/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-5b77e9fc37942d960732eb3788a90132329d3bc4-5b77e9f [2021-10-19 14:47:26,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-19 14:47:26,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-19 14:47:26,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-19 14:47:26,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-19 14:47:26,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-19 14:47:26,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-19 14:47:26,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-19 14:47:26,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-19 14:47:26,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-19 14:47:26,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-19 14:47:26,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-19 14:47:26,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-19 14:47:26,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-19 14:47:26,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-19 14:47:26,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-19 14:47:26,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-19 14:47:26,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-19 14:47:26,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-19 14:47:26,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-19 14:47:26,644 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-10-19 14:47:26,668 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-19 14:47:26,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-19 14:47:26,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-19 14:47:26,669 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-19 14:47:26,669 INFO L138 SettingsManager]: * Use SBE=true [2021-10-19 14:47:26,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-19 14:47:26,670 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-19 14:47:26,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-19 14:47:26,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-19 14:47:26,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-19 14:47:26,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-19 14:47:26,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-19 14:47:26,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-19 14:47:26,671 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-19 14:47:26,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-19 14:47:26,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-19 14:47:26,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-19 14:47:26,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-19 14:47:26,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-19 14:47:26,671 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-19 14:47:26,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-19 14:47:26,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-19 14:47:26,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-19 14:47:26,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-19 14:47:26,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-19 14:47:26,672 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-19 14:47:26,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-19 14:47:26,673 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-19 14:47:26,673 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-19 14:47:26,673 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-19 14:47:26,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-19 14:47:26,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-19 14:47:26,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-19 14:47:26,876 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-19 14:47:26,876 INFO L275 PluginConnector]: CDTParser initialized [2021-10-19 14:47:26,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i [2021-10-19 14:47:26,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d36f7b51/33d214abd7fd423e8fd617595e8e782b/FLAGabd21440b [2021-10-19 14:47:27,359 INFO L306 CDTParser]: Found 1 translation units. [2021-10-19 14:47:27,360 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_10-ptrmunge_nr.i [2021-10-19 14:47:27,371 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d36f7b51/33d214abd7fd423e8fd617595e8e782b/FLAGabd21440b [2021-10-19 14:47:27,387 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d36f7b51/33d214abd7fd423e8fd617595e8e782b [2021-10-19 14:47:27,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-19 14:47:27,389 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-19 14:47:27,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-19 14:47:27,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-19 14:47:27,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-19 14:47:27,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 02:47:27" (1/1) ... [2021-10-19 14:47:27,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c59e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:27, skipping insertion in model container [2021-10-19 14:47:27,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 02:47:27" (1/1) ... [2021-10-19 14:47:27,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-19 14:47:27,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-19 14:47:27,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-19 14:47:27,695 INFO L203 MainTranslator]: Completed pre-run [2021-10-19 14:47:27,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-19 14:47:27,748 INFO L208 MainTranslator]: Completed translation [2021-10-19 14:47:27,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:27 WrapperNode [2021-10-19 14:47:27,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-19 14:47:27,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-19 14:47:27,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-19 14:47:27,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-19 14:47:27,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:27" (1/1) ... [2021-10-19 14:47:27,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:27" (1/1) ... [2021-10-19 14:47:27,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-19 14:47:27,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-19 14:47:27,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-19 14:47:27,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-19 14:47:27,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:27" (1/1) ... [2021-10-19 14:47:27,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:27" (1/1) ... [2021-10-19 14:47:27,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:27" (1/1) ... [2021-10-19 14:47:27,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:27" (1/1) ... [2021-10-19 14:47:27,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:27" (1/1) ... [2021-10-19 14:47:27,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:27" (1/1) ... [2021-10-19 14:47:27,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:27" (1/1) ... [2021-10-19 14:47:27,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-19 14:47:27,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-19 14:47:27,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-19 14:47:27,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-19 14:47:27,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:27" (1/1) ... [2021-10-19 14:47:27,826 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-19 14:47:27,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-19 14:47:27,850 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) [2021-10-19 14:47:27,855 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 [2021-10-19 14:47:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-19 14:47:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-19 14:47:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-19 14:47:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-19 14:47:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-19 14:47:27,880 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-19 14:47:27,881 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-19 14:47:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-19 14:47:27,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-19 14:47:27,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-19 14:47:27,882 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-19 14:47:28,219 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-19 14:47:28,219 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-19 14:47:28,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 02:47:28 BoogieIcfgContainer [2021-10-19 14:47:28,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-19 14:47:28,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-19 14:47:28,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-19 14:47:28,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-19 14:47:28,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 02:47:27" (1/3) ... [2021-10-19 14:47:28,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c30dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 02:47:28, skipping insertion in model container [2021-10-19 14:47:28,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:27" (2/3) ... [2021-10-19 14:47:28,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10c30dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 02:47:28, skipping insertion in model container [2021-10-19 14:47:28,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 02:47:28" (3/3) ... [2021-10-19 14:47:28,227 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2021-10-19 14:47:28,231 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-19 14:47:28,232 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-10-19 14:47:28,232 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-19 14:47:28,267 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,267 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,267 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,268 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,268 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,268 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,268 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,268 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,268 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,268 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,268 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,268 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,269 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,269 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,269 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,269 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,269 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,269 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,269 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,269 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,269 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,269 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,270 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,270 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,270 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,270 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,270 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,271 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,271 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,271 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,271 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,271 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,271 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,271 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,272 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,272 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,272 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,272 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,272 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,273 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,273 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,273 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,274 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,274 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,274 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,274 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,274 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,274 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,274 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,275 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,275 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,275 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,275 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,275 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,275 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,275 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,275 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,275 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,276 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,277 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,277 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,277 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,277 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,278 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,278 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,278 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,278 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,278 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,278 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,278 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,278 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,278 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,279 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,279 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,279 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,279 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,279 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,279 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,279 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,279 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,280 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,280 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,280 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,280 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,281 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,281 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,281 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,281 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,281 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,281 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,281 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,281 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,282 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,282 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,282 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,282 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,282 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,282 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,283 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,283 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,283 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,285 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,285 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,287 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,287 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,287 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,291 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,292 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,292 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,292 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,292 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,292 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,292 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,292 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,292 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,293 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,293 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,293 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,293 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,293 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,293 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,293 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,293 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,293 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,293 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,294 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,294 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,294 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,294 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,294 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,294 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,294 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,294 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,294 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,294 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,295 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,295 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,295 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,295 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,295 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,297 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,297 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,297 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,298 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,298 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~v.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,298 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,298 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,298 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,298 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_munge_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,298 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,299 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,299 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,299 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,299 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,299 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:28,305 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-19 14:47:28,340 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-19 14:47:28,345 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-19 14:47:28,345 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-10-19 14:47:28,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 196 flow [2021-10-19 14:47:28,380 INFO L129 PetriNetUnfolder]: 0/93 cut-off events. [2021-10-19 14:47:28,380 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-19 14:47:28,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 0/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-10-19 14:47:28,382 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 94 transitions, 196 flow [2021-10-19 14:47:28,385 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 86 transitions, 175 flow [2021-10-19 14:47:28,394 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2021-10-19 14:47:28,394 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:47:28,394 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:28,395 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:28,395 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:47:28,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:28,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1842975041, now seen corresponding path program 1 times [2021-10-19 14:47:28,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:28,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643654283] [2021-10-19 14:47:28,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:28,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:28,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:28,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:28,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643654283] [2021-10-19 14:47:28,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643654283] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:28,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:28,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-19 14:47:28,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105910051] [2021-10-19 14:47:28,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-19 14:47:28,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:28,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-19 14:47:28,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-19 14:47:28,770 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 94 [2021-10-19 14:47:28,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 86 transitions, 175 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:28,775 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:28,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 94 [2021-10-19 14:47:28,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:29,216 INFO L129 PetriNetUnfolder]: 347/925 cut-off events. [2021-10-19 14:47:29,216 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-19 14:47:29,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1665 conditions, 925 events. 347/925 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 5112 event pairs, 170 based on Foata normal form. 0/826 useless extension candidates. Maximal degree in co-relation 1633. Up to 526 conditions per place. [2021-10-19 14:47:29,228 INFO L132 encePairwiseOnDemand]: 83/94 looper letters, 91 selfloop transitions, 22 changer transitions 0/164 dead transitions. [2021-10-19 14:47:29,228 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 164 transitions, 557 flow [2021-10-19 14:47:29,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-19 14:47:29,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-19 14:47:29,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 468 transitions. [2021-10-19 14:47:29,243 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8297872340425532 [2021-10-19 14:47:29,244 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 468 transitions. [2021-10-19 14:47:29,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 468 transitions. [2021-10-19 14:47:29,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:29,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 468 transitions. [2021-10-19 14:47:29,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.0) internal successors, (468), 6 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:29,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:29,258 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:29,260 INFO L186 Difference]: Start difference. First operand has 90 places, 86 transitions, 175 flow. Second operand 6 states and 468 transitions. [2021-10-19 14:47:29,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 164 transitions, 557 flow [2021-10-19 14:47:29,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 164 transitions, 556 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:47:29,267 INFO L242 Difference]: Finished difference. Result has 99 places, 107 transitions, 324 flow [2021-10-19 14:47:29,269 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=99, PETRI_TRANSITIONS=107} [2021-10-19 14:47:29,270 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 9 predicate places. [2021-10-19 14:47:29,270 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 107 transitions, 324 flow [2021-10-19 14:47:29,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:29,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:29,271 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:29,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-19 14:47:29,271 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:47:29,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:29,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1630781041, now seen corresponding path program 1 times [2021-10-19 14:47:29,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:29,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535601262] [2021-10-19 14:47:29,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:29,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:29,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:29,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:29,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535601262] [2021-10-19 14:47:29,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535601262] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:29,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:29,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-19 14:47:29,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919068342] [2021-10-19 14:47:29,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-19 14:47:29,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:29,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-19 14:47:29,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-19 14:47:29,430 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 94 [2021-10-19 14:47:29,430 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 107 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 61.333333333333336) internal successors, (368), 6 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:29,431 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:29,431 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 94 [2021-10-19 14:47:29,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:29,615 INFO L129 PetriNetUnfolder]: 332/918 cut-off events. [2021-10-19 14:47:29,615 INFO L130 PetriNetUnfolder]: For 394/400 co-relation queries the response was YES. [2021-10-19 14:47:29,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2054 conditions, 918 events. 332/918 cut-off events. For 394/400 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5126 event pairs, 155 based on Foata normal form. 0/841 useless extension candidates. Maximal degree in co-relation 2019. Up to 590 conditions per place. [2021-10-19 14:47:29,621 INFO L132 encePairwiseOnDemand]: 83/94 looper letters, 79 selfloop transitions, 26 changer transitions 0/157 dead transitions. [2021-10-19 14:47:29,621 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 157 transitions, 724 flow [2021-10-19 14:47:29,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-19 14:47:29,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-19 14:47:29,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 445 transitions. [2021-10-19 14:47:29,623 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7890070921985816 [2021-10-19 14:47:29,623 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 445 transitions. [2021-10-19 14:47:29,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 445 transitions. [2021-10-19 14:47:29,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:29,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 445 transitions. [2021-10-19 14:47:29,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.16666666666667) internal successors, (445), 6 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:29,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:29,625 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:29,625 INFO L186 Difference]: Start difference. First operand has 99 places, 107 transitions, 324 flow. Second operand 6 states and 445 transitions. [2021-10-19 14:47:29,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 157 transitions, 724 flow [2021-10-19 14:47:29,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 157 transitions, 724 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-19 14:47:29,630 INFO L242 Difference]: Finished difference. Result has 109 places, 128 transitions, 508 flow [2021-10-19 14:47:29,630 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=508, PETRI_PLACES=109, PETRI_TRANSITIONS=128} [2021-10-19 14:47:29,631 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 19 predicate places. [2021-10-19 14:47:29,631 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 128 transitions, 508 flow [2021-10-19 14:47:29,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.333333333333336) internal successors, (368), 6 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:29,631 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:29,632 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:29,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-19 14:47:29,632 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:47:29,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:29,632 INFO L82 PathProgramCache]: Analyzing trace with hash 306467311, now seen corresponding path program 1 times [2021-10-19 14:47:29,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:29,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656256262] [2021-10-19 14:47:29,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:29,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:29,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:29,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:29,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656256262] [2021-10-19 14:47:29,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656256262] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:29,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:29,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-19 14:47:29,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437035925] [2021-10-19 14:47:29,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-19 14:47:29,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:29,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-19 14:47:29,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-19 14:47:29,740 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 94 [2021-10-19 14:47:29,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 128 transitions, 508 flow. Second operand has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:29,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:29,741 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 94 [2021-10-19 14:47:29,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:30,091 INFO L129 PetriNetUnfolder]: 502/1283 cut-off events. [2021-10-19 14:47:30,091 INFO L130 PetriNetUnfolder]: For 780/786 co-relation queries the response was YES. [2021-10-19 14:47:30,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3252 conditions, 1283 events. 502/1283 cut-off events. For 780/786 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 7448 event pairs, 196 based on Foata normal form. 0/1189 useless extension candidates. Maximal degree in co-relation 3211. Up to 895 conditions per place. [2021-10-19 14:47:30,099 INFO L132 encePairwiseOnDemand]: 75/94 looper letters, 94 selfloop transitions, 69 changer transitions 4/216 dead transitions. [2021-10-19 14:47:30,099 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 216 transitions, 1178 flow [2021-10-19 14:47:30,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-19 14:47:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-19 14:47:30,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 457 transitions. [2021-10-19 14:47:30,101 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8102836879432624 [2021-10-19 14:47:30,101 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 457 transitions. [2021-10-19 14:47:30,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 457 transitions. [2021-10-19 14:47:30,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:30,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 457 transitions. [2021-10-19 14:47:30,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:30,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:30,103 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:30,103 INFO L186 Difference]: Start difference. First operand has 109 places, 128 transitions, 508 flow. Second operand 6 states and 457 transitions. [2021-10-19 14:47:30,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 216 transitions, 1178 flow [2021-10-19 14:47:30,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 216 transitions, 1178 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-19 14:47:30,109 INFO L242 Difference]: Finished difference. Result has 119 places, 191 transitions, 1094 flow [2021-10-19 14:47:30,110 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1094, PETRI_PLACES=119, PETRI_TRANSITIONS=191} [2021-10-19 14:47:30,110 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 29 predicate places. [2021-10-19 14:47:30,110 INFO L470 AbstractCegarLoop]: Abstraction has has 119 places, 191 transitions, 1094 flow [2021-10-19 14:47:30,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.666666666666664) internal successors, (358), 6 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:30,110 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:30,111 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:30,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-19 14:47:30,111 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:47:30,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:30,111 INFO L82 PathProgramCache]: Analyzing trace with hash 931065363, now seen corresponding path program 1 times [2021-10-19 14:47:30,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:30,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794526106] [2021-10-19 14:47:30,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:30,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:30,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:30,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794526106] [2021-10-19 14:47:30,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794526106] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:30,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:30,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-19 14:47:30,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775924564] [2021-10-19 14:47:30,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-19 14:47:30,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:30,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-19 14:47:30,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-19 14:47:30,180 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 94 [2021-10-19 14:47:30,180 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 191 transitions, 1094 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:30,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:30,180 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 94 [2021-10-19 14:47:30,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:30,444 INFO L129 PetriNetUnfolder]: 545/1383 cut-off events. [2021-10-19 14:47:30,444 INFO L130 PetriNetUnfolder]: For 1829/1840 co-relation queries the response was YES. [2021-10-19 14:47:30,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4504 conditions, 1383 events. 