 transitions, 25024 flow, removed 72 selfloop flow, removed 7 redundant places. [2023-08-26 07:30:43,627 INFO L231 Difference]: Finished difference. Result has 386 places, 1545 transitions, 22075 flow [2023-08-26 07:30:43,628 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=19223, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=649, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=837, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22075, PETRI_PLACES=386, PETRI_TRANSITIONS=1545} [2023-08-26 07:30:43,628 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 252 predicate places. [2023-08-26 07:30:43,629 INFO L495 AbstractCegarLoop]: Abstraction has has 386 places, 1545 transitions, 22075 flow [2023-08-26 07:30:43,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:43,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:30:43,629 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:30:43,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 07:30:43,629 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:30:43,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:30:43,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1186330089, now seen corresponding path program 4 times [2023-08-26 07:30:43,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:30:43,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80013159] [2023-08-26 07:30:43,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:30:43,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:30:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:30:43,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:30:43,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:30:43,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80013159] [2023-08-26 07:30:43,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80013159] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:30:43,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:30:43,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:30:43,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712818577] [2023-08-26 07:30:43,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:30:43,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:30:43,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:30:43,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:30:43,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:30:43,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 410 [2023-08-26 07:30:43,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 1545 transitions, 22075 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:43,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:30:43,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 410 [2023-08-26 07:30:43,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:30:57,507 INFO L124 PetriNetUnfolderBase]: 19745/40771 cut-off events. [2023-08-26 07:30:57,508 INFO L125 PetriNetUnfolderBase]: For 264356/264356 co-relation queries the response was YES. [2023-08-26 07:30:57,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167487 conditions, 40771 events. 19745/40771 cut-off events. For 264356/264356 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 343521 event pairs, 5346 based on Foata normal form. 0/36083 useless extension candidates. Maximal degree in co-relation 167371. Up to 15991 conditions per place. [2023-08-26 07:30:57,945 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 2296 selfloop transitions, 227 changer transitions 6/2534 dead transitions. [2023-08-26 07:30:57,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 2534 transitions, 34192 flow [2023-08-26 07:30:57,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-26 07:30:57,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-26 07:30:57,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3335 transitions. [2023-08-26 07:30:57,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3697339246119734 [2023-08-26 07:30:57,949 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3335 transitions. [2023-08-26 07:30:57,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3335 transitions. [2023-08-26 07:30:57,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:30:57,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3335 transitions. [2023-08-26 07:30:57,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 151.5909090909091) internal successors, (3335), 22 states have internal predecessors, (3335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:57,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 410.0) internal successors, (9430), 23 states have internal predecessors, (9430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:57,956 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 410.0) internal successors, (9430), 23 states have internal predecessors, (9430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:30:57,956 INFO L175 Difference]: Start difference. First operand has 386 places, 1545 transitions, 22075 flow. Second operand 22 states and 3335 transitions. [2023-08-26 07:30:57,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 2534 transitions, 34192 flow [2023-08-26 07:31:00,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 2534 transitions, 33554 flow, removed 319 selfloop flow, removed 0 redundant places. [2023-08-26 07:31:00,291 INFO L231 Difference]: Finished difference. Result has 421 places, 1697 transitions, 24721 flow [2023-08-26 07:31:00,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=21657, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=24721, PETRI_PLACES=421, PETRI_TRANSITIONS=1697} [2023-08-26 07:31:00,292 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 287 predicate places. [2023-08-26 07:31:00,292 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 1697 transitions, 24721 flow [2023-08-26 07:31:00,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:00,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:31:00,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:31:00,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-26 07:31:00,293 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:31:00,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:31:00,293 INFO L85 PathProgramCache]: Analyzing trace with hash 187460550, now seen corresponding path program 11 times [2023-08-26 07:31:00,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:31:00,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636636877] [2023-08-26 07:31:00,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:31:00,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:31:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:31:00,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:31:00,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:31:00,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636636877] [2023-08-26 07:31:00,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636636877] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:31:00,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:31:00,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:31:00,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623061804] [2023-08-26 07:31:00,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:31:00,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:31:00,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:31:00,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:31:00,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:31:00,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:31:00,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 1697 transitions, 24721 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:00,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:31:00,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:31:00,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:31:15,279 INFO L124 PetriNetUnfolderBase]: 19779/40800 cut-off events. [2023-08-26 07:31:15,280 INFO L125 PetriNetUnfolderBase]: For 253854/253862 co-relation queries the response was YES. [2023-08-26 07:31:15,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169366 conditions, 40800 events. 19779/40800 cut-off events. For 253854/253862 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 344488 event pairs, 4144 based on Foata normal form. 26/36133 useless extension candidates. Maximal degree in co-relation 169235. Up to 19821 conditions per place. [2023-08-26 07:31:15,759 INFO L140 encePairwiseOnDemand]: 369/410 looper letters, 1924 selfloop transitions, 232 changer transitions 4/2165 dead transitions. [2023-08-26 07:31:15,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 432 places, 2165 transitions, 32037 flow [2023-08-26 07:31:15,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 07:31:15,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 07:31:15,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1851 transitions. [2023-08-26 07:31:15,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37621951219512195 [2023-08-26 07:31:15,763 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1851 transitions. [2023-08-26 07:31:15,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1851 transitions. [2023-08-26 07:31:15,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:31:15,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1851 transitions. [2023-08-26 07:31:15,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 154.25) internal successors, (1851), 12 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:15,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:15,767 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:15,767 INFO L175 Difference]: Start difference. First operand has 421 places, 1697 transitions, 24721 flow. Second operand 12 states and 1851 transitions. [2023-08-26 07:31:15,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 432 places, 2165 transitions, 32037 flow [2023-08-26 07:31:18,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 2165 transitions, 31145 flow, removed 354 selfloop flow, removed 8 redundant places. [2023-08-26 07:31:18,184 INFO L231 Difference]: Finished difference. Result has 429 places, 1719 transitions, 24951 flow [2023-08-26 07:31:18,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=23833, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=24951, PETRI_PLACES=429, PETRI_TRANSITIONS=1719} [2023-08-26 07:31:18,185 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 295 predicate places. [2023-08-26 07:31:18,185 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 1719 transitions, 24951 flow [2023-08-26 07:31:18,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:18,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:31:18,185 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:31:18,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-26 07:31:18,186 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:31:18,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:31:18,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1147485150, now seen corresponding path program 12 times [2023-08-26 07:31:18,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:31:18,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874302298] [2023-08-26 07:31:18,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:31:18,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:31:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:31:18,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:31:18,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:31:18,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874302298] [2023-08-26 07:31:18,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874302298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:31:18,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:31:18,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:31:18,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942551573] [2023-08-26 07:31:18,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:31:18,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:31:18,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:31:18,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:31:18,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:31:18,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:31:18,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 1719 transitions, 24951 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:18,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:31:18,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:31:18,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:31:32,770 INFO L124 PetriNetUnfolderBase]: 19832/40920 cut-off events. [2023-08-26 07:31:32,771 INFO L125 PetriNetUnfolderBase]: For 257113/257125 co-relation queries the response was YES. [2023-08-26 07:31:33,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170214 conditions, 40920 events. 19832/40920 cut-off events. For 257113/257125 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 345538 event pairs, 5078 based on Foata normal form. 30/36258 useless extension candidates. Maximal degree in co-relation 170079. Up to 16059 conditions per place. [2023-08-26 07:31:33,294 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1814 selfloop transitions, 440 changer transitions 4/2263 dead transitions. [2023-08-26 07:31:33,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 2263 transitions, 33299 flow [2023-08-26 07:31:33,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 07:31:33,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 07:31:33,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1882 transitions. [2023-08-26 07:31:33,296 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.382520325203252 [2023-08-26 07:31:33,296 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1882 transitions. [2023-08-26 07:31:33,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1882 transitions. [2023-08-26 07:31:33,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:31:33,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1882 transitions. [2023-08-26 07:31:33,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 156.83333333333334) internal successors, (1882), 12 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:33,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:33,301 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:33,301 INFO L175 Difference]: Start difference. First operand has 429 places, 1719 transitions, 24951 flow. Second operand 12 states and 1882 transitions. [2023-08-26 07:31:33,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 2263 transitions, 33299 flow [2023-08-26 07:31:35,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 2263 transitions, 32927 flow, removed 122 selfloop flow, removed 4 redundant places. [2023-08-26 07:31:36,004 INFO L231 Difference]: Finished difference. Result has 441 places, 1752 transitions, 26762 flow [2023-08-26 07:31:36,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=24579, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1719, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=410, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=26762, PETRI_PLACES=441, PETRI_TRANSITIONS=1752} [2023-08-26 07:31:36,006 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 307 predicate places. [2023-08-26 07:31:36,006 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 1752 transitions, 26762 flow [2023-08-26 07:31:36,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:36,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:31:36,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:31:36,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-26 07:31:36,006 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:31:36,006 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:31:36,006 INFO L85 PathProgramCache]: Analyzing trace with hash -2005001128, now seen corresponding path program 13 times [2023-08-26 07:31:36,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:31:36,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951499372] [2023-08-26 07:31:36,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:31:36,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:31:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:31:36,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:31:36,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:31:36,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951499372] [2023-08-26 07:31:36,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951499372] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:31:36,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:31:36,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:31:36,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055114536] [2023-08-26 07:31:36,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:31:36,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:31:36,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:31:36,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:31:36,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:31:36,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:31:36,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 1752 transitions, 26762 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:36,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:31:36,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:31:36,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:31:51,463 INFO L124 PetriNetUnfolderBase]: 19814/40800 cut-off events. [2023-08-26 07:31:51,463 INFO L125 PetriNetUnfolderBase]: For 281788/281800 co-relation queries the response was YES. [2023-08-26 07:31:51,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172640 conditions, 40800 events. 19814/40800 cut-off events. For 281788/281800 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 341800 event pairs, 6076 based on Foata normal form. 30/36138 useless extension candidates. Maximal degree in co-relation 172500. Up to 16059 conditions per place. [2023-08-26 07:31:52,033 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1857 selfloop transitions, 454 changer transitions 4/2320 dead transitions. [2023-08-26 07:31:52,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 2320 transitions, 34700 flow [2023-08-26 07:31:52,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-26 07:31:52,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-26 07:31:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2223 transitions. [2023-08-26 07:31:52,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3872822299651568 [2023-08-26 07:31:52,035 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2223 transitions. [2023-08-26 07:31:52,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2223 transitions. [2023-08-26 07:31:52,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:31:52,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2223 transitions. [2023-08-26 07:31:52,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 158.78571428571428) internal successors, (2223), 14 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:52,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:52,040 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:52,040 INFO L175 Difference]: Start difference. First operand has 441 places, 1752 transitions, 26762 flow. Second operand 14 states and 2223 transitions. [2023-08-26 07:31:52,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 2320 transitions, 34700 flow [2023-08-26 07:31:55,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 2320 transitions, 33773 flow, removed 240 selfloop flow, removed 4 redundant places. [2023-08-26 07:31:55,089 INFO L231 Difference]: Finished difference. Result has 456 places, 1771 transitions, 27626 flow [2023-08-26 07:31:55,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=25898, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=436, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=27626, PETRI_PLACES=456, PETRI_TRANSITIONS=1771} [2023-08-26 07:31:55,090 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 322 predicate places. [2023-08-26 07:31:55,090 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 1771 transitions, 27626 flow [2023-08-26 07:31:55,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:55,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:31:55,090 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:31:55,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-26 07:31:55,090 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:31:55,090 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:31:55,091 INFO L85 PathProgramCache]: Analyzing trace with hash -149475660, now seen corresponding path program 14 times [2023-08-26 07:31:55,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:31:55,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322052754] [2023-08-26 07:31:55,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:31:55,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:31:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:31:55,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:31:55,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:31:55,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322052754] [2023-08-26 07:31:55,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322052754] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:31:55,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:31:55,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:31:55,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164739025] [2023-08-26 07:31:55,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:31:55,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:31:55,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:31:55,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:31:55,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:31:55,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:31:55,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 1771 transitions, 27626 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:31:55,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:31:55,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:31:55,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:32:10,392 INFO L124 PetriNetUnfolderBase]: 19796/40872 cut-off events. [2023-08-26 07:32:10,392 INFO L125 PetriNetUnfolderBase]: For 288458/288466 co-relation queries the response was YES. [2023-08-26 07:32:10,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174142 conditions, 40872 events. 19796/40872 cut-off events. For 288458/288466 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 344308 event pairs, 5214 based on Foata normal form. 26/36205 useless extension candidates. Maximal degree in co-relation 173996. Up to 19891 conditions per place. [2023-08-26 07:32:10,977 INFO L140 encePairwiseOnDemand]: 369/410 looper letters, 1996 selfloop transitions, 236 changer transitions 4/2241 dead transitions. [2023-08-26 07:32:10,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 2241 transitions, 34768 flow [2023-08-26 07:32:10,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-26 07:32:10,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-26 07:32:10,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2036 transitions. [2023-08-26 07:32:10,979 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3819887429643527 [2023-08-26 07:32:10,979 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2036 transitions. [2023-08-26 07:32:10,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2036 transitions. [2023-08-26 07:32:10,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:32:10,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2036 transitions. [2023-08-26 07:32:10,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 156.6153846153846) internal successors, (2036), 13 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:32:10,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:32:10,984 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:32:10,984 INFO L175 Difference]: Start difference. First operand has 456 places, 1771 transitions, 27626 flow. Second operand 13 states and 2036 transitions. [2023-08-26 07:32:10,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 2241 transitions, 34768 flow [2023-08-26 07:32:14,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 463 places, 2241 transitions, 34302 flow, removed 136 selfloop flow, removed 5 redundant places. [2023-08-26 07:32:14,317 INFO L231 Difference]: Finished difference. Result has 468 places, 1785 transitions, 28138 flow [2023-08-26 07:32:14,318 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=27180, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1771, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=224, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=28138, PETRI_PLACES=468, PETRI_TRANSITIONS=1785} [2023-08-26 07:32:14,319 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 334 predicate places. [2023-08-26 07:32:14,319 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 1785 transitions, 28138 flow [2023-08-26 07:32:14,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:32:14,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:32:14,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:32:14,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-26 07:32:14,319 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:32:14,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:32:14,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1239595030, now seen corresponding path program 15 times [2023-08-26 07:32:14,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:32:14,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016877791] [2023-08-26 07:32:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:32:14,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:32:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:32:14,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:32:14,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:32:14,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016877791] [2023-08-26 07:32:14,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016877791] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:32:14,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:32:14,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:32:14,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983866047] [2023-08-26 07:32:14,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:32:14,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:32:14,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:32:14,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:32:14,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:32:14,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:32:14,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 1785 transitions, 28138 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:32:14,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:32:14,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:32:14,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:32:29,437 INFO L124 PetriNetUnfolderBase]: 19898/40991 cut-off events. [2023-08-26 07:32:29,438 INFO L125 PetriNetUnfolderBase]: For 304296/304334 co-relation queries the response was YES. [2023-08-26 07:32:29,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177299 conditions, 40991 events. 19898/40991 cut-off events. For 304296/304334 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 338937 event pairs, 13139 based on Foata normal form. 56/36337 useless extension candidates. Maximal degree in co-relation 177148. Up to 24132 conditions per place. [2023-08-26 07:32:30,042 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1300 selfloop transitions, 718 changer transitions 2/2025 dead transitions. [2023-08-26 07:32:30,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 2025 transitions, 34069 flow [2023-08-26 07:32:30,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:32:30,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:32:30,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1430 transitions. [2023-08-26 07:32:30,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.348780487804878 [2023-08-26 07:32:30,046 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1430 transitions. [2023-08-26 07:32:30,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1430 transitions. [2023-08-26 07:32:30,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:32:30,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1430 transitions. [2023-08-26 07:32:30,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 143.0) internal successors, (1430), 10 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:32:30,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:32:30,049 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:32:30,049 INFO L175 Difference]: Start difference. First operand has 468 places, 1785 transitions, 28138 flow. Second operand 10 states and 1430 transitions. [2023-08-26 07:32:30,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 2025 transitions, 34069 flow [2023-08-26 07:32:33,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 2025 transitions, 33689 flow, removed 126 selfloop flow, removed 4 redundant places. [2023-08-26 07:32:33,398 INFO L231 Difference]: Finished difference. Result has 477 places, 1804 transitions, 29769 flow [2023-08-26 07:32:33,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=27758, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1785, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=701, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1071, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=29769, PETRI_PLACES=477, PETRI_TRANSITIONS=1804} [2023-08-26 07:32:33,400 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 343 predicate places. [2023-08-26 07:32:33,400 INFO L495 AbstractCegarLoop]: Abstraction has has 477 places, 1804 transitions, 29769 flow [2023-08-26 07:32:33,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:32:33,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:32:33,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:32:33,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-26 07:32:33,400 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:32:33,400 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:32:33,400 INFO L85 PathProgramCache]: Analyzing trace with hash -857310106, now seen corresponding path program 16 times [2023-08-26 07:32:33,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:32:33,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109563055] [2023-08-26 07:32:33,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:32:33,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:32:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:32:33,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:32:33,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:32:33,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109563055] [2023-08-26 07:32:33,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109563055] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:32:33,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:32:33,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:32:33,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146377661] [2023-08-26 07:32:33,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:32:33,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:32:33,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:32:33,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:32:33,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:32:33,697 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:32:33,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 1804 transitions, 29769 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:32:33,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:32:33,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:32:33,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:32:49,022 INFO L124 PetriNetUnfolderBase]: 19932/41059 cut-off events. [2023-08-26 07:32:49,022 INFO L125 PetriNetUnfolderBase]: For 323010/323048 co-relation queries the response was YES. [2023-08-26 07:32:49,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180069 conditions, 41059 events. 19932/41059 cut-off events. For 323010/323048 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 339487 event pairs, 13214 based on Foata normal form. 56/36403 useless extension candidates. Maximal degree in co-relation 179914. Up to 24390 conditions per place. [2023-08-26 07:32:49,619 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1272 selfloop transitions, 706 changer transitions 2/1985 dead transitions. [2023-08-26 07:32:49,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 1985 transitions, 35135 flow [2023-08-26 07:32:49,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-26 07:32:49,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-26 07:32:49,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1474 transitions. [2023-08-26 07:32:49,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.32682926829268294 [2023-08-26 07:32:49,621 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1474 transitions. [2023-08-26 07:32:49,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1474 transitions. [2023-08-26 07:32:49,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:32:49,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1474 transitions. [2023-08-26 07:32:49,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 134.0) internal successors, (1474), 11 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:32:49,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:32:49,624 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:32:49,625 INFO L175 Difference]: Start difference. First operand has 477 places, 1804 transitions, 29769 flow. Second operand 11 states and 1474 transitions. [2023-08-26 07:32:49,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 1985 transitions, 35135 flow [2023-08-26 07:32:53,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 483 places, 1985 transitions, 34112 flow, removed 149 selfloop flow, removed 4 redundant places. [2023-08-26 07:32:53,286 INFO L231 Difference]: Finished difference. Result has 489 places, 1821 transitions, 30737 flow [2023-08-26 07:32:53,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=28763, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1804, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=691, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=30737, PETRI_PLACES=489, PETRI_TRANSITIONS=1821} [2023-08-26 07:32:53,288 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 355 predicate places. [2023-08-26 07:32:53,288 INFO L495 AbstractCegarLoop]: Abstraction has has 489 places, 1821 transitions, 30737 flow [2023-08-26 07:32:53,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:32:53,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:32:53,288 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:32:53,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-26 07:32:53,288 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:32:53,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:32:53,289 INFO L85 PathProgramCache]: Analyzing trace with hash -520373896, now seen corresponding path program 17 times [2023-08-26 07:32:53,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:32:53,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358116251] [2023-08-26 07:32:53,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:32:53,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:32:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:32:53,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:32:53,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:32:53,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358116251] [2023-08-26 07:32:53,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358116251] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:32:53,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:32:53,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:32:53,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815349072] [2023-08-26 07:32:53,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:32:53,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:32:53,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:32:53,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:32:53,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:32:53,515 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:32:53,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 1821 transitions, 30737 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:32:53,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:32:53,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:32:53,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:33:08,880 INFO L124 PetriNetUnfolderBase]: 19914/41023 cut-off events. [2023-08-26 07:33:08,880 INFO L125 PetriNetUnfolderBase]: For 329284/329322 co-relation queries the response was YES. [2023-08-26 07:33:09,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180621 conditions, 41023 events. 19914/41023 cut-off events. For 329284/329322 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 339189 event pairs, 13063 based on Foata normal form. 56/36368 useless extension candidates. Maximal degree in co-relation 180460. Up to 24272 conditions per place. [2023-08-26 07:33:09,723 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1304 selfloop transitions, 713 changer transitions 2/2024 dead transitions. [2023-08-26 07:33:09,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 2024 transitions, 36412 flow [2023-08-26 07:33:09,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-26 07:33:09,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-26 07:33:09,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1384 transitions. [2023-08-26 07:33:09,725 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3375609756097561 [2023-08-26 07:33:09,725 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1384 transitions. [2023-08-26 07:33:09,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1384 transitions. [2023-08-26 07:33:09,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:33:09,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1384 transitions. [2023-08-26 07:33:09,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 138.4) internal successors, (1384), 10 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:33:09,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:33:09,728 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 410.0) internal successors, (4510), 11 states have internal predecessors, (4510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:33:09,728 INFO L175 Difference]: Start difference. First operand has 489 places, 1821 transitions, 30737 flow. Second operand 10 states and 1384 transitions. [2023-08-26 07:33:09,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 2024 transitions, 36412 flow [2023-08-26 07:33:13,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 2024 transitions, 35371 flow, removed 170 selfloop flow, removed 4 redundant places. [2023-08-26 07:33:13,751 INFO L231 Difference]: Finished difference. Result has 498 places, 1840 transitions, 31789 flow [2023-08-26 07:33:13,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=29738, PETRI_DIFFERENCE_MINUEND_PLACES=485, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1821, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=695, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=31789, PETRI_PLACES=498, PETRI_TRANSITIONS=1840} [2023-08-26 07:33:13,752 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 364 predicate places. [2023-08-26 07:33:13,752 INFO L495 AbstractCegarLoop]: Abstraction has has 498 places, 1840 transitions, 31789 flow [2023-08-26 07:33:13,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:33:13,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:33:13,752 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:33:13,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-26 07:33:13,753 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:33:13,753 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:33:13,753 INFO L85 PathProgramCache]: Analyzing trace with hash 902658820, now seen corresponding path program 18 times [2023-08-26 07:33:13,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:33:13,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012290159] [2023-08-26 07:33:13,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:33:13,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:33:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:33:13,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:33:13,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:33:13,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012290159] [2023-08-26 07:33:13,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012290159] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:33:13,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:33:13,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:33:13,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562905504] [2023-08-26 07:33:13,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:33:13,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:33:13,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:33:13,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:33:13,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:33:13,980 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:33:13,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 498 places, 1840 transitions, 31789 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:33:13,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:33:13,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:33:13,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:33:30,176 INFO L124 PetriNetUnfolderBase]: 19896/41022 cut-off events. [2023-08-26 07:33:30,176 INFO L125 PetriNetUnfolderBase]: For 335487/335519 co-relation queries the response was YES. [2023-08-26 07:33:30,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181487 conditions, 41022 events. 19896/41022 cut-off events. For 335487/335519 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 341197 event pairs, 12078 based on Foata normal form. 50/36365 useless extension candidates. Maximal degree in co-relation 181323. Up to 24304 conditions per place. [2023-08-26 07:33:30,832 INFO L140 encePairwiseOnDemand]: 370/410 looper letters, 1315 selfloop transitions, 719 changer transitions 2/2041 dead transitions. [2023-08-26 07:33:30,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 2041 transitions, 37200 flow [2023-08-26 07:33:30,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-26 07:33:30,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-26 07:33:30,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1522 transitions. [2023-08-26 07:33:30,834 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3374722838137472 [2023-08-26 07:33:30,834 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1522 transitions. [2023-08-26 07:33:30,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1522 transitions. [2023-08-26 07:33:30,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:33:30,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1522 transitions. [2023-08-26 07:33:30,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 138.36363636363637) internal successors, (1522), 11 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:33:30,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:33:30,837 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:33:30,837 INFO L175 Difference]: Start difference. First operand has 498 places, 1840 transitions, 31789 flow. Second operand 11 states and 1522 transitions. [2023-08-26 07:33:30,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 2041 transitions, 37200 flow [2023-08-26 07:33:34,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 2041 transitions, 36080 flow, removed 200 selfloop flow, removed 4 redundant places. [2023-08-26 07:33:34,919 INFO L231 Difference]: Finished difference. Result has 508 places, 1851 transitions, 32495 flow [2023-08-26 07:33:34,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=30695, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1840, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=709, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=32495, PETRI_PLACES=508, PETRI_TRANSITIONS=1851} [2023-08-26 07:33:34,920 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 374 predicate places. [2023-08-26 07:33:34,920 INFO L495 AbstractCegarLoop]: Abstraction has has 508 places, 1851 transitions, 32495 flow [2023-08-26 07:33:34,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:33:34,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:33:34,920 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:33:34,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-26 07:33:34,921 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:33:34,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:33:34,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1479949306, now seen corresponding path program 19 times [2023-08-26 07:33:34,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:33:34,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105774062] [2023-08-26 07:33:34,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:33:34,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:33:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:33:35,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:33:35,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:33:35,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105774062] [2023-08-26 07:33:35,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105774062] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:33:35,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:33:35,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:33:35,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350755128] [2023-08-26 07:33:35,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:33:35,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:33:35,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:33:35,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:33:35,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:33:35,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:33:35,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 1851 transitions, 32495 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:33:35,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:33:35,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:33:35,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:33:54,808 INFO L124 PetriNetUnfolderBase]: 23724/48800 cut-off events. [2023-08-26 07:33:54,808 INFO L125 PetriNetUnfolderBase]: For 442066/442070 co-relation queries the response was YES. [2023-08-26 07:33:55,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218430 conditions, 48800 events. 23724/48800 cut-off events. For 442066/442070 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 419843 event pairs, 9735 based on Foata normal form. 23/43183 useless extension candidates. Maximal degree in co-relation 218262. Up to 15113 conditions per place. [2023-08-26 07:33:55,719 INFO L140 encePairwiseOnDemand]: 379/410 looper letters, 2659 selfloop transitions, 155 changer transitions 0/2819 dead transitions. [2023-08-26 07:33:55,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 519 places, 2819 transitions, 48123 flow [2023-08-26 07:33:55,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 07:33:55,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 07:33:55,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2054 transitions. [2023-08-26 07:33:55,721 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41747967479674797 [2023-08-26 07:33:55,721 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2054 transitions. [2023-08-26 07:33:55,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2054 transitions. [2023-08-26 07:33:55,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:33:55,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2054 transitions. [2023-08-26 07:33:55,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 171.16666666666666) internal successors, (2054), 12 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:33:55,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:33:55,726 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:33:55,726 INFO L175 Difference]: Start difference. First operand has 508 places, 1851 transitions, 32495 flow. Second operand 12 states and 2054 transitions. [2023-08-26 07:33:55,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 519 places, 2819 transitions, 48123 flow [2023-08-26 07:34:00,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 515 places, 2819 transitions, 47613 flow, removed 90 selfloop flow, removed 4 redundant places. [2023-08-26 07:34:00,722 INFO L231 Difference]: Finished difference. Result has 520 places, 1965 transitions, 35497 flow [2023-08-26 07:34:00,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=32034, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1851, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1701, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=35497, PETRI_PLACES=520, PETRI_TRANSITIONS=1965} [2023-08-26 07:34:00,723 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 386 predicate places. [2023-08-26 07:34:00,723 INFO L495 AbstractCegarLoop]: Abstraction has has 520 places, 1965 transitions, 35497 flow [2023-08-26 07:34:00,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:34:00,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:34:00,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:34:00,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-26 07:34:00,724 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:34:00,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:34:00,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1936191452, now seen corresponding path program 20 times [2023-08-26 07:34:00,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:34:00,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803765034] [2023-08-26 07:34:00,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:34:00,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:34:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:34:00,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:34:00,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:34:00,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803765034] [2023-08-26 07:34:00,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803765034] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:34:00,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:34:00,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:34:00,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021724808] [2023-08-26 07:34:00,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:34:00,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:34:00,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:34:00,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:34:00,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:34:00,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:34:00,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 1965 transitions, 35497 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:34:00,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:34:00,929 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:34:00,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:34:22,239 INFO L124 PetriNetUnfolderBase]: 23702/48788 cut-off events. [2023-08-26 07:34:22,239 INFO L125 PetriNetUnfolderBase]: For 473455/473459 co-relation queries the response was YES. [2023-08-26 07:34:23,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219891 conditions, 48788 events. 23702/48788 cut-off events. For 473455/473459 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 419912 event pairs, 10364 based on Foata normal form. 26/43178 useless extension candidates. Maximal degree in co-relation 219718. Up to 28902 conditions per place. [2023-08-26 07:34:23,152 INFO L140 encePairwiseOnDemand]: 378/410 looper letters, 2518 selfloop transitions, 178 changer transitions 4/2705 dead transitions. [2023-08-26 07:34:23,152 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 2705 transitions, 46300 flow [2023-08-26 07:34:23,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 07:34:23,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 07:34:23,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2094 transitions. [2023-08-26 07:34:23,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42560975609756097 [2023-08-26 07:34:23,154 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2094 transitions. [2023-08-26 07:34:23,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2094 transitions. [2023-08-26 07:34:23,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:34:23,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2094 transitions. [2023-08-26 07:34:23,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 174.5) internal successors, (2094), 12 states have internal predecessors, (2094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:34:23,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:34:23,158 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:34:23,159 INFO L175 Difference]: Start difference. First operand has 520 places, 1965 transitions, 35497 flow. Second operand 12 states and 2094 transitions. [2023-08-26 07:34:23,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 2705 transitions, 46300 flow [2023-08-26 07:34:28,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 2705 transitions, 45260 flow, removed 487 selfloop flow, removed 5 redundant places. [2023-08-26 07:34:28,379 INFO L231 Difference]: Finished difference. Result has 531 places, 1992 transitions, 35997 flow [2023-08-26 07:34:28,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=34457, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1965, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1790, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=35997, PETRI_PLACES=531, PETRI_TRANSITIONS=1992} [2023-08-26 07:34:28,380 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 397 predicate places. [2023-08-26 07:34:28,380 INFO L495 AbstractCegarLoop]: Abstraction has has 531 places, 1992 transitions, 35997 flow [2023-08-26 07:34:28,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:34:28,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:34:28,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:34:28,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-26 07:34:28,380 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:34:28,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:34:28,381 INFO L85 PathProgramCache]: Analyzing trace with hash -617506900, now seen corresponding path program 21 times [2023-08-26 07:34:28,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:34:28,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338170427] [2023-08-26 07:34:28,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:34:28,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:34:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:34:28,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:34:28,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:34:28,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338170427] [2023-08-26 07:34:28,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338170427] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:34:28,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:34:28,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:34:28,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199765696] [2023-08-26 07:34:28,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:34:28,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:34:28,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:34:28,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:34:28,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:34:28,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:34:28,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 1992 transitions, 35997 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:34:28,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:34:28,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:34:28,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:34:49,875 INFO L124 PetriNetUnfolderBase]: 23757/48884 cut-off events. [2023-08-26 07:34:49,875 INFO L125 PetriNetUnfolderBase]: For 484498/484508 co-relation queries the response was YES. [2023-08-26 07:34:50,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221020 conditions, 48884 events. 23757/48884 cut-off events. For 484498/484508 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 417912 event pairs, 12253 based on Foata normal form. 29/43267 useless extension candidates. Maximal degree in co-relation 220846. Up to 15069 conditions per place. [2023-08-26 07:34:51,053 INFO L140 encePairwiseOnDemand]: 371/410 looper letters, 2203 selfloop transitions, 275 changer transitions 0/2483 dead transitions. [2023-08-26 07:34:51,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 2483 transitions, 45399 flow [2023-08-26 07:34:51,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-26 07:34:51,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-26 07:34:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1707 transitions. [2023-08-26 07:34:51,056 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3784922394678492 [2023-08-26 07:34:51,056 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1707 transitions. [2023-08-26 07:34:51,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1707 transitions. [2023-08-26 07:34:51,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:34:51,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1707 transitions. [2023-08-26 07:34:51,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 155.1818181818182) internal successors, (1707), 11 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:34:51,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:34:51,060 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:34:51,060 INFO L175 Difference]: Start difference. First operand has 531 places, 1992 transitions, 35997 flow. Second operand 11 states and 1707 transitions. [2023-08-26 07:34:51,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 2483 transitions, 45399 flow [2023-08-26 07:34:56,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 2483 transitions, 44381 flow, removed 436 selfloop flow, removed 6 redundant places. [2023-08-26 07:34:56,216 INFO L231 Difference]: Finished difference. Result has 541 places, 2025 transitions, 37105 flow [2023-08-26 07:34:56,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=34979, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1992, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=244, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1723, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=37105, PETRI_PLACES=541, PETRI_TRANSITIONS=2025} [2023-08-26 07:34:56,218 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 407 predicate places. [2023-08-26 07:34:56,218 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 2025 transitions, 37105 flow [2023-08-26 07:34:56,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:34:56,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:34:56,218 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:34:56,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-26 07:34:56,218 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:34:56,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:34:56,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1716308339, now seen corresponding path program 5 times [2023-08-26 07:34:56,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:34:56,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973182886] [2023-08-26 07:34:56,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:34:56,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:34:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:34:56,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:34:56,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:34:56,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973182886] [2023-08-26 07:34:56,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973182886] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:34:56,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:34:56,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:34:56,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475876403] [2023-08-26 07:34:56,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:34:56,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:34:56,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:34:56,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:34:56,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:34:56,414 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 410 [2023-08-26 07:34:56,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 2025 transitions, 37105 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:34:56,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:34:56,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 410 [2023-08-26 07:34:56,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:35:18,363 INFO L124 PetriNetUnfolderBase]: 23733/48880 cut-off events. [2023-08-26 07:35:18,363 INFO L125 PetriNetUnfolderBase]: For 484353/484353 co-relation queries the response was YES. [2023-08-26 07:35:19,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221347 conditions, 48880 events. 23733/48880 cut-off events. For 484353/484353 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 421429 event pairs, 9714 based on Foata normal form. 0/43264 useless extension candidates. Maximal degree in co-relation 221167. Up to 15069 conditions per place. [2023-08-26 07:35:19,377 INFO L140 encePairwiseOnDemand]: 371/410 looper letters, 2700 selfloop transitions, 206 changer transitions 0/2911 dead transitions. [2023-08-26 07:35:19,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 2911 transitions, 50957 flow [2023-08-26 07:35:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-26 07:35:19,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-26 07:35:19,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2570 transitions. [2023-08-26 07:35:19,380 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39176829268292684 [2023-08-26 07:35:19,380 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2570 transitions. [2023-08-26 07:35:19,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2570 transitions. [2023-08-26 07:35:19,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:35:19,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2570 transitions. [2023-08-26 07:35:19,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 160.625) internal successors, (2570), 16 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:35:19,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 410.0) internal successors, (6970), 17 states have internal predecessors, (6970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:35:19,385 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 410.0) internal successors, (6970), 17 states have internal predecessors, (6970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:35:19,385 INFO L175 Difference]: Start difference. First operand has 541 places, 2025 transitions, 37105 flow. Second operand 16 states and 2570 transitions. [2023-08-26 07:35:19,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 556 places, 2911 transitions, 50957 flow [2023-08-26 07:35:24,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 2911 transitions, 49515 flow, removed 683 selfloop flow, removed 3 redundant places. [2023-08-26 07:35:24,965 INFO L231 Difference]: Finished difference. Result has 563 places, 2182 transitions, 39673 flow [2023-08-26 07:35:24,966 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=36137, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2025, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1830, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=39673, PETRI_PLACES=563, PETRI_TRANSITIONS=2182} [2023-08-26 07:35:24,967 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 429 predicate places. [2023-08-26 07:35:24,967 INFO L495 AbstractCegarLoop]: Abstraction has has 563 places, 2182 transitions, 39673 flow [2023-08-26 07:35:24,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:35:24,967 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:35:24,967 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:35:24,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-26 07:35:24,967 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:35:24,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:35:24,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1819479998, now seen corresponding path program 22 times [2023-08-26 07:35:24,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:35:24,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303685495] [2023-08-26 07:35:24,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:35:24,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:35:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:35:25,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:35:25,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:35:25,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303685495] [2023-08-26 07:35:25,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303685495] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:35:25,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:35:25,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:35:25,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271238585] [2023-08-26 07:35:25,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:35:25,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:35:25,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:35:25,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:35:25,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:35:25,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:35:25,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 2182 transitions, 39673 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:35:25,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:35:25,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:35:25,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:35:48,488 INFO L124 PetriNetUnfolderBase]: 23748/48897 cut-off events. [2023-08-26 07:35:48,488 INFO L125 PetriNetUnfolderBase]: For 510464/510472 co-relation queries the response was YES. [2023-08-26 07:35:49,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224110 conditions, 48897 events. 23748/48897 cut-off events. For 510464/510472 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 419809 event pairs, 11224 based on Foata normal form. 22/43300 useless extension candidates. Maximal degree in co-relation 223920. Up to 15069 conditions per place. [2023-08-26 07:35:49,555 INFO L140 encePairwiseOnDemand]: 371/410 looper letters, 2349 selfloop transitions, 287 changer transitions 0/2641 dead transitions. [2023-08-26 07:35:49,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 573 places, 2641 transitions, 47793 flow [2023-08-26 07:35:49,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-26 07:35:49,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-26 07:35:49,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1804 transitions. [2023-08-26 07:35:49,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4 [2023-08-26 07:35:49,557 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1804 transitions. [2023-08-26 07:35:49,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1804 transitions. [2023-08-26 07:35:49,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:35:49,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1804 transitions. [2023-08-26 07:35:49,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 164.0) internal successors, (1804), 11 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:35:49,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:35:49,561 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:35:49,561 INFO L175 Difference]: Start difference. First operand has 563 places, 2182 transitions, 39673 flow. Second operand 11 states and 1804 transitions. [2023-08-26 07:35:49,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 573 places, 2641 transitions, 47793 flow [2023-08-26 07:35:55,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 2641 transitions, 46618 flow, removed 517 selfloop flow, removed 4 redundant places. [2023-08-26 07:35:55,356 INFO L231 Difference]: Finished difference. Result has 574 places, 2190 transitions, 39663 flow [2023-08-26 07:35:55,357 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=38578, PETRI_DIFFERENCE_MINUEND_PLACES=559, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=279, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1896, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=39663, PETRI_PLACES=574, PETRI_TRANSITIONS=2190} [2023-08-26 07:35:55,357 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 440 predicate places. [2023-08-26 07:35:55,357 INFO L495 AbstractCegarLoop]: Abstraction has has 574 places, 2190 transitions, 39663 flow [2023-08-26 07:35:55,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:35:55,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:35:55,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:35:55,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-26 07:35:55,358 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:35:55,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:35:55,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1475192138, now seen corresponding path program 23 times [2023-08-26 07:35:55,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:35:55,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110961330] [2023-08-26 07:35:55,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:35:55,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:35:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:35:55,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:35:55,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:35:55,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110961330] [2023-08-26 07:35:55,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110961330] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:35:55,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:35:55,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:35:55,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556502839] [2023-08-26 07:35:55,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:35:55,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:35:55,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:35:55,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:35:55,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:35:55,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:35:55,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 2190 transitions, 39663 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:35:55,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:35:55,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:35:55,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:36:19,225 INFO L124 PetriNetUnfolderBase]: 23782/49038 cut-off events. [2023-08-26 07:36:19,226 INFO L125 PetriNetUnfolderBase]: For 514329/514337 co-relation queries the response was YES. [2023-08-26 07:36:20,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224308 conditions, 49038 events. 23782/49038 cut-off events. For 514329/514337 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 422424 event pairs, 11137 based on Foata normal form. 26/43445 useless extension candidates. Maximal degree in co-relation 224114. Up to 15069 conditions per place. [2023-08-26 07:36:20,297 INFO L140 encePairwiseOnDemand]: 371/410 looper letters, 2356 selfloop transitions, 300 changer transitions 0/2661 dead transitions. [2023-08-26 07:36:20,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 2661 transitions, 48724 flow [2023-08-26 07:36:20,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-26 07:36:20,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-26 07:36:20,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1737 transitions. [2023-08-26 07:36:20,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3851441241685144 [2023-08-26 07:36:20,299 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1737 transitions. [2023-08-26 07:36:20,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1737 transitions. [2023-08-26 07:36:20,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:36:20,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1737 transitions. [2023-08-26 07:36:20,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 157.9090909090909) internal successors, (1737), 11 states have internal predecessors, (1737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:20,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:20,303 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 410.0) internal successors, (4920), 12 states have internal predecessors, (4920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:20,303 INFO L175 Difference]: Start difference. First operand has 574 places, 2190 transitions, 39663 flow. Second operand 11 states and 1737 transitions. [2023-08-26 07:36:20,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 2661 transitions, 48724 flow [2023-08-26 07:36:26,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 2661 transitions, 47545 flow, removed 387 selfloop flow, removed 5 redundant places. [2023-08-26 07:36:26,707 INFO L231 Difference]: Finished difference. Result has 583 places, 2211 transitions, 40119 flow [2023-08-26 07:36:26,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=38562, PETRI_DIFFERENCE_MINUEND_PLACES=569, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=280, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1894, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=40119, PETRI_PLACES=583, PETRI_TRANSITIONS=2211} [2023-08-26 07:36:26,709 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 449 predicate places. [2023-08-26 07:36:26,709 INFO L495 AbstractCegarLoop]: Abstraction has has 583 places, 2211 transitions, 40119 flow [2023-08-26 07:36:26,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:26,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:36:26,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:36:26,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-26 07:36:26,709 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-08-26 07:36:26,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:36:26,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1811959088, now seen corresponding path program 24 times [2023-08-26 07:36:26,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:36:26,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405548648] [2023-08-26 07:36:26,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:36:26,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:36:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:36:26,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:36:26,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:36:26,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405548648] [2023-08-26 07:36:26,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405548648] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:36:26,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:36:26,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:36:26,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899545764] [2023-08-26 07:36:26,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:36:26,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:36:26,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:36:26,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:36:26,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:36:26,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 410 [2023-08-26 07:36:26,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 2211 transitions, 40119 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:36:26,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:36:26,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 410 [2023-08-26 07:36:26,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand