/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/weaver/bench-exp2x4.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-5b77e9fc37942d960732eb3788a90132329d3bc4-5b77e9f [2021-10-19 14:38:28,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-19 14:38:28,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-19 14:38:28,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-19 14:38:28,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-19 14:38:28,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-19 14:38:28,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-19 14:38:28,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-19 14:38:28,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-19 14:38:28,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-19 14:38:28,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-19 14:38:28,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-19 14:38:28,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-19 14:38:28,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-19 14:38:28,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-19 14:38:28,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-19 14:38:28,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-19 14:38:28,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-19 14:38:28,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-19 14:38:28,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-19 14:38:28,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-19 14:38:28,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-19 14:38:28,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-19 14:38:28,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-19 14:38:28,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-19 14:38:28,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-19 14:38:28,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-19 14:38:28,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-19 14:38:28,927 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 14:38:28,948 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-19 14:38:28,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-19 14:38:28,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-19 14:38:28,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-19 14:38:28,949 INFO L138 SettingsManager]: * Use SBE=true [2021-10-19 14:38:28,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-19 14:38:28,950 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-19 14:38:28,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-19 14:38:28,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-19 14:38:28,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-19 14:38:28,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-19 14:38:28,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-19 14:38:28,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-19 14:38:28,951 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-19 14:38:28,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-19 14:38:28,951 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-19 14:38:28,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-19 14:38:28,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-19 14:38:28,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-19 14:38:28,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-19 14:38:28,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-19 14:38:28,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-19 14:38:28,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-19 14:38:28,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-19 14:38:28,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-19 14:38:28,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-19 14:38:28,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-19 14:38:28,952 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-19 14:38:28,953 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-19 14:38:28,953 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-19 14:38:29,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-19 14:38:29,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-19 14:38:29,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-19 14:38:29,154 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-19 14:38:29,155 INFO L275 PluginConnector]: CDTParser initialized [2021-10-19 14:38:29,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2021-10-19 14:38:29,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a3afe5e0/8acc8980d943404db256d60196c47eee/FLAG0de03f48a [2021-10-19 14:38:29,564 INFO L306 CDTParser]: Found 1 translation units. [2021-10-19 14:38:29,565 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c [2021-10-19 14:38:29,570 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a3afe5e0/8acc8980d943404db256d60196c47eee/FLAG0de03f48a [2021-10-19 14:38:29,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a3afe5e0/8acc8980d943404db256d60196c47eee [2021-10-19 14:38:29,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-19 14:38:29,984 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-19 14:38:29,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-19 14:38:29,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-19 14:38:29,994 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-19 14:38:29,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 02:38:29" (1/1) ... [2021-10-19 14:38:29,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33410a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:38:29, skipping insertion in model container [2021-10-19 14:38:29,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 02:38:29" (1/1) ... [2021-10-19 14:38:30,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-19 14:38:30,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-19 14:38:30,175 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c[2309,2322] [2021-10-19 14:38:30,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-19 14:38:30,184 INFO L203 MainTranslator]: Completed pre-run [2021-10-19 14:38:30,205 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x4.wvr.c[2309,2322] [2021-10-19 14:38:30,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-19 14:38:30,217 INFO L208 MainTranslator]: Completed translation [2021-10-19 14:38:30,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:38:30 WrapperNode [2021-10-19 14:38:30,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-19 14:38:30,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-19 14:38:30,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-19 14:38:30,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-19 14:38:30,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:38:30" (1/1) ... [2021-10-19 14:38:30,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:38:30" (1/1) ... [2021-10-19 14:38:30,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-19 14:38:30,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-19 14:38:30,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-19 14:38:30,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-19 14:38:30,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:38:30" (1/1) ... [2021-10-19 14:38:30,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:38:30" (1/1) ... [2021-10-19 14:38:30,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:38:30" (1/1) ... [2021-10-19 14:38:30,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:38:30" (1/1) ... [2021-10-19 14:38:30,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:38:30" (1/1) ... [2021-10-19 14:38:30,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:38:30" (1/1) ... [2021-10-19 14:38:30,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:38:30" (1/1) ... [2021-10-19 14:38:30,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-19 14:38:30,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-19 14:38:30,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-19 14:38:30,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-19 14:38:30,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:38:30" (1/1) ... [2021-10-19 14:38:30,364 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-19 14:38:30,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-19 14:38:30,389 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 14:38:30,410 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 14:38:30,433 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-19 14:38:30,433 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-19 14:38:30,434 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-19 14:38:30,435 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-19 14:38:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-19 14:38:30,435 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-19 14:38:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-19 14:38:30,435 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-19 14:38:30,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-19 14:38:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-19 14:38:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-19 14:38:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-19 14:38:30,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-19 14:38:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-19 14:38:30,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-19 14:38:30,438 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 14:38:30,912 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-19 14:38:30,912 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-19 14:38:30,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 02:38:30 BoogieIcfgContainer [2021-10-19 14:38:30,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-19 14:38:30,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-19 14:38:30,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-19 14:38:30,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-19 14:38:30,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 02:38:29" (1/3) ... [2021-10-19 14:38:30,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6ec9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 02:38:30, skipping insertion in model container [2021-10-19 14:38:30,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:38:30" (2/3) ... [2021-10-19 14:38:30,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6ec9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 02:38:30, skipping insertion in model container [2021-10-19 14:38:30,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 02:38:30" (3/3) ... [2021-10-19 14:38:30,922 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp2x4.wvr.c [2021-10-19 14:38:30,926 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-19 14:38:30,927 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 51 error locations. [2021-10-19 14:38:30,927 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-19 14:38:30,987 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,987 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,987 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,987 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,988 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,988 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,988 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,989 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,989 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,989 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,989 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,989 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,989 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,990 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,990 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,990 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,990 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,990 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,990 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,991 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,991 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,991 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,991 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,991 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,992 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,992 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,992 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,992 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,993 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,993 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,993 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,993 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,993 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,993 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,994 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,994 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,994 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,994 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,994 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,995 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,995 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,995 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,995 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,995 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,995 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,995 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,996 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,996 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,996 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,997 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,997 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,997 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,997 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,997 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,997 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,997 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,998 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,998 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,998 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,998 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,998 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,998 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,998 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,999 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,999 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,999 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,999 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,999 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:30,999 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,000 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,000 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,000 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,000 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,001 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,001 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,001 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,001 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,002 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,002 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,002 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,002 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,002 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,002 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,002 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,003 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,003 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,003 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,003 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,004 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,004 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,004 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,004 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,004 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,004 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,004 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,005 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,007 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,008 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,008 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,008 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,012 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,012 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,012 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,012 WARN L313 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,014 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,014 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,014 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,014 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,016 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,016 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,016 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,016 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:38:31,025 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-10-19 14:38:31,085 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-19 14:38:31,090 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 14:38:31,090 INFO L340 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2021-10-19 14:38:31,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 330 places, 331 transitions, 694 flow [2021-10-19 14:38:31,210 INFO L129 PetriNetUnfolder]: 14/327 cut-off events. [2021-10-19 14:38:31,210 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-19 14:38:31,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 327 events. 14/327 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 657 event pairs, 0 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 224. Up to 2 conditions per place. [2021-10-19 14:38:31,220 INFO L82 GeneralOperation]: Start removeDead. Operand has 330 places, 331 transitions, 694 flow [2021-10-19 14:38:31,233 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 306 places, 305 transitions, 634 flow [2021-10-19 14:38:31,272 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-10-19 14:38:31,272 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:38:31,272 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:31,273 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] [2021-10-19 14:38:31,273 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:31,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:31,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1697802631, now seen corresponding path program 1 times [2021-10-19 14:38:31,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:31,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707086614] [2021-10-19 14:38:31,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:31,286 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:31,491 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 14:38:31,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:31,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707086614] [2021-10-19 14:38:31,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707086614] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:31,492 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:31,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:31,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601677045] [2021-10-19 14:38:31,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:31,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:31,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:31,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:31,519 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 331 [2021-10-19 14:38:31,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 305 transitions, 634 flow. Second operand has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:31,526 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:31,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 331 [2021-10-19 14:38:31,527 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:31,666 INFO L129 PetriNetUnfolder]: 7/299 cut-off events. [2021-10-19 14:38:31,666 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-19 14:38:31,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 299 events. 7/299 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 650 event pairs, 0 based on Foata normal form. 39/281 useless extension candidates. Maximal degree in co-relation 251. Up to 34 conditions per place. [2021-10-19 14:38:31,675 INFO L132 encePairwiseOnDemand]: 323/331 looper letters, 33 selfloop transitions, 2 changer transitions 1/299 dead transitions. [2021-10-19 14:38:31,675 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 299 transitions, 692 flow [2021-10-19 14:38:31,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:31,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:31,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 905 transitions. [2021-10-19 14:38:31,694 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9113796576032226 [2021-10-19 14:38:31,694 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 905 transitions. [2021-10-19 14:38:31,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 905 transitions. [2021-10-19 14:38:31,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:31,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 905 transitions. [2021-10-19 14:38:31,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.6666666666667) internal successors, (905), 3 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:31,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:31,718 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:31,719 INFO L186 Difference]: Start difference. First operand has 306 places, 305 transitions, 634 flow. Second operand 3 states and 905 transitions. [2021-10-19 14:38:31,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 299 transitions, 692 flow [2021-10-19 14:38:31,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 299 transitions, 676 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-10-19 14:38:31,737 INFO L242 Difference]: Finished difference. Result has 299 places, 298 transitions, 608 flow [2021-10-19 14:38:31,739 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=608, PETRI_PLACES=299, PETRI_TRANSITIONS=298} [2021-10-19 14:38:31,740 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -7 predicate places. [2021-10-19 14:38:31,740 INFO L470 AbstractCegarLoop]: Abstraction has has 299 places, 298 transitions, 608 flow [2021-10-19 14:38:31,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:31,741 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:31,741 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] [2021-10-19 14:38:31,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-19 14:38:31,742 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:31,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:31,742 INFO L82 PathProgramCache]: Analyzing trace with hash 106861487, now seen corresponding path program 1 times [2021-10-19 14:38:31,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:31,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117876759] [2021-10-19 14:38:31,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:31,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:31,815 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 14:38:31,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:31,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117876759] [2021-10-19 14:38:31,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117876759] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:31,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:31,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:31,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230440534] [2021-10-19 14:38:31,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:31,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:31,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:31,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:31,820 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 331 [2021-10-19 14:38:31,821 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 298 transitions, 608 flow. Second operand has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:31,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:31,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 331 [2021-10-19 14:38:31,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:31,908 INFO L129 PetriNetUnfolder]: 7/297 cut-off events. [2021-10-19 14:38:31,908 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:38:31,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 338 conditions, 297 events. 7/297 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 646 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 308. Up to 31 conditions per place. [2021-10-19 14:38:31,914 INFO L132 encePairwiseOnDemand]: 328/331 looper letters, 30 selfloop transitions, 2 changer transitions 0/297 dead transitions. [2021-10-19 14:38:31,914 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 297 transitions, 670 flow [2021-10-19 14:38:31,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:31,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:31,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 906 transitions. [2021-10-19 14:38:31,918 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9123867069486404 [2021-10-19 14:38:31,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 906 transitions. [2021-10-19 14:38:31,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 906 transitions. [2021-10-19 14:38:31,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:31,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 906 transitions. [2021-10-19 14:38:31,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.0) internal successors, (906), 3 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 14:38:31,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:31,924 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:31,925 INFO L186 Difference]: Start difference. First operand has 299 places, 298 transitions, 608 flow. Second operand 3 states and 906 transitions. [2021-10-19 14:38:31,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 297 transitions, 670 flow [2021-10-19 14:38:31,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 297 transitions, 666 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:38:31,935 INFO L242 Difference]: Finished difference. Result has 297 places, 297 transitions, 606 flow [2021-10-19 14:38:31,936 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=297, PETRI_TRANSITIONS=297} [2021-10-19 14:38:31,937 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -9 predicate places. [2021-10-19 14:38:31,938 INFO L470 AbstractCegarLoop]: Abstraction has has 297 places, 297 transitions, 606 flow [2021-10-19 14:38:31,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:31,943 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:31,943 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] [2021-10-19 14:38:31,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-19 14:38:31,949 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:31,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:31,949 INFO L82 PathProgramCache]: Analyzing trace with hash -474401509, now seen corresponding path program 1 times [2021-10-19 14:38:31,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:31,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020773881] [2021-10-19 14:38:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:31,950 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:32,010 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 14:38:32,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:32,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020773881] [2021-10-19 14:38:32,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020773881] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:32,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:32,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:32,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387229379] [2021-10-19 14:38:32,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:32,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:32,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:32,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:32,018 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 331 [2021-10-19 14:38:32,019 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 297 transitions, 606 flow. Second operand has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:32,019 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:32,019 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 331 [2021-10-19 14:38:32,019 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:32,107 INFO L129 PetriNetUnfolder]: 7/296 cut-off events. [2021-10-19 14:38:32,107 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:38:32,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 296 events. 7/296 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 644 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 304. Up to 34 conditions per place. [2021-10-19 14:38:32,114 INFO L132 encePairwiseOnDemand]: 328/331 looper letters, 33 selfloop transitions, 2 changer transitions 0/296 dead transitions. [2021-10-19 14:38:32,114 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 296 transitions, 674 flow [2021-10-19 14:38:32,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:32,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:32,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 900 transitions. [2021-10-19 14:38:32,137 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9063444108761329 [2021-10-19 14:38:32,137 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 900 transitions. [2021-10-19 14:38:32,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 900 transitions. [2021-10-19 14:38:32,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:32,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 900 transitions. [2021-10-19 14:38:32,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 300.0) internal successors, (900), 3 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:32,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:32,143 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:32,143 INFO L186 Difference]: Start difference. First operand has 297 places, 297 transitions, 606 flow. Second operand 3 states and 900 transitions. [2021-10-19 14:38:32,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 296 transitions, 674 flow [2021-10-19 14:38:32,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 296 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:38:32,148 INFO L242 Difference]: Finished difference. Result has 296 places, 296 transitions, 604 flow [2021-10-19 14:38:32,149 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=604, PETRI_PLACES=296, PETRI_TRANSITIONS=296} [2021-10-19 14:38:32,149 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -10 predicate places. [2021-10-19 14:38:32,149 INFO L470 AbstractCegarLoop]: Abstraction has has 296 places, 296 transitions, 604 flow [2021-10-19 14:38:32,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:32,150 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:32,150 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 14:38:32,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-19 14:38:32,150 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:32,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:32,152 INFO L82 PathProgramCache]: Analyzing trace with hash 454734738, now seen corresponding path program 1 times [2021-10-19 14:38:32,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:32,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378957792] [2021-10-19 14:38:32,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:32,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:32,209 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 14:38:32,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:32,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378957792] [2021-10-19 14:38:32,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378957792] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:32,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:32,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:32,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104050174] [2021-10-19 14:38:32,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:32,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:32,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:32,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:32,218 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 331 [2021-10-19 14:38:32,219 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 296 transitions, 604 flow. Second operand has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:32,219 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:32,219 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 331 [2021-10-19 14:38:32,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:32,299 INFO L129 PetriNetUnfolder]: 7/295 cut-off events. [2021-10-19 14:38:32,299 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:38:32,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 295 events. 7/295 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 642 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 293. Up to 30 conditions per place. [2021-10-19 14:38:32,304 INFO L132 encePairwiseOnDemand]: 328/331 looper letters, 29 selfloop transitions, 2 changer transitions 0/295 dead transitions. [2021-10-19 14:38:32,304 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 295 transitions, 664 flow [2021-10-19 14:38:32,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:32,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:32,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 905 transitions. [2021-10-19 14:38:32,307 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9113796576032226 [2021-10-19 14:38:32,307 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 905 transitions. [2021-10-19 14:38:32,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 905 transitions. [2021-10-19 14:38:32,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:32,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 905 transitions. [2021-10-19 14:38:32,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.6666666666667) internal successors, (905), 3 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:32,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:32,312 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:32,312 INFO L186 Difference]: Start difference. First operand has 296 places, 296 transitions, 604 flow. Second operand 3 states and 905 transitions. [2021-10-19 14:38:32,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 295 transitions, 664 flow [2021-10-19 14:38:32,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 295 transitions, 660 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:38:32,318 INFO L242 Difference]: Finished difference. Result has 295 places, 295 transitions, 602 flow [2021-10-19 14:38:32,318 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=602, PETRI_PLACES=295, PETRI_TRANSITIONS=295} [2021-10-19 14:38:32,319 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -11 predicate places. [2021-10-19 14:38:32,319 INFO L470 AbstractCegarLoop]: Abstraction has has 295 places, 295 transitions, 602 flow [2021-10-19 14:38:32,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:32,320 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:32,320 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 14:38:32,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-19 14:38:32,320 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:32,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:32,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1772389887, now seen corresponding path program 1 times [2021-10-19 14:38:32,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:32,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088989942] [2021-10-19 14:38:32,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:32,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:32,383 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 14:38:32,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:32,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088989942] [2021-10-19 14:38:32,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088989942] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:32,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:32,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:32,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683527171] [2021-10-19 14:38:32,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:32,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:32,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:32,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:32,386 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 331 [2021-10-19 14:38:32,389 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 295 transitions, 602 flow. Second operand has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:32,389 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:32,390 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 331 [2021-10-19 14:38:32,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:33,077 INFO L129 PetriNetUnfolder]: 628/4452 cut-off events. [2021-10-19 14:38:33,079 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:38:33,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5315 conditions, 4452 events. 628/4452 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 48720 event pairs, 513 based on Foata normal form. 0/3249 useless extension candidates. Maximal degree in co-relation 5267. Up to 853 conditions per place. [2021-10-19 14:38:33,171 INFO L132 encePairwiseOnDemand]: 328/331 looper letters, 15 selfloop transitions, 2 changer transitions 0/294 dead transitions. [2021-10-19 14:38:33,172 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 294 transitions, 634 flow [2021-10-19 14:38:33,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:33,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:33,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 936 transitions. [2021-10-19 14:38:33,174 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9425981873111783 [2021-10-19 14:38:33,175 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 936 transitions. [2021-10-19 14:38:33,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 936 transitions. [2021-10-19 14:38:33,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:33,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 936 transitions. [2021-10-19 14:38:33,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,181 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,181 INFO L186 Difference]: Start difference. First operand has 295 places, 295 transitions, 602 flow. Second operand 3 states and 936 transitions. [2021-10-19 14:38:33,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 294 transitions, 634 flow [2021-10-19 14:38:33,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 294 transitions, 630 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:38:33,186 INFO L242 Difference]: Finished difference. Result has 294 places, 294 transitions, 600 flow [2021-10-19 14:38:33,187 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=600, PETRI_PLACES=294, PETRI_TRANSITIONS=294} [2021-10-19 14:38:33,187 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -12 predicate places. [2021-10-19 14:38:33,187 INFO L470 AbstractCegarLoop]: Abstraction has has 294 places, 294 transitions, 600 flow [2021-10-19 14:38:33,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 307.3333333333333) internal successors, (922), 3 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,188 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:33,188 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] [2021-10-19 14:38:33,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-19 14:38:33,189 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:33,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:33,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1495680658, now seen corresponding path program 1 times [2021-10-19 14:38:33,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:33,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425607821] [2021-10-19 14:38:33,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:33,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:33,217 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 14:38:33,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:33,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425607821] [2021-10-19 14:38:33,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425607821] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:33,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:33,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:33,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748138095] [2021-10-19 14:38:33,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:33,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:33,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:33,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:33,221 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 331 [2021-10-19 14:38:33,222 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 294 transitions, 600 flow. Second operand has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:33,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 331 [2021-10-19 14:38:33,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:33,309 INFO L129 PetriNetUnfolder]: 7/287 cut-off events. [2021-10-19 14:38:33,309 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:38:33,312 INFO L84 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 287 events. 7/287 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 617 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 266. Up to 17 conditions per place. [2021-10-19 14:38:33,314 INFO L132 encePairwiseOnDemand]: 318/331 looper letters, 20 selfloop transitions, 5 changer transitions 0/287 dead transitions. [2021-10-19 14:38:33,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 287 transitions, 636 flow [2021-10-19 14:38:33,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:33,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:33,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 906 transitions. [2021-10-19 14:38:33,316 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9123867069486404 [2021-10-19 14:38:33,317 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 906 transitions. [2021-10-19 14:38:33,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 906 transitions. [2021-10-19 14:38:33,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:33,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 906 transitions. [2021-10-19 14:38:33,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.0) internal successors, (906), 3 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 14:38:33,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,322 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,322 INFO L186 Difference]: Start difference. First operand has 294 places, 294 transitions, 600 flow. Second operand 3 states and 906 transitions. [2021-10-19 14:38:33,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 287 transitions, 636 flow [2021-10-19 14:38:33,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 287 transitions, 632 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:38:33,329 INFO L242 Difference]: Finished difference. Result has 287 places, 287 transitions, 599 flow [2021-10-19 14:38:33,329 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=599, PETRI_PLACES=287, PETRI_TRANSITIONS=287} [2021-10-19 14:38:33,330 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -19 predicate places. [2021-10-19 14:38:33,330 INFO L470 AbstractCegarLoop]: Abstraction has has 287 places, 287 transitions, 599 flow [2021-10-19 14:38:33,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,331 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:33,332 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] [2021-10-19 14:38:33,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-19 14:38:33,332 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:33,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:33,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1464917591, now seen corresponding path program 1 times [2021-10-19 14:38:33,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:33,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099085544] [2021-10-19 14:38:33,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:33,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:33,384 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 14:38:33,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:33,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099085544] [2021-10-19 14:38:33,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099085544] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:33,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:33,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:33,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485333382] [2021-10-19 14:38:33,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:33,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:33,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:33,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:33,389 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 331 [2021-10-19 14:38:33,390 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 287 transitions, 599 flow. Second operand has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,390 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:33,390 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 331 [2021-10-19 14:38:33,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:33,449 INFO L129 PetriNetUnfolder]: 7/281 cut-off events. [2021-10-19 14:38:33,449 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-19 14:38:33,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 281 events. 7/281 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 575 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 243. Up to 15 conditions per place. [2021-10-19 14:38:33,453 INFO L132 encePairwiseOnDemand]: 319/331 looper letters, 18 selfloop transitions, 5 changer transitions 0/281 dead transitions. [2021-10-19 14:38:33,453 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 281 transitions, 633 flow [2021-10-19 14:38:33,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:33,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:33,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 912 transitions. [2021-10-19 14:38:33,456 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.918429003021148 [2021-10-19 14:38:33,456 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 912 transitions. [2021-10-19 14:38:33,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 912 transitions. [2021-10-19 14:38:33,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:33,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 912 transitions. [2021-10-19 14:38:33,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,463 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,463 INFO L186 Difference]: Start difference. First operand has 287 places, 287 transitions, 599 flow. Second operand 3 states and 912 transitions. [2021-10-19 14:38:33,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 281 transitions, 633 flow [2021-10-19 14:38:33,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 281 transitions, 628 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:38:33,469 INFO L242 Difference]: Finished difference. Result has 282 places, 281 transitions, 599 flow [2021-10-19 14:38:33,469 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=599, PETRI_PLACES=282, PETRI_TRANSITIONS=281} [2021-10-19 14:38:33,470 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -24 predicate places. [2021-10-19 14:38:33,470 INFO L470 AbstractCegarLoop]: Abstraction has has 282 places, 281 transitions, 599 flow [2021-10-19 14:38:33,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,470 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:33,470 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, 1, 1] [2021-10-19 14:38:33,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-19 14:38:33,472 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:33,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:33,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1042991328, now seen corresponding path program 1 times [2021-10-19 14:38:33,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:33,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082829009] [2021-10-19 14:38:33,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:33,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:33,509 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 14:38:33,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:33,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082829009] [2021-10-19 14:38:33,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082829009] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:33,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:33,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:33,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32102264] [2021-10-19 14:38:33,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:33,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:33,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:33,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:33,513 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 331 [2021-10-19 14:38:33,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 281 transitions, 599 flow. Second operand has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:33,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 331 [2021-10-19 14:38:33,514 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:33,595 INFO L129 PetriNetUnfolder]: 11/428 cut-off events. [2021-10-19 14:38:33,595 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-19 14:38:33,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 428 events. 11/428 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1489 event pairs, 0 based on Foata normal form. 0/378 useless extension candidates. Maximal degree in co-relation 391. Up to 18 conditions per place. [2021-10-19 14:38:33,602 INFO L132 encePairwiseOnDemand]: 317/331 looper letters, 20 selfloop transitions, 6 changer transitions 0/275 dead transitions. [2021-10-19 14:38:33,602 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 275 transitions, 639 flow [2021-10-19 14:38:33,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:33,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:33,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 907 transitions. [2021-10-19 14:38:33,605 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9133937562940584 [2021-10-19 14:38:33,605 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 907 transitions. [2021-10-19 14:38:33,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 907 transitions. [2021-10-19 14:38:33,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:33,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 907 transitions. [2021-10-19 14:38:33,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,609 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,609 INFO L186 Difference]: Start difference. First operand has 282 places, 281 transitions, 599 flow. Second operand 3 states and 907 transitions. [2021-10-19 14:38:33,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 275 transitions, 639 flow [2021-10-19 14:38:33,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 275 transitions, 634 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:38:33,615 INFO L242 Difference]: Finished difference. Result has 276 places, 275 transitions, 604 flow [2021-10-19 14:38:33,616 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=604, PETRI_PLACES=276, PETRI_TRANSITIONS=275} [2021-10-19 14:38:33,616 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -30 predicate places. [2021-10-19 14:38:33,616 INFO L470 AbstractCegarLoop]: Abstraction has has 276 places, 275 transitions, 604 flow [2021-10-19 14:38:33,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,617 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:33,617 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, 1, 1, 1, 1] [2021-10-19 14:38:33,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-19 14:38:33,617 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:33,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:33,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1587309277, now seen corresponding path program 1 times [2021-10-19 14:38:33,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:33,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119341579] [2021-10-19 14:38:33,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:33,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:33,668 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 14:38:33,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:33,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119341579] [2021-10-19 14:38:33,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119341579] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:33,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:33,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:33,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090070800] [2021-10-19 14:38:33,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:33,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:33,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:33,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:33,671 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 331 [2021-10-19 14:38:33,672 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 275 transitions, 604 flow. Second operand has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,672 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:33,672 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 331 [2021-10-19 14:38:33,672 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:33,787 INFO L129 PetriNetUnfolder]: 14/574 cut-off events. [2021-10-19 14:38:33,787 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-19 14:38:33,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 574 events. 14/574 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2578 event pairs, 0 based on Foata normal form. 1/520 useless extension candidates. Maximal degree in co-relation 458. Up to 24 conditions per place. [2021-10-19 14:38:33,796 INFO L132 encePairwiseOnDemand]: 319/331 looper letters, 16 selfloop transitions, 5 changer transitions 11/269 dead transitions. [2021-10-19 14:38:33,796 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 269 transitions, 636 flow [2021-10-19 14:38:33,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:33,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:33,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 911 transitions. [2021-10-19 14:38:33,798 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9174219536757301 [2021-10-19 14:38:33,798 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 911 transitions. [2021-10-19 14:38:33,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 911 transitions. [2021-10-19 14:38:33,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:33,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 911 transitions. [2021-10-19 14:38:33,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,803 INFO L186 Difference]: Start difference. First operand has 276 places, 275 transitions, 604 flow. Second operand 3 states and 911 transitions. [2021-10-19 14:38:33,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 269 transitions, 636 flow [2021-10-19 14:38:33,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 269 transitions, 630 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:38:33,809 INFO L242 Difference]: Finished difference. Result has 271 places, 258 transitions, 580 flow [2021-10-19 14:38:33,809 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=580, PETRI_PLACES=271, PETRI_TRANSITIONS=258} [2021-10-19 14:38:33,810 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -35 predicate places. [2021-10-19 14:38:33,810 INFO L470 AbstractCegarLoop]: Abstraction has has 271 places, 258 transitions, 580 flow [2021-10-19 14:38:33,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,810 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:33,810 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:38:33,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-19 14:38:33,811 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:33,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:33,811 INFO L82 PathProgramCache]: Analyzing trace with hash 840606750, now seen corresponding path program 1 times [2021-10-19 14:38:33,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:33,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727429580] [2021-10-19 14:38:33,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:33,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:33,848 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 14:38:33,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:33,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727429580] [2021-10-19 14:38:33,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727429580] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:33,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:33,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:33,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584549059] [2021-10-19 14:38:33,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:33,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:33,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:33,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:33,853 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 331 [2021-10-19 14:38:33,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 258 transitions, 580 flow. Second operand has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:33,855 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:33,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 331 [2021-10-19 14:38:33,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:34,320 INFO L129 PetriNetUnfolder]: 349/3288 cut-off events. [2021-10-19 14:38:34,321 INFO L130 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2021-10-19 14:38:34,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4236 conditions, 3288 events. 349/3288 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 33472 event pairs, 136 based on Foata normal form. 0/2874 useless extension candidates. Maximal degree in co-relation 2392. Up to 468 conditions per place. [2021-10-19 14:38:34,389 INFO L132 encePairwiseOnDemand]: 323/331 looper letters, 10 selfloop transitions, 4 changer transitions 0/258 dead transitions. [2021-10-19 14:38:34,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 258 transitions, 608 flow [2021-10-19 14:38:34,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:34,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:34,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 945 transitions. [2021-10-19 14:38:34,393 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9516616314199395 [2021-10-19 14:38:34,393 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 945 transitions. [2021-10-19 14:38:34,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 945 transitions. [2021-10-19 14:38:34,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:34,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 945 transitions. [2021-10-19 14:38:34,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:34,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:34,399 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:34,399 INFO L186 Difference]: Start difference. First operand has 271 places, 258 transitions, 580 flow. Second operand 3 states and 945 transitions. [2021-10-19 14:38:34,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 258 transitions, 608 flow [2021-10-19 14:38:34,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 258 transitions, 603 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:38:34,410 INFO L242 Difference]: Finished difference. Result has 258 places, 258 transitions, 595 flow [2021-10-19 14:38:34,411 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=567, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=595, PETRI_PLACES=258, PETRI_TRANSITIONS=258} [2021-10-19 14:38:34,411 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -48 predicate places. [2021-10-19 14:38:34,411 INFO L470 AbstractCegarLoop]: Abstraction has has 258 places, 258 transitions, 595 flow [2021-10-19 14:38:34,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:34,412 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:34,412 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, 1, 1, 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 14:38:34,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-19 14:38:34,412 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:34,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:34,413 INFO L82 PathProgramCache]: Analyzing trace with hash -2034056071, now seen corresponding path program 1 times [2021-10-19 14:38:34,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:34,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127595277] [2021-10-19 14:38:34,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:34,415 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:34,470 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 14:38:34,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:34,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127595277] [2021-10-19 14:38:34,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127595277] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:34,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:34,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:34,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122452084] [2021-10-19 14:38:34,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:34,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:34,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:34,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:34,474 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 331 [2021-10-19 14:38:34,475 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 258 transitions, 595 flow. Second operand has 3 states, 3 states have (on average 292.6666666666667) internal successors, (878), 3 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:34,475 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:34,475 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 331 [2021-10-19 14:38:34,475 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:34,648 INFO L129 PetriNetUnfolder]: 87/1211 cut-off events. [2021-10-19 14:38:34,648 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-10-19 14:38:34,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1544 conditions, 1211 events. 87/1211 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8403 event pairs, 8 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 748. Up to 108 conditions per place. [2021-10-19 14:38:34,668 INFO L132 encePairwiseOnDemand]: 328/331 looper letters, 23 selfloop transitions, 2 changer transitions 0/257 dead transitions. [2021-10-19 14:38:34,669 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 257 transitions, 643 flow [2021-10-19 14:38:34,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:34,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:34,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 889 transitions. [2021-10-19 14:38:34,672 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8952668680765358 [2021-10-19 14:38:34,672 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 889 transitions. [2021-10-19 14:38:34,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 889 transitions. [2021-10-19 14:38:34,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:34,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 889 transitions. [2021-10-19 14:38:34,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 296.3333333333333) internal successors, (889), 3 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:34,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:34,677 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:34,677 INFO L186 Difference]: Start difference. First operand has 258 places, 258 transitions, 595 flow. Second operand 3 states and 889 transitions. [2021-10-19 14:38:34,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 257 transitions, 643 flow [2021-10-19 14:38:34,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 257 transitions, 643 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-19 14:38:34,684 INFO L242 Difference]: Finished difference. Result has 259 places, 257 transitions, 597 flow [2021-10-19 14:38:34,684 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=597, PETRI_PLACES=259, PETRI_TRANSITIONS=257} [2021-10-19 14:38:34,684 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -47 predicate places. [2021-10-19 14:38:34,685 INFO L470 AbstractCegarLoop]: Abstraction has has 259 places, 257 transitions, 597 flow [2021-10-19 14:38:34,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.6666666666667) internal successors, (878), 3 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:34,685 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:34,685 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:34,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-19 14:38:34,686 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:34,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:34,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1336107271, now seen corresponding path program 1 times [2021-10-19 14:38:34,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:34,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468310131] [2021-10-19 14:38:34,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:34,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:34,726 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 14:38:34,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:34,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468310131] [2021-10-19 14:38:34,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468310131] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:34,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:34,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:34,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781270377] [2021-10-19 14:38:34,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:34,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:34,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:34,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:34,730 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 331 [2021-10-19 14:38:34,731 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 257 transitions, 597 flow. Second operand has 3 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:34,731 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:34,731 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 331 [2021-10-19 14:38:34,731 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:34,926 INFO L129 PetriNetUnfolder]: 87/1197 cut-off events. [2021-10-19 14:38:34,927 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-10-19 14:38:34,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1722 conditions, 1197 events. 87/1197 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8220 event pairs, 8 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 1619. Up to 224 conditions per place. [2021-10-19 14:38:34,950 INFO L132 encePairwiseOnDemand]: 328/331 looper letters, 21 selfloop transitions, 2 changer transitions 0/256 dead transitions. [2021-10-19 14:38:34,950 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 256 transitions, 641 flow [2021-10-19 14:38:34,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:34,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:34,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 896 transitions. [2021-10-19 14:38:34,953 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9023162134944612 [2021-10-19 14:38:34,953 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 896 transitions. [2021-10-19 14:38:34,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 896 transitions. [2021-10-19 14:38:34,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:34,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 896 transitions. [2021-10-19 14:38:34,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.6666666666667) internal successors, (896), 3 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 14:38:34,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:34,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:34,959 INFO L186 Difference]: Start difference. First operand has 259 places, 257 transitions, 597 flow. Second operand 3 states and 896 transitions. [2021-10-19 14:38:34,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 256 transitions, 641 flow [2021-10-19 14:38:34,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 256 transitions, 637 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:38:34,965 INFO L242 Difference]: Finished difference. Result has 258 places, 256 transitions, 595 flow [2021-10-19 14:38:34,966 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=595, PETRI_PLACES=258, PETRI_TRANSITIONS=256} [2021-10-19 14:38:34,966 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -48 predicate places. [2021-10-19 14:38:34,966 INFO L470 AbstractCegarLoop]: Abstraction has has 258 places, 256 transitions, 595 flow [2021-10-19 14:38:34,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:34,967 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:34,967 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:34,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-19 14:38:34,967 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:34,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:34,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1427166346, now seen corresponding path program 1 times [2021-10-19 14:38:34,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:34,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723386817] [2021-10-19 14:38:34,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:34,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:34,990 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 14:38:34,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:34,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723386817] [2021-10-19 14:38:34,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723386817] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:34,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:34,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:34,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169119072] [2021-10-19 14:38:34,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:34,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:34,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:34,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:34,993 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 331 [2021-10-19 14:38:34,995 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 256 transitions, 595 flow. Second operand has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:34,995 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:34,995 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 331 [2021-10-19 14:38:34,995 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:35,197 INFO L129 PetriNetUnfolder]: 87/1194 cut-off events. [2021-10-19 14:38:35,197 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-10-19 14:38:35,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1553 conditions, 1194 events. 87/1194 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8184 event pairs, 8 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 1219. Up to 108 conditions per place. [2021-10-19 14:38:35,216 INFO L132 encePairwiseOnDemand]: 328/331 looper letters, 22 selfloop transitions, 2 changer transitions 0/255 dead transitions. [2021-10-19 14:38:35,216 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 255 transitions, 641 flow [2021-10-19 14:38:35,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:35,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:35,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 888 transitions. [2021-10-19 14:38:35,219 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8942598187311178 [2021-10-19 14:38:35,219 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 888 transitions. [2021-10-19 14:38:35,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 888 transitions. [2021-10-19 14:38:35,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:35,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 888 transitions. [2021-10-19 14:38:35,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:35,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:35,224 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:35,224 INFO L186 Difference]: Start difference. First operand has 258 places, 256 transitions, 595 flow. Second operand 3 states and 888 transitions. [2021-10-19 14:38:35,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 255 transitions, 641 flow [2021-10-19 14:38:35,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 255 transitions, 637 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:38:35,229 INFO L242 Difference]: Finished difference. Result has 257 places, 255 transitions, 593 flow [2021-10-19 14:38:35,230 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=593, PETRI_PLACES=257, PETRI_TRANSITIONS=255} [2021-10-19 14:38:35,230 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -49 predicate places. [2021-10-19 14:38:35,230 INFO L470 AbstractCegarLoop]: Abstraction has has 257 places, 255 transitions, 593 flow [2021-10-19 14:38:35,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:35,231 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:35,231 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:35,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-19 14:38:35,231 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:35,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:35,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1546598235, now seen corresponding path program 1 times [2021-10-19 14:38:35,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:35,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880627413] [2021-10-19 14:38:35,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:35,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:35,259 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 14:38:35,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:35,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880627413] [2021-10-19 14:38:35,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880627413] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:35,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:35,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:35,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511005521] [2021-10-19 14:38:35,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:35,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:35,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:35,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:35,262 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 331 [2021-10-19 14:38:35,263 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 255 transitions, 593 flow. Second operand has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:35,263 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:35,263 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 331 [2021-10-19 14:38:35,263 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:35,472 INFO L129 PetriNetUnfolder]: 87/1186 cut-off events. [2021-10-19 14:38:35,472 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-10-19 14:38:35,487 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1604 conditions, 1186 events. 87/1186 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 8102 event pairs, 8 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 1537. Up to 129 conditions per place. [2021-10-19 14:38:35,493 INFO L132 encePairwiseOnDemand]: 328/331 looper letters, 24 selfloop transitions, 2 changer transitions 0/254 dead transitions. [2021-10-19 14:38:35,493 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 254 transitions, 643 flow [2021-10-19 14:38:35,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:35,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:35,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 889 transitions. [2021-10-19 14:38:35,496 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8952668680765358 [2021-10-19 14:38:35,496 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 889 transitions. [2021-10-19 14:38:35,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 889 transitions. [2021-10-19 14:38:35,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:35,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 889 transitions. [2021-10-19 14:38:35,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 296.3333333333333) internal successors, (889), 3 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:35,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:35,501 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:35,502 INFO L186 Difference]: Start difference. First operand has 257 places, 255 transitions, 593 flow. Second operand 3 states and 889 transitions. [2021-10-19 14:38:35,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 254 transitions, 643 flow [2021-10-19 14:38:35,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 254 transitions, 639 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:38:35,508 INFO L242 Difference]: Finished difference. Result has 256 places, 254 transitions, 591 flow [2021-10-19 14:38:35,508 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=587, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=591, PETRI_PLACES=256, PETRI_TRANSITIONS=254} [2021-10-19 14:38:35,508 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -50 predicate places. [2021-10-19 14:38:35,508 INFO L470 AbstractCegarLoop]: Abstraction has has 256 places, 254 transitions, 591 flow [2021-10-19 14:38:35,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:35,509 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:35,509 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:35,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-19 14:38:35,509 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:35,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:35,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1203586424, now seen corresponding path program 1 times [2021-10-19 14:38:35,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:35,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218167439] [2021-10-19 14:38:35,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:35,510 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:35,631 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 14:38:35,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:35,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218167439] [2021-10-19 14:38:35,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218167439] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:35,631 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:35,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-19 14:38:35,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817095801] [2021-10-19 14:38:35,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-19 14:38:35,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:35,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-19 14:38:35,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-19 14:38:35,634 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 331 [2021-10-19 14:38:35,636 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 254 transitions, 591 flow. Second operand has 6 states, 6 states have (on average 295.5) internal successors, (1773), 6 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:35,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:35,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 331 [2021-10-19 14:38:35,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:35,871 INFO L129 PetriNetUnfolder]: 87/1183 cut-off events. [2021-10-19 14:38:35,871 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-10-19 14:38:35,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1568 conditions, 1183 events. 87/1183 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 8055 event pairs, 8 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 1388. Up to 108 conditions per place. [2021-10-19 14:38:35,891 INFO L132 encePairwiseOnDemand]: 326/331 looper letters, 23 selfloop transitions, 4 changer transitions 0/253 dead transitions. [2021-10-19 14:38:35,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 253 transitions, 643 flow [2021-10-19 14:38:35,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-19 14:38:35,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-19 14:38:35,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1792 transitions. [2021-10-19 14:38:35,895 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9023162134944612 [2021-10-19 14:38:35,895 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1792 transitions. [2021-10-19 14:38:35,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1792 transitions. [2021-10-19 14:38:35,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:35,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1792 transitions. [2021-10-19 14:38:35,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 298.6666666666667) internal successors, (1792), 6 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:35,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 331.0) internal successors, (2317), 7 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:35,902 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 331.0) internal successors, (2317), 7 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:35,902 INFO L186 Difference]: Start difference. First operand has 256 places, 254 transitions, 591 flow. Second operand 6 states and 1792 transitions. [2021-10-19 14:38:35,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 253 transitions, 643 flow [2021-10-19 14:38:35,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 253 transitions, 639 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:38:35,908 INFO L242 Difference]: Finished difference. Result has 258 places, 253 transitions, 593 flow [2021-10-19 14:38:35,909 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=593, PETRI_PLACES=258, PETRI_TRANSITIONS=253} [2021-10-19 14:38:35,909 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -48 predicate places. [2021-10-19 14:38:35,909 INFO L470 AbstractCegarLoop]: Abstraction has has 258 places, 253 transitions, 593 flow [2021-10-19 14:38:35,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 295.5) internal successors, (1773), 6 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:35,910 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:35,910 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:35,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-19 14:38:35,910 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:35,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:35,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1137564065, now seen corresponding path program 1 times [2021-10-19 14:38:35,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:35,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590299039] [2021-10-19 14:38:35,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:35,911 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:35,940 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 14:38:35,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:35,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590299039] [2021-10-19 14:38:35,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590299039] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:35,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:35,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:35,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586627522] [2021-10-19 14:38:35,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:35,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:35,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:35,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:35,945 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 331 [2021-10-19 14:38:35,945 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 253 transitions, 593 flow. Second operand has 3 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:35,946 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:35,946 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 331 [2021-10-19 14:38:35,946 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:36,159 INFO L129 PetriNetUnfolder]: 87/1169 cut-off events. [2021-10-19 14:38:36,159 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2021-10-19 14:38:36,171 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1686 conditions, 1169 events. 87/1169 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7902 event pairs, 8 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 1534. Up to 210 conditions per place. [2021-10-19 14:38:36,174 INFO L132 encePairwiseOnDemand]: 328/331 looper letters, 20 selfloop transitions, 2 changer transitions 0/252 dead transitions. [2021-10-19 14:38:36,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 252 transitions, 635 flow [2021-10-19 14:38:36,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:36,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:36,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 895 transitions. [2021-10-19 14:38:36,183 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9013091641490433 [2021-10-19 14:38:36,183 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 895 transitions. [2021-10-19 14:38:36,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 895 transitions. [2021-10-19 14:38:36,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:36,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 895 transitions. [2021-10-19 14:38:36,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,187 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,188 INFO L186 Difference]: Start difference. First operand has 258 places, 253 transitions, 593 flow. Second operand 3 states and 895 transitions. [2021-10-19 14:38:36,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 252 transitions, 635 flow [2021-10-19 14:38:36,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 252 transitions, 628 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-19 14:38:36,193 INFO L242 Difference]: Finished difference. Result has 255 places, 252 transitions, 588 flow [2021-10-19 14:38:36,194 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=255, PETRI_TRANSITIONS=252} [2021-10-19 14:38:36,194 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -51 predicate places. [2021-10-19 14:38:36,195 INFO L470 AbstractCegarLoop]: Abstraction has has 255 places, 252 transitions, 588 flow [2021-10-19 14:38:36,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.6666666666667) internal successors, (893), 3 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,195 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:36,195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:36,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-19 14:38:36,195 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread4Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:36,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:36,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1122030158, now seen corresponding path program 1 times [2021-10-19 14:38:36,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:36,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415052670] [2021-10-19 14:38:36,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:36,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:36,229 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 14:38:36,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:36,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415052670] [2021-10-19 14:38:36,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415052670] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:36,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:36,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:36,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827163405] [2021-10-19 14:38:36,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:36,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:36,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:36,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:36,234 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 331 [2021-10-19 14:38:36,235 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 252 transitions, 588 flow. Second operand has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,235 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:36,235 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 331 [2021-10-19 14:38:36,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:36,413 INFO L129 PetriNetUnfolder]: 87/1165 cut-off events. [2021-10-19 14:38:36,413 INFO L130 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2021-10-19 14:38:36,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1544 conditions, 1165 events. 87/1165 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7840 event pairs, 8 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 1378. Up to 108 conditions per place. [2021-10-19 14:38:36,432 INFO L132 encePairwiseOnDemand]: 328/331 looper letters, 21 selfloop transitions, 2 changer transitions 0/251 dead transitions. [2021-10-19 14:38:36,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 251 transitions, 632 flow [2021-10-19 14:38:36,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:36,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:36,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 896 transitions. [2021-10-19 14:38:36,434 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9023162134944612 [2021-10-19 14:38:36,434 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 896 transitions. [2021-10-19 14:38:36,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 896 transitions. [2021-10-19 14:38:36,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:36,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 896 transitions. [2021-10-19 14:38:36,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.6666666666667) internal successors, (896), 3 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 14:38:36,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,438 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,438 INFO L186 Difference]: Start difference. First operand has 255 places, 252 transitions, 588 flow. Second operand 3 states and 896 transitions. [2021-10-19 14:38:36,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 251 transitions, 632 flow [2021-10-19 14:38:36,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 251 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:38:36,444 INFO L242 Difference]: Finished difference. Result has 254 places, 251 transitions, 586 flow [2021-10-19 14:38:36,445 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=586, PETRI_PLACES=254, PETRI_TRANSITIONS=251} [2021-10-19 14:38:36,445 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -52 predicate places. [2021-10-19 14:38:36,445 INFO L470 AbstractCegarLoop]: Abstraction has has 254 places, 251 transitions, 586 flow [2021-10-19 14:38:36,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,446 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:36,446 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:36,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-19 14:38:36,446 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:36,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:36,447 INFO L82 PathProgramCache]: Analyzing trace with hash 248651556, now seen corresponding path program 1 times [2021-10-19 14:38:36,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:36,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958748051] [2021-10-19 14:38:36,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:36,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:36,474 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 14:38:36,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:36,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958748051] [2021-10-19 14:38:36,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958748051] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:36,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:36,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:36,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113697952] [2021-10-19 14:38:36,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:36,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:36,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:36,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:36,477 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 331 [2021-10-19 14:38:36,477 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 251 transitions, 586 flow. Second operand has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,477 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:36,477 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 331 [2021-10-19 14:38:36,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:36,652 INFO L129 PetriNetUnfolder]: 87/1157 cut-off events. [2021-10-19 14:38:36,652 INFO L130 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2021-10-19 14:38:36,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1572 conditions, 1157 events. 87/1157 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7778 event pairs, 8 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 1456. Up to 121 conditions per place. [2021-10-19 14:38:36,670 INFO L132 encePairwiseOnDemand]: 328/331 looper letters, 23 selfloop transitions, 2 changer transitions 0/250 dead transitions. [2021-10-19 14:38:36,670 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 250 transitions, 634 flow [2021-10-19 14:38:36,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:36,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:36,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 888 transitions. [2021-10-19 14:38:36,672 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8942598187311178 [2021-10-19 14:38:36,672 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 888 transitions. [2021-10-19 14:38:36,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 888 transitions. [2021-10-19 14:38:36,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:36,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 888 transitions. [2021-10-19 14:38:36,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,676 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,676 INFO L186 Difference]: Start difference. First operand has 254 places, 251 transitions, 586 flow. Second operand 3 states and 888 transitions. [2021-10-19 14:38:36,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 250 transitions, 634 flow [2021-10-19 14:38:36,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 250 transitions, 630 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:38:36,683 INFO L242 Difference]: Finished difference. Result has 253 places, 250 transitions, 584 flow [2021-10-19 14:38:36,683 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=584, PETRI_PLACES=253, PETRI_TRANSITIONS=250} [2021-10-19 14:38:36,683 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -53 predicate places. [2021-10-19 14:38:36,683 INFO L470 AbstractCegarLoop]: Abstraction has has 253 places, 250 transitions, 584 flow [2021-10-19 14:38:36,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,684 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:36,684 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:36,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-19 14:38:36,684 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thread4Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:36,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:36,686 INFO L82 PathProgramCache]: Analyzing trace with hash -520763558, now seen corresponding path program 1 times [2021-10-19 14:38:36,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:36,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718236757] [2021-10-19 14:38:36,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:36,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:36,714 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 14:38:36,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:36,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718236757] [2021-10-19 14:38:36,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718236757] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:36,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:36,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:38:36,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247914867] [2021-10-19 14:38:36,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:38:36,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:36,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:38:36,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:38:36,717 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 331 [2021-10-19 14:38:36,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 250 transitions, 584 flow. Second operand has 3 states, 3 states have (on average 297.0) internal successors, (891), 3 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:36,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 331 [2021-10-19 14:38:36,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:36,873 INFO L129 PetriNetUnfolder]: 87/1153 cut-off events. [2021-10-19 14:38:36,873 INFO L130 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2021-10-19 14:38:36,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1516 conditions, 1153 events. 87/1153 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7731 event pairs, 8 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 1432. Up to 108 conditions per place. [2021-10-19 14:38:36,892 INFO L132 encePairwiseOnDemand]: 328/331 looper letters, 20 selfloop transitions, 2 changer transitions 0/249 dead transitions. [2021-10-19 14:38:36,892 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 249 transitions, 626 flow [2021-10-19 14:38:36,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:38:36,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:38:36,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 895 transitions. [2021-10-19 14:38:36,895 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9013091641490433 [2021-10-19 14:38:36,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 895 transitions. [2021-10-19 14:38:36,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 895 transitions. [2021-10-19 14:38:36,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:36,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 895 transitions. [2021-10-19 14:38:36,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,899 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 331.0) internal successors, (1324), 4 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,899 INFO L186 Difference]: Start difference. First operand has 253 places, 250 transitions, 584 flow. Second operand 3 states and 895 transitions. [2021-10-19 14:38:36,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 249 transitions, 626 flow [2021-10-19 14:38:36,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 249 transitions, 622 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:38:36,904 INFO L242 Difference]: Finished difference. Result has 252 places, 249 transitions, 582 flow [2021-10-19 14:38:36,905 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=582, PETRI_PLACES=252, PETRI_TRANSITIONS=249} [2021-10-19 14:38:36,906 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -54 predicate places. [2021-10-19 14:38:36,906 INFO L470 AbstractCegarLoop]: Abstraction has has 252 places, 249 transitions, 582 flow [2021-10-19 14:38:36,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 297.0) internal successors, (891), 3 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:36,907 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:36,907 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:36,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-19 14:38:36,907 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:36,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:36,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1650662365, now seen corresponding path program 1 times [2021-10-19 14:38:36,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:36,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404932646] [2021-10-19 14:38:36,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:36,908 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:37,020 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 14:38:37,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:37,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404932646] [2021-10-19 14:38:37,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404932646] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:37,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:37,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-19 14:38:37,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716362528] [2021-10-19 14:38:37,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-19 14:38:37,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:37,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-19 14:38:37,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-19 14:38:37,024 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 331 [2021-10-19 14:38:37,025 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 249 transitions, 582 flow. Second operand has 6 states, 6 states have (on average 296.3333333333333) internal successors, (1778), 6 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:37,025 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:37,025 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 331 [2021-10-19 14:38:37,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:37,240 INFO L129 PetriNetUnfolder]: 87/1150 cut-off events. [2021-10-19 14:38:37,240 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-10-19 14:38:37,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1527 conditions, 1150 events. 87/1150 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7692 event pairs, 8 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 1459. Up to 108 conditions per place. [2021-10-19 14:38:37,252 INFO L132 encePairwiseOnDemand]: 326/331 looper letters, 22 selfloop transitions, 4 changer transitions 0/248 dead transitions. [2021-10-19 14:38:37,252 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 248 transitions, 632 flow [2021-10-19 14:38:37,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-19 14:38:37,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-19 14:38:37,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1791 transitions. [2021-10-19 14:38:37,257 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9018126888217523 [2021-10-19 14:38:37,257 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1791 transitions. [2021-10-19 14:38:37,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1791 transitions. [2021-10-19 14:38:37,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:37,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1791 transitions. [2021-10-19 14:38:37,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 298.5) internal successors, (1791), 6 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:37,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 331.0) internal successors, (2317), 7 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:37,264 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 331.0) internal successors, (2317), 7 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:37,264 INFO L186 Difference]: Start difference. First operand has 252 places, 249 transitions, 582 flow. Second operand 6 states and 1791 transitions. [2021-10-19 14:38:37,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 248 transitions, 632 flow [2021-10-19 14:38:37,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 248 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:38:37,270 INFO L242 Difference]: Finished difference. Result has 254 places, 248 transitions, 584 flow [2021-10-19 14:38:37,270 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=584, PETRI_PLACES=254, PETRI_TRANSITIONS=248} [2021-10-19 14:38:37,270 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -52 predicate places. [2021-10-19 14:38:37,270 INFO L470 AbstractCegarLoop]: Abstraction has has 254 places, 248 transitions, 584 flow [2021-10-19 14:38:37,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 296.3333333333333) internal successors, (1778), 6 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:37,271 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:37,271 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:37,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-19 14:38:37,272 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:37,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:37,272 INFO L82 PathProgramCache]: Analyzing trace with hash 188168880, now seen corresponding path program 1 times [2021-10-19 14:38:37,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:37,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409456204] [2021-10-19 14:38:37,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:37,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:37,390 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 14:38:37,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:37,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409456204] [2021-10-19 14:38:37,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409456204] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:37,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:37,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-19 14:38:37,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611723841] [2021-10-19 14:38:37,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-19 14:38:37,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:37,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-19 14:38:37,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-19 14:38:37,394 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 331 [2021-10-19 14:38:37,395 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 248 transitions, 584 flow. Second operand has 6 states, 6 states have (on average 297.1666666666667) internal successors, (1783), 6 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:37,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:37,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 331 [2021-10-19 14:38:37,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:37,612 INFO L129 PetriNetUnfolder]: 87/1143 cut-off events. [2021-10-19 14:38:37,613 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-19 14:38:37,630 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1521 conditions, 1143 events. 87/1143 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7646 event pairs, 8 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 1328. Up to 108 conditions per place. [2021-10-19 14:38:37,635 INFO L132 encePairwiseOnDemand]: 326/331 looper letters, 21 selfloop transitions, 4 changer transitions 0/247 dead transitions. [2021-10-19 14:38:37,635 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 247 transitions, 632 flow [2021-10-19 14:38:37,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-19 14:38:37,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-19 14:38:37,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1790 transitions. [2021-10-19 14:38:37,639 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9013091641490433 [2021-10-19 14:38:37,639 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1790 transitions. [2021-10-19 14:38:37,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1790 transitions. [2021-10-19 14:38:37,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:37,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1790 transitions. [2021-10-19 14:38:37,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 298.3333333333333) internal successors, (1790), 6 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:37,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 331.0) internal successors, (2317), 7 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:37,647 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 331.0) internal successors, (2317), 7 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:37,647 INFO L186 Difference]: Start difference. First operand has 254 places, 248 transitions, 584 flow. Second operand 6 states and 1790 transitions. [2021-10-19 14:38:37,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 247 transitions, 632 flow [2021-10-19 14:38:37,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 247 transitions, 625 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-19 14:38:37,653 INFO L242 Difference]: Finished difference. Result has 254 places, 247 transitions, 583 flow [2021-10-19 14:38:37,654 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=583, PETRI_PLACES=254, PETRI_TRANSITIONS=247} [2021-10-19 14:38:37,654 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -52 predicate places. [2021-10-19 14:38:37,654 INFO L470 AbstractCegarLoop]: Abstraction has has 254 places, 247 transitions, 583 flow [2021-10-19 14:38:37,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 297.1666666666667) internal successors, (1783), 6 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:37,655 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:38:37,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:38:37,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-19 14:38:37,655 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 83 more)] === [2021-10-19 14:38:37,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:38:37,656 INFO L82 PathProgramCache]: Analyzing trace with hash -914509017, now seen corresponding path program 1 times [2021-10-19 14:38:37,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:38:37,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685590102] [2021-10-19 14:38:37,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:38:37,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:38:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:38:37,743 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 14:38:37,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:38:37,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685590102] [2021-10-19 14:38:37,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685590102] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:38:37,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:38:37,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-19 14:38:37,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286956080] [2021-10-19 14:38:37,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-19 14:38:37,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:38:37,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-19 14:38:37,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-19 14:38:37,746 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 331 [2021-10-19 14:38:37,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 247 transitions, 583 flow. Second operand has 6 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:37,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:38:37,748 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 331 [2021-10-19 14:38:37,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:38:37,929 INFO L129 PetriNetUnfolder]: 87/1140 cut-off events. [2021-10-19 14:38:37,929 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-10-19 14:38:37,942 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1530 conditions, 1140 events. 87/1140 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 7651 event pairs, 8 based on Foata normal form. 0/1069 useless extension candidates. Maximal degree in co-relation 1382. Up to 108 conditions per place. [2021-10-19 14:38:37,943 INFO L132 encePairwiseOnDemand]: 326/331 looper letters, 0 selfloop transitions, 0 changer transitions 246/246 dead transitions. [2021-10-19 14:38:37,943 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 246 transitions, 629 flow [2021-10-19 14:38:37,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-19 14:38:37,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-19 14:38:37,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1789 transitions. [2021-10-19 14:38:37,947 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9008056394763343 [2021-10-19 14:38:37,947 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1789 transitions. [2021-10-19 14:38:37,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1789 transitions. [2021-10-19 14:38:37,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:38:37,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1789 transitions. [2021-10-19 14:38:37,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 298.1666666666667) internal successors, (1789), 6 states have internal predecessors, (1789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:37,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 331.0) internal successors, (2317), 7 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:37,954 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 331.0) internal successors, (2317), 7 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:37,954 INFO L186 Difference]: Start difference. First operand has 254 places, 247 transitions, 583 flow. Second operand 6 states and 1789 transitions. [2021-10-19 14:38:37,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 246 transitions, 629 flow [2021-10-19 14:38:37,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 246 transitions, 622 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-19 14:38:37,958 INFO L242 Difference]: Finished difference. Result has 254 places, 0 transitions, 0 flow [2021-10-19 14:38:37,958 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=331, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=254, PETRI_TRANSITIONS=0} [2021-10-19 14:38:37,959 INFO L334 CegarLoopForPetriNet]: 306 programPoint places, -52 predicate places. [2021-10-19 14:38:37,959 INFO L470 AbstractCegarLoop]: Abstraction has has 254 places, 0 transitions, 0 flow [2021-10-19 14:38:37,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:38:37,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,962 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,963 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,964 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,965 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-19 14:38:37,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-19 14:38:37,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-19 14:38:37,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-19 14:38:37,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,966 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err7ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,967 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,968 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,969 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,970 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread4Err7ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:38:37,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-19 14:38:37,978 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-19 14:38:37,979 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-19 14:38:37,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 02:38:37 BasicIcfg [2021-10-19 14:38:37,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-19 14:38:37,983 INFO L168 Benchmark]: Toolchain (without parser) took 7997.92 ms. Allocated memory was 217.1 MB in the beginning and 634.4 MB in the end (delta: 417.3 MB). Free memory was 161.4 MB in the beginning and 331.2 MB in the end (delta: -169.8 MB). Peak memory consumption was 247.7 MB. Max. memory is 8.0 GB. [2021-10-19 14:38:37,983 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 217.1 MB. Free memory is still 177.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-19 14:38:37,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.44 ms. Allocated memory was 217.1 MB in the beginning and 298.8 MB in the end (delta: 81.8 MB). Free memory was 161.1 MB in the beginning and 267.4 MB in the end (delta: -106.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 8.0 GB. [2021-10-19 14:38:37,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.59 ms. Allocated memory is still 298.8 MB. Free memory was 267.4 MB in the beginning and 265.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-19 14:38:37,983 INFO L168 Benchmark]: Boogie Preprocessor took 64.26 ms. Allocated memory is still 298.8 MB. Free memory was 265.3 MB in the beginning and 263.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-19 14:38:37,984 INFO L168 Benchmark]: RCFGBuilder took 562.80 ms. Allocated memory is still 298.8 MB. Free memory was 263.2 MB in the beginning and 242.6 MB in the end (delta: 20.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-10-19 14:38:37,984 INFO L168 Benchmark]: TraceAbstraction took 7065.20 ms. Allocated memory was 298.8 MB in the beginning and 634.4 MB in the end (delta: 335.5 MB). Free memory was 242.2 MB in the beginning and 331.2 MB in the end (delta: -89.0 MB). Peak memory consumption was 247.0 MB. Max. memory is 8.0 GB. [2021-10-19 14:38:37,985 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 217.1 MB. Free memory is still 177.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 226.44 ms. Allocated memory was 217.1 MB in the beginning and 298.8 MB in the end (delta: 81.8 MB). Free memory was 161.1 MB in the beginning and 267.4 MB in the end (delta: -106.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 67.59 ms. Allocated memory is still 298.8 MB. Free memory was 267.4 MB in the beginning and 265.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 64.26 ms. Allocated memory is still 298.8 MB. Free memory was 265.3 MB in the beginning and 263.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 562.80 ms. Allocated memory is still 298.8 MB. Free memory was 263.2 MB in the beginning and 242.6 MB in the end (delta: 20.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7065.20 ms. Allocated memory was 298.8 MB in the beginning and 634.4 MB in the end (delta: 335.5 MB). Free memory was 242.2 MB in the beginning and 331.2 MB in the end (delta: -89.0 MB). Peak memory consumption was 247.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 38]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 38]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 39]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 39]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 39]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 40]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 40]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 40]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 458 locations, 87 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 38.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6894.9ms, OverallIterations: 22, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 5187.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 142.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 442 SDtfs, 100 SDslu, 0 SDs, 0 SdLazy, 537 SolverSat, 162 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 467.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 142.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=634occurred in iteration=0, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 68.6ms SsaConstructionTime, 282.3ms SatisfiabilityAnalysisTime, 850.2ms InterpolantComputationTime, 1697 NumberOfCodeBlocks, 1697 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1675 ConstructedInterpolants, 0 QuantifiedInterpolants, 2155 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 51 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-19 14:38:38,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...