545/1383 cut-off events. For 1829/1840 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 8324 event pairs, 155 based on Foata normal form. 0/1329 useless extension candidates. Maximal degree in co-relation 4459. Up to 994 conditions per place. [2021-10-19 14:47:30,452 INFO L132 encePairwiseOnDemand]: 79/94 looper letters, 144 selfloop transitions, 67 changer transitions 0/262 dead transitions. [2021-10-19 14:47:30,452 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 262 transitions, 1934 flow [2021-10-19 14:47:30,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-19 14:47:30,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-19 14:47:30,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 438 transitions. [2021-10-19 14:47:30,453 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.776595744680851 [2021-10-19 14:47:30,453 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 438 transitions. [2021-10-19 14:47:30,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 438 transitions. [2021-10-19 14:47:30,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:30,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 438 transitions. [2021-10-19 14:47:30,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:30,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:30,456 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:30,457 INFO L186 Difference]: Start difference. First operand has 119 places, 191 transitions, 1094 flow. Second operand 6 states and 438 transitions. [2021-10-19 14:47:30,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 262 transitions, 1934 flow [2021-10-19 14:47:30,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 262 transitions, 1870 flow, removed 32 selfloop flow, removed 0 redundant places. [2021-10-19 14:47:30,472 INFO L242 Difference]: Finished difference. Result has 129 places, 244 transitions, 1682 flow [2021-10-19 14:47:30,472 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1036, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1682, PETRI_PLACES=129, PETRI_TRANSITIONS=244} [2021-10-19 14:47:30,473 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 39 predicate places. [2021-10-19 14:47:30,473 INFO L470 AbstractCegarLoop]: Abstraction has has 129 places, 244 transitions, 1682 flow [2021-10-19 14:47:30,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:30,473 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:30,473 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:30,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-19 14:47:30,473 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:47:30,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:30,474 INFO L82 PathProgramCache]: Analyzing trace with hash -385331801, now seen corresponding path program 1 times [2021-10-19 14:47:30,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:30,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000771892] [2021-10-19 14:47:30,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:30,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:30,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:30,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:30,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000771892] [2021-10-19 14:47:30,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000771892] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:30,733 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:30,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:47:30,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151537628] [2021-10-19 14:47:30,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:47:30,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:30,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:47:30,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:47:30,735 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:47:30,735 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 244 transitions, 1682 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:30,735 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:30,735 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:47:30,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:31,635 INFO L129 PetriNetUnfolder]: 1216/3070 cut-off events. [2021-10-19 14:47:31,635 INFO L130 PetriNetUnfolder]: For 6015/6017 co-relation queries the response was YES. [2021-10-19 14:47:31,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11078 conditions, 3070 events. 1216/3070 cut-off events. For 6015/6017 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 21636 event pairs, 162 based on Foata normal form. 11/3015 useless extension candidates. Maximal degree in co-relation 11019. Up to 1123 conditions per place. [2021-10-19 14:47:31,659 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 459 selfloop transitions, 70 changer transitions 2/570 dead transitions. [2021-10-19 14:47:31,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 570 transitions, 5144 flow [2021-10-19 14:47:31,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:47:31,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:47:31,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 869 transitions. [2021-10-19 14:47:31,677 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6163120567375886 [2021-10-19 14:47:31,678 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 869 transitions. [2021-10-19 14:47:31,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 869 transitions. [2021-10-19 14:47:31,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:31,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 869 transitions. [2021-10-19 14:47:31,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 57.93333333333333) internal successors, (869), 15 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:31,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:31,681 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:31,682 INFO L186 Difference]: Start difference. First operand has 129 places, 244 transitions, 1682 flow. Second operand 15 states and 869 transitions. [2021-10-19 14:47:31,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 570 transitions, 5144 flow [2021-10-19 14:47:31,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 570 transitions, 4996 flow, removed 74 selfloop flow, removed 0 redundant places. [2021-10-19 14:47:31,720 INFO L242 Difference]: Finished difference. Result has 151 places, 301 transitions, 2462 flow [2021-10-19 14:47:31,721 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1608, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2462, PETRI_PLACES=151, PETRI_TRANSITIONS=301} [2021-10-19 14:47:31,721 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 61 predicate places. [2021-10-19 14:47:31,721 INFO L470 AbstractCegarLoop]: Abstraction has has 151 places, 301 transitions, 2462 flow [2021-10-19 14:47:31,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:31,721 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:31,722 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:31,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-19 14:47:31,722 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:47:31,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:31,722 INFO L82 PathProgramCache]: Analyzing trace with hash 951457457, now seen corresponding path program 2 times [2021-10-19 14:47:31,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:31,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481609767] [2021-10-19 14:47:31,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:31,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:32,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:32,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:32,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481609767] [2021-10-19 14:47:32,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481609767] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:32,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:32,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:47:32,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118019409] [2021-10-19 14:47:32,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:47:32,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:32,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:47:32,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:47:32,009 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:47:32,010 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 301 transitions, 2462 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:32,010 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:32,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:47:32,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:33,273 INFO L129 PetriNetUnfolder]: 1884/4738 cut-off events. [2021-10-19 14:47:33,274 INFO L130 PetriNetUnfolder]: For 12665/12681 co-relation queries the response was YES. [2021-10-19 14:47:33,288 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18229 conditions, 4738 events. 1884/4738 cut-off events. For 12665/12681 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 37206 event pairs, 244 based on Foata normal form. 7/4645 useless extension candidates. Maximal degree in co-relation 18159. Up to 2179 conditions per place. [2021-10-19 14:47:33,307 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 484 selfloop transitions, 111 changer transitions 0/634 dead transitions. [2021-10-19 14:47:33,307 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 634 transitions, 6394 flow [2021-10-19 14:47:33,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-19 14:47:33,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-19 14:47:33,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 787 transitions. [2021-10-19 14:47:33,309 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.644026186579378 [2021-10-19 14:47:33,309 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 787 transitions. [2021-10-19 14:47:33,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 787 transitions. [2021-10-19 14:47:33,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:33,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 787 transitions. [2021-10-19 14:47:33,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 60.53846153846154) internal successors, (787), 13 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:33,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:33,315 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:33,315 INFO L186 Difference]: Start difference. First operand has 151 places, 301 transitions, 2462 flow. Second operand 13 states and 787 transitions. [2021-10-19 14:47:33,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 634 transitions, 6394 flow [2021-10-19 14:47:33,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 634 transitions, 6379 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-10-19 14:47:33,379 INFO L242 Difference]: Finished difference. Result has 169 places, 376 transitions, 3911 flow [2021-10-19 14:47:33,380 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=2451, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3911, PETRI_PLACES=169, PETRI_TRANSITIONS=376} [2021-10-19 14:47:33,380 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 79 predicate places. [2021-10-19 14:47:33,380 INFO L470 AbstractCegarLoop]: Abstraction has has 169 places, 376 transitions, 3911 flow [2021-10-19 14:47:33,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:33,380 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:33,380 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:33,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-19 14:47:33,381 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:47:33,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:33,381 INFO L82 PathProgramCache]: Analyzing trace with hash -152300327, now seen corresponding path program 1 times [2021-10-19 14:47:33,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:33,381 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128025692] [2021-10-19 14:47:33,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:33,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:33,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:33,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:33,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128025692] [2021-10-19 14:47:33,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128025692] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:33,664 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:33,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:47:33,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485181585] [2021-10-19 14:47:33,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:47:33,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:33,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:47:33,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:47:33,666 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:47:33,666 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 376 transitions, 3911 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:33,666 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:33,666 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:47:33,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:35,372 INFO L129 PetriNetUnfolder]: 2574/6449 cut-off events. [2021-10-19 14:47:35,372 INFO L130 PetriNetUnfolder]: For 23291/23307 co-relation queries the response was YES. [2021-10-19 14:47:35,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26032 conditions, 6449 events. 2574/6449 cut-off events. For 23291/23307 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 54139 event pairs, 501 based on Foata normal form. 13/6319 useless extension candidates. Maximal degree in co-relation 25953. Up to 2403 conditions per place. [2021-10-19 14:47:35,426 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 753 selfloop transitions, 113 changer transitions 5/910 dead transitions. [2021-10-19 14:47:35,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 910 transitions, 10050 flow [2021-10-19 14:47:35,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:47:35,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:47:35,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 918 transitions. [2021-10-19 14:47:35,429 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6975683890577508 [2021-10-19 14:47:35,429 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 918 transitions. [2021-10-19 14:47:35,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 918 transitions. [2021-10-19 14:47:35,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:35,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 918 transitions. [2021-10-19 14:47:35,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 65.57142857142857) internal successors, (918), 14 states have internal predecessors, (918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:35,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:35,433 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:35,433 INFO L186 Difference]: Start difference. First operand has 169 places, 376 transitions, 3911 flow. Second operand 14 states and 918 transitions. [2021-10-19 14:47:35,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 910 transitions, 10050 flow [2021-10-19 14:47:35,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 910 transitions, 9987 flow, removed 20 selfloop flow, removed 4 redundant places. [2021-10-19 14:47:35,566 INFO L242 Difference]: Finished difference. Result has 188 places, 469 transitions, 5504 flow [2021-10-19 14:47:35,566 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=3869, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5504, PETRI_PLACES=188, PETRI_TRANSITIONS=469} [2021-10-19 14:47:35,566 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 98 predicate places. [2021-10-19 14:47:35,566 INFO L470 AbstractCegarLoop]: Abstraction has has 188 places, 469 transitions, 5504 flow [2021-10-19 14:47:35,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:35,567 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:35,567 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:35,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-19 14:47:35,567 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:47:35,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:35,568 INFO L82 PathProgramCache]: Analyzing trace with hash 918531027, now seen corresponding path program 3 times [2021-10-19 14:47:35,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:35,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684225982] [2021-10-19 14:47:35,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:35,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:35,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:35,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:35,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684225982] [2021-10-19 14:47:35,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684225982] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:35,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:35,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:47:35,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340178291] [2021-10-19 14:47:35,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:47:35,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:35,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:47:35,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:47:35,720 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:47:35,721 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 469 transitions, 5504 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:35,721 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:35,721 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:47:35,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:37,778 INFO L129 PetriNetUnfolder]: 3115/7814 cut-off events. [2021-10-19 14:47:37,778 INFO L130 PetriNetUnfolder]: For 34824/34834 co-relation queries the response was YES. [2021-10-19 14:47:37,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33370 conditions, 7814 events. 3115/7814 cut-off events. For 34824/34834 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 68244 event pairs, 568 based on Foata normal form. 11/7645 useless extension candidates. Maximal degree in co-relation 33281. Up to 2420 conditions per place. [2021-10-19 14:47:37,846 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 776 selfloop transitions, 157 changer transitions 1/973 dead transitions. [2021-10-19 14:47:37,846 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 973 transitions, 11930 flow [2021-10-19 14:47:37,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:47:37,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:47:37,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 903 transitions. [2021-10-19 14:47:37,848 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6404255319148936 [2021-10-19 14:47:37,848 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 903 transitions. [2021-10-19 14:47:37,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 903 transitions. [2021-10-19 14:47:37,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:37,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 903 transitions. [2021-10-19 14:47:37,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 60.2) internal successors, (903), 15 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:37,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:37,852 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:37,853 INFO L186 Difference]: Start difference. First operand has 188 places, 469 transitions, 5504 flow. Second operand 15 states and 903 transitions. [2021-10-19 14:47:37,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 973 transitions, 11930 flow [2021-10-19 14:47:38,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 973 transitions, 11900 flow, removed 11 selfloop flow, removed 3 redundant places. [2021-10-19 14:47:38,031 INFO L242 Difference]: Finished difference. Result has 208 places, 538 transitions, 7186 flow [2021-10-19 14:47:38,032 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=5475, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7186, PETRI_PLACES=208, PETRI_TRANSITIONS=538} [2021-10-19 14:47:38,032 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 118 predicate places. [2021-10-19 14:47:38,032 INFO L470 AbstractCegarLoop]: Abstraction has has 208 places, 538 transitions, 7186 flow [2021-10-19 14:47:38,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:38,032 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:38,033 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:38,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-19 14:47:38,033 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:47:38,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:38,033 INFO L82 PathProgramCache]: Analyzing trace with hash 244769411, now seen corresponding path program 2 times [2021-10-19 14:47:38,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:38,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150094673] [2021-10-19 14:47:38,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:38,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:38,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:38,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:38,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150094673] [2021-10-19 14:47:38,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150094673] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:38,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:38,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:47:38,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115946384] [2021-10-19 14:47:38,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:47:38,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:38,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:47:38,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:47:38,312 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:47:38,312 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 538 transitions, 7186 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:38,312 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:38,312 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:47:38,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:40,452 INFO L129 PetriNetUnfolder]: 3652/9116 cut-off events. [2021-10-19 14:47:40,453 INFO L130 PetriNetUnfolder]: For 50545/50574 co-relation queries the response was YES. [2021-10-19 14:47:40,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40724 conditions, 9116 events. 3652/9116 cut-off events. For 50545/50574 co-relation queries the response was YES. Maximal size of possible extension queue 383. Compared 82416 event pairs, 726 based on Foata normal form. 25/8933 useless extension candidates. Maximal degree in co-relation 40626. Up to 3394 conditions per place. [2021-10-19 14:47:40,524 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 892 selfloop transitions, 143 changer transitions 4/1078 dead transitions. [2021-10-19 14:47:40,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 1078 transitions, 14277 flow [2021-10-19 14:47:40,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:47:40,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:47:40,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 939 transitions. [2021-10-19 14:47:40,527 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6659574468085107 [2021-10-19 14:47:40,527 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 939 transitions. [2021-10-19 14:47:40,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 939 transitions. [2021-10-19 14:47:40,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:40,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 939 transitions. [2021-10-19 14:47:40,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 62.6) internal successors, (939), 15 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:40,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:40,531 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:40,531 INFO L186 Difference]: Start difference. First operand has 208 places, 538 transitions, 7186 flow. Second operand 15 states and 939 transitions. [2021-10-19 14:47:40,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 1078 transitions, 14277 flow [2021-10-19 14:47:40,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 1078 transitions, 14157 flow, removed 56 selfloop flow, removed 3 redundant places. [2021-10-19 14:47:40,944 INFO L242 Difference]: Finished difference. Result has 227 places, 597 transitions, 8412 flow [2021-10-19 14:47:40,944 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=7082, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=8412, PETRI_PLACES=227, PETRI_TRANSITIONS=597} [2021-10-19 14:47:40,945 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 137 predicate places. [2021-10-19 14:47:40,945 INFO L470 AbstractCegarLoop]: Abstraction has has 227 places, 597 transitions, 8412 flow [2021-10-19 14:47:40,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:40,945 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:40,945 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:40,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-19 14:47:40,945 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:47:40,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:40,946 INFO L82 PathProgramCache]: Analyzing trace with hash -556350461, now seen corresponding path program 4 times [2021-10-19 14:47:40,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:40,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167119574] [2021-10-19 14:47:40,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:40,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:41,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:41,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:41,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167119574] [2021-10-19 14:47:41,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167119574] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:41,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:41,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:47:41,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936387098] [2021-10-19 14:47:41,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:47:41,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:41,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:47:41,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:47:41,117 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:47:41,118 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 597 transitions, 8412 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:41,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:41,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:47:41,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:43,417 INFO L129 PetriNetUnfolder]: 3640/9088 cut-off events. [2021-10-19 14:47:43,417 INFO L130 PetriNetUnfolder]: For 57161/57189 co-relation queries the response was YES. [2021-10-19 14:47:43,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42158 conditions, 9088 events. 3640/9088 cut-off events. For 57161/57189 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 81722 event pairs, 710 based on Foata normal form. 15/8890 useless extension candidates. Maximal degree in co-relation 42052. Up to 3454 conditions per place. [2021-10-19 14:47:43,485 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 920 selfloop transitions, 177 changer transitions 1/1137 dead transitions. [2021-10-19 14:47:43,485 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 1137 transitions, 15397 flow [2021-10-19 14:47:43,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-19 14:47:43,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-19 14:47:43,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 982 transitions. [2021-10-19 14:47:43,488 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6529255319148937 [2021-10-19 14:47:43,488 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 982 transitions. [2021-10-19 14:47:43,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 982 transitions. [2021-10-19 14:47:43,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:43,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 982 transitions. [2021-10-19 14:47:43,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 61.375) internal successors, (982), 16 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:43,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 94.0) internal successors, (1598), 17 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:43,492 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 94.0) internal successors, (1598), 17 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:43,492 INFO L186 Difference]: Start difference. First operand has 227 places, 597 transitions, 8412 flow. Second operand 16 states and 982 transitions. [2021-10-19 14:47:43,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 1137 transitions, 15397 flow [2021-10-19 14:47:43,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 1137 transitions, 15311 flow, removed 21 selfloop flow, removed 4 redundant places. [2021-10-19 14:47:43,843 INFO L242 Difference]: Finished difference. Result has 245 places, 646 transitions, 9729 flow [2021-10-19 14:47:43,843 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=8341, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=597, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9729, PETRI_PLACES=245, PETRI_TRANSITIONS=646} [2021-10-19 14:47:43,843 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 155 predicate places. [2021-10-19 14:47:43,843 INFO L470 AbstractCegarLoop]: Abstraction has has 245 places, 646 transitions, 9729 flow [2021-10-19 14:47:43,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:43,844 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:43,844 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:43,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-19 14:47:43,844 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:47:43,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:43,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1103737397, now seen corresponding path program 3 times [2021-10-19 14:47:43,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:43,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048870244] [2021-10-19 14:47:43,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:43,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:44,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:44,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:44,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048870244] [2021-10-19 14:47:44,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048870244] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:44,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:44,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:47:44,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983916571] [2021-10-19 14:47:44,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:47:44,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:44,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:47:44,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:47:44,046 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:47:44,047 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 646 transitions, 9729 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:44,047 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:44,047 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:47:44,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:47,197 INFO L129 PetriNetUnfolder]: 3760/9401 cut-off events. [2021-10-19 14:47:47,197 INFO L130 PetriNetUnfolder]: For 67872/67897 co-relation queries the response was YES. [2021-10-19 14:47:47,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44690 conditions, 9401 events. 3760/9401 cut-off events. For 67872/67897 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 85648 event pairs, 647 based on Foata normal form. 27/9217 useless extension candidates. Maximal degree in co-relation 44577. Up to 3392 conditions per place. [2021-10-19 14:47:47,301 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 930 selfloop transitions, 176 changer transitions 1/1146 dead transitions. [2021-10-19 14:47:47,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 1146 transitions, 16638 flow [2021-10-19 14:47:47,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:47:47,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:47:47,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 982 transitions. [2021-10-19 14:47:47,303 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6964539007092199 [2021-10-19 14:47:47,303 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 982 transitions. [2021-10-19 14:47:47,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 982 transitions. [2021-10-19 14:47:47,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:47,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 982 transitions. [2021-10-19 14:47:47,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 65.46666666666667) internal successors, (982), 15 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:47,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:47,306 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:47,306 INFO L186 Difference]: Start difference. First operand has 245 places, 646 transitions, 9729 flow. Second operand 15 states and 982 transitions. [2021-10-19 14:47:47,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 1146 transitions, 16638 flow [2021-10-19 14:47:47,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 1146 transitions, 16350 flow, removed 138 selfloop flow, removed 4 redundant places. [2021-10-19 14:47:47,849 INFO L242 Difference]: Finished difference. Result has 260 places, 678 transitions, 10760 flow [2021-10-19 14:47:47,850 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=9555, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=646, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=10760, PETRI_PLACES=260, PETRI_TRANSITIONS=678} [2021-10-19 14:47:47,850 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 170 predicate places. [2021-10-19 14:47:47,850 INFO L470 AbstractCegarLoop]: Abstraction has has 260 places, 678 transitions, 10760 flow [2021-10-19 14:47:47,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:47,850 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:47,850 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:47,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-19 14:47:47,850 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:47:47,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:47,851 INFO L82 PathProgramCache]: Analyzing trace with hash 708878601, now seen corresponding path program 4 times [2021-10-19 14:47:47,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:47,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096713875] [2021-10-19 14:47:47,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:47,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:48,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:48,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:48,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096713875] [2021-10-19 14:47:48,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096713875] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:48,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:48,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:47:48,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217039685] [2021-10-19 14:47:48,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:47:48,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:48,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:47:48,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:47:48,010 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:47:48,010 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 678 transitions, 10760 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:48,010 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:48,011 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:47:48,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:50,828 INFO L129 PetriNetUnfolder]: 3848/9588 cut-off events. [2021-10-19 14:47:50,828 INFO L130 PetriNetUnfolder]: For 78299/78323 co-relation queries the response was YES. [2021-10-19 14:47:50,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46971 conditions, 9588 events. 3848/9588 cut-off events. For 78299/78323 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 87456 event pairs, 735 based on Foata normal form. 25/9394 useless extension candidates. Maximal degree in co-relation 46853. Up to 3394 conditions per place. [2021-10-19 14:47:50,933 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 1050 selfloop transitions, 162 changer transitions 1/1252 dead transitions. [2021-10-19 14:47:50,934 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 1252 transitions, 18152 flow [2021-10-19 14:47:50,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:47:50,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:47:50,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 986 transitions. [2021-10-19 14:47:50,936 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.699290780141844 [2021-10-19 14:47:50,937 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 986 transitions. [2021-10-19 14:47:50,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 986 transitions. [2021-10-19 14:47:50,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:50,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 986 transitions. [2021-10-19 14:47:50,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 65.73333333333333) internal successors, (986), 15 states have internal predecessors, (986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:50,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:50,942 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:50,942 INFO L186 Difference]: Start difference. First operand has 260 places, 678 transitions, 10760 flow. Second operand 15 states and 986 transitions. [2021-10-19 14:47:50,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 1252 transitions, 18152 flow [2021-10-19 14:47:51,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 1252 transitions, 17950 flow, removed 30 selfloop flow, removed 8 redundant places. [2021-10-19 14:47:51,568 INFO L242 Difference]: Finished difference. Result has 272 places, 708 transitions, 11551 flow [2021-10-19 14:47:51,569 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=10590, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11551, PETRI_PLACES=272, PETRI_TRANSITIONS=708} [2021-10-19 14:47:51,569 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 182 predicate places. [2021-10-19 14:47:51,569 INFO L470 AbstractCegarLoop]: Abstraction has has 272 places, 708 transitions, 11551 flow [2021-10-19 14:47:51,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:51,569 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:51,570 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:51,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-19 14:47:51,570 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:47:51,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:51,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1220717139, now seen corresponding path program 1 times [2021-10-19 14:47:51,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:51,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935921931] [2021-10-19 14:47:51,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:51,571 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:51,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:51,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:51,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935921931] [2021-10-19 14:47:51,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935921931] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:51,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:51,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:47:51,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934871780] [2021-10-19 14:47:51,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:47:51,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:51,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:47:51,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:47:51,779 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:47:51,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 708 transitions, 11551 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:51,780 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:51,780 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:47:51,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:55,118 INFO L129 PetriNetUnfolder]: 4321/10331 cut-off events. [2021-10-19 14:47:55,119 INFO L130 PetriNetUnfolder]: For 87888/87903 co-relation queries the response was YES. [2021-10-19 14:47:55,312 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51424 conditions, 10331 events. 4321/10331 cut-off events. For 87888/87903 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 92761 event pairs, 1290 based on Foata normal form. 19/10092 useless extension candidates. Maximal degree in co-relation 51300. Up to 3974 conditions per place. [2021-10-19 14:47:55,348 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 856 selfloop transitions, 238 changer transitions 7/1137 dead transitions. [2021-10-19 14:47:55,348 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 1137 transitions, 17689 flow [2021-10-19 14:47:55,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:47:55,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:47:55,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 892 transitions. [2021-10-19 14:47:55,351 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6778115501519757 [2021-10-19 14:47:55,351 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 892 transitions. [2021-10-19 14:47:55,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 892 transitions. [2021-10-19 14:47:55,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:55,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 892 transitions. [2021-10-19 14:47:55,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 63.714285714285715) internal successors, (892), 14 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:55,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:55,354 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:55,354 INFO L186 Difference]: Start difference. First operand has 272 places, 708 transitions, 11551 flow. Second operand 14 states and 892 transitions. [2021-10-19 14:47:55,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 1137 transitions, 17689 flow [2021-10-19 14:47:56,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 1137 transitions, 17476 flow, removed 45 selfloop flow, removed 7 redundant places. [2021-10-19 14:47:56,021 INFO L242 Difference]: Finished difference. Result has 287 places, 835 transitions, 13704 flow [2021-10-19 14:47:56,021 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=11340, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=708, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13704, PETRI_PLACES=287, PETRI_TRANSITIONS=835} [2021-10-19 14:47:56,021 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 197 predicate places. [2021-10-19 14:47:56,021 INFO L470 AbstractCegarLoop]: Abstraction has has 287 places, 835 transitions, 13704 flow [2021-10-19 14:47:56,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:56,022 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:56,022 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:56,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-19 14:47:56,044 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:47:56,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:56,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1531067335, now seen corresponding path program 5 times [2021-10-19 14:47:56,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:56,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238723891] [2021-10-19 14:47:56,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:56,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:56,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:56,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:56,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238723891] [2021-10-19 14:47:56,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238723891] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:56,332 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:56,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:47:56,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790308246] [2021-10-19 14:47:56,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:47:56,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:56,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:47:56,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:47:56,334 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:47:56,334 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 835 transitions, 13704 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:56,334 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:56,334 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:47:56,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:59,813 INFO L129 PetriNetUnfolder]: 4030/10059 cut-off events. [2021-10-19 14:47:59,813 INFO L130 PetriNetUnfolder]: For 98653/98704 co-relation queries the response was YES. [2021-10-19 14:47:59,885 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52975 conditions, 10059 events. 4030/10059 cut-off events. For 98653/98704 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 92826 event pairs, 671 based on Foata normal form. 32/9863 useless extension candidates. Maximal degree in co-relation 52842. Up to 3392 conditions per place. [2021-10-19 14:47:59,917 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 1026 selfloop transitions, 205 changer transitions 1/1275 dead transitions. [2021-10-19 14:47:59,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 1275 transitions, 20600 flow [2021-10-19 14:47:59,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:47:59,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:47:59,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 984 transitions. [2021-10-19 14:47:59,918 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6978723404255319 [2021-10-19 14:47:59,918 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 984 transitions. [2021-10-19 14:47:59,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 984 transitions. [2021-10-19 14:47:59,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:59,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 984 transitions. [2021-10-19 14:47:59,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 65.6) internal successors, (984), 15 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:59,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:59,922 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:59,922 INFO L186 Difference]: Start difference. First operand has 287 places, 835 transitions, 13704 flow. Second operand 15 states and 984 transitions. [2021-10-19 14:47:59,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 1275 transitions, 20600 flow [2021-10-19 14:48:00,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 1275 transitions, 20464 flow, removed 64 selfloop flow, removed 3 redundant places. [2021-10-19 14:48:00,911 INFO L242 Difference]: Finished difference. Result has 304 places, 882 transitions, 15269 flow [2021-10-19 14:48:00,912 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=13568, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=835, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15269, PETRI_PLACES=304, PETRI_TRANSITIONS=882} [2021-10-19 14:48:00,912 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 214 predicate places. [2021-10-19 14:48:00,912 INFO L470 AbstractCegarLoop]: Abstraction has has 304 places, 882 transitions, 15269 flow [2021-10-19 14:48:00,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:00,913 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:48:00,913 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:48:00,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-19 14:48:00,913 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:48:00,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:48:00,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1184120577, now seen corresponding path program 2 times [2021-10-19 14:48:00,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:48:00,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343613957] [2021-10-19 14:48:00,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:48:00,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:48:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:48:01,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:48:01,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:48:01,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343613957] [2021-10-19 14:48:01,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343613957] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:48:01,087 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:48:01,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:48:01,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569194117] [2021-10-19 14:48:01,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:48:01,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:48:01,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:48:01,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:48:01,089 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:48:01,089 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 882 transitions, 15269 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:01,089 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:48:01,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:48:01,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:48:05,139 INFO L129 PetriNetUnfolder]: 4720/11277 cut-off events. [2021-10-19 14:48:05,139 INFO L130 PetriNetUnfolder]: For 116885/116916 co-relation queries the response was YES. [2021-10-19 14:48:05,285 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60741 conditions, 11277 events. 4720/11277 cut-off events. For 116885/116916 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 102996 event pairs, 1292 based on Foata normal form. 31/11037 useless extension candidates. Maximal degree in co-relation 60602. Up to 3974 conditions per place. [2021-10-19 14:48:05,428 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 991 selfloop transitions, 307 changer transitions 5/1339 dead transitions. [2021-10-19 14:48:05,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 1339 transitions, 22366 flow [2021-10-19 14:48:05,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:48:05,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:48:05,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 940 transitions. [2021-10-19 14:48:05,439 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2021-10-19 14:48:05,439 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 940 transitions. [2021-10-19 14:48:05,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 940 transitions. [2021-10-19 14:48:05,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:48:05,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 940 transitions. [2021-10-19 14:48:05,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 62.666666666666664) internal successors, (940), 15 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:05,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:05,442 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:05,442 INFO L186 Difference]: Start difference. First operand has 304 places, 882 transitions, 15269 flow. Second operand 15 states and 940 transitions. [2021-10-19 14:48:05,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 1339 transitions, 22366 flow [2021-10-19 14:48:06,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 1339 transitions, 22105 flow, removed 58 selfloop flow, removed 8 redundant places. [2021-10-19 14:48:06,359 INFO L242 Difference]: Finished difference. Result has 316 places, 966 transitions, 17042 flow [2021-10-19 14:48:06,360 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=15008, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=882, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=603, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=17042, PETRI_PLACES=316, PETRI_TRANSITIONS=966} [2021-10-19 14:48:06,360 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 226 predicate places. [2021-10-19 14:48:06,360 INFO L470 AbstractCegarLoop]: Abstraction has has 316 places, 966 transitions, 17042 flow [2021-10-19 14:48:06,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:06,374 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:48:06,375 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:48:06,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-19 14:48:06,375 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:48:06,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:48:06,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1292815669, now seen corresponding path program 3 times [2021-10-19 14:48:06,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:48:06,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055397042] [2021-10-19 14:48:06,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:48:06,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:48:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:48:06,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:48:06,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:48:06,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055397042] [2021-10-19 14:48:06,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055397042] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:48:06,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:48:06,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:48:06,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552735019] [2021-10-19 14:48:06,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:48:06,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:48:06,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:48:06,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:48:06,536 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:48:06,536 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 966 transitions, 17042 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:06,536 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:48:06,536 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:48:06,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:48:11,005 INFO L129 PetriNetUnfolder]: 4699/11220 cut-off events. [2021-10-19 14:48:11,005 INFO L130 PetriNetUnfolder]: For 128905/128955 co-relation queries the response was YES. [2021-10-19 14:48:11,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63238 conditions, 11220 events. 4699/11220 cut-off events. For 128905/128955 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 102264 event pairs, 1235 based on Foata normal form. 37/10987 useless extension candidates. Maximal degree in co-relation 63094. Up to 3974 conditions per place. [2021-10-19 14:48:11,214 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1161 selfloop transitions, 242 changer transitions 8/1447 dead transitions. [2021-10-19 14:48:11,214 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 1447 transitions, 24679 flow [2021-10-19 14:48:11,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:48:11,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:48:11,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 964 transitions. [2021-10-19 14:48:11,215 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6836879432624113 [2021-10-19 14:48:11,215 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 964 transitions. [2021-10-19 14:48:11,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 964 transitions. [2021-10-19 14:48:11,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:48:11,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 964 transitions. [2021-10-19 14:48:11,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 64.26666666666667) internal successors, (964), 15 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:11,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:11,218 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:11,219 INFO L186 Difference]: Start difference. First operand has 316 places, 966 transitions, 17042 flow. Second operand 15 states and 964 transitions. [2021-10-19 14:48:11,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 1447 transitions, 24679 flow [2021-10-19 14:48:12,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 1447 transitions, 24467 flow, removed 29 selfloop flow, removed 7 redundant places. [2021-10-19 14:48:12,438 INFO L242 Difference]: Finished difference. Result has 329 places, 1037 transitions, 18537 flow [2021-10-19 14:48:12,439 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=16842, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=172, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=733, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18537, PETRI_PLACES=329, PETRI_TRANSITIONS=1037} [2021-10-19 14:48:12,439 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 239 predicate places. [2021-10-19 14:48:12,440 INFO L470 AbstractCegarLoop]: Abstraction has has 329 places, 1037 transitions, 18537 flow [2021-10-19 14:48:12,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:12,440 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:48:12,440 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:48:12,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-19 14:48:12,440 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:48:12,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:48:12,441 INFO L82 PathProgramCache]: Analyzing trace with hash 820468573, now seen corresponding path program 1 times [2021-10-19 14:48:12,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:48:12,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180516139] [2021-10-19 14:48:12,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:48:12,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:48:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:48:12,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:48:12,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:48:12,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180516139] [2021-10-19 14:48:12,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180516139] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:48:12,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:48:12,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:48:12,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391209534] [2021-10-19 14:48:12,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:48:12,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:48:12,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:48:12,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:48:12,586 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:48:12,586 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 1037 transitions, 18537 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:12,586 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:48:12,586 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:48:12,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:48:16,412 INFO L129 PetriNetUnfolder]: 4472/10848 cut-off events. [2021-10-19 14:48:16,412 INFO L130 PetriNetUnfolder]: For 145242/145323 co-relation queries the response was YES. [2021-10-19 14:48:16,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64078 conditions, 10848 events. 4472/10848 cut-off events. For 145242/145323 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 99342 event pairs, 1106 based on Foata normal form. 58/10678 useless extension candidates. Maximal degree in co-relation 63930. Up to 3921 conditions per place. [2021-10-19 14:48:16,573 INFO L132 encePairwiseOnDemand]: 73/94 looper letters, 1305 selfloop transitions, 177 changer transitions 1/1527 dead transitions. [2021-10-19 14:48:16,574 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 1527 transitions, 27761 flow [2021-10-19 14:48:16,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-19 14:48:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-19 14:48:16,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 962 transitions. [2021-10-19 14:48:16,575 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6396276595744681 [2021-10-19 14:48:16,575 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 962 transitions. [2021-10-19 14:48:16,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 962 transitions. [2021-10-19 14:48:16,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:48:16,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 962 transitions. [2021-10-19 14:48:16,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 60.125) internal successors, (962), 16 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:16,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 94.0) internal successors, (1598), 17 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:16,578 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 94.0) internal successors, (1598), 17 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:16,578 INFO L186 Difference]: Start difference. First operand has 329 places, 1037 transitions, 18537 flow. Second operand 16 states and 962 transitions. [2021-10-19 14:48:16,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 1527 transitions, 27761 flow [2021-10-19 14:48:18,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 1527 transitions, 27367 flow, removed 87 selfloop flow, removed 9 redundant places. [2021-10-19 14:48:18,028 INFO L242 Difference]: Finished difference. Result has 342 places, 1114 transitions, 19885 flow [2021-10-19 14:48:18,029 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=18204, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1037, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=888, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=19885, PETRI_PLACES=342, PETRI_TRANSITIONS=1114} [2021-10-19 14:48:18,029 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 252 predicate places. [2021-10-19 14:48:18,029 INFO L470 AbstractCegarLoop]: Abstraction has has 342 places, 1114 transitions, 19885 flow [2021-10-19 14:48:18,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:18,029 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:48:18,029 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:48:18,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-19 14:48:18,030 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:48:18,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:48:18,030 INFO L82 PathProgramCache]: Analyzing trace with hash -734886017, now seen corresponding path program 6 times [2021-10-19 14:48:18,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:48:18,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229479860] [2021-10-19 14:48:18,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:48:18,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:48:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:48:18,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:48:18,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:48:18,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229479860] [2021-10-19 14:48:18,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229479860] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:48:18,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:48:18,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:48:18,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258509811] [2021-10-19 14:48:18,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:48:18,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:48:18,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:48:18,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:48:18,214 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:48:18,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 1114 transitions, 19885 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:18,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:48:18,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:48:18,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:48:22,805 INFO L129 PetriNetUnfolder]: 4245/10579 cut-off events. [2021-10-19 14:48:22,805 INFO L130 PetriNetUnfolder]: For 152934/153033 co-relation queries the response was YES. [2021-10-19 14:48:22,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64067 conditions, 10579 events. 4245/10579 cut-off events. For 152934/153033 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 98667 event pairs, 659 based on Foata normal form. 46/10394 useless extension candidates. Maximal degree in co-relation 63912. Up to 3396 conditions per place. [2021-10-19 14:48:22,932 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 1221 selfloop transitions, 245 changer transitions 1/1519 dead transitions. [2021-10-19 14:48:22,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 1519 transitions, 27674 flow [2021-10-19 14:48:22,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:48:22,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:48:22,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 980 transitions. [2021-10-19 14:48:22,934 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6950354609929078 [2021-10-19 14:48:22,934 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 980 transitions. [2021-10-19 14:48:22,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 980 transitions. [2021-10-19 14:48:22,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:48:22,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 980 transitions. [2021-10-19 14:48:22,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 65.33333333333333) internal successors, (980), 15 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:22,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:22,937 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:22,937 INFO L186 Difference]: Start difference. First operand has 342 places, 1114 transitions, 19885 flow. Second operand 15 states and 980 transitions. [2021-10-19 14:48:22,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 1519 transitions, 27674 flow [2021-10-19 14:48:24,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 1519 transitions, 27481 flow, removed 61 selfloop flow, removed 4 redundant places. [2021-10-19 14:48:24,593 INFO L242 Difference]: Finished difference. Result has 357 places, 1153 transitions, 21573 flow [2021-10-19 14:48:24,594 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=19697, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=206, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=879, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=21573, PETRI_PLACES=357, PETRI_TRANSITIONS=1153} [2021-10-19 14:48:24,594 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 267 predicate places. [2021-10-19 14:48:24,594 INFO L470 AbstractCegarLoop]: Abstraction has has 357 places, 1153 transitions, 21573 flow [2021-10-19 14:48:24,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:24,594 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:48:24,594 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:48:24,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-19 14:48:24,595 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:48:24,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:48:24,597 INFO L82 PathProgramCache]: Analyzing trace with hash -22111015, now seen corresponding path program 4 times [2021-10-19 14:48:24,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:48:24,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686322707] [2021-10-19 14:48:24,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:48:24,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:48:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:48:24,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:48:24,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:48:24,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686322707] [2021-10-19 14:48:24,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686322707] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:48:24,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:48:24,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:48:24,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886539652] [2021-10-19 14:48:24,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:48:24,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:48:24,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:48:24,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:48:24,757 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:48:24,757 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 1153 transitions, 21573 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:24,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:48:24,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:48:24,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:48:29,611 INFO L129 PetriNetUnfolder]: 4824/11542 cut-off events. [2021-10-19 14:48:29,611 INFO L130 PetriNetUnfolder]: For 173664/173736 co-relation queries the response was YES. [2021-10-19 14:48:29,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71217 conditions, 11542 events. 4824/11542 cut-off events. For 173664/173736 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 105922 event pairs, 1318 based on Foata normal form. 49/11313 useless extension candidates. Maximal degree in co-relation 71057. Up to 3978 conditions per place. [2021-10-19 14:48:29,855 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1096 selfloop transitions, 387 changer transitions 6/1530 dead transitions. [2021-10-19 14:48:29,855 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 1530 transitions, 28849 flow [2021-10-19 14:48:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:48:29,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:48:29,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 942 transitions. [2021-10-19 14:48:29,857 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6680851063829787 [2021-10-19 14:48:29,857 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 942 transitions. [2021-10-19 14:48:29,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 942 transitions. [2021-10-19 14:48:29,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:48:29,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 942 transitions. [2021-10-19 14:48:29,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 62.8) internal successors, (942), 15 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:29,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:29,860 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:29,860 INFO L186 Difference]: Start difference. First operand has 357 places, 1153 transitions, 21573 flow. Second operand 15 states and 942 transitions. [2021-10-19 14:48:29,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 1530 transitions, 28849 flow [2021-10-19 14:48:31,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 1530 transitions, 28582 flow, removed 55 selfloop flow, removed 8 redundant places. [2021-10-19 14:48:31,562 INFO L242 Difference]: Finished difference. Result has 368 places, 1202 transitions, 23168 flow [2021-10-19 14:48:31,563 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=21306, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=339, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=771, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=23168, PETRI_PLACES=368, PETRI_TRANSITIONS=1202} [2021-10-19 14:48:31,563 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 278 predicate places. [2021-10-19 14:48:31,563 INFO L470 AbstractCegarLoop]: Abstraction has has 368 places, 1202 transitions, 23168 flow [2021-10-19 14:48:31,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:31,564 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:48:31,564 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:48:31,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-19 14:48:31,564 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:48:31,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:48:31,564 INFO L82 PathProgramCache]: Analyzing trace with hash -717443489, now seen corresponding path program 5 times [2021-10-19 14:48:31,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:48:31,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294956775] [2021-10-19 14:48:31,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:48:31,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:48:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:48:31,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:48:31,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:48:31,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294956775] [2021-10-19 14:48:31,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294956775] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:48:31,695 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:48:31,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:48:31,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090060771] [2021-10-19 14:48:31,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:48:31,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:48:31,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:48:31,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:48:31,696 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:48:31,697 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 1202 transitions, 23168 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:31,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:48:31,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:48:31,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:48:36,580 INFO L129 PetriNetUnfolder]: 4842/11567 cut-off events. [2021-10-19 14:48:36,580 INFO L130 PetriNetUnfolder]: For 183339/183405 co-relation queries the response was YES. [2021-10-19 14:48:36,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73430 conditions, 11567 events. 4842/11567 cut-off events. For 183339/183405 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 106133 event pairs, 1417 based on Foata normal form. 45/11334 useless extension candidates. Maximal degree in co-relation 73265. Up to 3975 conditions per place. [2021-10-19 14:48:36,745 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1078 selfloop transitions, 405 changer transitions 7/1531 dead transitions. [2021-10-19 14:48:36,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 1531 transitions, 29892 flow [2021-10-19 14:48:36,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:48:36,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:48:36,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 947 transitions. [2021-10-19 14:48:36,746 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6716312056737589 [2021-10-19 14:48:36,747 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 947 transitions. [2021-10-19 14:48:36,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 947 transitions. [2021-10-19 14:48:36,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:48:36,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 947 transitions. [2021-10-19 14:48:36,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 63.13333333333333) internal successors, (947), 15 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:36,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:36,749 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:36,749 INFO L186 Difference]: Start difference. First operand has 368 places, 1202 transitions, 23168 flow. Second operand 15 states and 947 transitions. [2021-10-19 14:48:36,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 1531 transitions, 29892 flow [2021-10-19 14:48:38,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 1531 transitions, 29554 flow, removed 52 selfloop flow, removed 7 redundant places. [2021-10-19 14:48:38,736 INFO L242 Difference]: Finished difference. Result has 379 places, 1235 transitions, 24515 flow [2021-10-19 14:48:38,736 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=22830, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=373, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=801, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=24515, PETRI_PLACES=379, PETRI_TRANSITIONS=1235} [2021-10-19 14:48:38,737 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 289 predicate places. [2021-10-19 14:48:38,737 INFO L470 AbstractCegarLoop]: Abstraction has has 379 places, 1235 transitions, 24515 flow [2021-10-19 14:48:38,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:38,737 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:48:38,737 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:48:38,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-19 14:48:38,737 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:48:38,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:48:38,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1236957207, now seen corresponding path program 5 times [2021-10-19 14:48:38,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:48:38,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526354439] [2021-10-19 14:48:38,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:48:38,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:48:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:48:38,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:48:38,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:48:38,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526354439] [2021-10-19 14:48:38,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526354439] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:48:38,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:48:38,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:48:38,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981254340] [2021-10-19 14:48:38,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:48:38,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:48:38,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:48:38,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:48:38,974 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:48:38,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 1235 transitions, 24515 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:38,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:48:38,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:48:38,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:48:43,239 INFO L129 PetriNetUnfolder]: 4369/10826 cut-off events. [2021-10-19 14:48:43,239 INFO L130 PetriNetUnfolder]: For 193403/193527 co-relation queries the response was YES. [2021-10-19 14:48:43,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71215 conditions, 10826 events. 4369/10826 cut-off events. For 193403/193527 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 101289 event pairs, 966 based on Foata normal form. 42/10618 useless extension candidates. Maximal degree in co-relation 71046. Up to 3956 conditions per place. [2021-10-19 14:48:43,378 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 1176 selfloop transitions, 349 changer transitions 0/1581 dead transitions. [2021-10-19 14:48:43,379 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 1581 transitions, 32776 flow [2021-10-19 14:48:43,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:48:43,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:48:43,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 838 transitions. [2021-10-19 14:48:43,380 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6367781155015197 [2021-10-19 14:48:43,380 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 838 transitions. [2021-10-19 14:48:43,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 838 transitions. [2021-10-19 14:48:43,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:48:43,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 838 transitions. [2021-10-19 14:48:43,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 59.857142857142854) internal successors, (838), 14 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:43,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:43,382 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:43,382 INFO L186 Difference]: Start difference. First operand has 379 places, 1235 transitions, 24515 flow. Second operand 14 states and 838 transitions. [2021-10-19 14:48:43,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 1581 transitions, 32776 flow [2021-10-19 14:48:45,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 1581 transitions, 32423 flow, removed 68 selfloop flow, removed 8 redundant places. [2021-10-19 14:48:45,359 INFO L242 Difference]: Finished difference. Result has 390 places, 1275 transitions, 26560 flow [2021-10-19 14:48:45,359 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=24190, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=309, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=897, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=26560, PETRI_PLACES=390, PETRI_TRANSITIONS=1275} [2021-10-19 14:48:45,359 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 300 predicate places. [2021-10-19 14:48:45,360 INFO L470 AbstractCegarLoop]: Abstraction has has 390 places, 1275 transitions, 26560 flow [2021-10-19 14:48:45,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:45,360 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:48:45,360 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:48:45,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-19 14:48:45,360 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:48:45,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:48:45,360 INFO L82 PathProgramCache]: Analyzing trace with hash 170559227, now seen corresponding path program 6 times [2021-10-19 14:48:45,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:48:45,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743792053] [2021-10-19 14:48:45,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:48:45,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:48:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:48:45,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:48:45,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:48:45,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743792053] [2021-10-19 14:48:45,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743792053] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:48:45,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:48:45,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:48:45,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356835510] [2021-10-19 14:48:45,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:48:45,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:48:45,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:48:45,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:48:45,476 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:48:45,477 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 1275 transitions, 26560 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:45,477 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:48:45,477 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:48:45,477 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:48:50,169 INFO L129 PetriNetUnfolder]: 4430/11081 cut-off events. [2021-10-19 14:48:50,169 INFO L130 PetriNetUnfolder]: For 210333/210439 co-relation queries the response was YES. [2021-10-19 14:48:50,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73919 conditions, 11081 events. 4430/11081 cut-off events. For 210333/210439 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 104099 event pairs, 899 based on Foata normal form. 38/10874 useless extension candidates. Maximal degree in co-relation 73744. Up to 3458 conditions per place. [2021-10-19 14:48:50,313 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 1285 selfloop transitions, 250 changer transitions 1/1592 dead transitions. [2021-10-19 14:48:50,313 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 1592 transitions, 33923 flow [2021-10-19 14:48:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:48:50,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:48:50,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 906 transitions. [2021-10-19 14:48:50,315 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6425531914893617 [2021-10-19 14:48:50,315 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 906 transitions. [2021-10-19 14:48:50,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 906 transitions. [2021-10-19 14:48:50,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:48:50,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 906 transitions. [2021-10-19 14:48:50,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 60.4) internal successors, (906), 15 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:50,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:50,317 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:50,317 INFO L186 Difference]: Start difference. First operand has 390 places, 1275 transitions, 26560 flow. Second operand 15 states and 906 transitions. [2021-10-19 14:48:50,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 1592 transitions, 33923 flow [2021-10-19 14:48:52,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 1592 transitions, 33558 flow, removed 122 selfloop flow, removed 6 redundant places. [2021-10-19 14:48:52,500 INFO L242 Difference]: Finished difference. Result has 403 places, 1300 transitions, 27397 flow [2021-10-19 14:48:52,500 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=26247, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=225, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1025, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27397, PETRI_PLACES=403, PETRI_TRANSITIONS=1300} [2021-10-19 14:48:52,500 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 313 predicate places. [2021-10-19 14:48:52,501 INFO L470 AbstractCegarLoop]: Abstraction has has 403 places, 1300 transitions, 27397 flow [2021-10-19 14:48:52,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:52,501 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:48:52,501 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:48:52,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-19 14:48:52,501 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:48:52,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:48:52,501 INFO L82 PathProgramCache]: Analyzing trace with hash -751675425, now seen corresponding path program 7 times [2021-10-19 14:48:52,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:48:52,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571667732] [2021-10-19 14:48:52,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:48:52,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:48:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:48:52,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:48:52,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:48:52,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571667732] [2021-10-19 14:48:52,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571667732] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:48:52,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:48:52,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:48:52,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183025961] [2021-10-19 14:48:52,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:48:52,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:48:52,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:48:52,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:48:52,684 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:48:52,684 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 1300 transitions, 27397 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:52,684 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:48:52,684 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:48:52,684 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:48:57,473 INFO L129 PetriNetUnfolder]: 4522/11253 cut-off events. [2021-10-19 14:48:57,473 INFO L130 PetriNetUnfolder]: For 225286/225410 co-relation queries the response was YES. [2021-10-19 14:48:57,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76586 conditions, 11253 events. 4522/11253 cut-off events. For 225286/225410 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 106002 event pairs, 902 based on Foata normal form. 49/11057 useless extension candidates. Maximal degree in co-relation 76406. Up to 4048 conditions per place. [2021-10-19 14:48:57,628 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 1219 selfloop transitions, 379 changer transitions 1/1655 dead transitions. [2021-10-19 14:48:57,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 1655 transitions, 36196 flow [2021-10-19 14:48:57,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:48:57,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:48:57,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 896 transitions. [2021-10-19 14:48:57,629 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6354609929078014 [2021-10-19 14:48:57,629 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 896 transitions. [2021-10-19 14:48:57,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 896 transitions. [2021-10-19 14:48:57,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:48:57,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 896 transitions. [2021-10-19 14:48:57,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 59.733333333333334) internal successors, (896), 15 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:57,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:57,778 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:57,778 INFO L186 Difference]: Start difference. First operand has 403 places, 1300 transitions, 27397 flow. Second operand 15 states and 896 transitions. [2021-10-19 14:48:57,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 1655 transitions, 36196 flow [2021-10-19 14:48:59,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 1655 transitions, 35634 flow, removed 84 selfloop flow, removed 9 redundant places. [2021-10-19 14:48:59,960 INFO L242 Difference]: Finished difference. Result has 413 places, 1335 transitions, 29395 flow [2021-10-19 14:48:59,961 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=26923, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=344, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=933, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=29395, PETRI_PLACES=413, PETRI_TRANSITIONS=1335} [2021-10-19 14:48:59,961 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 323 predicate places. [2021-10-19 14:48:59,961 INFO L470 AbstractCegarLoop]: Abstraction has has 413 places, 1335 transitions, 29395 flow [2021-10-19 14:48:59,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:48:59,961 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:48:59,961 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:48:59,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-19 14:48:59,961 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:48:59,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:48:59,962 INFO L82 PathProgramCache]: Analyzing trace with hash 662680013, now seen corresponding path program 2 times [2021-10-19 14:48:59,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:48:59,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689873116] [2021-10-19 14:48:59,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:48:59,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:48:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:49:00,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:49:00,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:49:00,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689873116] [2021-10-19 14:49:00,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689873116] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:49:00,085 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:49:00,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:49:00,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179242255] [2021-10-19 14:49:00,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:49:00,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:49:00,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:49:00,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:49:00,086 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:49:00,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 1335 transitions, 29395 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:00,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:49:00,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:49:00,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:49:05,689 INFO L129 PetriNetUnfolder]: 5067/12285 cut-off events. [2021-10-19 14:49:05,689 INFO L130 PetriNetUnfolder]: For 254630/254726 co-relation queries the response was YES. [2021-10-19 14:49:05,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84761 conditions, 12285 events. 5067/12285 cut-off events. For 254630/254726 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 115601 event pairs, 1440 based on Foata normal form. 43/12089 useless extension candidates. Maximal degree in co-relation 84577. Up to 4895 conditions per place. [2021-10-19 14:49:05,857 INFO L132 encePairwiseOnDemand]: 73/94 looper letters, 1236 selfloop transitions, 444 changer transitions 0/1728 dead transitions. [2021-10-19 14:49:05,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 1728 transitions, 38807 flow [2021-10-19 14:49:05,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:49:05,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:49:05,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 875 transitions. [2021-10-19 14:49:05,858 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6205673758865248 [2021-10-19 14:49:05,858 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 875 transitions. [2021-10-19 14:49:05,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 875 transitions. [2021-10-19 14:49:05,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:49:05,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 875 transitions. [2021-10-19 14:49:05,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 58.333333333333336) internal successors, (875), 15 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:05,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:05,860 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:05,860 INFO L186 Difference]: Start difference. First operand has 413 places, 1335 transitions, 29395 flow. Second operand 15 states and 875 transitions. [2021-10-19 14:49:05,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 1728 transitions, 38807 flow [2021-10-19 14:49:08,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 1728 transitions, 38468 flow, removed 17 selfloop flow, removed 9 redundant places. [2021-10-19 14:49:08,528 INFO L242 Difference]: Finished difference. Result has 424 places, 1458 transitions, 32897 flow [2021-10-19 14:49:08,529 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=29056, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=323, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=923, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=32897, PETRI_PLACES=424, PETRI_TRANSITIONS=1458} [2021-10-19 14:49:08,529 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 334 predicate places. [2021-10-19 14:49:08,529 INFO L470 AbstractCegarLoop]: Abstraction has has 424 places, 1458 transitions, 32897 flow [2021-10-19 14:49:08,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:08,529 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:49:08,529 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:49:08,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-19 14:49:08,529 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:49:08,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:49:08,530 INFO L82 PathProgramCache]: Analyzing trace with hash -24926819, now seen corresponding path program 8 times [2021-10-19 14:49:08,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:49:08,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543515281] [2021-10-19 14:49:08,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:49:08,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:49:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:49:08,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:49:08,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:49:08,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543515281] [2021-10-19 14:49:08,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543515281] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:49:08,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:49:08,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:49:08,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619039540] [2021-10-19 14:49:08,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:49:08,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:49:08,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:49:08,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:49:08,720 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:49:08,720 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 1458 transitions, 32897 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:08,721 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:49:08,721 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:49:08,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:49:14,382 INFO L129 PetriNetUnfolder]: 4821/11991 cut-off events. [2021-10-19 14:49:14,383 INFO L130 PetriNetUnfolder]: For 266177/266299 co-relation queries the response was YES. [2021-10-19 14:49:14,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85559 conditions, 11991 events. 4821/11991 cut-off events. For 266177/266299 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 114349 event pairs, 935 based on Foata normal form. 47/11788 useless extension candidates. Maximal degree in co-relation 85369. Up to 4376 conditions per place. [2021-10-19 14:49:14,563 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 1317 selfloop transitions, 385 changer transitions 1/1761 dead transitions. [2021-10-19 14:49:14,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 1761 transitions, 41391 flow [2021-10-19 14:49:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:49:14,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:49:14,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 898 transitions. [2021-10-19 14:49:14,564 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6368794326241135 [2021-10-19 14:49:14,564 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 898 transitions. [2021-10-19 14:49:14,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 898 transitions. [2021-10-19 14:49:14,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:49:14,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 898 transitions. [2021-10-19 14:49:14,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 59.86666666666667) internal successors, (898), 15 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:14,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:14,567 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:14,567 INFO L186 Difference]: Start difference. First operand has 424 places, 1458 transitions, 32897 flow. Second operand 15 states and 898 transitions. [2021-10-19 14:49:14,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 1761 transitions, 41391 flow [2021-10-19 14:49:17,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 1761 transitions, 41137 flow, removed 89 selfloop flow, removed 7 redundant places. [2021-10-19 14:49:17,693 INFO L242 Difference]: Finished difference. Result has 437 places, 1505 transitions, 35469 flow [2021-10-19 14:49:17,694 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=32643, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=338, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1084, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=35469, PETRI_PLACES=437, PETRI_TRANSITIONS=1505} [2021-10-19 14:49:17,694 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 347 predicate places. [2021-10-19 14:49:17,694 INFO L470 AbstractCegarLoop]: Abstraction has has 437 places, 1505 transitions, 35469 flow [2021-10-19 14:49:17,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:17,694 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:49:17,694 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:49:17,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-19 14:49:17,695 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:49:17,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:49:17,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1537301917, now seen corresponding path program 6 times [2021-10-19 14:49:17,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:49:17,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431613485] [2021-10-19 14:49:17,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:49:17,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:49:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:49:17,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:49:17,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:49:17,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431613485] [2021-10-19 14:49:17,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431613485] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:49:17,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:49:17,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:49:17,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394200344] [2021-10-19 14:49:17,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:49:17,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:49:17,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:49:17,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:49:17,862 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:49:17,863 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 1505 transitions, 35469 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:17,863 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:49:17,863 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:49:17,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:49:24,473 INFO L129 PetriNetUnfolder]: 5357/12840 cut-off events. [2021-10-19 14:49:24,473 INFO L130 PetriNetUnfolder]: For 290937/291016 co-relation queries the response was YES. [2021-10-19 14:49:24,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91752 conditions, 12840 events. 5357/12840 cut-off events. For 290937/291016 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 120404 event pairs, 1428 based on Foata normal form. 86/12645 useless extension candidates. Maximal degree in co-relation 91556. Up to 4137 conditions per place. [2021-10-19 14:49:24,663 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1497 selfloop transitions, 307 changer transitions 7/1854 dead transitions. [2021-10-19 14:49:24,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1854 transitions, 44241 flow [2021-10-19 14:49:24,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:49:24,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:49:24,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 924 transitions. [2021-10-19 14:49:24,665 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6553191489361702 [2021-10-19 14:49:24,665 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 924 transitions. [2021-10-19 14:49:24,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 924 transitions. [2021-10-19 14:49:24,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:49:24,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 924 transitions. [2021-10-19 14:49:24,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 61.6) internal successors, (924), 15 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:24,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:24,667 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:24,667 INFO L186 Difference]: Start difference. First operand has 437 places, 1505 transitions, 35469 flow. Second operand 15 states and 924 transitions. [2021-10-19 14:49:24,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1854 transitions, 44241 flow [2021-10-19 14:49:27,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 1854 transitions, 43694 flow, removed 164 selfloop flow, removed 7 redundant places. [2021-10-19 14:49:27,860 INFO L242 Difference]: Finished difference. Result has 451 places, 1549 transitions, 36956 flow [2021-10-19 14:49:27,861 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=35047, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=263, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=36956, PETRI_PLACES=451, PETRI_TRANSITIONS=1549} [2021-10-19 14:49:27,861 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 361 predicate places. [2021-10-19 14:49:27,861 INFO L470 AbstractCegarLoop]: Abstraction has has 451 places, 1549 transitions, 36956 flow [2021-10-19 14:49:27,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:27,861 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:49:27,861 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:49:27,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-19 14:49:27,862 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:49:27,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:49:27,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1015366289, now seen corresponding path program 3 times [2021-10-19 14:49:27,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:49:27,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864823197] [2021-10-19 14:49:27,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:49:27,862 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:49:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:49:27,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:49:27,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:49:27,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864823197] [2021-10-19 14:49:27,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864823197] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:49:27,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:49:27,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:49:27,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387420584] [2021-10-19 14:49:27,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:49:27,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:49:27,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:49:27,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:49:27,983 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:49:27,984 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 1549 transitions, 36956 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:27,984 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:49:27,984 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:49:27,984 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:49:34,591 INFO L129 PetriNetUnfolder]: 5124/12447 cut-off events. [2021-10-19 14:49:34,591 INFO L130 PetriNetUnfolder]: For 312707/312806 co-relation queries the response was YES. [2021-10-19 14:49:34,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92795 conditions, 12447 events. 5124/12447 cut-off events. For 312707/312806 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 117434 event pairs, 1446 based on Foata normal form. 42/12247 useless extension candidates. Maximal degree in co-relation 92592. Up to 3923 conditions per place. [2021-10-19 14:49:34,802 INFO L132 encePairwiseOnDemand]: 73/94 looper letters, 1526 selfloop transitions, 227 changer transitions 0/1804 dead transitions. [2021-10-19 14:49:34,802 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1804 transitions, 44029 flow [2021-10-19 14:49:34,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:49:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:49:34,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 880 transitions. [2021-10-19 14:49:34,819 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.624113475177305 [2021-10-19 14:49:34,819 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 880 transitions. [2021-10-19 14:49:34,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 880 transitions. [2021-10-19 14:49:34,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:49:34,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 880 transitions. [2021-10-19 14:49:34,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 58.666666666666664) internal successors, (880), 15 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:34,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:34,822 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:34,822 INFO L186 Difference]: Start difference. First operand has 451 places, 1549 transitions, 36956 flow. Second operand 15 states and 880 transitions. [2021-10-19 14:49:34,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 1804 transitions, 44029 flow [2021-10-19 14:49:38,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 1804 transitions, 43431 flow, removed 216 selfloop flow, removed 6 redundant places. [2021-10-19 14:49:38,615 INFO L242 Difference]: Finished difference. Result has 463 places, 1576 transitions, 37711 flow [2021-10-19 14:49:38,617 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=36506, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=200, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=37711, PETRI_PLACES=463, PETRI_TRANSITIONS=1576} [2021-10-19 14:49:38,617 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 373 predicate places. [2021-10-19 14:49:38,617 INFO L470 AbstractCegarLoop]: Abstraction has has 463 places, 1576 transitions, 37711 flow [2021-10-19 14:49:38,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:38,617 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:49:38,617 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:49:38,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-19 14:49:38,617 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:49:38,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:49:38,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1644728021, now seen corresponding path program 9 times [2021-10-19 14:49:38,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:49:38,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421482546] [2021-10-19 14:49:38,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:49:38,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:49:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:49:38,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:49:38,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:49:38,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421482546] [2021-10-19 14:49:38,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421482546] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:49:38,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:49:38,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:49:38,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629562389] [2021-10-19 14:49:38,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:49:38,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:49:38,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:49:38,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:49:38,795 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:49:38,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 1576 transitions, 37711 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:38,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:49:38,796 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:49:38,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:49:45,011 INFO L129 PetriNetUnfolder]: 4796/11917 cut-off events. [2021-10-19 14:49:45,012 INFO L130 PetriNetUnfolder]: For 311871/311995 co-relation queries the response was YES. [2021-10-19 14:49:45,146 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89877 conditions, 11917 events. 4796/11917 cut-off events. For 311871/311995 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 113629 event pairs, 986 based on Foata normal form. 48/11713 useless extension candidates. Maximal degree in co-relation 89671. Up to 4406 conditions per place. [2021-10-19 14:49:45,188 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 1377 selfloop transitions, 429 changer transitions 0/1868 dead transitions. [2021-10-19 14:49:45,189 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 1868 transitions, 46265 flow [2021-10-19 14:49:45,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:49:45,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:49:45,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 894 transitions. [2021-10-19 14:49:45,190 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6340425531914894 [2021-10-19 14:49:45,190 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 894 transitions. [2021-10-19 14:49:45,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 894 transitions. [2021-10-19 14:49:45,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:49:45,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 894 transitions. [2021-10-19 14:49:45,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 59.6) internal successors, (894), 15 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:45,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:45,192 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:45,192 INFO L186 Difference]: Start difference. First operand has 463 places, 1576 transitions, 37711 flow. Second operand 15 states and 894 transitions. [2021-10-19 14:49:45,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 1868 transitions, 46265 flow [2021-10-19 14:49:48,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 1868 transitions, 46054 flow, removed 67 selfloop flow, removed 7 redundant places. [2021-10-19 14:49:48,611 INFO L242 Difference]: Finished difference. Result has 475 places, 1609 transitions, 40206 flow [2021-10-19 14:49:48,612 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=37500, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1576, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=396, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=40206, PETRI_PLACES=475, PETRI_TRANSITIONS=1609} [2021-10-19 14:49:48,612 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 385 predicate places. [2021-10-19 14:49:48,612 INFO L470 AbstractCegarLoop]: Abstraction has has 475 places, 1609 transitions, 40206 flow [2021-10-19 14:49:48,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:48,612 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:49:48,612 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:49:48,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-19 14:49:48,612 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:49:48,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:49:48,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1815694059, now seen corresponding path program 4 times [2021-10-19 14:49:48,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:49:48,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012417278] [2021-10-19 14:49:48,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:49:48,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:49:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:49:48,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:49:48,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:49:48,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012417278] [2021-10-19 14:49:48,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012417278] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:49:48,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:49:48,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:49:48,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323750656] [2021-10-19 14:49:48,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:49:48,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:49:48,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:49:48,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:49:48,782 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:49:48,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 1609 transitions, 40206 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:48,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:49:48,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:49:48,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:49:55,401 INFO L129 PetriNetUnfolder]: 5260/12770 cut-off events. [2021-10-19 14:49:55,401 INFO L130 PetriNetUnfolder]: For 350543/350642 co-relation queries the response was YES. [2021-10-19 14:49:55,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97520 conditions, 12770 events. 5260/12770 cut-off events. For 350543/350642 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 121175 event pairs, 1524 based on Foata normal form. 42/12568 useless extension candidates. Maximal degree in co-relation 97309. Up to 5314 conditions per place. [2021-10-19 14:49:55,586 INFO L132 encePairwiseOnDemand]: 73/94 looper letters, 1309 selfloop transitions, 519 changer transitions 0/1879 dead transitions. [2021-10-19 14:49:55,586 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 489 places, 1879 transitions, 47931 flow [2021-10-19 14:49:55,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:49:55,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:49:55,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 872 transitions. [2021-10-19 14:49:55,587 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6184397163120567 [2021-10-19 14:49:55,587 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 872 transitions. [2021-10-19 14:49:55,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 872 transitions. [2021-10-19 14:49:55,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:49:55,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 872 transitions. [2021-10-19 14:49:55,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 58.13333333333333) internal successors, (872), 15 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:55,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:55,590 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:55,590 INFO L186 Difference]: Start difference. First operand has 475 places, 1609 transitions, 40206 flow. Second operand 15 states and 872 transitions. [2021-10-19 14:49:55,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 489 places, 1879 transitions, 47931 flow [2021-10-19 14:49:59,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 482 places, 1879 transitions, 47600 flow, removed 63 selfloop flow, removed 7 redundant places. [2021-10-19 14:49:59,167 INFO L242 Difference]: Finished difference. Result has 488 places, 1647 transitions, 42385 flow [2021-10-19 14:49:59,168 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=39875, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=481, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1091, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=42385, PETRI_PLACES=488, PETRI_TRANSITIONS=1647} [2021-10-19 14:49:59,168 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 398 predicate places. [2021-10-19 14:49:59,169 INFO L470 AbstractCegarLoop]: Abstraction has has 488 places, 1647 transitions, 42385 flow [2021-10-19 14:49:59,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:59,169 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:49:59,169 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:49:59,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-19 14:49:59,169 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:49:59,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:49:59,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1875010885, now seen corresponding path program 5 times [2021-10-19 14:49:59,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:49:59,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147813824] [2021-10-19 14:49:59,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:49:59,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:49:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:49:59,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:49:59,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:49:59,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147813824] [2021-10-19 14:49:59,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147813824] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:49:59,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:49:59,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:49:59,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215681063] [2021-10-19 14:49:59,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:49:59,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:49:59,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:49:59,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:49:59,299 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:49:59,299 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 1647 transitions, 42385 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:49:59,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:49:59,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:49:59,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:50:06,247 INFO L129 PetriNetUnfolder]: 5299/12867 cut-off events. [2021-10-19 14:50:06,247 INFO L130 PetriNetUnfolder]: For 370086/370185 co-relation queries the response was YES. [2021-10-19 14:50:06,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100588 conditions, 12867 events. 5299/12867 cut-off events. For 370086/370185 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 122257 event pairs, 1548 based on Foata normal form. 31/12654 useless extension candidates. Maximal degree in co-relation 100371. Up to 5543 conditions per place. [2021-10-19 14:50:06,477 INFO L132 encePairwiseOnDemand]: 73/94 looper letters, 1260 selfloop transitions, 548 changer transitions 0/1859 dead transitions. [2021-10-19 14:50:06,477 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 501 places, 1859 transitions, 49104 flow [2021-10-19 14:50:06,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:50:06,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:50:06,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 817 transitions. [2021-10-19 14:50:06,478 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6208206686930091 [2021-10-19 14:50:06,478 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 817 transitions. [2021-10-19 14:50:06,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 817 transitions. [2021-10-19 14:50:06,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:50:06,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 817 transitions. [2021-10-19 14:50:06,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 58.357142857142854) internal successors, (817), 14 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:06,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:06,480 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:06,480 INFO L186 Difference]: Start difference. First operand has 488 places, 1647 transitions, 42385 flow. Second operand 14 states and 817 transitions. [2021-10-19 14:50:06,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 501 places, 1859 transitions, 49104 flow [2021-10-19 14:50:10,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 1859 transitions, 48841 flow, removed 93 selfloop flow, removed 7 redundant places. [2021-10-19 14:50:10,573 INFO L242 Difference]: Finished difference. Result has 499 places, 1662 transitions, 44477 flow [2021-10-19 14:50:10,574 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=42138, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1647, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=533, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=44477, PETRI_PLACES=499, PETRI_TRANSITIONS=1662} [2021-10-19 14:50:10,574 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 409 predicate places. [2021-10-19 14:50:10,574 INFO L470 AbstractCegarLoop]: Abstraction has has 499 places, 1662 transitions, 44477 flow [2021-10-19 14:50:10,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:10,574 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:50:10,575 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:50:10,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-19 14:50:10,575 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:50:10,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:50:10,575 INFO L82 PathProgramCache]: Analyzing trace with hash -609009007, now seen corresponding path program 6 times [2021-10-19 14:50:10,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:50:10,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955945333] [2021-10-19 14:50:10,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:50:10,575 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:50:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:50:10,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:50:10,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:50:10,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955945333] [2021-10-19 14:50:10,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955945333] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:50:10,703 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:50:10,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:50:10,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437454755] [2021-10-19 14:50:10,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:50:10,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:50:10,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:50:10,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:50:10,704 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:50:10,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 1662 transitions, 44477 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:10,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:50:10,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:50:10,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:50:18,421 INFO L129 PetriNetUnfolder]: 5317/12931 cut-off events. [2021-10-19 14:50:18,421 INFO L130 PetriNetUnfolder]: For 389761/389860 co-relation queries the response was YES. [2021-10-19 14:50:18,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103630 conditions, 12931 events. 5317/12931 cut-off events. For 389761/389860 co-relation queries the response was YES. Maximal size of possible extension queue 546. Compared 123171 event pairs, 1539 based on Foata normal form. 42/12729 useless extension candidates. Maximal degree in co-relation 103408. Up to 5498 conditions per place. [2021-10-19 14:50:18,659 INFO L132 encePairwiseOnDemand]: 73/94 looper letters, 1286 selfloop transitions, 562 changer transitions 0/1899 dead transitions. [2021-10-19 14:50:18,659 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 513 places, 1899 transitions, 51762 flow [2021-10-19 14:50:18,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:50:18,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:50:18,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 872 transitions. [2021-10-19 14:50:18,661 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6184397163120567 [2021-10-19 14:50:18,661 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 872 transitions. [2021-10-19 14:50:18,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 872 transitions. [2021-10-19 14:50:18,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:50:18,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 872 transitions. [2021-10-19 14:50:18,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 58.13333333333333) internal successors, (872), 15 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:18,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:18,663 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:18,663 INFO L186 Difference]: Start difference. First operand has 499 places, 1662 transitions, 44477 flow. Second operand 15 states and 872 transitions. [2021-10-19 14:50:18,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 513 places, 1899 transitions, 51762 flow [2021-10-19 14:50:23,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 1899 transitions, 51462 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-10-19 14:50:23,118 INFO L242 Difference]: Finished difference. Result has 509 places, 1684 transitions, 46261 flow [2021-10-19 14:50:23,119 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=44177, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1662, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=540, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=46261, PETRI_PLACES=509, PETRI_TRANSITIONS=1684} [2021-10-19 14:50:23,119 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 419 predicate places. [2021-10-19 14:50:23,119 INFO L470 AbstractCegarLoop]: Abstraction has has 509 places, 1684 transitions, 46261 flow [2021-10-19 14:50:23,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:23,120 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:50:23,120 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:50:23,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-19 14:50:23,120 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:50:23,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:50:23,120 INFO L82 PathProgramCache]: Analyzing trace with hash -611647567, now seen corresponding path program 7 times [2021-10-19 14:50:23,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:50:23,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675507452] [2021-10-19 14:50:23,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:50:23,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:50:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:50:23,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:50:23,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:50:23,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675507452] [2021-10-19 14:50:23,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675507452] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:50:23,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:50:23,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:50:23,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363070061] [2021-10-19 14:50:23,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:50:23,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:50:23,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:50:23,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:50:23,263 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:50:23,263 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 509 places, 1684 transitions, 46261 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:23,263 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:50:23,263 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:50:23,263 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:50:31,012 INFO L129 PetriNetUnfolder]: 5545/13415 cut-off events. [2021-10-19 14:50:31,012 INFO L130 PetriNetUnfolder]: For 406119/406197 co-relation queries the response was YES. [2021-10-19 14:50:31,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107808 conditions, 13415 events. 5545/13415 cut-off events. For 406119/406197 co-relation queries the response was YES. Maximal size of possible extension queue 551. Compared 127853 event pairs, 1347 based on Foata normal form. 51/13191 useless extension candidates. Maximal degree in co-relation 107582. Up to 8978 conditions per place. [2021-10-19 14:50:31,270 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1048 selfloop transitions, 779 changer transitions 6/1883 dead transitions. [2021-10-19 14:50:31,270 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 1883 transitions, 53694 flow [2021-10-19 14:50:31,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-19 14:50:31,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-19 14:50:31,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 714 transitions. [2021-10-19 14:50:31,272 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6329787234042553 [2021-10-19 14:50:31,272 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 714 transitions. [2021-10-19 14:50:31,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 714 transitions. [2021-10-19 14:50:31,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:50:31,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 714 transitions. [2021-10-19 14:50:31,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 59.5) internal successors, (714), 12 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:31,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 94.0) internal successors, (1222), 13 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:31,288 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 94.0) internal successors, (1222), 13 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:31,289 INFO L186 Difference]: Start difference. First operand has 509 places, 1684 transitions, 46261 flow. Second operand 12 states and 714 transitions. [2021-10-19 14:50:31,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 1883 transitions, 53694 flow [2021-10-19 14:50:36,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 1883 transitions, 53151 flow, removed 68 selfloop flow, removed 9 redundant places. [2021-10-19 14:50:36,200 INFO L242 Difference]: Finished difference. Result has 515 places, 1702 transitions, 48792 flow [2021-10-19 14:50:36,201 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=45763, PETRI_DIFFERENCE_MINUEND_PLACES=500, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=761, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=908, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=48792, PETRI_PLACES=515, PETRI_TRANSITIONS=1702} [2021-10-19 14:50:36,201 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 425 predicate places. [2021-10-19 14:50:36,201 INFO L470 AbstractCegarLoop]: Abstraction has has 515 places, 1702 transitions, 48792 flow [2021-10-19 14:50:36,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:36,202 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:50:36,202 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:50:36,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-19 14:50:36,202 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:50:36,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:50:36,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1221485493, now seen corresponding path program 8 times [2021-10-19 14:50:36,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:50:36,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372427947] [2021-10-19 14:50:36,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:50:36,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:50:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:50:36,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:50:36,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:50:36,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372427947] [2021-10-19 14:50:36,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372427947] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:50:36,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:50:36,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:50:36,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628136191] [2021-10-19 14:50:36,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:50:36,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:50:36,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:50:36,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:50:36,374 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:50:36,375 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 1702 transitions, 48792 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:36,375 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:50:36,375 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:50:36,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:50:44,285 INFO L129 PetriNetUnfolder]: 5626/13612 cut-off events. [2021-10-19 14:50:44,285 INFO L130 PetriNetUnfolder]: For 440912/441019 co-relation queries the response was YES. [2021-10-19 14:50:44,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113111 conditions, 13612 events. 5626/13612 cut-off events. For 440912/441019 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 130017 event pairs, 1372 based on Foata normal form. 76/13411 useless extension candidates. Maximal degree in co-relation 112881. Up to 9096 conditions per place. [2021-10-19 14:50:44,525 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1629 selfloop transitions, 302 changer transitions 7/1988 dead transitions. [2021-10-19 14:50:44,525 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 1988 transitions, 57313 flow [2021-10-19 14:50:44,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:50:44,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:50:44,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 840 transitions. [2021-10-19 14:50:44,526 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6382978723404256 [2021-10-19 14:50:44,526 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 840 transitions. [2021-10-19 14:50:44,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 840 transitions. [2021-10-19 14:50:44,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:50:44,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 840 transitions. [2021-10-19 14:50:44,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 60.0) internal successors, (840), 14 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:44,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:44,528 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:44,528 INFO L186 Difference]: Start difference. First operand has 515 places, 1702 transitions, 48792 flow. Second operand 14 states and 840 transitions. [2021-10-19 14:50:44,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 1988 transitions, 57313 flow [2021-10-19 14:50:49,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 521 places, 1988 transitions, 56662 flow, removed 30 selfloop flow, removed 7 redundant places. [2021-10-19 14:50:49,921 INFO L242 Difference]: Finished difference. Result has 526 places, 1759 transitions, 50317 flow [2021-10-19 14:50:49,922 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=48207, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1702, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=245, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=50317, PETRI_PLACES=526, PETRI_TRANSITIONS=1759} [2021-10-19 14:50:49,922 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 436 predicate places. [2021-10-19 14:50:49,923 INFO L470 AbstractCegarLoop]: Abstraction has has 526 places, 1759 transitions, 50317 flow [2021-10-19 14:50:49,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:49,923 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:50:49,923 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:50:49,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-19 14:50:49,923 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:50:49,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:50:49,923 INFO L82 PathProgramCache]: Analyzing trace with hash -682249191, now seen corresponding path program 9 times [2021-10-19 14:50:49,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:50:49,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760484141] [2021-10-19 14:50:49,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:50:49,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:50:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:50:50,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:50:50,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:50:50,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760484141] [2021-10-19 14:50:50,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760484141] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:50:50,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:50:50,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:50:50,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15051814] [2021-10-19 14:50:50,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:50:50,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:50:50,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:50:50,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:50:50,063 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:50:50,063 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 1759 transitions, 50317 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:50,063 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:50:50,063 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:50:50,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:50:58,306 INFO L129 PetriNetUnfolder]: 5685/13748 cut-off events. [2021-10-19 14:50:58,307 INFO L130 PetriNetUnfolder]: For 472112/472206 co-relation queries the response was YES. [2021-10-19 14:50:58,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116728 conditions, 13748 events. 5685/13748 cut-off events. For 472112/472206 co-relation queries the response was YES. Maximal size of possible extension queue 562. Compared 131711 event pairs, 1355 based on Foata normal form. 51/13524 useless extension candidates. Maximal degree in co-relation 116493. Up to 9153 conditions per place. [2021-10-19 14:50:58,536 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1101 selfloop transitions, 811 changer transitions 6/1968 dead transitions. [2021-10-19 14:50:58,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 1968 transitions, 58221 flow [2021-10-19 14:50:58,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-19 14:50:58,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-19 14:50:58,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 763 transitions. [2021-10-19 14:50:58,538 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6243862520458265 [2021-10-19 14:50:58,538 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 763 transitions. [2021-10-19 14:50:58,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 763 transitions. [2021-10-19 14:50:58,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:50:58,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 763 transitions. [2021-10-19 14:50:58,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 58.69230769230769) internal successors, (763), 13 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:58,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:58,539 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:50:58,540 INFO L186 Difference]: Start difference. First operand has 526 places, 1759 transitions, 50317 flow. Second operand 13 states and 763 transitions. [2021-10-19 14:50:58,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 1968 transitions, 58221 flow [2021-10-19 14:51:03,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 1968 transitions, 57803 flow, removed 184 selfloop flow, removed 5 redundant places. [2021-10-19 14:51:03,856 INFO L242 Difference]: Finished difference. Result has 538 places, 1783 transitions, 53440 flow [2021-10-19 14:51:03,857 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=49943, PETRI_DIFFERENCE_MINUEND_PLACES=521, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=789, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=53440, PETRI_PLACES=538, PETRI_TRANSITIONS=1783} [2021-10-19 14:51:03,857 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 448 predicate places. [2021-10-19 14:51:03,857 INFO L470 AbstractCegarLoop]: Abstraction has has 538 places, 1783 transitions, 53440 flow [2021-10-19 14:51:03,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:03,857 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:51:03,857 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:51:03,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-19 14:51:03,857 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:51:03,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:51:03,857 INFO L82 PathProgramCache]: Analyzing trace with hash -981942007, now seen corresponding path program 7 times [2021-10-19 14:51:03,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:51:03,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072730831] [2021-10-19 14:51:03,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:51:03,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:51:03,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:51:04,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:51:04,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:51:04,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072730831] [2021-10-19 14:51:04,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072730831] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:51:04,039 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:51:04,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:51:04,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552246936] [2021-10-19 14:51:04,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:51:04,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:51:04,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:51:04,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:51:04,040 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:51:04,040 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 1783 transitions, 53440 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:04,040 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:51:04,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:51:04,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:51:12,212 INFO L129 PetriNetUnfolder]: 5167/13079 cut-off events. [2021-10-19 14:51:12,213 INFO L130 PetriNetUnfolder]: For 493882/494028 co-relation queries the response was YES. [2021-10-19 14:51:12,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115218 conditions, 13079 events. 5167/13079 cut-off events. For 493882/494028 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 128309 event pairs, 726 based on Foata normal form. 54/12895 useless extension candidates. Maximal degree in co-relation 114978. Up to 7366 conditions per place. [2021-10-19 14:51:12,450 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 1714 selfloop transitions, 263 changer transitions 2/2055 dead transitions. [2021-10-19 14:51:12,451 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 551 places, 2055 transitions, 61541 flow [2021-10-19 14:51:12,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:51:12,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:51:12,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 861 transitions. [2021-10-19 14:51:12,452 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6542553191489362 [2021-10-19 14:51:12,452 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 861 transitions. [2021-10-19 14:51:12,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 861 transitions. [2021-10-19 14:51:12,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:51:12,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 861 transitions. [2021-10-19 14:51:12,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 61.5) internal successors, (861), 14 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:12,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:12,454 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:12,454 INFO L186 Difference]: Start difference. First operand has 538 places, 1783 transitions, 53440 flow. Second operand 14 states and 861 transitions. [2021-10-19 14:51:12,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 551 places, 2055 transitions, 61541 flow [2021-10-19 14:51:17,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 2055 transitions, 60896 flow, removed 27 selfloop flow, removed 7 redundant places. [2021-10-19 14:51:17,898 INFO L242 Difference]: Finished difference. Result has 549 places, 1807 transitions, 53996 flow [2021-10-19 14:51:17,899 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=52823, PETRI_DIFFERENCE_MINUEND_PLACES=531, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1783, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=239, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1520, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=53996, PETRI_PLACES=549, PETRI_TRANSITIONS=1807} [2021-10-19 14:51:17,899 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 459 predicate places. [2021-10-19 14:51:17,900 INFO L470 AbstractCegarLoop]: Abstraction has has 549 places, 1807 transitions, 53996 flow [2021-10-19 14:51:17,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:17,900 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:51:17,900 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:51:17,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-19 14:51:17,900 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:51:17,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:51:17,900 INFO L82 PathProgramCache]: Analyzing trace with hash -993886223, now seen corresponding path program 10 times [2021-10-19 14:51:17,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:51:17,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649990968] [2021-10-19 14:51:17,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:51:17,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:51:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:51:18,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:51:18,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:51:18,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649990968] [2021-10-19 14:51:18,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649990968] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:51:18,057 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:51:18,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:51:18,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82399600] [2021-10-19 14:51:18,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:51:18,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:51:18,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:51:18,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:51:18,058 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:51:18,058 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 1807 transitions, 53996 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:18,058 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:51:18,058 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:51:18,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:51:27,553 INFO L129 PetriNetUnfolder]: 5847/14162 cut-off events. [2021-10-19 14:51:27,554 INFO L130 PetriNetUnfolder]: For 534653/534789 co-relation queries the response was YES. [2021-10-19 14:51:27,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125392 conditions, 14162 events. 5847/14162 cut-off events. For 534653/534789 co-relation queries the response was YES. Maximal size of possible extension queue 576. Compared 136581 event pairs, 1343 based on Foata normal form. 77/13956 useless extension candidates. Maximal degree in co-relation 125147. Up to 9458 conditions per place. [2021-10-19 14:51:27,807 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1143 selfloop transitions, 805 changer transitions 5/2003 dead transitions. [2021-10-19 14:51:27,807 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 2003 transitions, 61730 flow [2021-10-19 14:51:27,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-19 14:51:27,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-19 14:51:27,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 747 transitions. [2021-10-19 14:51:27,808 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6112929623567921 [2021-10-19 14:51:27,809 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 747 transitions. [2021-10-19 14:51:27,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 747 transitions. [2021-10-19 14:51:27,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:51:27,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 747 transitions. [2021-10-19 14:51:27,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 57.46153846153846) internal successors, (747), 13 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:27,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:27,810 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:27,810 INFO L186 Difference]: Start difference. First operand has 549 places, 1807 transitions, 53996 flow. Second operand 13 states and 747 transitions. [2021-10-19 14:51:27,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 2003 transitions, 61730 flow [2021-10-19 14:51:34,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 557 places, 2003 transitions, 61533 flow, removed 83 selfloop flow, removed 4 redundant places. [2021-10-19 14:51:34,052 INFO L242 Difference]: Finished difference. Result has 564 places, 1847 transitions, 57837 flow [2021-10-19 14:51:34,054 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=53799, PETRI_DIFFERENCE_MINUEND_PLACES=545, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1807, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=768, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1016, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=57837, PETRI_PLACES=564, PETRI_TRANSITIONS=1847} [2021-10-19 14:51:34,054 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 474 predicate places. [2021-10-19 14:51:34,054 INFO L470 AbstractCegarLoop]: Abstraction has has 564 places, 1847 transitions, 57837 flow [2021-10-19 14:51:34,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:34,054 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:51:34,054 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:51:34,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-19 14:51:34,054 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:51:34,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:51:34,055 INFO L82 PathProgramCache]: Analyzing trace with hash 250057821, now seen corresponding path program 8 times [2021-10-19 14:51:34,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:51:34,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467087875] [2021-10-19 14:51:34,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:51:34,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:51:34,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:51:34,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:51:34,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:51:34,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467087875] [2021-10-19 14:51:34,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467087875] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:51:34,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:51:34,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:51:34,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919294364] [2021-10-19 14:51:34,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:51:34,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:51:34,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:51:34,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:51:34,244 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:51:34,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 564 places, 1847 transitions, 57837 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:34,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:51:34,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:51:34,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:51:42,824 INFO L129 PetriNetUnfolder]: 5469/13812 cut-off events. [2021-10-19 14:51:42,824 INFO L130 PetriNetUnfolder]: For 579126/579289 co-relation queries the response was YES. [2021-10-19 14:51:43,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127302 conditions, 13812 events. 5469/13812 cut-off events. For 579126/579289 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 136613 event pairs, 745 based on Foata normal form. 54/13614 useless extension candidates. Maximal degree in co-relation 127050. Up to 7366 conditions per place. [2021-10-19 14:51:43,073 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 1796 selfloop transitions, 293 changer transitions 2/2177 dead transitions. [2021-10-19 14:51:43,073 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 577 places, 2177 transitions, 67885 flow [2021-10-19 14:51:43,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:51:43,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:51:43,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 901 transitions. [2021-10-19 14:51:43,074 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6846504559270516 [2021-10-19 14:51:43,074 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 901 transitions. [2021-10-19 14:51:43,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 901 transitions. [2021-10-19 14:51:43,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:51:43,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 901 transitions. [2021-10-19 14:51:43,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 64.35714285714286) internal successors, (901), 14 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:43,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:43,076 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:43,076 INFO L186 Difference]: Start difference. First operand has 564 places, 1847 transitions, 57837 flow. Second operand 14 states and 901 transitions. [2021-10-19 14:51:43,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 577 places, 2177 transitions, 67885 flow [2021-10-19 14:51:49,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 570 places, 2177 transitions, 67216 flow, removed 71 selfloop flow, removed 7 redundant places. [2021-10-19 14:51:49,584 INFO L242 Difference]: Finished difference. Result has 577 places, 1907 transitions, 59759 flow [2021-10-19 14:51:49,585 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=57189, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1847, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=59759, PETRI_PLACES=577, PETRI_TRANSITIONS=1907} [2021-10-19 14:51:49,585 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 487 predicate places. [2021-10-19 14:51:49,585 INFO L470 AbstractCegarLoop]: Abstraction has has 577 places, 1907 transitions, 59759 flow [2021-10-19 14:51:49,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:49,585 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:51:49,585 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:51:49,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-19 14:51:49,586 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:51:49,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:51:49,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1914726211, now seen corresponding path program 11 times [2021-10-19 14:51:49,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:51:49,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599300558] [2021-10-19 14:51:49,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:51:49,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:51:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:51:49,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:51:49,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:51:49,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599300558] [2021-10-19 14:51:49,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599300558] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:51:49,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:51:49,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:51:49,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034321891] [2021-10-19 14:51:49,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:51:49,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:51:49,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:51:49,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:51:49,707 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:51:49,707 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 1907 transitions, 59759 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:51:49,707 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:51:49,707 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:51:49,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:52:00,066 INFO L129 PetriNetUnfolder]: 6355/15335 cut-off events. [2021-10-19 14:52:00,067 INFO L130 PetriNetUnfolder]: For 644741/644896 co-relation queries the response was YES. [2021-10-19 14:52:00,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142227 conditions, 15335 events. 6355/15335 cut-off events. For 644741/644896 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 149424 event pairs, 1524 based on Foata normal form. 91/15124 useless extension candidates. Maximal degree in co-relation 141970. Up to 9970 conditions per place. [2021-10-19 14:52:00,412 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1320 selfloop transitions, 832 changer transitions 4/2206 dead transitions. [2021-10-19 14:52:00,413 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 590 places, 2206 transitions, 70497 flow [2021-10-19 14:52:00,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:52:00,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:52:00,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 807 transitions. [2021-10-19 14:52:00,415 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6132218844984803 [2021-10-19 14:52:00,415 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 807 transitions. [2021-10-19 14:52:00,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 807 transitions. [2021-10-19 14:52:00,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:52:00,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 807 transitions. [2021-10-19 14:52:00,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 57.642857142857146) internal successors, (807), 14 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:52:00,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:52:00,435 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:52:00,435 INFO L186 Difference]: Start difference. First operand has 577 places, 1907 transitions, 59759 flow. Second operand 14 states and 807 transitions. [2021-10-19 14:52:00,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 590 places, 2206 transitions, 70497 flow [2021-10-19 14:52:08,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 585 places, 2206 transitions, 70131 flow, removed 79 selfloop flow, removed 5 redundant places. [2021-10-19 14:52:08,725 INFO L242 Difference]: Finished difference. Result has 593 places, 1981 transitions, 64278 flow [2021-10-19 14:52:08,726 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=59393, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1907, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=763, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1084, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=64278, PETRI_PLACES=593, PETRI_TRANSITIONS=1981} [2021-10-19 14:52:08,727 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 503 predicate places. [2021-10-19 14:52:08,727 INFO L470 AbstractCegarLoop]: Abstraction has has 593 places, 1981 transitions, 64278 flow [2021-10-19 14:52:08,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:52:08,727 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:52:08,727 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:52:08,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-19 14:52:08,727 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:52:08,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:52:08,728 INFO L82 PathProgramCache]: Analyzing trace with hash 39599313, now seen corresponding path program 9 times [2021-10-19 14:52:08,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:52:08,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008774609] [2021-10-19 14:52:08,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:52:08,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:52:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:52:08,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:52:08,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:52:08,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008774609] [2021-10-19 14:52:08,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008774609] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:52:08,916 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:52:08,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:52:08,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991522734] [2021-10-19 14:52:08,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:52:08,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:52:08,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:52:08,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:52:08,917 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:52:08,918 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 593 places, 1981 transitions, 64278 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:52:08,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:52:08,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:52:08,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:52:19,470 INFO L129 PetriNetUnfolder]: 5950/14910 cut-off events. [2021-10-19 14:52:19,471 INFO L130 PetriNetUnfolder]: For 690737/690970 co-relation queries the response was YES. [2021-10-19 14:52:19,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143784 conditions, 14910 events. 5950/14910 cut-off events. For 690737/690970 co-relation queries the response was YES. Maximal size of possible extension queue 643. Compared 149284 event pairs, 680 based on Foata normal form. 76/14716 useless extension candidates. Maximal degree in co-relation 143519. Up to 8339 conditions per place. [2021-10-19 14:52:19,772 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 1762 selfloop transitions, 473 changer transitions 2/2326 dead transitions. [2021-10-19 14:52:19,772 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 606 places, 2326 transitions, 75902 flow [2021-10-19 14:52:19,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:52:19,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:52:19,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 854 transitions. [2021-10-19 14:52:19,773 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.648936170212766 [2021-10-19 14:52:19,773 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 854 transitions. [2021-10-19 14:52:19,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 854 transitions. [2021-10-19 14:52:19,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:52:19,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 854 transitions. [2021-10-19 14:52:19,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 61.0) internal successors, (854), 14 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:52:19,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:52:19,775 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:52:19,775 INFO L186 Difference]: Start difference. First operand has 593 places, 1981 transitions, 64278 flow. Second operand 14 states and 854 transitions. [2021-10-19 14:52:19,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 606 places, 2326 transitions, 75902 flow [2021-10-19 14:52:28,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 603 places, 2326 transitions, 75358 flow, removed 251 selfloop flow, removed 3 redundant places. [2021-10-19 14:52:28,760 INFO L242 Difference]: Finished difference. Result has 611 places, 2049 transitions, 67890 flow [2021-10-19 14:52:28,761 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=63734, PETRI_DIFFERENCE_MINUEND_PLACES=590, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1981, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=406, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=67890, PETRI_PLACES=611, PETRI_TRANSITIONS=2049} [2021-10-19 14:52:28,761 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 521 predicate places. [2021-10-19 14:52:28,761 INFO L470 AbstractCegarLoop]: Abstraction has has 611 places, 2049 transitions, 67890 flow [2021-10-19 14:52:28,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:52:28,761 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:52:28,761 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:52:28,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-19 14:52:28,761 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:52:28,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:52:28,762 INFO L82 PathProgramCache]: Analyzing trace with hash 2100027325, now seen corresponding path program 12 times [2021-10-19 14:52:28,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:52:28,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225985932] [2021-10-19 14:52:28,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:52:28,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:52:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:52:28,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:52:28,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:52:28,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225985932] [2021-10-19 14:52:28,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225985932] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:52:28,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:52:28,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:52:28,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039166387] [2021-10-19 14:52:28,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:52:28,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:52:28,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:52:28,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:52:28,881 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:52:28,881 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 611 places, 2049 transitions, 67890 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:52:28,881 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:52:28,881 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:52:28,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:52:40,699 INFO L129 PetriNetUnfolder]: 6806/16345 cut-off events. [2021-10-19 14:52:40,699 INFO L130 PetriNetUnfolder]: For 769726/769912 co-relation queries the response was YES. [2021-10-19 14:52:40,958 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159390 conditions, 16345 events. 6806/16345 cut-off events. For 769726/769912 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 160525 event pairs, 1714 based on Foata normal form. 105/16123 useless extension candidates. Maximal degree in co-relation 159116. Up to 9096 conditions per place. [2021-10-19 14:52:41,024 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1824 selfloop transitions, 481 changer transitions 5/2360 dead transitions. [2021-10-19 14:52:41,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 624 places, 2360 transitions, 78944 flow [2021-10-19 14:52:41,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:52:41,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:52:41,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 855 transitions. [2021-10-19 14:52:41,037 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6496960486322189 [2021-10-19 14:52:41,037 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 855 transitions. [2021-10-19 14:52:41,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 855 transitions. [2021-10-19 14:52:41,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:52:41,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 855 transitions. [2021-10-19 14:52:41,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 61.07142857142857) internal successors, (855), 14 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:52:41,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:52:41,039 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:52:41,039 INFO L186 Difference]: Start difference. First operand has 611 places, 2049 transitions, 67890 flow. Second operand 14 states and 855 transitions. [2021-10-19 14:52:41,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 624 places, 2360 transitions, 78944 flow [2021-10-19 14:52:51,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 618 places, 2360 transitions, 78464 flow, removed 123 selfloop flow, removed 6 redundant places. [2021-10-19 14:52:51,461 INFO L242 Difference]: Finished difference. Result has 624 places, 2124 transitions, 71129 flow [2021-10-19 14:52:51,463 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=67410, PETRI_DIFFERENCE_MINUEND_PLACES=605, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=409, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1576, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=71129, PETRI_PLACES=624, PETRI_TRANSITIONS=2124} [2021-10-19 14:52:51,463 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 534 predicate places. [2021-10-19 14:52:51,463 INFO L470 AbstractCegarLoop]: Abstraction has has 624 places, 2124 transitions, 71129 flow [2021-10-19 14:52:51,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:52:51,463 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:52:51,463 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:52:51,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-10-19 14:52:51,464 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:52:51,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:52:51,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1864672441, now seen corresponding path program 10 times [2021-10-19 14:52:51,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:52:51,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952521018] [2021-10-19 14:52:51,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:52:51,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:52:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:52:51,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:52:51,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:52:51,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952521018] [2021-10-19 14:52:51,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952521018] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:52:51,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:52:51,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:52:51,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16333299] [2021-10-19 14:52:51,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:52:51,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:52:51,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:52:51,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:52:51,647 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:52:51,648 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 624 places, 2124 transitions, 71129 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:52:51,648 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:52:51,648 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:52:51,648 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:53:03,252 INFO L129 PetriNetUnfolder]: 6122/15398 cut-off events. [2021-10-19 14:53:03,253 INFO L130 PetriNetUnfolder]: For 779513/779741 co-relation queries the response was YES. [2021-10-19 14:53:03,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 153386 conditions, 15398 events. 6122/15398 cut-off events. For 779513/779741 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 155208 event pairs, 876 based on Foata normal form. 75/15196 useless extension candidates. Maximal degree in co-relation 153108. Up to 7364 conditions per place. [2021-10-19 14:53:03,566 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 1977 selfloop transitions, 352 changer transitions 2/2426 dead transitions. [2021-10-19 14:53:03,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 2426 transitions, 81467 flow [2021-10-19 14:53:03,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:53:03,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:53:03,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 901 transitions. [2021-10-19 14:53:03,569 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6846504559270516 [2021-10-19 14:53:03,569 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 901 transitions. [2021-10-19 14:53:03,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 901 transitions. [2021-10-19 14:53:03,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:53:03,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 901 transitions. [2021-10-19 14:53:03,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 64.35714285714286) internal successors, (901), 14 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:53:03,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:53:03,572 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:53:03,572 INFO L186 Difference]: Start difference. First operand has 624 places, 2124 transitions, 71129 flow. Second operand 14 states and 901 transitions. [2021-10-19 14:53:03,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 2426 transitions, 81467 flow [2021-10-19 14:53:13,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 631 places, 2426 transitions, 80547 flow, removed 258 selfloop flow, removed 6 redundant places. [2021-10-19 14:53:13,600 INFO L242 Difference]: Finished difference. Result has 637 places, 2169 transitions, 73032 flow [2021-10-19 14:53:13,601 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=70209, PETRI_DIFFERENCE_MINUEND_PLACES=618, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=307, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1783, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=73032, PETRI_PLACES=637, PETRI_TRANSITIONS=2169} [2021-10-19 14:53:13,601 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 547 predicate places. [2021-10-19 14:53:13,601 INFO L470 AbstractCegarLoop]: Abstraction has has 637 places, 2169 transitions, 73032 flow [2021-10-19 14:53:13,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:53:13,602 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:53:13,602 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:53:13,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-10-19 14:53:13,602 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:53:13,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:53:13,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1381081519, now seen corresponding path program 7 times [2021-10-19 14:53:13,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:53:13,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946384724] [2021-10-19 14:53:13,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:53:13,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:53:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:53:13,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:53:13,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:53:13,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946384724] [2021-10-19 14:53:13,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946384724] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:53:13,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:53:13,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:53:13,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471362394] [2021-10-19 14:53:13,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:53:13,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:53:13,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:53:13,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:53:13,725 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:53:13,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 637 places, 2169 transitions, 73032 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:53:13,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:53:13,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:53:13,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:53:26,031 INFO L129 PetriNetUnfolder]: 6563/16010 cut-off events. [2021-10-19 14:53:26,032 INFO L130 PetriNetUnfolder]: For 816107/816310 co-relation queries the response was YES. [2021-10-19 14:53:26,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160745 conditions, 16010 events. 6563/16010 cut-off events. For 816107/816310 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 158498 event pairs, 1516 based on Foata normal form. 96/15825 useless extension candidates. Maximal degree in co-relation 160461. Up to 8883 conditions per place. [2021-10-19 14:53:26,484 INFO L132 encePairwiseOnDemand]: 73/94 looper letters, 2079 selfloop transitions, 315 changer transitions 2/2474 dead transitions. [2021-10-19 14:53:26,484 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 651 places, 2474 transitions, 84116 flow [2021-10-19 14:53:26,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-19 14:53:26,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-19 14:53:26,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 850 transitions. [2021-10-19 14:53:26,485 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6028368794326241 [2021-10-19 14:53:26,485 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 850 transitions. [2021-10-19 14:53:26,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 850 transitions. [2021-10-19 14:53:26,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:53:26,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 850 transitions. [2021-10-19 14:53:26,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 56.666666666666664) internal successors, (850), 15 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:53:26,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:53:26,487 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:53:26,487 INFO L186 Difference]: Start difference. First operand has 637 places, 2169 transitions, 73032 flow. Second operand 15 states and 850 transitions. [2021-10-19 14:53:26,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 651 places, 2474 transitions, 84116 flow [2021-10-19 14:53:36,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 2474 transitions, 83312 flow, removed 187 selfloop flow, removed 6 redundant places. [2021-10-19 14:53:36,635 INFO L242 Difference]: Finished difference. Result has 650 places, 2181 transitions, 73461 flow [2021-10-19 14:53:36,636 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=72378, PETRI_DIFFERENCE_MINUEND_PLACES=631, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=303, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1858, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=73461, PETRI_PLACES=650, PETRI_TRANSITIONS=2181} [2021-10-19 14:53:36,636 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 560 predicate places. [2021-10-19 14:53:36,636 INFO L470 AbstractCegarLoop]: Abstraction has has 650 places, 2181 transitions, 73461 flow [2021-10-19 14:53:36,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:53:36,637 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:53:36,637 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:53:36,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-10-19 14:53:36,637 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:53:36,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:53:36,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1941116877, now seen corresponding path program 11 times [2021-10-19 14:53:36,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:53:36,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939209513] [2021-10-19 14:53:36,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:53:36,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:53:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:53:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:53:36,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:53:36,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939209513] [2021-10-19 14:53:36,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939209513] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:53:36,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:53:36,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:53:36,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144226531] [2021-10-19 14:53:36,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:53:36,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:53:36,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:53:36,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:53:36,825 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:53:36,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 650 places, 2181 transitions, 73461 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:53:36,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:53:36,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:53:36,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:53:48,668 INFO L129 PetriNetUnfolder]: 6144/15458 cut-off events. [2021-10-19 14:53:48,669 INFO L130 PetriNetUnfolder]: For 804623/804850 co-relation queries the response was YES. [2021-10-19 14:53:48,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156180 conditions, 15458 events. 6144/15458 cut-off events. For 804623/804850 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 155897 event pairs, 819 based on Foata normal form. 71/15245 useless extension candidates. Maximal degree in co-relation 155891. Up to 7368 conditions per place. [2021-10-19 14:53:48,993 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 1936 selfloop transitions, 368 changer transitions 2/2404 dead transitions. [2021-10-19 14:53:48,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 662 places, 2404 transitions, 82167 flow [2021-10-19 14:53:48,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-19 14:53:48,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-19 14:53:48,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 829 transitions. [2021-10-19 14:53:48,994 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6783960720130933 [2021-10-19 14:53:48,994 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 829 transitions. [2021-10-19 14:53:48,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 829 transitions. [2021-10-19 14:53:48,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:53:48,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 829 transitions. [2021-10-19 14:53:48,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 63.76923076923077) internal successors, (829), 13 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:53:48,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:53:48,996 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:53:48,996 INFO L186 Difference]: Start difference. First operand has 650 places, 2181 transitions, 73461 flow. Second operand 13 states and 829 transitions. [2021-10-19 14:53:48,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 662 places, 2404 transitions, 82167 flow [2021-10-19 14:54:00,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 656 places, 2404 transitions, 81991 flow, removed 38 selfloop flow, removed 6 redundant places. [2021-10-19 14:54:00,187 INFO L242 Difference]: Finished difference. Result has 661 places, 2207 transitions, 75725 flow [2021-10-19 14:54:00,188 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=73313, PETRI_DIFFERENCE_MINUEND_PLACES=644, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=342, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1824, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=75725, PETRI_PLACES=661, PETRI_TRANSITIONS=2207} [2021-10-19 14:54:00,188 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 571 predicate places. [2021-10-19 14:54:00,189 INFO L470 AbstractCegarLoop]: Abstraction has has 661 places, 2207 transitions, 75725 flow [2021-10-19 14:54:00,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:54:00,189 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:54:00,189 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:54:00,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-10-19 14:54:00,189 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:54:00,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:54:00,189 INFO L82 PathProgramCache]: Analyzing trace with hash 658093111, now seen corresponding path program 13 times [2021-10-19 14:54:00,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:54:00,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070495357] [2021-10-19 14:54:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:54:00,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:54:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:54:00,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:54:00,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:54:00,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070495357] [2021-10-19 14:54:00,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070495357] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:54:00,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:54:00,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:54:00,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616990330] [2021-10-19 14:54:00,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:54:00,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:54:00,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:54:00,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:54:00,324 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:54:00,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 661 places, 2207 transitions, 75725 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:54:00,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:54:00,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:54:00,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:54:13,114 INFO L129 PetriNetUnfolder]: 7020/16868 cut-off events. [2021-10-19 14:54:13,114 INFO L130 PetriNetUnfolder]: For 876995/877167 co-relation queries the response was YES. [2021-10-19 14:54:13,406 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169799 conditions, 16868 events. 7020/16868 cut-off events. For 876995/877167 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 166744 event pairs, 1799 based on Foata normal form. 99/16619 useless extension candidates. Maximal degree in co-relation 169505. Up to 9100 conditions per place. [2021-10-19 14:54:13,589 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1863 selfloop transitions, 531 changer transitions 6/2453 dead transitions. [2021-10-19 14:54:13,589 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 674 places, 2453 transitions, 85584 flow [2021-10-19 14:54:13,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:54:13,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:54:13,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 853 transitions. [2021-10-19 14:54:13,590 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.648176291793313 [2021-10-19 14:54:13,590 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 853 transitions. [2021-10-19 14:54:13,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 853 transitions. [2021-10-19 14:54:13,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:54:13,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 853 transitions. [2021-10-19 14:54:13,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 60.92857142857143) internal successors, (853), 14 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:54:13,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:54:13,592 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:54:13,592 INFO L186 Difference]: Start difference. First operand has 661 places, 2207 transitions, 75725 flow. Second operand 14 states and 853 transitions. [2021-10-19 14:54:13,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 674 places, 2453 transitions, 85584 flow [2021-10-19 14:54:24,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 667 places, 2453 transitions, 85134 flow, removed 12 selfloop flow, removed 7 redundant places. [2021-10-19 14:54:24,734 INFO L242 Difference]: Finished difference. Result has 673 places, 2260 transitions, 78656 flow [2021-10-19 14:54:24,735 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=75275, PETRI_DIFFERENCE_MINUEND_PLACES=654, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=479, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=78656, PETRI_PLACES=673, PETRI_TRANSITIONS=2260} [2021-10-19 14:54:24,735 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 583 predicate places. [2021-10-19 14:54:24,735 INFO L470 AbstractCegarLoop]: Abstraction has has 673 places, 2260 transitions, 78656 flow [2021-10-19 14:54:24,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:54:24,735 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:54:24,735 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:54:24,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-10-19 14:54:24,735 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:54:24,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:54:24,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1700392279, now seen corresponding path program 12 times [2021-10-19 14:54:24,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:54:24,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031785779] [2021-10-19 14:54:24,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:54:24,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:54:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:54:24,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:54:24,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:54:24,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031785779] [2021-10-19 14:54:24,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031785779] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:54:24,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:54:24,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:54:24,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330345436] [2021-10-19 14:54:24,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:54:24,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:54:24,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:54:24,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:54:24,916 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:54:24,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 673 places, 2260 transitions, 78656 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:54:24,916 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:54:24,916 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:54:24,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:54:37,095 INFO L129 PetriNetUnfolder]: 6275/15809 cut-off events. [2021-10-19 14:54:37,095 INFO L130 PetriNetUnfolder]: For 879075/879319 co-relation queries the response was YES. [2021-10-19 14:54:37,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162743 conditions, 15809 events. 6275/15809 cut-off events. For 879075/879319 co-relation queries the response was YES. Maximal size of possible extension queue 678. Compared 160262 event pairs, 833 based on Foata normal form. 78/15599 useless extension candidates. Maximal degree in co-relation 162443. Up to 7368 conditions per place. [2021-10-19 14:54:37,554 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 2016 selfloop transitions, 392 changer transitions 2/2510 dead transitions. [2021-10-19 14:54:37,555 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 686 places, 2510 transitions, 88232 flow [2021-10-19 14:54:37,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:54:37,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:54:37,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 892 transitions. [2021-10-19 14:54:37,556 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6778115501519757 [2021-10-19 14:54:37,556 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 892 transitions. [2021-10-19 14:54:37,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 892 transitions. [2021-10-19 14:54:37,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:54:37,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 892 transitions. [2021-10-19 14:54:37,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 63.714285714285715) internal successors, (892), 14 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:54:37,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:54:37,558 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:54:37,558 INFO L186 Difference]: Start difference. First operand has 673 places, 2260 transitions, 78656 flow. Second operand 14 states and 892 transitions. [2021-10-19 14:54:37,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 686 places, 2510 transitions, 88232 flow [2021-10-19 14:54:48,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 680 places, 2510 transitions, 87426 flow, removed 200 selfloop flow, removed 6 redundant places. [2021-10-19 14:54:48,617 INFO L242 Difference]: Finished difference. Result has 684 places, 2294 transitions, 80621 flow [2021-10-19 14:54:48,618 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=77850, PETRI_DIFFERENCE_MINUEND_PLACES=667, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=358, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1880, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=80621, PETRI_PLACES=684, PETRI_TRANSITIONS=2294} [2021-10-19 14:54:48,618 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 594 predicate places. [2021-10-19 14:54:48,619 INFO L470 AbstractCegarLoop]: Abstraction has has 684 places, 2294 transitions, 80621 flow [2021-10-19 14:54:48,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:54:48,619 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:54:48,619 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:54:48,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-10-19 14:54:48,619 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:54:48,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:54:48,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1521661663, now seen corresponding path program 14 times [2021-10-19 14:54:48,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:54:48,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712548179] [2021-10-19 14:54:48,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:54:48,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:54:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:54:48,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:54:48,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:54:48,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712548179] [2021-10-19 14:54:48,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712548179] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:54:48,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:54:48,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:54:48,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084578014] [2021-10-19 14:54:48,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:54:48,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:54:48,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:54:48,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:54:48,756 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:54:48,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 684 places, 2294 transitions, 80621 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:54:48,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:54:48,756 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:54:48,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:55:02,328 INFO L129 PetriNetUnfolder]: 7132/17130 cut-off events. [2021-10-19 14:55:02,329 INFO L130 PetriNetUnfolder]: For 940541/940713 co-relation queries the response was YES. [2021-10-19 14:55:02,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 175480 conditions, 17130 events. 7132/17130 cut-off events. For 940541/940713 co-relation queries the response was YES. Maximal size of possible extension queue 693. Compared 169688 event pairs, 1866 based on Foata normal form. 99/16875 useless extension candidates. Maximal degree in co-relation 175176. Up to 9100 conditions per place. [2021-10-19 14:55:02,706 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1863 selfloop transitions, 564 changer transitions 7/2487 dead transitions. [2021-10-19 14:55:02,706 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 697 places, 2487 transitions, 89201 flow [2021-10-19 14:55:02,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:55:02,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:55:02,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 856 transitions. [2021-10-19 14:55:02,708 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6504559270516718 [2021-10-19 14:55:02,708 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 856 transitions. [2021-10-19 14:55:02,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 856 transitions. [2021-10-19 14:55:02,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:55:02,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 856 transitions. [2021-10-19 14:55:02,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 61.142857142857146) internal successors, (856), 14 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:55:02,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:55:02,709 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:55:02,709 INFO L186 Difference]: Start difference. First operand has 684 places, 2294 transitions, 80621 flow. Second operand 14 states and 856 transitions. [2021-10-19 14:55:02,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 697 places, 2487 transitions, 89201 flow [2021-10-19 14:55:14,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 692 places, 2487 transitions, 88790 flow, removed 101 selfloop flow, removed 5 redundant places. [2021-10-19 14:55:15,005 INFO L242 Difference]: Finished difference. Result has 697 places, 2333 transitions, 83154 flow [2021-10-19 14:55:15,006 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=80244, PETRI_DIFFERENCE_MINUEND_PLACES=679, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=527, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1735, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=83154, PETRI_PLACES=697, PETRI_TRANSITIONS=2333} [2021-10-19 14:55:15,006 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 607 predicate places. [2021-10-19 14:55:15,006 INFO L470 AbstractCegarLoop]: Abstraction has has 697 places, 2333 transitions, 83154 flow [2021-10-19 14:55:15,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:55:15,007 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:55:15,007 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:55:15,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-10-19 14:55:15,007 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:55:15,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:55:15,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1374388037, now seen corresponding path program 13 times [2021-10-19 14:55:15,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:55:15,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6344352] [2021-10-19 14:55:15,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:55:15,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:55:15,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:55:15,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:55:15,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:55:15,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6344352] [2021-10-19 14:55:15,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6344352] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:55:15,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:55:15,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:55:15,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609724067] [2021-10-19 14:55:15,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:55:15,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:55:15,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:55:15,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:55:15,233 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:55:15,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 697 places, 2333 transitions, 83154 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:55:15,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:55:15,233 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:55:15,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:55:28,128 INFO L129 PetriNetUnfolder]: 6411/16108 cut-off events. [2021-10-19 14:55:28,129 INFO L130 PetriNetUnfolder]: For 942509/942759 co-relation queries the response was YES. [2021-10-19 14:55:28,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169734 conditions, 16108 events. 6411/16108 cut-off events. For 942509/942759 co-relation queries the response was YES. Maximal size of possible extension queue 693. Compared 164172 event pairs, 611 based on Foata normal form. 97/15919 useless extension candidates. Maximal degree in co-relation 169425. Up to 9123 conditions per place. [2021-10-19 14:55:28,486 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 1990 selfloop transitions, 586 changer transitions 2/2680 dead transitions. [2021-10-19 14:55:28,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 708 places, 2680 transitions, 96074 flow [2021-10-19 14:55:28,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-19 14:55:28,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-19 14:55:28,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 740 transitions. [2021-10-19 14:55:28,487 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6560283687943262 [2021-10-19 14:55:28,488 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 740 transitions. [2021-10-19 14:55:28,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 740 transitions. [2021-10-19 14:55:28,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:55:28,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 740 transitions. [2021-10-19 14:55:28,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 61.666666666666664) internal successors, (740), 12 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:55:28,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 94.0) internal successors, (1222), 13 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:55:28,489 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 94.0) internal successors, (1222), 13 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:55:28,489 INFO L186 Difference]: Start difference. First operand has 697 places, 2333 transitions, 83154 flow. Second operand 12 states and 740 transitions. [2021-10-19 14:55:28,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 708 places, 2680 transitions, 96074 flow [2021-10-19 14:55:40,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 701 places, 2680 transitions, 95220 flow, removed 140 selfloop flow, removed 7 redundant places. [2021-10-19 14:55:40,606 INFO L242 Difference]: Finished difference. Result has 705 places, 2373 transitions, 86958 flow [2021-10-19 14:55:40,607 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=82333, PETRI_DIFFERENCE_MINUEND_PLACES=690, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=546, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1765, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=86958, PETRI_PLACES=705, PETRI_TRANSITIONS=2373} [2021-10-19 14:55:40,607 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 615 predicate places. [2021-10-19 14:55:40,607 INFO L470 AbstractCegarLoop]: Abstraction has has 705 places, 2373 transitions, 86958 flow [2021-10-19 14:55:40,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:55:40,607 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:55:40,607 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:55:40,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-10-19 14:55:40,608 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:55:40,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:55:40,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1166950071, now seen corresponding path program 15 times [2021-10-19 14:55:40,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:55:40,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451729830] [2021-10-19 14:55:40,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:55:40,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:55:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:55:40,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:55:40,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:55:40,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451729830] [2021-10-19 14:55:40,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451729830] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:55:40,766 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:55:40,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:55:40,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740521814] [2021-10-19 14:55:40,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:55:40,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:55:40,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:55:40,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:55:40,767 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:55:40,767 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 705 places, 2373 transitions, 86958 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:55:40,767 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:55:40,767 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:55:40,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:55:55,487 INFO L129 PetriNetUnfolder]: 7336/17645 cut-off events. [2021-10-19 14:55:55,487 INFO L130 PetriNetUnfolder]: For 1052883/1053067 co-relation queries the response was YES. [2021-10-19 14:55:55,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185377 conditions, 17645 events. 7336/17645 cut-off events. For 1052883/1053067 co-relation queries the response was YES. Maximal size of possible extension queue 709. Compared 175941 event pairs, 1914 based on Foata normal form. 100/17375 useless extension candidates. Maximal degree in co-relation 185064. Up to 11988 conditions per place. [2021-10-19 14:55:55,897 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1423 selfloop transitions, 1035 changer transitions 4/2515 dead transitions. [2021-10-19 14:55:55,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 717 places, 2515 transitions, 94746 flow [2021-10-19 14:55:55,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-19 14:55:55,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-19 14:55:55,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 730 transitions. [2021-10-19 14:55:55,899 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5973813420621932 [2021-10-19 14:55:55,899 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 730 transitions. [2021-10-19 14:55:55,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 730 transitions. [2021-10-19 14:55:55,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:55:55,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 730 transitions. [2021-10-19 14:55:55,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 56.15384615384615) internal successors, (730), 13 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:55:55,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:55:55,904 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:55:55,904 INFO L186 Difference]: Start difference. First operand has 705 places, 2373 transitions, 86958 flow. Second operand 13 states and 730 transitions. [2021-10-19 14:55:55,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 717 places, 2515 transitions, 94746 flow [2021-10-19 14:56:09,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 712 places, 2515 transitions, 94618 flow, removed 13 selfloop flow, removed 5 redundant places. [2021-10-19 14:56:10,022 INFO L242 Difference]: Finished difference. Result has 719 places, 2394 transitions, 91175 flow [2021-10-19 14:56:10,025 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=86830, PETRI_DIFFERENCE_MINUEND_PLACES=700, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1014, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=91175, PETRI_PLACES=719, PETRI_TRANSITIONS=2394} [2021-10-19 14:56:10,025 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 629 predicate places. [2021-10-19 14:56:10,025 INFO L470 AbstractCegarLoop]: Abstraction has has 719 places, 2394 transitions, 91175 flow [2021-10-19 14:56:10,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:56:10,025 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:56:10,025 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:56:10,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-10-19 14:56:10,025 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:56:10,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:56:10,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1526406521, now seen corresponding path program 14 times [2021-10-19 14:56:10,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:56:10,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829022808] [2021-10-19 14:56:10,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:56:10,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:56:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:56:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:56:10,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:56:10,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829022808] [2021-10-19 14:56:10,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829022808] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:56:10,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:56:10,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:56:10,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542447028] [2021-10-19 14:56:10,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:56:10,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:56:10,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:56:10,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:56:10,249 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:56:10,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 719 places, 2394 transitions, 91175 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:56:10,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:56:10,249 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:56:10,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:56:24,087 INFO L129 PetriNetUnfolder]: 6540/16467 cut-off events. [2021-10-19 14:56:24,088 INFO L130 PetriNetUnfolder]: For 1097709/1097964 co-relation queries the response was YES. [2021-10-19 14:56:24,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180711 conditions, 16467 events. 6540/16467 cut-off events. For 1097709/1097964 co-relation queries the response was YES. Maximal size of possible extension queue 703. Compared 168418 event pairs, 687 based on Foata normal form. 91/16255 useless extension candidates. Maximal degree in co-relation 180391. Up to 9225 conditions per place. [2021-10-19 14:56:24,521 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 1958 selfloop transitions, 578 changer transitions 2/2644 dead transitions. [2021-10-19 14:56:24,521 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 731 places, 2644 transitions, 101705 flow [2021-10-19 14:56:24,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-19 14:56:24,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-19 14:56:24,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 784 transitions. [2021-10-19 14:56:24,522 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6415711947626841 [2021-10-19 14:56:24,522 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 784 transitions. [2021-10-19 14:56:24,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 784 transitions. [2021-10-19 14:56:24,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:56:24,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 784 transitions. [2021-10-19 14:56:24,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 60.30769230769231) internal successors, (784), 13 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:56:24,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:56:24,524 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:56:24,524 INFO L186 Difference]: Start difference. First operand has 719 places, 2394 transitions, 91175 flow. Second operand 13 states and 784 transitions. [2021-10-19 14:56:24,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 731 places, 2644 transitions, 101705 flow [2021-10-19 14:56:38,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 724 places, 2644 transitions, 99724 flow, removed 50 selfloop flow, removed 7 redundant places. [2021-10-19 14:56:38,858 INFO L242 Difference]: Finished difference. Result has 731 places, 2428 transitions, 93365 flow [2021-10-19 14:56:38,860 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=89232, PETRI_DIFFERENCE_MINUEND_PLACES=712, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=545, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1832, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=93365, PETRI_PLACES=731, PETRI_TRANSITIONS=2428} [2021-10-19 14:56:38,860 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 641 predicate places. [2021-10-19 14:56:38,860 INFO L470 AbstractCegarLoop]: Abstraction has has 731 places, 2428 transitions, 93365 flow [2021-10-19 14:56:38,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:56:38,860 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:56:38,860 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:56:38,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-10-19 14:56:38,861 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:56:38,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:56:38,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1801875423, now seen corresponding path program 16 times [2021-10-19 14:56:38,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:56:38,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247863510] [2021-10-19 14:56:38,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:56:38,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:56:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:56:38,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:56:38,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:56:38,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247863510] [2021-10-19 14:56:38,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247863510] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:56:38,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:56:38,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:56:38,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078674535] [2021-10-19 14:56:38,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:56:38,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:56:38,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:56:38,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:56:38,987 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:56:38,988 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 731 places, 2428 transitions, 93365 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:56:38,988 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:56:38,988 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:56:38,988 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:56:54,636 INFO L129 PetriNetUnfolder]: 7548/18146 cut-off events. [2021-10-19 14:56:54,636 INFO L130 PetriNetUnfolder]: For 1221747/1221935 co-relation queries the response was YES. [2021-10-19 14:56:54,997 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197773 conditions, 18146 events. 7548/18146 cut-off events. For 1221747/1221935 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 181684 event pairs, 1996 based on Foata normal form. 111/17876 useless extension candidates. Maximal degree in co-relation 197447. Up to 12274 conditions per place. [2021-10-19 14:56:55,078 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1475 selfloop transitions, 1074 changer transitions 4/2606 dead transitions. [2021-10-19 14:56:55,078 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 744 places, 2606 transitions, 102386 flow [2021-10-19 14:56:55,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:56:55,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:56:55,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 786 transitions. [2021-10-19 14:56:55,079 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5972644376899696 [2021-10-19 14:56:55,079 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 786 transitions. [2021-10-19 14:56:55,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 786 transitions. [2021-10-19 14:56:55,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:56:55,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 786 transitions. [2021-10-19 14:56:55,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 56.142857142857146) internal successors, (786), 14 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:56:55,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:56:55,081 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:56:55,081 INFO L186 Difference]: Start difference. First operand has 731 places, 2428 transitions, 93365 flow. Second operand 14 states and 786 transitions. [2021-10-19 14:56:55,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 744 places, 2606 transitions, 102386 flow [2021-10-19 14:57:09,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 739 places, 2606 transitions, 102241 flow, removed 41 selfloop flow, removed 5 redundant places. [2021-10-19 14:57:09,965 INFO L242 Difference]: Finished difference. Result has 745 places, 2466 transitions, 98439 flow [2021-10-19 14:57:09,966 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=93220, PETRI_DIFFERENCE_MINUEND_PLACES=726, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1037, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=98439, PETRI_PLACES=745, PETRI_TRANSITIONS=2466} [2021-10-19 14:57:09,966 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 655 predicate places. [2021-10-19 14:57:09,966 INFO L470 AbstractCegarLoop]: Abstraction has has 745 places, 2466 transitions, 98439 flow [2021-10-19 14:57:09,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:57:09,966 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:57:09,966 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:57:09,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-10-19 14:57:09,966 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:57:09,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:57:09,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1784842197, now seen corresponding path program 15 times [2021-10-19 14:57:09,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:57:09,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628196061] [2021-10-19 14:57:09,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:57:09,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:57:09,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:57:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:57:10,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:57:10,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628196061] [2021-10-19 14:57:10,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628196061] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:57:10,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:57:10,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:57:10,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577795841] [2021-10-19 14:57:10,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:57:10,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:57:10,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:57:10,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:57:10,158 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:57:10,158 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 745 places, 2466 transitions, 98439 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:57:10,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:57:10,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:57:10,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:57:25,089 INFO L129 PetriNetUnfolder]: 6822/17153 cut-off events. [2021-10-19 14:57:25,090 INFO L130 PetriNetUnfolder]: For 1291355/1291628 co-relation queries the response was YES. [2021-10-19 14:57:25,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195447 conditions, 17153 events. 6822/17153 cut-off events. For 1291355/1291628 co-relation queries the response was YES. Maximal size of possible extension queue 734. Compared 176554 event pairs, 667 based on Foata normal form. 106/16947 useless extension candidates. Maximal degree in co-relation 195115. Up to 9431 conditions per place. [2021-10-19 14:57:25,677 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 2081 selfloop transitions, 633 changer transitions 2/2825 dead transitions. [2021-10-19 14:57:25,677 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 758 places, 2825 transitions, 112479 flow [2021-10-19 14:57:25,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:57:25,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:57:25,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 851 transitions. [2021-10-19 14:57:25,678 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6466565349544073 [2021-10-19 14:57:25,678 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 851 transitions. [2021-10-19 14:57:25,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 851 transitions. [2021-10-19 14:57:25,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:57:25,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 851 transitions. [2021-10-19 14:57:25,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 60.785714285714285) internal successors, (851), 14 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:57:25,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:57:25,682 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:57:25,682 INFO L186 Difference]: Start difference. First operand has 745 places, 2466 transitions, 98439 flow. Second operand 14 states and 851 transitions. [2021-10-19 14:57:25,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 758 places, 2825 transitions, 112479 flow [2021-10-19 14:57:41,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 752 places, 2825 transitions, 112157 flow, removed 133 selfloop flow, removed 6 redundant places. [2021-10-19 14:57:41,955 INFO L242 Difference]: Finished difference. Result has 759 places, 2525 transitions, 103592 flow [2021-10-19 14:57:41,956 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=98117, PETRI_DIFFERENCE_MINUEND_PLACES=739, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=575, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1853, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=103592, PETRI_PLACES=759, PETRI_TRANSITIONS=2525} [2021-10-19 14:57:41,956 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 669 predicate places. [2021-10-19 14:57:41,956 INFO L470 AbstractCegarLoop]: Abstraction has has 759 places, 2525 transitions, 103592 flow [2021-10-19 14:57:41,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:57:41,956 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:57:41,957 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:57:41,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-10-19 14:57:41,957 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:57:41,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:57:41,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1797759399, now seen corresponding path program 17 times [2021-10-19 14:57:41,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:57:41,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486492565] [2021-10-19 14:57:41,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:57:41,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:57:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:57:42,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:57:42,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:57:42,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486492565] [2021-10-19 14:57:42,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486492565] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:57:42,084 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:57:42,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:57:42,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978412500] [2021-10-19 14:57:42,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:57:42,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:57:42,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:57:42,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:57:42,085 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:57:42,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 759 places, 2525 transitions, 103592 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:57:42,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:57:42,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:57:42,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:58:00,155 INFO L129 PetriNetUnfolder]: 7910/18981 cut-off events. [2021-10-19 14:58:00,155 INFO L130 PetriNetUnfolder]: For 1442647/1442838 co-relation queries the response was YES. [2021-10-19 14:58:00,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 217190 conditions, 18981 events. 7910/18981 cut-off events. For 1442647/1442838 co-relation queries the response was YES. Maximal size of possible extension queue 761. Compared 191343 event pairs, 2134 based on Foata normal form. 123/18704 useless extension candidates. Maximal degree in co-relation 216851. Up to 12797 conditions per place. [2021-10-19 14:58:00,784 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1559 selfloop transitions, 1127 changer transitions 4/2743 dead transitions. [2021-10-19 14:58:00,785 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 772 places, 2743 transitions, 113936 flow [2021-10-19 14:58:00,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:58:00,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:58:00,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 798 transitions. [2021-10-19 14:58:00,786 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6063829787234043 [2021-10-19 14:58:00,786 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 798 transitions. [2021-10-19 14:58:00,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 798 transitions. [2021-10-19 14:58:00,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:58:00,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 798 transitions. [2021-10-19 14:58:00,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 57.0) internal successors, (798), 14 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:58:00,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:58:00,788 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:58:00,788 INFO L186 Difference]: Start difference. First operand has 759 places, 2525 transitions, 103592 flow. Second operand 14 states and 798 transitions. [2021-10-19 14:58:00,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 772 places, 2743 transitions, 113936 flow [2021-10-19 14:58:19,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 764 places, 2743 transitions, 112754 flow, removed 127 selfloop flow, removed 8 redundant places. [2021-10-19 14:58:19,118 INFO L242 Difference]: Finished difference. Result has 771 places, 2578 transitions, 108459 flow [2021-10-19 14:58:19,119 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=102410, PETRI_DIFFERENCE_MINUEND_PLACES=751, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1075, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=108459, PETRI_PLACES=771, PETRI_TRANSITIONS=2578} [2021-10-19 14:58:19,119 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 681 predicate places. [2021-10-19 14:58:19,119 INFO L470 AbstractCegarLoop]: Abstraction has has 771 places, 2578 transitions, 108459 flow [2021-10-19 14:58:19,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:58:19,120 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:58:19,120 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:58:19,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-10-19 14:58:19,120 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:58:19,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:58:19,120 INFO L82 PathProgramCache]: Analyzing trace with hash -614704789, now seen corresponding path program 16 times [2021-10-19 14:58:19,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:58:19,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130635784] [2021-10-19 14:58:19,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:58:19,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:58:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:58:19,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:58:19,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:58:19,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130635784] [2021-10-19 14:58:19,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130635784] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:58:19,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:58:19,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:58:19,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003198526] [2021-10-19 14:58:19,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:58:19,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:58:19,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:58:19,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:58:19,307 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:58:19,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 771 places, 2578 transitions, 108459 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:58:19,308 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:58:19,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:58:19,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:58:35,341 INFO L129 PetriNetUnfolder]: 7008/17606 cut-off events. [2021-10-19 14:58:35,342 INFO L130 PetriNetUnfolder]: For 1453646/1453938 co-relation queries the response was YES. [2021-10-19 14:58:35,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209513 conditions, 17606 events. 7008/17606 cut-off events. For 1453646/1453938 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 181956 event pairs, 696 based on Foata normal form. 109/17395 useless extension candidates. Maximal degree in co-relation 209168. Up to 9857 conditions per place. [2021-10-19 14:58:35,864 INFO L132 encePairwiseOnDemand]: 77/94 looper letters, 2116 selfloop transitions, 646 changer transitions 2/2876 dead transitions. [2021-10-19 14:58:35,864 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 783 places, 2876 transitions, 120449 flow [2021-10-19 14:58:35,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-19 14:58:35,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-19 14:58:35,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 794 transitions. [2021-10-19 14:58:35,865 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6497545008183306 [2021-10-19 14:58:35,865 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 794 transitions. [2021-10-19 14:58:35,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 794 transitions. [2021-10-19 14:58:35,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:58:35,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 794 transitions. [2021-10-19 14:58:35,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 61.07692307692308) internal successors, (794), 13 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:58:35,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:58:35,867 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:58:35,867 INFO L186 Difference]: Start difference. First operand has 771 places, 2578 transitions, 108459 flow. Second operand 13 states and 794 transitions. [2021-10-19 14:58:35,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 783 places, 2876 transitions, 120449 flow [2021-10-19 14:58:53,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 778 places, 2876 transitions, 119190 flow, removed 251 selfloop flow, removed 5 redundant places. [2021-10-19 14:58:53,876 INFO L242 Difference]: Finished difference. Result has 784 places, 2609 transitions, 111643 flow [2021-10-19 14:58:53,876 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=107218, PETRI_DIFFERENCE_MINUEND_PLACES=766, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2578, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=616, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1946, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=111643, PETRI_PLACES=784, PETRI_TRANSITIONS=2609} [2021-10-19 14:58:53,876 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 694 predicate places. [2021-10-19 14:58:53,877 INFO L470 AbstractCegarLoop]: Abstraction has has 784 places, 2609 transitions, 111643 flow [2021-10-19 14:58:53,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:58:53,877 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:58:53,877 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:58:53,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-10-19 14:58:53,877 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:58:53,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:58:53,877 INFO L82 PathProgramCache]: Analyzing trace with hash -438634465, now seen corresponding path program 18 times [2021-10-19 14:58:53,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:58:53,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933834422] [2021-10-19 14:58:53,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:58:53,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:58:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:58:54,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:58:54,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:58:54,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933834422] [2021-10-19 14:58:54,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933834422] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:58:54,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:58:54,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:58:54,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303749301] [2021-10-19 14:58:54,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:58:54,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:58:54,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:58:54,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:58:54,037 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2021-10-19 14:58:54,037 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 784 places, 2609 transitions, 111643 flow. Second operand has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:58:54,037 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:58:54,037 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2021-10-19 14:58:54,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:59:13,518 INFO L129 PetriNetUnfolder]: 8117/19431 cut-off events. [2021-10-19 14:59:13,518 INFO L130 PetriNetUnfolder]: For 1641923/1642114 co-relation queries the response was YES. [2021-10-19 14:59:13,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230560 conditions, 19431 events. 8117/19431 cut-off events. For 1641923/1642114 co-relation queries the response was YES. Maximal size of possible extension queue 782. Compared 196269 event pairs, 2205 based on Foata normal form. 123/19144 useless extension candidates. Maximal degree in co-relation 230209. Up to 13245 conditions per place. [2021-10-19 14:59:14,032 INFO L132 encePairwiseOnDemand]: 69/94 looper letters, 1545 selfloop transitions, 1227 changer transitions 6/2831 dead transitions. [2021-10-19 14:59:14,032 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 797 places, 2831 transitions, 122266 flow [2021-10-19 14:59:14,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-19 14:59:14,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-19 14:59:14,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 815 transitions. [2021-10-19 14:59:14,033 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6193009118541033 [2021-10-19 14:59:14,033 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 815 transitions. [2021-10-19 14:59:14,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 815 transitions. [2021-10-19 14:59:14,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:59:14,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 815 transitions. [2021-10-19 14:59:14,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 58.214285714285715) internal successors, (815), 14 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:59:14,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:59:14,035 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:59:14,035 INFO L186 Difference]: Start difference. First operand has 784 places, 2609 transitions, 111643 flow. Second operand 14 states and 815 transitions. [2021-10-19 14:59:14,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 797 places, 2831 transitions, 122266 flow [2021-10-19 14:59:34,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 790 places, 2831 transitions, 121763 flow, removed 17 selfloop flow, removed 7 redundant places. [2021-10-19 14:59:34,200 INFO L242 Difference]: Finished difference. Result has 795 places, 2643 transitions, 116885 flow [2021-10-19 14:59:34,201 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=111140, PETRI_DIFFERENCE_MINUEND_PLACES=777, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1194, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1386, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=116885, PETRI_PLACES=795, PETRI_TRANSITIONS=2643} [2021-10-19 14:59:34,201 INFO L334 CegarLoopForPetriNet]: 90 programPoint places, 705 predicate places. [2021-10-19 14:59:34,201 INFO L470 AbstractCegarLoop]: Abstraction has has 795 places, 2643 transitions, 116885 flow [2021-10-19 14:59:34,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 44.30769230769231) internal successors, (576), 13 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:59:34,201 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:59:34,201 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:59:34,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-10-19 14:59:34,201 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-10-19 14:59:34,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:59:34,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1202746175, now seen corresponding path program 17 times [2021-10-19 14:59:34,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:59:34,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103692010] [2021-10-19 14:59:34,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:59:34,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:59:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:59:34,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:59:34,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:59:34,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103692010] [2021-10-19 14:59:34,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103692010] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:59:34,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:59:34,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-19 14:59:34,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049516866] [2021-10-19 14:59:34,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-19 14:59:34,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:59:34,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-19 14:59:34,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-19 14:59:34,392 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2021-10-19 14:59:34,392 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 795 places, 2643 transitions, 116885 flow. Second operand has 13 states, 13 states have (on average 46.23076923076923) internal successors, (601), 13 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:59:34,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:59:34,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2021-10-19 14:59:34,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand