/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/security.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-5b77e9fc37942d960732eb3788a90132329d3bc4-5b77e9f [2021-10-19 14:44:26,081 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-10-19 14:44:26,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-19 14:44:26,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-19 14:44:26,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-19 14:44:26,181 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 14:44:26,196 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-19 14:44:26,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-19 14:44:26,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-19 14:44:26,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-19 14:44:26,198 INFO L138 SettingsManager]: * Use SBE=true [2021-10-19 14:44:26,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-19 14:44:26,198 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-19 14:44:26,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-19 14:44:26,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-19 14:44:26,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-19 14:44:26,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-19 14:44:26,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-19 14:44:26,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-19 14:44:26,199 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-19 14:44:26,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-19 14:44:26,199 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-19 14:44:26,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-19 14:44:26,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-19 14:44:26,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-19 14:44:26,200 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-19 14:44:26,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-19 14:44:26,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-19 14:44:26,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-19 14:44:26,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-19 14:44:26,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-19 14:44:26,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-19 14:44:26,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-19 14:44:26,201 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-19 14:44:26,201 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-19 14:44:26,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-19 14:44:26,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-19 14:44:26,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-19 14:44:26,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-19 14:44:26,383 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-19 14:44:26,384 INFO L275 PluginConnector]: CDTParser initialized [2021-10-19 14:44:26,385 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/security.wvr.c [2021-10-19 14:44:26,444 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97a473e4d/040990558cd24dda9efe088bb10f4613/FLAG6b43fdd8a [2021-10-19 14:44:26,740 INFO L306 CDTParser]: Found 1 translation units. [2021-10-19 14:44:26,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/security.wvr.c [2021-10-19 14:44:26,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97a473e4d/040990558cd24dda9efe088bb10f4613/FLAG6b43fdd8a [2021-10-19 14:44:27,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97a473e4d/040990558cd24dda9efe088bb10f4613 [2021-10-19 14:44:27,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-19 14:44:27,175 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-19 14:44:27,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-19 14:44:27,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-19 14:44:27,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-19 14:44:27,179 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 02:44:27" (1/1) ... [2021-10-19 14:44:27,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318a378a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:44:27, skipping insertion in model container [2021-10-19 14:44:27,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 02:44:27" (1/1) ... [2021-10-19 14:44:27,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-19 14:44:27,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-19 14:44:27,309 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/security.wvr.c[1931,1944] [2021-10-19 14:44:27,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-19 14:44:27,315 INFO L203 MainTranslator]: Completed pre-run [2021-10-19 14:44:27,337 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/security.wvr.c[1931,1944] [2021-10-19 14:44:27,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-19 14:44:27,346 INFO L208 MainTranslator]: Completed translation [2021-10-19 14:44:27,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:44:27 WrapperNode [2021-10-19 14:44:27,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-19 14:44:27,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-19 14:44:27,347 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-19 14:44:27,347 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-19 14:44:27,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:44:27" (1/1) ... [2021-10-19 14:44:27,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:44:27" (1/1) ... [2021-10-19 14:44:27,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-19 14:44:27,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-19 14:44:27,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-19 14:44:27,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-19 14:44:27,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:44:27" (1/1) ... [2021-10-19 14:44:27,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:44:27" (1/1) ... [2021-10-19 14:44:27,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:44:27" (1/1) ... [2021-10-19 14:44:27,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:44:27" (1/1) ... [2021-10-19 14:44:27,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:44:27" (1/1) ... [2021-10-19 14:44:27,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:44:27" (1/1) ... [2021-10-19 14:44:27,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:44:27" (1/1) ... [2021-10-19 14:44:27,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-19 14:44:27,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-19 14:44:27,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-19 14:44:27,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-19 14:44:27,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:44:27" (1/1) ... [2021-10-19 14:44:27,398 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-19 14:44:27,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-19 14:44:27,418 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 14:44:27,420 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 14:44:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-19 14:44:27,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-19 14:44:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-19 14:44:27,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-19 14:44:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-19 14:44:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-19 14:44:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-19 14:44:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-19 14:44:27,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-19 14:44:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-19 14:44:27,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-19 14:44:27,443 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 14:44:27,678 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-19 14:44:27,678 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-19 14:44:27,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 02:44:27 BoogieIcfgContainer [2021-10-19 14:44:27,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-19 14:44:27,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-19 14:44:27,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-19 14:44:27,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-19 14:44:27,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 02:44:27" (1/3) ... [2021-10-19 14:44:27,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41af3bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 02:44:27, skipping insertion in model container [2021-10-19 14:44:27,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:44:27" (2/3) ... [2021-10-19 14:44:27,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41af3bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 02:44:27, skipping insertion in model container [2021-10-19 14:44:27,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 02:44:27" (3/3) ... [2021-10-19 14:44:27,701 INFO L111 eAbstractionObserver]: Analyzing ICFG security.wvr.c [2021-10-19 14:44:27,704 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-19 14:44:27,704 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-10-19 14:44:27,704 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-19 14:44:27,727 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,727 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,727 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,727 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,728 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,728 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,728 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,730 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,730 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,730 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,730 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,730 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,730 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,730 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,731 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,731 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,731 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,731 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,731 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,731 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,731 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,731 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,734 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,734 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,734 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,734 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,734 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,734 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,734 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,734 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,735 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,735 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,735 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,735 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,735 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,735 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,736 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,736 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,736 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,736 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,736 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,736 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,737 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,737 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,737 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,737 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,737 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,737 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,737 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,737 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,737 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,738 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,738 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,738 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,738 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,738 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,738 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,738 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,738 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,739 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,739 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,739 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,739 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,739 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,739 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,739 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,739 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,739 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,740 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,744 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,745 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,746 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,746 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,746 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,747 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,747 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,747 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,747 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,748 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,748 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,748 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,748 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,748 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,749 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,751 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,751 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,751 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,751 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:44:27,769 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-19 14:44:27,799 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-19 14:44:27,803 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 14:44:27,803 INFO L340 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2021-10-19 14:44:27,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 159 places, 155 transitions, 326 flow [2021-10-19 14:44:27,879 INFO L129 PetriNetUnfolder]: 3/153 cut-off events. [2021-10-19 14:44:27,880 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-19 14:44:27,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 153 events. 3/153 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 247 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2021-10-19 14:44:27,887 INFO L82 GeneralOperation]: Start removeDead. Operand has 159 places, 155 transitions, 326 flow [2021-10-19 14:44:27,894 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 138 transitions, 288 flow [2021-10-19 14:44:27,902 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-10-19 14:44:27,902 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:44:27,902 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:27,903 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 14:44:27,904 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:27,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:27,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1764682906, now seen corresponding path program 1 times [2021-10-19 14:44:27,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:27,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990956900] [2021-10-19 14:44:27,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:27,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:28,042 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 14:44:28,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:28,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990956900] [2021-10-19 14:44:28,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990956900] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:28,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:28,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:28,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899085273] [2021-10-19 14:44:28,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:28,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:28,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:28,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:28,068 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 155 [2021-10-19 14:44:28,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,074 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:28,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 155 [2021-10-19 14:44:28,075 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:28,145 INFO L129 PetriNetUnfolder]: 11/196 cut-off events. [2021-10-19 14:44:28,145 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-19 14:44:28,146 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 196 events. 11/196 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 547 event pairs, 9 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 181. Up to 28 conditions per place. [2021-10-19 14:44:28,148 INFO L132 encePairwiseOnDemand]: 152/155 looper letters, 9 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2021-10-19 14:44:28,148 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 137 transitions, 308 flow [2021-10-19 14:44:28,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:28,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:28,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2021-10-19 14:44:28,157 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9354838709677419 [2021-10-19 14:44:28,158 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2021-10-19 14:44:28,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2021-10-19 14:44:28,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:28,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2021-10-19 14:44:28,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,176 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,177 INFO L186 Difference]: Start difference. First operand has 143 places, 138 transitions, 288 flow. Second operand 3 states and 435 transitions. [2021-10-19 14:44:28,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 137 transitions, 308 flow [2021-10-19 14:44:28,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 137 transitions, 300 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-19 14:44:28,184 INFO L242 Difference]: Finished difference. Result has 140 places, 137 transitions, 282 flow [2021-10-19 14:44:28,185 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=140, PETRI_TRANSITIONS=137} [2021-10-19 14:44:28,186 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -3 predicate places. [2021-10-19 14:44:28,186 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 137 transitions, 282 flow [2021-10-19 14:44:28,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,187 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:28,187 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] [2021-10-19 14:44:28,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-19 14:44:28,187 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:28,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:28,188 INFO L82 PathProgramCache]: Analyzing trace with hash 428372080, now seen corresponding path program 1 times [2021-10-19 14:44:28,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:28,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609881493] [2021-10-19 14:44:28,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:28,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:28,252 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 14:44:28,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:28,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609881493] [2021-10-19 14:44:28,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609881493] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:28,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:28,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:28,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609355394] [2021-10-19 14:44:28,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:28,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:28,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:28,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:28,258 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 155 [2021-10-19 14:44:28,259 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 137 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,259 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:28,259 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 155 [2021-10-19 14:44:28,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:28,293 INFO L129 PetriNetUnfolder]: 2/136 cut-off events. [2021-10-19 14:44:28,293 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:44:28,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 136 events. 2/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 257 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 122. Up to 7 conditions per place. [2021-10-19 14:44:28,295 INFO L132 encePairwiseOnDemand]: 152/155 looper letters, 6 selfloop transitions, 2 changer transitions 0/136 dead transitions. [2021-10-19 14:44:28,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 136 transitions, 296 flow [2021-10-19 14:44:28,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:28,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:28,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2021-10-19 14:44:28,297 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9483870967741935 [2021-10-19 14:44:28,297 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 441 transitions. [2021-10-19 14:44:28,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 441 transitions. [2021-10-19 14:44:28,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:28,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 441 transitions. [2021-10-19 14:44:28,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,300 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,300 INFO L186 Difference]: Start difference. First operand has 140 places, 137 transitions, 282 flow. Second operand 3 states and 441 transitions. [2021-10-19 14:44:28,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 136 transitions, 296 flow [2021-10-19 14:44:28,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 136 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:44:28,303 INFO L242 Difference]: Finished difference. Result has 139 places, 136 transitions, 280 flow [2021-10-19 14:44:28,303 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=139, PETRI_TRANSITIONS=136} [2021-10-19 14:44:28,304 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -4 predicate places. [2021-10-19 14:44:28,304 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 136 transitions, 280 flow [2021-10-19 14:44:28,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,304 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:28,304 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] [2021-10-19 14:44:28,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-19 14:44:28,305 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:28,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:28,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1920031048, now seen corresponding path program 1 times [2021-10-19 14:44:28,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:28,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001234519] [2021-10-19 14:44:28,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:28,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:28,334 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 14:44:28,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:28,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001234519] [2021-10-19 14:44:28,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001234519] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:28,335 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:28,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:28,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957028380] [2021-10-19 14:44:28,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:28,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:28,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:28,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:28,337 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 155 [2021-10-19 14:44:28,337 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 136 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,337 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:28,337 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 155 [2021-10-19 14:44:28,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:28,356 INFO L129 PetriNetUnfolder]: 1/165 cut-off events. [2021-10-19 14:44:28,356 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-19 14:44:28,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 165 events. 1/165 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 369 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 135. Up to 3 conditions per place. [2021-10-19 14:44:28,357 INFO L132 encePairwiseOnDemand]: 153/155 looper letters, 3 selfloop transitions, 1 changer transitions 0/135 dead transitions. [2021-10-19 14:44:28,357 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 135 transitions, 286 flow [2021-10-19 14:44:28,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:28,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:28,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2021-10-19 14:44:28,359 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9591397849462365 [2021-10-19 14:44:28,359 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2021-10-19 14:44:28,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2021-10-19 14:44:28,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:28,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2021-10-19 14:44:28,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,362 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,362 INFO L186 Difference]: Start difference. First operand has 139 places, 136 transitions, 280 flow. Second operand 3 states and 446 transitions. [2021-10-19 14:44:28,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 135 transitions, 286 flow [2021-10-19 14:44:28,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 135 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:44:28,364 INFO L242 Difference]: Finished difference. Result has 138 places, 135 transitions, 276 flow [2021-10-19 14:44:28,364 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=138, PETRI_TRANSITIONS=135} [2021-10-19 14:44:28,365 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -5 predicate places. [2021-10-19 14:44:28,365 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 135 transitions, 276 flow [2021-10-19 14:44:28,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,365 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:28,365 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] [2021-10-19 14:44:28,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-19 14:44:28,366 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:28,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:28,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1015741019, now seen corresponding path program 1 times [2021-10-19 14:44:28,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:28,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342184851] [2021-10-19 14:44:28,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:28,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:28,391 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 14:44:28,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:28,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342184851] [2021-10-19 14:44:28,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342184851] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:28,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:28,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:28,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985893603] [2021-10-19 14:44:28,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:28,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:28,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:28,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:28,394 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 155 [2021-10-19 14:44:28,395 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 135 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,395 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:28,395 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 155 [2021-10-19 14:44:28,395 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:28,448 INFO L129 PetriNetUnfolder]: 1/164 cut-off events. [2021-10-19 14:44:28,449 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:44:28,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 164 events. 1/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 363 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 136. Up to 7 conditions per place. [2021-10-19 14:44:28,451 INFO L132 encePairwiseOnDemand]: 152/155 looper letters, 6 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2021-10-19 14:44:28,451 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 134 transitions, 290 flow [2021-10-19 14:44:28,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:28,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:28,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2021-10-19 14:44:28,453 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9483870967741935 [2021-10-19 14:44:28,453 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 441 transitions. [2021-10-19 14:44:28,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 441 transitions. [2021-10-19 14:44:28,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:28,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 441 transitions. [2021-10-19 14:44:28,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,455 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,455 INFO L186 Difference]: Start difference. First operand has 138 places, 135 transitions, 276 flow. Second operand 3 states and 441 transitions. [2021-10-19 14:44:28,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 134 transitions, 290 flow [2021-10-19 14:44:28,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 134 transitions, 289 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:44:28,458 INFO L242 Difference]: Finished difference. Result has 138 places, 134 transitions, 277 flow [2021-10-19 14:44:28,458 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=138, PETRI_TRANSITIONS=134} [2021-10-19 14:44:28,459 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -5 predicate places. [2021-10-19 14:44:28,459 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 134 transitions, 277 flow [2021-10-19 14:44:28,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,459 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:28,459 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:44:28,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-19 14:44:28,460 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:28,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:28,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1656527450, now seen corresponding path program 1 times [2021-10-19 14:44:28,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:28,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876201612] [2021-10-19 14:44:28,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:28,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:28,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:28,511 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 14:44:28,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:28,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876201612] [2021-10-19 14:44:28,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876201612] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:28,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:28,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:28,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454076262] [2021-10-19 14:44:28,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:28,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:28,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:28,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:28,517 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 155 [2021-10-19 14:44:28,518 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 134 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,518 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:28,518 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 155 [2021-10-19 14:44:28,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:28,551 INFO L129 PetriNetUnfolder]: 1/163 cut-off events. [2021-10-19 14:44:28,551 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:44:28,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 163 events. 1/163 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 358 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 138. Up to 13 conditions per place. [2021-10-19 14:44:28,553 INFO L132 encePairwiseOnDemand]: 152/155 looper letters, 9 selfloop transitions, 2 changer transitions 0/133 dead transitions. [2021-10-19 14:44:28,553 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 133 transitions, 297 flow [2021-10-19 14:44:28,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:28,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:28,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2021-10-19 14:44:28,556 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9354838709677419 [2021-10-19 14:44:28,556 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2021-10-19 14:44:28,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2021-10-19 14:44:28,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:28,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2021-10-19 14:44:28,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,558 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,558 INFO L186 Difference]: Start difference. First operand has 138 places, 134 transitions, 277 flow. Second operand 3 states and 435 transitions. [2021-10-19 14:44:28,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 133 transitions, 297 flow [2021-10-19 14:44:28,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 133 transitions, 293 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:44:28,560 INFO L242 Difference]: Finished difference. Result has 137 places, 133 transitions, 275 flow [2021-10-19 14:44:28,561 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=275, PETRI_PLACES=137, PETRI_TRANSITIONS=133} [2021-10-19 14:44:28,561 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -6 predicate places. [2021-10-19 14:44:28,561 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 133 transitions, 275 flow [2021-10-19 14:44:28,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,561 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:28,561 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] [2021-10-19 14:44:28,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-19 14:44:28,562 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:28,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:28,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1150845470, now seen corresponding path program 1 times [2021-10-19 14:44:28,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:28,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599179941] [2021-10-19 14:44:28,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:28,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:28,593 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 14:44:28,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:28,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599179941] [2021-10-19 14:44:28,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599179941] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:28,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:28,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:28,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964611330] [2021-10-19 14:44:28,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:28,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:28,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:28,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:28,596 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 155 [2021-10-19 14:44:28,596 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 133 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,596 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:28,596 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 155 [2021-10-19 14:44:28,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:28,624 INFO L129 PetriNetUnfolder]: 1/162 cut-off events. [2021-10-19 14:44:28,625 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-19 14:44:28,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 162 events. 1/162 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 349 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 140. Up to 12 conditions per place. [2021-10-19 14:44:28,626 INFO L132 encePairwiseOnDemand]: 152/155 looper letters, 8 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2021-10-19 14:44:28,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 132 transitions, 293 flow [2021-10-19 14:44:28,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:28,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:28,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 434 transitions. [2021-10-19 14:44:28,628 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2021-10-19 14:44:28,628 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 434 transitions. [2021-10-19 14:44:28,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 434 transitions. [2021-10-19 14:44:28,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:28,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 434 transitions. [2021-10-19 14:44:28,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,631 INFO L186 Difference]: Start difference. First operand has 137 places, 133 transitions, 275 flow. Second operand 3 states and 434 transitions. [2021-10-19 14:44:28,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 132 transitions, 293 flow [2021-10-19 14:44:28,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 132 transitions, 289 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:44:28,633 INFO L242 Difference]: Finished difference. Result has 136 places, 132 transitions, 273 flow [2021-10-19 14:44:28,633 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=136, PETRI_TRANSITIONS=132} [2021-10-19 14:44:28,633 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -7 predicate places. [2021-10-19 14:44:28,634 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 132 transitions, 273 flow [2021-10-19 14:44:28,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,634 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:28,634 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] [2021-10-19 14:44:28,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-19 14:44:28,634 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:28,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:28,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1415639738, now seen corresponding path program 1 times [2021-10-19 14:44:28,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:28,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716895276] [2021-10-19 14:44:28,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:28,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:28,751 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 14:44:28,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:28,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716895276] [2021-10-19 14:44:28,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716895276] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:28,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:28,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-19 14:44:28,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867543768] [2021-10-19 14:44:28,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-19 14:44:28,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:28,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-19 14:44:28,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-19 14:44:28,754 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 155 [2021-10-19 14:44:28,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 132 transitions, 273 flow. Second operand has 6 states, 6 states have (on average 136.5) internal successors, (819), 6 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:28,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 155 [2021-10-19 14:44:28,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:28,803 INFO L129 PetriNetUnfolder]: 1/161 cut-off events. [2021-10-19 14:44:28,804 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:44:28,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 161 events. 1/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 343 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 146. Up to 14 conditions per place. [2021-10-19 14:44:28,805 INFO L132 encePairwiseOnDemand]: 150/155 looper letters, 11 selfloop transitions, 4 changer transitions 0/131 dead transitions. [2021-10-19 14:44:28,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 131 transitions, 301 flow [2021-10-19 14:44:28,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-19 14:44:28,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-19 14:44:28,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 826 transitions. [2021-10-19 14:44:28,808 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8881720430107527 [2021-10-19 14:44:28,808 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 826 transitions. [2021-10-19 14:44:28,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 826 transitions. [2021-10-19 14:44:28,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:28,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 826 transitions. [2021-10-19 14:44:28,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.66666666666666) internal successors, (826), 6 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,812 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,812 INFO L186 Difference]: Start difference. First operand has 136 places, 132 transitions, 273 flow. Second operand 6 states and 826 transitions. [2021-10-19 14:44:28,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 131 transitions, 301 flow [2021-10-19 14:44:28,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 131 transitions, 297 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:44:28,814 INFO L242 Difference]: Finished difference. Result has 138 places, 131 transitions, 275 flow [2021-10-19 14:44:28,814 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=138, PETRI_TRANSITIONS=131} [2021-10-19 14:44:28,814 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -5 predicate places. [2021-10-19 14:44:28,814 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 131 transitions, 275 flow [2021-10-19 14:44:28,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.5) internal successors, (819), 6 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,815 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:28,817 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] [2021-10-19 14:44:28,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-19 14:44:28,817 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:28,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:28,818 INFO L82 PathProgramCache]: Analyzing trace with hash 435399388, now seen corresponding path program 1 times [2021-10-19 14:44:28,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:28,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014127781] [2021-10-19 14:44:28,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:28,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:28,838 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 14:44:28,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:28,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014127781] [2021-10-19 14:44:28,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014127781] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:28,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:28,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:28,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795050400] [2021-10-19 14:44:28,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:28,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:28,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:28,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:28,840 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 155 [2021-10-19 14:44:28,841 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 131 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,841 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:28,841 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 155 [2021-10-19 14:44:28,841 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:28,857 INFO L129 PetriNetUnfolder]: 1/159 cut-off events. [2021-10-19 14:44:28,857 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:44:28,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 159 events. 1/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 334 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 133. Up to 5 conditions per place. [2021-10-19 14:44:28,858 INFO L132 encePairwiseOnDemand]: 153/155 looper letters, 5 selfloop transitions, 1 changer transitions 0/130 dead transitions. [2021-10-19 14:44:28,858 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 130 transitions, 285 flow [2021-10-19 14:44:28,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:28,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:28,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 439 transitions. [2021-10-19 14:44:28,859 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9440860215053763 [2021-10-19 14:44:28,859 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 439 transitions. [2021-10-19 14:44:28,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 439 transitions. [2021-10-19 14:44:28,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:28,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 439 transitions. [2021-10-19 14:44:28,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,861 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,861 INFO L186 Difference]: Start difference. First operand has 138 places, 131 transitions, 275 flow. Second operand 3 states and 439 transitions. [2021-10-19 14:44:28,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 130 transitions, 285 flow [2021-10-19 14:44:28,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 130 transitions, 278 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-19 14:44:28,863 INFO L242 Difference]: Finished difference. Result has 135 places, 130 transitions, 268 flow [2021-10-19 14:44:28,864 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=135, PETRI_TRANSITIONS=130} [2021-10-19 14:44:28,864 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -8 predicate places. [2021-10-19 14:44:28,864 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 130 transitions, 268 flow [2021-10-19 14:44:28,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,864 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:28,864 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] [2021-10-19 14:44:28,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-19 14:44:28,865 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:28,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:28,866 INFO L82 PathProgramCache]: Analyzing trace with hash -706744054, now seen corresponding path program 1 times [2021-10-19 14:44:28,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:28,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766528461] [2021-10-19 14:44:28,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:28,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:28,897 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 14:44:28,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:28,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766528461] [2021-10-19 14:44:28,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766528461] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:28,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:28,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:28,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124299312] [2021-10-19 14:44:28,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:28,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:28,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:28,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:28,900 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 155 [2021-10-19 14:44:28,900 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 130 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:28,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 155 [2021-10-19 14:44:28,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:28,926 INFO L129 PetriNetUnfolder]: 0/186 cut-off events. [2021-10-19 14:44:28,926 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:44:28,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 186 events. 0/186 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 479 event pairs, 0 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-10-19 14:44:28,928 INFO L132 encePairwiseOnDemand]: 153/155 looper letters, 3 selfloop transitions, 1 changer transitions 0/129 dead transitions. [2021-10-19 14:44:28,928 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 129 transitions, 274 flow [2021-10-19 14:44:28,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:28,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:28,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2021-10-19 14:44:28,929 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9591397849462365 [2021-10-19 14:44:28,929 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2021-10-19 14:44:28,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2021-10-19 14:44:28,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:28,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2021-10-19 14:44:28,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,931 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,931 INFO L186 Difference]: Start difference. First operand has 135 places, 130 transitions, 268 flow. Second operand 3 states and 446 transitions. [2021-10-19 14:44:28,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 129 transitions, 274 flow [2021-10-19 14:44:28,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 129 transitions, 273 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:44:28,933 INFO L242 Difference]: Finished difference. Result has 135 places, 129 transitions, 267 flow [2021-10-19 14:44:28,934 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=267, PETRI_PLACES=135, PETRI_TRANSITIONS=129} [2021-10-19 14:44:28,934 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -8 predicate places. [2021-10-19 14:44:28,935 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 129 transitions, 267 flow [2021-10-19 14:44:28,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,935 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:28,935 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] [2021-10-19 14:44:28,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-19 14:44:28,935 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:28,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:28,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1806996254, now seen corresponding path program 1 times [2021-10-19 14:44:28,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:28,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807223361] [2021-10-19 14:44:28,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:28,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:28,957 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 14:44:28,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:28,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807223361] [2021-10-19 14:44:28,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807223361] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:28,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:28,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:28,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854550126] [2021-10-19 14:44:28,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:28,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:28,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:28,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:28,962 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 155 [2021-10-19 14:44:28,963 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 129 transitions, 267 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,963 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:28,963 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 155 [2021-10-19 14:44:28,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:28,993 INFO L129 PetriNetUnfolder]: 16/346 cut-off events. [2021-10-19 14:44:28,994 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:44:28,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 346 events. 16/346 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1598 event pairs, 8 based on Foata normal form. 0/304 useless extension candidates. Maximal degree in co-relation 349. Up to 40 conditions per place. [2021-10-19 14:44:28,995 INFO L132 encePairwiseOnDemand]: 151/155 looper letters, 6 selfloop transitions, 2 changer transitions 0/129 dead transitions. [2021-10-19 14:44:28,995 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 129 transitions, 283 flow [2021-10-19 14:44:28,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:28,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:28,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2021-10-19 14:44:28,997 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9505376344086022 [2021-10-19 14:44:28,997 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 442 transitions. [2021-10-19 14:44:28,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 442 transitions. [2021-10-19 14:44:28,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:28,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 442 transitions. [2021-10-19 14:44:28,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,999 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:28,999 INFO L186 Difference]: Start difference. First operand has 135 places, 129 transitions, 267 flow. Second operand 3 states and 442 transitions. [2021-10-19 14:44:28,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 129 transitions, 283 flow [2021-10-19 14:44:29,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 129 transitions, 282 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:44:29,002 INFO L242 Difference]: Finished difference. Result has 135 places, 129 transitions, 276 flow [2021-10-19 14:44:29,003 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=135, PETRI_TRANSITIONS=129} [2021-10-19 14:44:29,003 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -8 predicate places. [2021-10-19 14:44:29,003 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 129 transitions, 276 flow [2021-10-19 14:44:29,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,004 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:29,004 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] [2021-10-19 14:44:29,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-19 14:44:29,004 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:29,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:29,005 INFO L82 PathProgramCache]: Analyzing trace with hash -605774580, now seen corresponding path program 1 times [2021-10-19 14:44:29,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:29,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871616086] [2021-10-19 14:44:29,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:29,006 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:29,034 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 14:44:29,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:29,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871616086] [2021-10-19 14:44:29,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871616086] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:29,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:29,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:29,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106430362] [2021-10-19 14:44:29,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:29,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:29,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:29,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:29,037 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 155 [2021-10-19 14:44:29,038 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 129 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,038 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:29,038 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 155 [2021-10-19 14:44:29,038 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:29,070 INFO L129 PetriNetUnfolder]: 4/225 cut-off events. [2021-10-19 14:44:29,071 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:44:29,071 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 225 events. 4/225 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 740 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 217. Up to 13 conditions per place. [2021-10-19 14:44:29,072 INFO L132 encePairwiseOnDemand]: 152/155 looper letters, 9 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2021-10-19 14:44:29,072 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 128 transitions, 296 flow [2021-10-19 14:44:29,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:29,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:29,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2021-10-19 14:44:29,073 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9354838709677419 [2021-10-19 14:44:29,073 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2021-10-19 14:44:29,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2021-10-19 14:44:29,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:29,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2021-10-19 14:44:29,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,076 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,076 INFO L186 Difference]: Start difference. First operand has 135 places, 129 transitions, 276 flow. Second operand 3 states and 435 transitions. [2021-10-19 14:44:29,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 128 transitions, 296 flow [2021-10-19 14:44:29,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 128 transitions, 296 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-19 14:44:29,077 INFO L242 Difference]: Finished difference. Result has 136 places, 128 transitions, 278 flow [2021-10-19 14:44:29,078 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=136, PETRI_TRANSITIONS=128} [2021-10-19 14:44:29,078 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -7 predicate places. [2021-10-19 14:44:29,078 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 128 transitions, 278 flow [2021-10-19 14:44:29,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,078 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:29,078 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:44:29,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-19 14:44:29,079 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:29,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:29,079 INFO L82 PathProgramCache]: Analyzing trace with hash 332047664, now seen corresponding path program 1 times [2021-10-19 14:44:29,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:29,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425288131] [2021-10-19 14:44:29,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:29,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:29,106 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 14:44:29,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:29,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425288131] [2021-10-19 14:44:29,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425288131] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:29,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:29,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:29,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983190121] [2021-10-19 14:44:29,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:29,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:29,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:29,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:29,107 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 155 [2021-10-19 14:44:29,108 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 128 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,108 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:29,108 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 155 [2021-10-19 14:44:29,108 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:29,130 INFO L129 PetriNetUnfolder]: 4/224 cut-off events. [2021-10-19 14:44:29,130 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-19 14:44:29,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 224 events. 4/224 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 737 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 217. Up to 12 conditions per place. [2021-10-19 14:44:29,132 INFO L132 encePairwiseOnDemand]: 152/155 looper letters, 8 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2021-10-19 14:44:29,132 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 127 transitions, 296 flow [2021-10-19 14:44:29,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:29,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:29,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 434 transitions. [2021-10-19 14:44:29,133 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2021-10-19 14:44:29,133 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 434 transitions. [2021-10-19 14:44:29,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 434 transitions. [2021-10-19 14:44:29,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:29,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 434 transitions. [2021-10-19 14:44:29,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,135 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,135 INFO L186 Difference]: Start difference. First operand has 136 places, 128 transitions, 278 flow. Second operand 3 states and 434 transitions. [2021-10-19 14:44:29,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 127 transitions, 296 flow [2021-10-19 14:44:29,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 127 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:44:29,138 INFO L242 Difference]: Finished difference. Result has 135 places, 127 transitions, 276 flow [2021-10-19 14:44:29,138 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=135, PETRI_TRANSITIONS=127} [2021-10-19 14:44:29,138 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -8 predicate places. [2021-10-19 14:44:29,138 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 127 transitions, 276 flow [2021-10-19 14:44:29,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,138 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:29,138 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] [2021-10-19 14:44:29,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-19 14:44:29,139 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:29,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:29,139 INFO L82 PathProgramCache]: Analyzing trace with hash 822471217, now seen corresponding path program 1 times [2021-10-19 14:44:29,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:29,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763983266] [2021-10-19 14:44:29,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:29,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:29,164 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 14:44:29,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:29,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763983266] [2021-10-19 14:44:29,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763983266] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:29,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:29,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:29,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98342763] [2021-10-19 14:44:29,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:29,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:29,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:29,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:29,169 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 155 [2021-10-19 14:44:29,170 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 127 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,170 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:29,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 155 [2021-10-19 14:44:29,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:29,193 INFO L129 PetriNetUnfolder]: 4/222 cut-off events. [2021-10-19 14:44:29,193 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-19 14:44:29,193 INFO L84 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 222 events. 4/222 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 725 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 211. Up to 12 conditions per place. [2021-10-19 14:44:29,195 INFO L132 encePairwiseOnDemand]: 153/155 looper letters, 5 selfloop transitions, 1 changer transitions 0/126 dead transitions. [2021-10-19 14:44:29,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 126 transitions, 286 flow [2021-10-19 14:44:29,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:29,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:29,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 439 transitions. [2021-10-19 14:44:29,196 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9440860215053763 [2021-10-19 14:44:29,196 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 439 transitions. [2021-10-19 14:44:29,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 439 transitions. [2021-10-19 14:44:29,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:29,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 439 transitions. [2021-10-19 14:44:29,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,198 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,198 INFO L186 Difference]: Start difference. First operand has 135 places, 127 transitions, 276 flow. Second operand 3 states and 439 transitions. [2021-10-19 14:44:29,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 126 transitions, 286 flow [2021-10-19 14:44:29,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 126 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:44:29,200 INFO L242 Difference]: Finished difference. Result has 134 places, 126 transitions, 272 flow [2021-10-19 14:44:29,200 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2021-10-19 14:44:29,201 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -9 predicate places. [2021-10-19 14:44:29,201 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 272 flow [2021-10-19 14:44:29,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,201 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:29,201 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:44:29,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-19 14:44:29,201 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:29,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:29,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1953706143, now seen corresponding path program 1 times [2021-10-19 14:44:29,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:29,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504174399] [2021-10-19 14:44:29,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:29,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:29,216 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 14:44:29,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:29,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504174399] [2021-10-19 14:44:29,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504174399] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:29,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:29,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:29,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171245987] [2021-10-19 14:44:29,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:29,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:29,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:29,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:29,218 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 155 [2021-10-19 14:44:29,219 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,219 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:29,219 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 155 [2021-10-19 14:44:29,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:29,243 INFO L129 PetriNetUnfolder]: 4/220 cut-off events. [2021-10-19 14:44:29,243 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:44:29,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 220 events. 4/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 711 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 221. Up to 18 conditions per place. [2021-10-19 14:44:29,244 INFO L132 encePairwiseOnDemand]: 152/155 looper letters, 6 selfloop transitions, 2 changer transitions 0/125 dead transitions. [2021-10-19 14:44:29,244 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 125 transitions, 286 flow [2021-10-19 14:44:29,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:29,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:29,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2021-10-19 14:44:29,246 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9483870967741935 [2021-10-19 14:44:29,246 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 441 transitions. [2021-10-19 14:44:29,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 441 transitions. [2021-10-19 14:44:29,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:29,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 441 transitions. [2021-10-19 14:44:29,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,248 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,248 INFO L186 Difference]: Start difference. First operand has 134 places, 126 transitions, 272 flow. Second operand 3 states and 441 transitions. [2021-10-19 14:44:29,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 125 transitions, 286 flow [2021-10-19 14:44:29,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 125 transitions, 285 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:44:29,250 INFO L242 Difference]: Finished difference. Result has 134 places, 125 transitions, 273 flow [2021-10-19 14:44:29,250 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=134, PETRI_TRANSITIONS=125} [2021-10-19 14:44:29,250 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -9 predicate places. [2021-10-19 14:44:29,251 INFO L470 AbstractCegarLoop]: Abstraction has has 134 places, 125 transitions, 273 flow [2021-10-19 14:44:29,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,251 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:29,251 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] [2021-10-19 14:44:29,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-19 14:44:29,251 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:29,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:29,252 INFO L82 PathProgramCache]: Analyzing trace with hash 183132566, now seen corresponding path program 1 times [2021-10-19 14:44:29,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:29,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771504814] [2021-10-19 14:44:29,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:29,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:29,269 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 14:44:29,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:29,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771504814] [2021-10-19 14:44:29,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771504814] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:29,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:29,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:29,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278597745] [2021-10-19 14:44:29,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:29,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:29,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:29,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:29,271 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 155 [2021-10-19 14:44:29,272 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 125 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,272 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:29,272 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 155 [2021-10-19 14:44:29,272 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:29,297 INFO L129 PetriNetUnfolder]: 4/214 cut-off events. [2021-10-19 14:44:29,298 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:44:29,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 214 events. 4/214 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 674 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 231. Up to 22 conditions per place. [2021-10-19 14:44:29,299 INFO L132 encePairwiseOnDemand]: 152/155 looper letters, 5 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2021-10-19 14:44:29,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 124 transitions, 285 flow [2021-10-19 14:44:29,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:29,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:29,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2021-10-19 14:44:29,300 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.946236559139785 [2021-10-19 14:44:29,300 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 440 transitions. [2021-10-19 14:44:29,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 440 transitions. [2021-10-19 14:44:29,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:29,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 440 transitions. [2021-10-19 14:44:29,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,302 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,302 INFO L186 Difference]: Start difference. First operand has 134 places, 125 transitions, 273 flow. Second operand 3 states and 440 transitions. [2021-10-19 14:44:29,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 124 transitions, 285 flow [2021-10-19 14:44:29,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 124 transitions, 281 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:44:29,304 INFO L242 Difference]: Finished difference. Result has 133 places, 124 transitions, 271 flow [2021-10-19 14:44:29,304 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=133, PETRI_TRANSITIONS=124} [2021-10-19 14:44:29,304 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -10 predicate places. [2021-10-19 14:44:29,304 INFO L470 AbstractCegarLoop]: Abstraction has has 133 places, 124 transitions, 271 flow [2021-10-19 14:44:29,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,304 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:29,304 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 14:44:29,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-19 14:44:29,305 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:29,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:29,305 INFO L82 PathProgramCache]: Analyzing trace with hash -836963938, now seen corresponding path program 1 times [2021-10-19 14:44:29,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:29,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840439672] [2021-10-19 14:44:29,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:29,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:29,400 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 14:44:29,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:29,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840439672] [2021-10-19 14:44:29,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840439672] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:29,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:29,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-19 14:44:29,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861546914] [2021-10-19 14:44:29,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-19 14:44:29,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:29,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-19 14:44:29,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-19 14:44:29,404 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 155 [2021-10-19 14:44:29,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 124 transitions, 271 flow. Second operand has 6 states, 6 states have (on average 137.33333333333334) internal successors, (824), 6 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:29,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 155 [2021-10-19 14:44:29,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:29,448 INFO L129 PetriNetUnfolder]: 4/212 cut-off events. [2021-10-19 14:44:29,448 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:44:29,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 212 events. 4/212 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 662 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 218. Up to 12 conditions per place. [2021-10-19 14:44:29,449 INFO L132 encePairwiseOnDemand]: 150/155 looper letters, 10 selfloop transitions, 4 changer transitions 0/123 dead transitions. [2021-10-19 14:44:29,449 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 123 transitions, 297 flow [2021-10-19 14:44:29,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-19 14:44:29,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-19 14:44:29,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 825 transitions. [2021-10-19 14:44:29,450 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8870967741935484 [2021-10-19 14:44:29,450 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 825 transitions. [2021-10-19 14:44:29,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 825 transitions. [2021-10-19 14:44:29,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:29,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 825 transitions. [2021-10-19 14:44:29,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,454 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 155.0) internal successors, (1085), 7 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,454 INFO L186 Difference]: Start difference. First operand has 133 places, 124 transitions, 271 flow. Second operand 6 states and 825 transitions. [2021-10-19 14:44:29,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 123 transitions, 297 flow [2021-10-19 14:44:29,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 123 transitions, 293 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:44:29,456 INFO L242 Difference]: Finished difference. Result has 135 places, 123 transitions, 273 flow [2021-10-19 14:44:29,456 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=273, PETRI_PLACES=135, PETRI_TRANSITIONS=123} [2021-10-19 14:44:29,456 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -8 predicate places. [2021-10-19 14:44:29,456 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 123 transitions, 273 flow [2021-10-19 14:44:29,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.33333333333334) internal successors, (824), 6 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,457 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:29,457 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 14:44:29,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-19 14:44:29,457 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:29,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:29,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1682446726, now seen corresponding path program 1 times [2021-10-19 14:44:29,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:29,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812851607] [2021-10-19 14:44:29,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:29,457 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:29,477 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 14:44:29,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:29,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812851607] [2021-10-19 14:44:29,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812851607] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:29,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:29,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:29,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469838798] [2021-10-19 14:44:29,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:29,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:29,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:29,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:29,479 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 155 [2021-10-19 14:44:29,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 123 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:29,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 155 [2021-10-19 14:44:29,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:29,504 INFO L129 PetriNetUnfolder]: 4/208 cut-off events. [2021-10-19 14:44:29,505 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:44:29,505 INFO L84 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 208 events. 4/208 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 637 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 209. Up to 12 conditions per place. [2021-10-19 14:44:29,505 INFO L132 encePairwiseOnDemand]: 153/155 looper letters, 3 selfloop transitions, 1 changer transitions 0/122 dead transitions. [2021-10-19 14:44:29,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 122 transitions, 279 flow [2021-10-19 14:44:29,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:29,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:29,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2021-10-19 14:44:29,507 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9591397849462365 [2021-10-19 14:44:29,507 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2021-10-19 14:44:29,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2021-10-19 14:44:29,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:29,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2021-10-19 14:44:29,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,508 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,508 INFO L186 Difference]: Start difference. First operand has 135 places, 123 transitions, 273 flow. Second operand 3 states and 446 transitions. [2021-10-19 14:44:29,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 122 transitions, 279 flow [2021-10-19 14:44:29,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 122 transitions, 272 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-19 14:44:29,510 INFO L242 Difference]: Finished difference. Result has 132 places, 122 transitions, 266 flow [2021-10-19 14:44:29,510 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=132, PETRI_TRANSITIONS=122} [2021-10-19 14:44:29,511 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -11 predicate places. [2021-10-19 14:44:29,511 INFO L470 AbstractCegarLoop]: Abstraction has has 132 places, 122 transitions, 266 flow [2021-10-19 14:44:29,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,511 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:44:29,511 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] [2021-10-19 14:44:29,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-19 14:44:29,511 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2021-10-19 14:44:29,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:44:29,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1923610725, now seen corresponding path program 1 times [2021-10-19 14:44:29,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:44:29,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687037937] [2021-10-19 14:44:29,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:44:29,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:44:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:44:29,535 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 14:44:29,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:44:29,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687037937] [2021-10-19 14:44:29,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687037937] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:44:29,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:44:29,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:44:29,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702387933] [2021-10-19 14:44:29,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:44:29,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:44:29,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:44:29,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:44:29,537 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 155 [2021-10-19 14:44:29,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 122 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:44:29,537 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 155 [2021-10-19 14:44:29,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:44:29,551 INFO L129 PetriNetUnfolder]: 4/204 cut-off events. [2021-10-19 14:44:29,551 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:44:29,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 204 events. 4/204 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 625 event pairs, 0 based on Foata normal form. 4/202 useless extension candidates. Maximal degree in co-relation 231. Up to 13 conditions per place. [2021-10-19 14:44:29,552 INFO L132 encePairwiseOnDemand]: 153/155 looper letters, 0 selfloop transitions, 0 changer transitions 121/121 dead transitions. [2021-10-19 14:44:29,552 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 121 transitions, 270 flow [2021-10-19 14:44:29,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:44:29,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:44:29,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2021-10-19 14:44:29,553 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.956989247311828 [2021-10-19 14:44:29,553 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 445 transitions. [2021-10-19 14:44:29,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 445 transitions. [2021-10-19 14:44:29,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:44:29,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 445 transitions. [2021-10-19 14:44:29,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,555 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,555 INFO L186 Difference]: Start difference. First operand has 132 places, 122 transitions, 266 flow. Second operand 3 states and 445 transitions. [2021-10-19 14:44:29,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 121 transitions, 270 flow [2021-10-19 14:44:29,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 121 transitions, 269 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:44:29,556 INFO L242 Difference]: Finished difference. Result has 132 places, 0 transitions, 0 flow [2021-10-19 14:44:29,556 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=132, PETRI_TRANSITIONS=0} [2021-10-19 14:44:29,556 INFO L334 CegarLoopForPetriNet]: 143 programPoint places, -11 predicate places. [2021-10-19 14:44:29,557 INFO L470 AbstractCegarLoop]: Abstraction has has 132 places, 0 transitions, 0 flow [2021-10-19 14:44:29,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:44:29,559 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,559 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,559 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,559 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,560 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,561 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,561 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,561 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,561 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,561 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,561 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,561 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,561 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,561 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,561 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,562 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,562 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:44:29,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-19 14:44:29,568 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-19 14:44:29,568 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-19 14:44:29,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 02:44:29 BasicIcfg [2021-10-19 14:44:29,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-19 14:44:29,571 INFO L168 Benchmark]: Toolchain (without parser) took 2394.64 ms. Allocated memory was 184.5 MB in the beginning and 222.3 MB in the end (delta: 37.7 MB). Free memory was 133.8 MB in the beginning and 163.7 MB in the end (delta: -29.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 8.0 GB. [2021-10-19 14:44:29,571 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 184.5 MB. Free memory was 149.7 MB in the beginning and 149.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-19 14:44:29,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.30 ms. Allocated memory is still 184.5 MB. Free memory was 133.7 MB in the beginning and 160.4 MB in the end (delta: -26.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-19 14:44:29,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.66 ms. Allocated memory is still 184.5 MB. Free memory was 160.4 MB in the beginning and 158.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-19 14:44:29,572 INFO L168 Benchmark]: Boogie Preprocessor took 15.72 ms. Allocated memory is still 184.5 MB. Free memory was 158.3 MB in the beginning and 157.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-19 14:44:29,572 INFO L168 Benchmark]: RCFGBuilder took 286.92 ms. Allocated memory is still 184.5 MB. Free memory was 157.2 MB in the beginning and 142.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-10-19 14:44:29,572 INFO L168 Benchmark]: TraceAbstraction took 1889.19 ms. Allocated memory was 184.5 MB in the beginning and 222.3 MB in the end (delta: 37.7 MB). Free memory was 142.0 MB in the beginning and 163.7 MB in the end (delta: -21.7 MB). Peak memory consumption was 17.1 MB. Max. memory is 8.0 GB. [2021-10-19 14:44:29,573 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 184.5 MB. Free memory was 149.7 MB in the beginning and 149.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 170.30 ms. Allocated memory is still 184.5 MB. Free memory was 133.7 MB in the beginning and 160.4 MB in the end (delta: -26.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 28.66 ms. Allocated memory is still 184.5 MB. Free memory was 160.4 MB in the beginning and 158.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 15.72 ms. Allocated memory is still 184.5 MB. Free memory was 158.3 MB in the beginning and 157.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 286.92 ms. Allocated memory is still 184.5 MB. Free memory was 157.2 MB in the beginning and 142.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1889.19 ms. Allocated memory was 184.5 MB in the beginning and 222.3 MB in the end (delta: 37.7 MB). Free memory was 142.0 MB in the beginning and 163.7 MB in the end (delta: -21.7 MB). Peak memory consumption was 17.1 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: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: 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: 54]: 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: 56]: 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: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: 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 5 procedures, 233 locations, 35 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 7.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1768.9ms, OverallIterations: 18, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 799.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 91.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 118 SDtfs, 26 SDslu, 0 SDs, 0 SdLazy, 157 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 116.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 78.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred in iteration=0, InterpolantAutomatonStates: 60, 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: 41.8ms SsaConstructionTime, 180.3ms SatisfiabilityAnalysisTime, 443.1ms InterpolantComputationTime, 897 NumberOfCodeBlocks, 897 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 879 ConstructedInterpolants, 0 QuantifiedInterpolants, 1133 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 19 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-19 14:44:29,596 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...