/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/28-race_reach_85-list2_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 08:05:09,562 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 08:05:09,633 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 08:05:09,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 08:05:09,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 08:05:09,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 08:05:09,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 08:05:09,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 08:05:09,661 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 08:05:09,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 08:05:09,665 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 08:05:09,665 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 08:05:09,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 08:05:09,666 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 08:05:09,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 08:05:09,666 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 08:05:09,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 08:05:09,667 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 08:05:09,667 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 08:05:09,667 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 08:05:09,667 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 08:05:09,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 08:05:09,668 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 08:05:09,668 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 08:05:09,669 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 08:05:09,669 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 08:05:09,669 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 08:05:09,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:05:09,669 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 08:05:09,669 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 08:05:09,670 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 08:05:09,670 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 08:05:09,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 08:05:09,670 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 08:05:09,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 08:05:09,671 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 08:05:09,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 08:05:09,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 08:05:09,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 08:05:09,939 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 08:05:09,939 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 08:05:09,940 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i [2023-08-26 08:05:10,955 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 08:05:11,166 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 08:05:11,166 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i [2023-08-26 08:05:11,179 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/921cddbd2/f04401efefe847f88b6db6819e21d637/FLAG2bd13abd1 [2023-08-26 08:05:11,187 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/921cddbd2/f04401efefe847f88b6db6819e21d637 [2023-08-26 08:05:11,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 08:05:11,189 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 08:05:11,190 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 08:05:11,190 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 08:05:11,192 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 08:05:11,192 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:05:11" (1/1) ... [2023-08-26 08:05:11,193 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@271b72a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:05:11, skipping insertion in model container [2023-08-26 08:05:11,193 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:05:11" (1/1) ... [2023-08-26 08:05:11,234 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 08:05:11,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:05:11,498 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 08:05:11,523 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-26 08:05:11,527 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-26 08:05:11,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:05:11,615 INFO L206 MainTranslator]: Completed translation [2023-08-26 08:05:11,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:05:11 WrapperNode [2023-08-26 08:05:11,615 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 08:05:11,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 08:05:11,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 08:05:11,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 08:05:11,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:05:11" (1/1) ... [2023-08-26 08:05:11,648 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:05:11" (1/1) ... [2023-08-26 08:05:11,688 INFO L138 Inliner]: procedures = 279, calls = 87, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 534 [2023-08-26 08:05:11,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 08:05:11,689 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 08:05:11,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 08:05:11,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 08:05:11,699 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:05:11" (1/1) ... [2023-08-26 08:05:11,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:05:11" (1/1) ... [2023-08-26 08:05:11,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:05:11" (1/1) ... [2023-08-26 08:05:11,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:05:11" (1/1) ... [2023-08-26 08:05:11,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:05:11" (1/1) ... [2023-08-26 08:05:11,749 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:05:11" (1/1) ... [2023-08-26 08:05:11,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:05:11" (1/1) ... [2023-08-26 08:05:11,753 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:05:11" (1/1) ... [2023-08-26 08:05:11,756 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 08:05:11,756 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 08:05:11,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 08:05:11,757 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 08:05:11,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:05:11" (1/1) ... [2023-08-26 08:05:11,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:05:11,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:05:11,780 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 08:05:11,796 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 08:05:11,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 08:05:11,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-26 08:05:11,816 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-26 08:05:11,816 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-26 08:05:11,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 08:05:11,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 08:05:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-26 08:05:11,817 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-26 08:05:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 08:05:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 08:05:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 08:05:11,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 08:05:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 08:05:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-08-26 08:05:11,818 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-08-26 08:05:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 08:05:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 08:05:11,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 08:05:11,821 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 08:05:12,037 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 08:05:12,039 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 08:05:12,549 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 08:05:12,556 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 08:05:12,557 INFO L302 CfgBuilder]: Removed 28 assume(true) statements. [2023-08-26 08:05:12,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:05:12 BoogieIcfgContainer [2023-08-26 08:05:12,558 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 08:05:12,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 08:05:12,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 08:05:12,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 08:05:12,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:05:11" (1/3) ... [2023-08-26 08:05:12,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c67ed83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:05:12, skipping insertion in model container [2023-08-26 08:05:12,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:05:11" (2/3) ... [2023-08-26 08:05:12,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c67ed83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:05:12, skipping insertion in model container [2023-08-26 08:05:12,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:05:12" (3/3) ... [2023-08-26 08:05:12,563 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2023-08-26 08:05:12,574 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 08:05:12,574 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-08-26 08:05:12,574 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 08:05:12,691 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-08-26 08:05:12,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 536 places, 577 transitions, 1196 flow [2023-08-26 08:05:13,071 INFO L124 PetriNetUnfolderBase]: 171/1668 cut-off events. [2023-08-26 08:05:13,071 INFO L125 PetriNetUnfolderBase]: For 36/62 co-relation queries the response was YES. [2023-08-26 08:05:13,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1729 conditions, 1668 events. 171/1668 cut-off events. For 36/62 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12132 event pairs, 0 based on Foata normal form. 0/1393 useless extension candidates. Maximal degree in co-relation 855. Up to 16 conditions per place. [2023-08-26 08:05:13,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 536 places, 577 transitions, 1196 flow [2023-08-26 08:05:13,121 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 536 places, 577 transitions, 1196 flow [2023-08-26 08:05:13,123 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 08:05:13,134 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 536 places, 577 transitions, 1196 flow [2023-08-26 08:05:13,141 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 536 places, 577 transitions, 1196 flow [2023-08-26 08:05:13,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 536 places, 577 transitions, 1196 flow [2023-08-26 08:05:13,417 INFO L124 PetriNetUnfolderBase]: 171/1668 cut-off events. [2023-08-26 08:05:13,417 INFO L125 PetriNetUnfolderBase]: For 36/62 co-relation queries the response was YES. [2023-08-26 08:05:13,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1729 conditions, 1668 events. 171/1668 cut-off events. For 36/62 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12132 event pairs, 0 based on Foata normal form. 0/1393 useless extension candidates. Maximal degree in co-relation 855. Up to 16 conditions per place. [2023-08-26 08:05:13,515 INFO L119 LiptonReduction]: Number of co-enabled transitions 146418 [2023-08-26 08:05:34,109 WARN L234 SmtUtils]: Spent 10.27s on a formula simplification. DAG size of input: 147 DAG size of output: 143 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:05:44,602 WARN L234 SmtUtils]: Spent 7.35s on a formula simplification. DAG size of input: 147 DAG size of output: 143 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:05:59,680 WARN L234 SmtUtils]: Spent 12.14s on a formula simplification. DAG size of input: 303 DAG size of output: 301 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:06:34,532 WARN L234 SmtUtils]: Spent 31.66s on a formula simplification. DAG size of input: 303 DAG size of output: 301 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:06:46,438 WARN L234 SmtUtils]: Spent 11.90s on a formula simplification that was a NOOP. DAG size: 277 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-26 08:06:46,449 INFO L134 LiptonReduction]: Checked pairs total: 850282 [2023-08-26 08:06:46,449 INFO L136 LiptonReduction]: Total number of compositions: 402 [2023-08-26 08:06:46,458 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 08:06:46,461 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;@59e416c1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 08:06:46,461 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2023-08-26 08:06:46,462 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 08:06:46,462 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 08:06:46,462 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 08:06:46,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:06:46,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 08:06:46,462 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, t3_funErr8ASSERT_VIOLATIONASSERT, t1_funErr5ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-26 08:06:46,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:06:46,466 INFO L85 PathProgramCache]: Analyzing trace with hash 2117, now seen corresponding path program 1 times [2023-08-26 08:06:46,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:06:46,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952918366] [2023-08-26 08:06:46,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:06:46,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:06:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:06:46,559 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 08:06:46,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:06:46,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952918366] [2023-08-26 08:06:46,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952918366] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:06:46,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:06:46,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 08:06:46,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60271067] [2023-08-26 08:06:46,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:06:46,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 08:06:46,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:06:46,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 08:06:46,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 08:06:46,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 531 out of 979 [2023-08-26 08:06:46,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 269 transitions, 580 flow. Second operand has 2 states, 2 states have (on average 531.5) internal successors, (1063), 2 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states 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 08:06:46,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:06:46,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 531 of 979 [2023-08-26 08:06:46,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:07:46,145 INFO L124 PetriNetUnfolderBase]: 434036/817496 cut-off events. [2023-08-26 08:07:46,145 INFO L125 PetriNetUnfolderBase]: For 7830/7830 co-relation queries the response was YES. [2023-08-26 08:07:48,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1397704 conditions, 817496 events. 434036/817496 cut-off events. For 7830/7830 co-relation queries the response was YES. Maximal size of possible extension queue 13619. Compared 10378005 event pairs, 398048 based on Foata normal form. 67966/761835 useless extension candidates. Maximal degree in co-relation 1316720. Up to 574346 conditions per place. [2023-08-26 08:07:51,669 INFO L140 encePairwiseOnDemand]: 948/979 looper letters, 100 selfloop transitions, 0 changer transitions 0/237 dead transitions. [2023-08-26 08:07:51,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 237 transitions, 716 flow [2023-08-26 08:07:51,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 08:07:51,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 08:07:51,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1193 transitions. [2023-08-26 08:07:51,683 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6092951991828396 [2023-08-26 08:07:51,684 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1193 transitions. [2023-08-26 08:07:51,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1193 transitions. [2023-08-26 08:07:51,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:07:51,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1193 transitions. [2023-08-26 08:07:51,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 596.5) internal successors, (1193), 2 states have internal predecessors, (1193), 0 states have call successors, (0), 0 states 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 08:07:51,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 979.0) internal successors, (2937), 3 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states 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 08:07:51,697 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 979.0) internal successors, (2937), 3 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states 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 08:07:51,698 INFO L175 Difference]: Start difference. First operand has 239 places, 269 transitions, 580 flow. Second operand 2 states and 1193 transitions. [2023-08-26 08:07:51,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 237 transitions, 716 flow [2023-08-26 08:07:53,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 237 transitions, 716 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:07:53,864 INFO L231 Difference]: Finished difference. Result has 231 places, 237 transitions, 516 flow [2023-08-26 08:07:53,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=979, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=516, PETRI_PLACES=231, PETRI_TRANSITIONS=237} [2023-08-26 08:07:53,867 INFO L281 CegarLoopForPetriNet]: 239 programPoint places, -8 predicate places. [2023-08-26 08:07:53,868 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 237 transitions, 516 flow [2023-08-26 08:07:53,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 531.5) internal successors, (1063), 2 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states 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 08:07:53,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:07:53,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 08:07:53,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 08:07:53,869 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, t3_funErr8ASSERT_VIOLATIONASSERT, t1_funErr5ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-26 08:07:53,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:07:53,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1599419740, now seen corresponding path program 1 times [2023-08-26 08:07:53,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:07:53,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299879267] [2023-08-26 08:07:53,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:07:53,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:07:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:07:54,050 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 08:07:54,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:07:54,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299879267] [2023-08-26 08:07:54,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299879267] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:07:54,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:07:54,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:07:54,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071620475] [2023-08-26 08:07:54,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:07:54,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:07:54,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:07:54,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:07:54,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:07:54,055 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 523 out of 979 [2023-08-26 08:07:54,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 237 transitions, 516 flow. Second operand has 3 states, 3 states have (on average 524.6666666666666) internal successors, (1574), 3 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states 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 08:07:54,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:07:54,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 523 of 979 [2023-08-26 08:07:54,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:08:53,107 INFO L124 PetriNetUnfolderBase]: 429903/825296 cut-off events. [2023-08-26 08:08:53,108 INFO L125 PetriNetUnfolderBase]: For 10687/10687 co-relation queries the response was YES. [2023-08-26 08:08:55,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1399533 conditions, 825296 events. 429903/825296 cut-off events. For 10687/10687 co-relation queries the response was YES. Maximal size of possible extension queue 13365. Compared 10677702 event pairs, 261816 based on Foata normal form. 0/711247 useless extension candidates. Maximal degree in co-relation 1399527. Up to 568269 conditions per place. [2023-08-26 08:08:58,565 INFO L140 encePairwiseOnDemand]: 976/979 looper letters, 116 selfloop transitions, 2 changer transitions 0/255 dead transitions. [2023-08-26 08:08:58,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 255 transitions, 788 flow [2023-08-26 08:08:58,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:08:58,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:08:58,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1688 transitions. [2023-08-26 08:08:58,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5747361252979231 [2023-08-26 08:08:58,569 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1688 transitions. [2023-08-26 08:08:58,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1688 transitions. [2023-08-26 08:08:58,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:08:58,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1688 transitions. [2023-08-26 08:08:58,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 562.6666666666666) internal successors, (1688), 3 states have internal predecessors, (1688), 0 states have call successors, (0), 0 states 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 08:08:58,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 979.0) internal successors, (3916), 4 states have internal predecessors, (3916), 0 states have call successors, (0), 0 states 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 08:08:58,577 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 979.0) internal successors, (3916), 4 states have internal predecessors, (3916), 0 states have call successors, (0), 0 states 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 08:08:58,577 INFO L175 Difference]: Start difference. First operand has 231 places, 237 transitions, 516 flow. Second operand 3 states and 1688 transitions. [2023-08-26 08:08:58,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 255 transitions, 788 flow [2023-08-26 08:08:58,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 255 transitions, 788 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:08:58,598 INFO L231 Difference]: Finished difference. Result has 234 places, 237 transitions, 524 flow [2023-08-26 08:08:58,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=979, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=524, PETRI_PLACES=234, PETRI_TRANSITIONS=237} [2023-08-26 08:08:58,599 INFO L281 CegarLoopForPetriNet]: 239 programPoint places, -5 predicate places. [2023-08-26 08:08:58,599 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 237 transitions, 524 flow [2023-08-26 08:08:58,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 524.6666666666666) internal successors, (1574), 3 states have internal predecessors, (1574), 0 states have call successors, (0), 0 states 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 08:08:58,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:08:58,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:08:58,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 08:08:58,600 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, t3_funErr8ASSERT_VIOLATIONASSERT, t1_funErr5ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-26 08:08:58,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:08:58,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1319828378, now seen corresponding path program 1 times [2023-08-26 08:08:58,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:08:58,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382383638] [2023-08-26 08:08:58,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:08:58,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:08:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:08:58,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:08:58,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:08:58,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382383638] [2023-08-26 08:08:58,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382383638] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:08:58,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009348643] [2023-08-26 08:08:58,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:08:58,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:08:58,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:08:58,724 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:08:58,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 08:08:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:08:58,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 08:08:58,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:08:58,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 08:08:58,869 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 08:08:58,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009348643] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:08:58,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 08:08:58,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-26 08:08:58,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011921311] [2023-08-26 08:08:58,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:08:58,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:08:58,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:08:58,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:08:58,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:08:58,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 519 out of 979 [2023-08-26 08:08:58,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 237 transitions, 524 flow. Second operand has 3 states, 3 states have (on average 522.0) internal successors, (1566), 3 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states 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 08:08:58,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:08:58,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 519 of 979 [2023-08-26 08:08:58,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:09:57,940 INFO L124 PetriNetUnfolderBase]: 429903/814484 cut-off events. [2023-08-26 08:09:57,940 INFO L125 PetriNetUnfolderBase]: For 8065/8065 co-relation queries the response was YES. [2023-08-26 08:10:00,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1388629 conditions, 814484 events. 429903/814484 cut-off events. For 8065/8065 co-relation queries the response was YES. Maximal size of possible extension queue 13267. Compared 10375478 event pairs, 394904 based on Foata normal form. 0/696224 useless extension candidates. Maximal degree in co-relation 1388621. Up to 568288 conditions per place. [2023-08-26 08:10:03,547 INFO L140 encePairwiseOnDemand]: 976/979 looper letters, 99 selfloop transitions, 1 changer transitions 0/235 dead transitions. [2023-08-26 08:10:03,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 235 transitions, 720 flow [2023-08-26 08:10:03,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:10:03,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:10:03,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1659 transitions. [2023-08-26 08:10:03,550 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5648621041879469 [2023-08-26 08:10:03,550 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1659 transitions. [2023-08-26 08:10:03,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1659 transitions. [2023-08-26 08:10:03,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:10:03,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1659 transitions. [2023-08-26 08:10:03,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 553.0) internal successors, (1659), 3 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states 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 08:10:03,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 979.0) internal successors, (3916), 4 states have internal predecessors, (3916), 0 states have call successors, (0), 0 states 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 08:10:03,558 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 979.0) internal successors, (3916), 4 states have internal predecessors, (3916), 0 states have call successors, (0), 0 states 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 08:10:03,558 INFO L175 Difference]: Start difference. First operand has 234 places, 237 transitions, 524 flow. Second operand 3 states and 1659 transitions. [2023-08-26 08:10:03,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 235 transitions, 720 flow [2023-08-26 08:10:05,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 235 transitions, 716 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:10:05,340 INFO L231 Difference]: Finished difference. Result has 232 places, 235 transitions, 518 flow [2023-08-26 08:10:05,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=979, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=518, PETRI_PLACES=232, PETRI_TRANSITIONS=235} [2023-08-26 08:10:05,341 INFO L281 CegarLoopForPetriNet]: 239 programPoint places, -7 predicate places. [2023-08-26 08:10:05,341 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 235 transitions, 518 flow [2023-08-26 08:10:05,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 522.0) internal successors, (1566), 3 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states 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 08:10:05,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:10:05,342 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:10:05,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-26 08:10:05,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:10:05,549 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t3_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, t3_funErr8ASSERT_VIOLATIONASSERT, t1_funErr5ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-26 08:10:05,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:10:05,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2081057051, now seen corresponding path program 1 times [2023-08-26 08:10:05,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:10:05,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184836651] [2023-08-26 08:10:05,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:10:05,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:10:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:10:05,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:10:05,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:10:05,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184836651] [2023-08-26 08:10:05,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184836651] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:10:05,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226874107] [2023-08-26 08:10:05,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:10:05,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:10:05,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:10:05,656 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:10:05,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 08:10:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:10:05,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 2 conjunts are in the unsatisfiable core [2023-08-26 08:10:05,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:10:05,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 08:10:05,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 08:10:05,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226874107] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:10:05,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 08:10:05,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-08-26 08:10:05,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921165951] [2023-08-26 08:10:05,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:10:05,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:10:05,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:10:05,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:10:05,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:10:05,805 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 523 out of 979 [2023-08-26 08:10:05,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 235 transitions, 518 flow. Second operand has 3 states, 3 states have (on average 526.0) internal successors, (1578), 3 states have internal predecessors, (1578), 0 states have call successors, (0), 0 states 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 08:10:05,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:10:05,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 523 of 979 [2023-08-26 08:10:05,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:11:03,469 INFO L124 PetriNetUnfolderBase]: 427234/809781 cut-off events. [2023-08-26 08:11:03,469 INFO L125 PetriNetUnfolderBase]: For 8802/8868 co-relation queries the response was YES. [2023-08-26 08:11:06,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1379989 conditions, 809781 events. 427234/809781 cut-off events. For 8802/8868 co-relation queries the response was YES. Maximal size of possible extension queue 13332. Compared 10350793 event pairs, 375041 based on Foata normal form. 0/694066 useless extension candidates. Maximal degree in co-relation 1379981. Up to 563427 conditions per place. [2023-08-26 08:11:09,091 INFO L140 encePairwiseOnDemand]: 976/979 looper letters, 141 selfloop transitions, 2 changer transitions 0/278 dead transitions. [2023-08-26 08:11:09,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 278 transitions, 890 flow [2023-08-26 08:11:09,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:11:09,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:11:09,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1713 transitions. [2023-08-26 08:11:09,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5832482124616956 [2023-08-26 08:11:09,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1713 transitions. [2023-08-26 08:11:09,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1713 transitions. [2023-08-26 08:11:09,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:11:09,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1713 transitions. [2023-08-26 08:11:09,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 571.0) internal successors, (1713), 3 states have internal predecessors, (1713), 0 states have call successors, (0), 0 states 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 08:11:09,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 979.0) internal successors, (3916), 4 states have internal predecessors, (3916), 0 states have call successors, (0), 0 states 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 08:11:09,108 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 979.0) internal successors, (3916), 4 states have internal predecessors, (3916), 0 states have call successors, (0), 0 states 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 08:11:09,108 INFO L175 Difference]: Start difference. First operand has 232 places, 235 transitions, 518 flow. Second operand 3 states and 1713 transitions. [2023-08-26 08:11:09,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 278 transitions, 890 flow [2023-08-26 08:11:10,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 278 transitions, 889 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:11:10,704 INFO L231 Difference]: Finished difference. Result has 234 places, 235 transitions, 525 flow [2023-08-26 08:11:10,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=979, PETRI_DIFFERENCE_MINUEND_FLOW=517, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=525, PETRI_PLACES=234, PETRI_TRANSITIONS=235} [2023-08-26 08:11:10,705 INFO L281 CegarLoopForPetriNet]: 239 programPoint places, -5 predicate places. [2023-08-26 08:11:10,705 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 235 transitions, 525 flow [2023-08-26 08:11:10,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 526.0) internal successors, (1578), 3 states have internal predecessors, (1578), 0 states have call successors, (0), 0 states 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 08:11:10,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:11:10,706 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:11:10,710 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-08-26 08:11:10,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-26 08:11:10,910 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE, t3_funErr8ASSERT_VIOLATIONASSERT, t1_funErr5ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-26 08:11:10,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:11:10,911 INFO L85 PathProgramCache]: Analyzing trace with hash 805898154, now seen corresponding path program 1 times [2023-08-26 08:11:10,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:11:10,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152534318] [2023-08-26 08:11:10,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:11:10,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:11:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:11:11,213 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 08:11:11,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:11:11,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152534318] [2023-08-26 08:11:11,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152534318] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:11:11,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:11:11,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:11:11,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067921882] [2023-08-26 08:11:11,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:11:11,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:11:11,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:11:11,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:11:11,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:11:11,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 979 [2023-08-26 08:11:11,219 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 235 transitions, 525 flow. Second operand has 6 states, 6 states have (on average 370.6666666666667) internal successors, (2224), 6 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states 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 08:11:11,219 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:11:11,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 979 [2023-08-26 08:11:11,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand