/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/parallel-misc-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-5b77e9fc37942d960732eb3788a90132329d3bc4-5b77e9f [2021-10-19 14:41:19,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-19 14:41:19,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-19 14:41:19,907 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-19 14:41:19,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-19 14:41:19,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-19 14:41:19,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-19 14:41:19,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-19 14:41:19,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-19 14:41:19,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-19 14:41:19,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-19 14:41:19,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-19 14:41:19,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-19 14:41:19,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-19 14:41:19,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-19 14:41:19,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-19 14:41:19,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-19 14:41:19,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-19 14:41:19,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-19 14:41:19,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-19 14:41:19,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-19 14:41:19,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-19 14:41:19,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-19 14:41:19,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-19 14:41:19,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-19 14:41:19,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-19 14:41:19,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-19 14:41:19,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-19 14:41:19,959 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 14:41:19,983 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-19 14:41:19,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-19 14:41:19,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-19 14:41:19,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-19 14:41:19,984 INFO L138 SettingsManager]: * Use SBE=true [2021-10-19 14:41:19,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-19 14:41:19,984 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-19 14:41:19,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-19 14:41:19,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-19 14:41:19,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-19 14:41:19,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-19 14:41:19,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-19 14:41:19,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-19 14:41:19,985 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-19 14:41:19,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-19 14:41:19,985 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-19 14:41:19,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-19 14:41:19,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-19 14:41:19,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-19 14:41:19,985 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-19 14:41:19,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-19 14:41:19,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-19 14:41:19,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-19 14:41:19,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-19 14:41:19,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-19 14:41:19,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-19 14:41:19,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-19 14:41:19,986 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-19 14:41:19,986 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-19 14:41:19,986 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-19 14:41:20,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-19 14:41:20,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-19 14:41:20,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-19 14:41:20,215 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-19 14:41:20,215 INFO L275 PluginConnector]: CDTParser initialized [2021-10-19 14:41:20,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c [2021-10-19 14:41:20,275 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/444e6d490/291ca06236d74f34a42a8838cc3badd7/FLAG134866d00 [2021-10-19 14:41:20,578 INFO L306 CDTParser]: Found 1 translation units. [2021-10-19 14:41:20,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3.wvr.c [2021-10-19 14:41:20,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/444e6d490/291ca06236d74f34a42a8838cc3badd7/FLAG134866d00 [2021-10-19 14:41:20,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/444e6d490/291ca06236d74f34a42a8838cc3badd7 [2021-10-19 14:41:21,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-19 14:41:21,002 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-19 14:41:21,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-19 14:41:21,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-19 14:41:21,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-19 14:41:21,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 02:41:21" (1/1) ... [2021-10-19 14:41:21,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bf3f3c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:41:21, skipping insertion in model container [2021-10-19 14:41:21,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 02:41:21" (1/1) ... [2021-10-19 14:41:21,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-19 14:41:21,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-19 14:41:21,194 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/parallel-misc-3.wvr.c[2282,2295] [2021-10-19 14:41:21,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-19 14:41:21,205 INFO L203 MainTranslator]: Completed pre-run [2021-10-19 14:41:21,234 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/parallel-misc-3.wvr.c[2282,2295] [2021-10-19 14:41:21,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-19 14:41:21,247 INFO L208 MainTranslator]: Completed translation [2021-10-19 14:41:21,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:41:21 WrapperNode [2021-10-19 14:41:21,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-19 14:41:21,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-19 14:41:21,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-19 14:41:21,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-19 14:41:21,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:41:21" (1/1) ... [2021-10-19 14:41:21,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:41:21" (1/1) ... [2021-10-19 14:41:21,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-19 14:41:21,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-19 14:41:21,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-19 14:41:21,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-19 14:41:21,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:41:21" (1/1) ... [2021-10-19 14:41:21,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:41:21" (1/1) ... [2021-10-19 14:41:21,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:41:21" (1/1) ... [2021-10-19 14:41:21,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:41:21" (1/1) ... [2021-10-19 14:41:21,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:41:21" (1/1) ... [2021-10-19 14:41:21,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:41:21" (1/1) ... [2021-10-19 14:41:21,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:41:21" (1/1) ... [2021-10-19 14:41:21,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-19 14:41:21,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-19 14:41:21,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-19 14:41:21,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-19 14:41:21,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:41:21" (1/1) ... [2021-10-19 14:41:21,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-19 14:41:21,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-19 14:41:21,346 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 14:41:21,362 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 14:41:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-19 14:41:21,374 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-19 14:41:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-19 14:41:21,375 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-19 14:41:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-19 14:41:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-19 14:41:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-19 14:41:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-19 14:41:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-19 14:41:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-19 14:41:21,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-19 14:41:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-19 14:41:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-19 14:41:21,377 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 14:41:21,724 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-19 14:41:21,724 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-19 14:41:21,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 02:41:21 BoogieIcfgContainer [2021-10-19 14:41:21,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-19 14:41:21,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-19 14:41:21,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-19 14:41:21,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-19 14:41:21,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 02:41:21" (1/3) ... [2021-10-19 14:41:21,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ffea6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 02:41:21, skipping insertion in model container [2021-10-19 14:41:21,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:41:21" (2/3) ... [2021-10-19 14:41:21,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ffea6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 02:41:21, skipping insertion in model container [2021-10-19 14:41:21,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 02:41:21" (3/3) ... [2021-10-19 14:41:21,730 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-misc-3.wvr.c [2021-10-19 14:41:21,733 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-19 14:41:21,733 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-10-19 14:41:21,733 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-19 14:41:21,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,762 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,762 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,762 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,762 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,763 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,763 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,763 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,763 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,763 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,763 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,763 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,764 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,765 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,766 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,766 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,766 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,766 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,766 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,766 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,766 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,766 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,766 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,767 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,767 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,767 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,767 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,767 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,767 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,767 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,767 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,767 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,767 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,768 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,768 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:41:21,776 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-19 14:41:21,803 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-19 14:41:21,807 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 14:41:21,808 INFO L340 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2021-10-19 14:41:21,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 183 places, 187 transitions, 390 flow [2021-10-19 14:41:21,866 INFO L129 PetriNetUnfolder]: 11/185 cut-off events. [2021-10-19 14:41:21,867 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-19 14:41:21,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 185 events. 11/185 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 349 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 117. Up to 4 conditions per place. [2021-10-19 14:41:21,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 183 places, 187 transitions, 390 flow [2021-10-19 14:41:21,879 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 167 places, 170 transitions, 352 flow [2021-10-19 14:41:21,891 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-10-19 14:41:21,891 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:41:21,891 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:21,892 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] [2021-10-19 14:41:21,892 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:21,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:21,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1672393582, now seen corresponding path program 1 times [2021-10-19 14:41:21,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:21,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026340737] [2021-10-19 14:41:21,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:21,902 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:41:22,039 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 14:41:22,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:41:22,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026340737] [2021-10-19 14:41:22,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026340737] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:41:22,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:41:22,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:41:22,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102971070] [2021-10-19 14:41:22,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:41:22,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:41:22,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:41:22,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:41:22,061 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 187 [2021-10-19 14:41:22,067 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 170 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,067 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:41:22,067 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 187 [2021-10-19 14:41:22,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:41:22,155 INFO L129 PetriNetUnfolder]: 8/163 cut-off events. [2021-10-19 14:41:22,156 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-19 14:41:22,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 163 events. 8/163 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 309 event pairs, 0 based on Foata normal form. 13/147 useless extension candidates. Maximal degree in co-relation 123. Up to 16 conditions per place. [2021-10-19 14:41:22,161 INFO L132 encePairwiseOnDemand]: 178/187 looper letters, 15 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2021-10-19 14:41:22,161 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 163 transitions, 372 flow [2021-10-19 14:41:22,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:41:22,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:41:22,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 507 transitions. [2021-10-19 14:41:22,175 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9037433155080213 [2021-10-19 14:41:22,175 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 507 transitions. [2021-10-19 14:41:22,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 507 transitions. [2021-10-19 14:41:22,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:41:22,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 507 transitions. [2021-10-19 14:41:22,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,191 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,193 INFO L186 Difference]: Start difference. First operand has 167 places, 170 transitions, 352 flow. Second operand 3 states and 507 transitions. [2021-10-19 14:41:22,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 163 transitions, 372 flow [2021-10-19 14:41:22,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 163 transitions, 364 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-19 14:41:22,200 INFO L242 Difference]: Finished difference. Result has 160 places, 163 transitions, 334 flow [2021-10-19 14:41:22,202 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=160, PETRI_TRANSITIONS=163} [2021-10-19 14:41:22,202 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -7 predicate places. [2021-10-19 14:41:22,203 INFO L470 AbstractCegarLoop]: Abstraction has has 160 places, 163 transitions, 334 flow [2021-10-19 14:41:22,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,203 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:22,203 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] [2021-10-19 14:41:22,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-19 14:41:22,204 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:22,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:22,204 INFO L82 PathProgramCache]: Analyzing trace with hash 820692413, now seen corresponding path program 1 times [2021-10-19 14:41:22,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:22,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692302990] [2021-10-19 14:41:22,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:22,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:41:22,257 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 14:41:22,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:41:22,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692302990] [2021-10-19 14:41:22,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692302990] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:41:22,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:41:22,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:41:22,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142799235] [2021-10-19 14:41:22,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:41:22,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:41:22,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:41:22,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:41:22,260 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 187 [2021-10-19 14:41:22,261 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 163 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,261 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:41:22,261 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 187 [2021-10-19 14:41:22,261 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:41:22,327 INFO L129 PetriNetUnfolder]: 8/162 cut-off events. [2021-10-19 14:41:22,328 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:41:22,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 162 events. 8/162 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 308 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 159. Up to 16 conditions per place. [2021-10-19 14:41:22,330 INFO L132 encePairwiseOnDemand]: 184/187 looper letters, 15 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2021-10-19 14:41:22,330 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 162 transitions, 366 flow [2021-10-19 14:41:22,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:41:22,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:41:22,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 501 transitions. [2021-10-19 14:41:22,332 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.893048128342246 [2021-10-19 14:41:22,332 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 501 transitions. [2021-10-19 14:41:22,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 501 transitions. [2021-10-19 14:41:22,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:41:22,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 501 transitions. [2021-10-19 14:41:22,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,336 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,336 INFO L186 Difference]: Start difference. First operand has 160 places, 163 transitions, 334 flow. Second operand 3 states and 501 transitions. [2021-10-19 14:41:22,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 162 transitions, 366 flow [2021-10-19 14:41:22,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 162 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:41:22,342 INFO L242 Difference]: Finished difference. Result has 159 places, 162 transitions, 332 flow [2021-10-19 14:41:22,343 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=159, PETRI_TRANSITIONS=162} [2021-10-19 14:41:22,345 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -8 predicate places. [2021-10-19 14:41:22,346 INFO L470 AbstractCegarLoop]: Abstraction has has 159 places, 162 transitions, 332 flow [2021-10-19 14:41:22,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,350 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:22,351 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] [2021-10-19 14:41:22,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-19 14:41:22,351 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:22,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:22,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1369172112, now seen corresponding path program 1 times [2021-10-19 14:41:22,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:22,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782986893] [2021-10-19 14:41:22,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:22,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:41:22,391 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 14:41:22,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:41:22,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782986893] [2021-10-19 14:41:22,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782986893] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:41:22,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:41:22,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:41:22,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707043006] [2021-10-19 14:41:22,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:41:22,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:41:22,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:41:22,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:41:22,396 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 187 [2021-10-19 14:41:22,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 162 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:41:22,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 187 [2021-10-19 14:41:22,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:41:22,429 INFO L129 PetriNetUnfolder]: 8/161 cut-off events. [2021-10-19 14:41:22,429 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:41:22,430 INFO L84 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 161 events. 8/161 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 307 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 147. Up to 10 conditions per place. [2021-10-19 14:41:22,458 INFO L132 encePairwiseOnDemand]: 184/187 looper letters, 9 selfloop transitions, 2 changer transitions 0/161 dead transitions. [2021-10-19 14:41:22,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 161 transitions, 352 flow [2021-10-19 14:41:22,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:41:22,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:41:22,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2021-10-19 14:41:22,459 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9144385026737968 [2021-10-19 14:41:22,459 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2021-10-19 14:41:22,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2021-10-19 14:41:22,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:41:22,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2021-10-19 14:41:22,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,462 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,462 INFO L186 Difference]: Start difference. First operand has 159 places, 162 transitions, 332 flow. Second operand 3 states and 513 transitions. [2021-10-19 14:41:22,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 161 transitions, 352 flow [2021-10-19 14:41:22,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 161 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:41:22,465 INFO L242 Difference]: Finished difference. Result has 158 places, 161 transitions, 330 flow [2021-10-19 14:41:22,465 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=158, PETRI_TRANSITIONS=161} [2021-10-19 14:41:22,465 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -9 predicate places. [2021-10-19 14:41:22,466 INFO L470 AbstractCegarLoop]: Abstraction has has 158 places, 161 transitions, 330 flow [2021-10-19 14:41:22,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,466 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:22,466 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] [2021-10-19 14:41:22,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-19 14:41:22,466 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:22,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:22,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1690250924, now seen corresponding path program 1 times [2021-10-19 14:41:22,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:22,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000248725] [2021-10-19 14:41:22,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:22,467 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:41:22,508 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 14:41:22,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:41:22,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000248725] [2021-10-19 14:41:22,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000248725] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:41:22,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:41:22,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:41:22,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246028058] [2021-10-19 14:41:22,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:41:22,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:41:22,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:41:22,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:41:22,514 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 187 [2021-10-19 14:41:22,515 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 161 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,515 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:41:22,516 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 187 [2021-10-19 14:41:22,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:41:22,542 INFO L129 PetriNetUnfolder]: 8/160 cut-off events. [2021-10-19 14:41:22,542 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:41:22,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 160 events. 8/160 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 305 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 141. Up to 10 conditions per place. [2021-10-19 14:41:22,544 INFO L132 encePairwiseOnDemand]: 184/187 looper letters, 9 selfloop transitions, 2 changer transitions 0/160 dead transitions. [2021-10-19 14:41:22,544 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 160 transitions, 350 flow [2021-10-19 14:41:22,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:41:22,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:41:22,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2021-10-19 14:41:22,546 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9144385026737968 [2021-10-19 14:41:22,547 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2021-10-19 14:41:22,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2021-10-19 14:41:22,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:41:22,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2021-10-19 14:41:22,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,549 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,550 INFO L186 Difference]: Start difference. First operand has 158 places, 161 transitions, 330 flow. Second operand 3 states and 513 transitions. [2021-10-19 14:41:22,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 160 transitions, 350 flow [2021-10-19 14:41:22,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 160 transitions, 346 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:41:22,553 INFO L242 Difference]: Finished difference. Result has 157 places, 160 transitions, 328 flow [2021-10-19 14:41:22,553 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=157, PETRI_TRANSITIONS=160} [2021-10-19 14:41:22,553 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -10 predicate places. [2021-10-19 14:41:22,553 INFO L470 AbstractCegarLoop]: Abstraction has has 157 places, 160 transitions, 328 flow [2021-10-19 14:41:22,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,554 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:22,554 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 14:41:22,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-19 14:41:22,555 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:22,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:22,555 INFO L82 PathProgramCache]: Analyzing trace with hash -2096409147, now seen corresponding path program 1 times [2021-10-19 14:41:22,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:22,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244758120] [2021-10-19 14:41:22,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:22,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:41:22,599 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 14:41:22,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:41:22,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244758120] [2021-10-19 14:41:22,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244758120] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:41:22,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:41:22,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:41:22,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270189048] [2021-10-19 14:41:22,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:41:22,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:41:22,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:41:22,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:41:22,602 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 187 [2021-10-19 14:41:22,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 160 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:41:22,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 187 [2021-10-19 14:41:22,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:41:22,627 INFO L129 PetriNetUnfolder]: 8/160 cut-off events. [2021-10-19 14:41:22,627 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:41:22,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 160 events. 8/160 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 309 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 132. Up to 6 conditions per place. [2021-10-19 14:41:22,629 INFO L132 encePairwiseOnDemand]: 184/187 looper letters, 6 selfloop transitions, 2 changer transitions 0/160 dead transitions. [2021-10-19 14:41:22,629 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 160 transitions, 344 flow [2021-10-19 14:41:22,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:41:22,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:41:22,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 519 transitions. [2021-10-19 14:41:22,631 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9251336898395722 [2021-10-19 14:41:22,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 519 transitions. [2021-10-19 14:41:22,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 519 transitions. [2021-10-19 14:41:22,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:41:22,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 519 transitions. [2021-10-19 14:41:22,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,634 INFO L186 Difference]: Start difference. First operand has 157 places, 160 transitions, 328 flow. Second operand 3 states and 519 transitions. [2021-10-19 14:41:22,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 160 transitions, 344 flow [2021-10-19 14:41:22,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 160 transitions, 340 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:41:22,637 INFO L242 Difference]: Finished difference. Result has 157 places, 160 transitions, 332 flow [2021-10-19 14:41:22,637 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=157, PETRI_TRANSITIONS=160} [2021-10-19 14:41:22,637 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -10 predicate places. [2021-10-19 14:41:22,637 INFO L470 AbstractCegarLoop]: Abstraction has has 157 places, 160 transitions, 332 flow [2021-10-19 14:41:22,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,638 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:22,638 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 14:41:22,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-19 14:41:22,638 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:22,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:22,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1004960537, now seen corresponding path program 1 times [2021-10-19 14:41:22,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:22,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440810442] [2021-10-19 14:41:22,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:22,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:41:22,660 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 14:41:22,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:41:22,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440810442] [2021-10-19 14:41:22,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440810442] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:41:22,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:41:22,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:41:22,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471371967] [2021-10-19 14:41:22,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:41:22,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:41:22,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:41:22,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:41:22,662 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 187 [2021-10-19 14:41:22,662 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 160 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,662 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:41:22,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 187 [2021-10-19 14:41:22,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:41:22,691 INFO L129 PetriNetUnfolder]: 8/177 cut-off events. [2021-10-19 14:41:22,691 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-19 14:41:22,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 177 events. 8/177 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 372 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 143. Up to 7 conditions per place. [2021-10-19 14:41:22,693 INFO L132 encePairwiseOnDemand]: 181/187 looper letters, 9 selfloop transitions, 3 changer transitions 0/158 dead transitions. [2021-10-19 14:41:22,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 158 transitions, 352 flow [2021-10-19 14:41:22,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:41:22,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:41:22,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 507 transitions. [2021-10-19 14:41:22,694 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9037433155080213 [2021-10-19 14:41:22,694 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 507 transitions. [2021-10-19 14:41:22,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 507 transitions. [2021-10-19 14:41:22,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:41:22,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 507 transitions. [2021-10-19 14:41:22,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,697 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,697 INFO L186 Difference]: Start difference. First operand has 157 places, 160 transitions, 332 flow. Second operand 3 states and 507 transitions. [2021-10-19 14:41:22,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 158 transitions, 352 flow [2021-10-19 14:41:22,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 158 transitions, 350 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:41:22,700 INFO L242 Difference]: Finished difference. Result has 156 places, 158 transitions, 337 flow [2021-10-19 14:41:22,700 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=337, PETRI_PLACES=156, PETRI_TRANSITIONS=158} [2021-10-19 14:41:22,700 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -11 predicate places. [2021-10-19 14:41:22,700 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 158 transitions, 337 flow [2021-10-19 14:41:22,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,701 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:22,701 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 14:41:22,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-19 14:41:22,701 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:22,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:22,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1460398286, now seen corresponding path program 1 times [2021-10-19 14:41:22,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:22,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614649561] [2021-10-19 14:41:22,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:22,702 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:41:22,738 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 14:41:22,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:41:22,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614649561] [2021-10-19 14:41:22,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614649561] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:41:22,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:41:22,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:41:22,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696705002] [2021-10-19 14:41:22,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:41:22,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:41:22,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:41:22,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:41:22,744 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 187 [2021-10-19 14:41:22,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 158 transitions, 337 flow. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,745 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:41:22,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 187 [2021-10-19 14:41:22,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:41:22,764 INFO L129 PetriNetUnfolder]: 8/177 cut-off events. [2021-10-19 14:41:22,765 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-19 14:41:22,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 177 events. 8/177 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 373 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 139. Up to 6 conditions per place. [2021-10-19 14:41:22,766 INFO L132 encePairwiseOnDemand]: 184/187 looper letters, 6 selfloop transitions, 2 changer transitions 0/158 dead transitions. [2021-10-19 14:41:22,766 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 158 transitions, 353 flow [2021-10-19 14:41:22,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:41:22,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:41:22,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 519 transitions. [2021-10-19 14:41:22,768 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9251336898395722 [2021-10-19 14:41:22,768 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 519 transitions. [2021-10-19 14:41:22,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 519 transitions. [2021-10-19 14:41:22,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:41:22,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 519 transitions. [2021-10-19 14:41:22,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,770 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,770 INFO L186 Difference]: Start difference. First operand has 156 places, 158 transitions, 337 flow. Second operand 3 states and 519 transitions. [2021-10-19 14:41:22,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 158 transitions, 353 flow [2021-10-19 14:41:22,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 158 transitions, 350 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:41:22,773 INFO L242 Difference]: Finished difference. Result has 157 places, 158 transitions, 342 flow [2021-10-19 14:41:22,773 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=157, PETRI_TRANSITIONS=158} [2021-10-19 14:41:22,773 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -10 predicate places. [2021-10-19 14:41:22,774 INFO L470 AbstractCegarLoop]: Abstraction has has 157 places, 158 transitions, 342 flow [2021-10-19 14:41:22,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,774 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:22,774 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] [2021-10-19 14:41:22,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-19 14:41:22,774 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:22,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:22,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1293899557, now seen corresponding path program 1 times [2021-10-19 14:41:22,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:22,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142558495] [2021-10-19 14:41:22,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:22,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:41:22,812 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 14:41:22,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:41:22,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142558495] [2021-10-19 14:41:22,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142558495] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:41:22,813 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:41:22,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:41:22,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622300941] [2021-10-19 14:41:22,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:41:22,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:41:22,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:41:22,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:41:22,815 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 187 [2021-10-19 14:41:22,815 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 158 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,816 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:41:22,816 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 187 [2021-10-19 14:41:22,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:41:22,842 INFO L129 PetriNetUnfolder]: 8/189 cut-off events. [2021-10-19 14:41:22,842 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-19 14:41:22,844 INFO L84 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 189 events. 8/189 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 415 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 157. Up to 7 conditions per place. [2021-10-19 14:41:22,844 INFO L132 encePairwiseOnDemand]: 181/187 looper letters, 9 selfloop transitions, 3 changer transitions 0/156 dead transitions. [2021-10-19 14:41:22,844 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 156 transitions, 362 flow [2021-10-19 14:41:22,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:41:22,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:41:22,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 507 transitions. [2021-10-19 14:41:22,846 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9037433155080213 [2021-10-19 14:41:22,846 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 507 transitions. [2021-10-19 14:41:22,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 507 transitions. [2021-10-19 14:41:22,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:41:22,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 507 transitions. [2021-10-19 14:41:22,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,848 INFO L186 Difference]: Start difference. First operand has 157 places, 158 transitions, 342 flow. Second operand 3 states and 507 transitions. [2021-10-19 14:41:22,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 156 transitions, 362 flow [2021-10-19 14:41:22,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 156 transitions, 360 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:41:22,850 INFO L242 Difference]: Finished difference. Result has 156 places, 156 transitions, 347 flow [2021-10-19 14:41:22,851 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=347, PETRI_PLACES=156, PETRI_TRANSITIONS=156} [2021-10-19 14:41:22,851 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -11 predicate places. [2021-10-19 14:41:22,851 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 156 transitions, 347 flow [2021-10-19 14:41:22,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,851 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:22,851 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] [2021-10-19 14:41:22,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-19 14:41:22,852 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:22,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:22,852 INFO L82 PathProgramCache]: Analyzing trace with hash -2040942766, now seen corresponding path program 1 times [2021-10-19 14:41:22,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:22,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939400973] [2021-10-19 14:41:22,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:22,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:41:22,882 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 14:41:22,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:41:22,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939400973] [2021-10-19 14:41:22,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939400973] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:41:22,882 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:41:22,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:41:22,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23905708] [2021-10-19 14:41:22,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:41:22,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:41:22,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:41:22,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:41:22,884 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 187 [2021-10-19 14:41:22,884 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 156 transitions, 347 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,884 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:41:22,884 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 187 [2021-10-19 14:41:22,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:41:22,909 INFO L129 PetriNetUnfolder]: 8/188 cut-off events. [2021-10-19 14:41:22,909 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-19 14:41:22,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 188 events. 8/188 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 408 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 153. Up to 13 conditions per place. [2021-10-19 14:41:22,911 INFO L132 encePairwiseOnDemand]: 184/187 looper letters, 12 selfloop transitions, 2 changer transitions 0/155 dead transitions. [2021-10-19 14:41:22,911 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 155 transitions, 373 flow [2021-10-19 14:41:22,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:41:22,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:41:22,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 497 transitions. [2021-10-19 14:41:22,912 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8859180035650623 [2021-10-19 14:41:22,912 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 497 transitions. [2021-10-19 14:41:22,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 497 transitions. [2021-10-19 14:41:22,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:41:22,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 497 transitions. [2021-10-19 14:41:22,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,914 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,915 INFO L186 Difference]: Start difference. First operand has 156 places, 156 transitions, 347 flow. Second operand 3 states and 497 transitions. [2021-10-19 14:41:22,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 155 transitions, 373 flow [2021-10-19 14:41:22,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 155 transitions, 370 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:41:22,918 INFO L242 Difference]: Finished difference. Result has 156 places, 155 transitions, 346 flow [2021-10-19 14:41:22,918 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=156, PETRI_TRANSITIONS=155} [2021-10-19 14:41:22,919 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -11 predicate places. [2021-10-19 14:41:22,919 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 155 transitions, 346 flow [2021-10-19 14:41:22,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,919 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:22,919 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 14:41:22,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-19 14:41:22,920 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:22,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:22,920 INFO L82 PathProgramCache]: Analyzing trace with hash -769244711, now seen corresponding path program 1 times [2021-10-19 14:41:22,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:22,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006821201] [2021-10-19 14:41:22,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:22,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:41:22,957 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 14:41:22,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:41:22,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006821201] [2021-10-19 14:41:22,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006821201] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:41:22,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:41:22,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:41:22,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187763424] [2021-10-19 14:41:22,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:41:22,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:41:22,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:41:22,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:41:22,960 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 187 [2021-10-19 14:41:22,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 155 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:22,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:41:22,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 187 [2021-10-19 14:41:22,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:41:23,046 INFO L129 PetriNetUnfolder]: 69/529 cut-off events. [2021-10-19 14:41:23,046 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-10-19 14:41:23,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 529 events. 69/529 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2775 event pairs, 6 based on Foata normal form. 4/455 useless extension candidates. Maximal degree in co-relation 584. Up to 63 conditions per place. [2021-10-19 14:41:23,050 INFO L132 encePairwiseOnDemand]: 175/187 looper letters, 12 selfloop transitions, 8 changer transitions 3/160 dead transitions. [2021-10-19 14:41:23,050 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 160 transitions, 398 flow [2021-10-19 14:41:23,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:41:23,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:41:23,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 510 transitions. [2021-10-19 14:41:23,051 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9090909090909091 [2021-10-19 14:41:23,051 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 510 transitions. [2021-10-19 14:41:23,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 510 transitions. [2021-10-19 14:41:23,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:41:23,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 510 transitions. [2021-10-19 14:41:23,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,053 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,053 INFO L186 Difference]: Start difference. First operand has 156 places, 155 transitions, 346 flow. Second operand 3 states and 510 transitions. [2021-10-19 14:41:23,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 160 transitions, 398 flow [2021-10-19 14:41:23,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 160 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:41:23,058 INFO L242 Difference]: Finished difference. Result has 157 places, 157 transitions, 393 flow [2021-10-19 14:41:23,059 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=393, PETRI_PLACES=157, PETRI_TRANSITIONS=157} [2021-10-19 14:41:23,059 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -10 predicate places. [2021-10-19 14:41:23,059 INFO L470 AbstractCegarLoop]: Abstraction has has 157 places, 157 transitions, 393 flow [2021-10-19 14:41:23,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,059 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:23,059 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 14:41:23,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-19 14:41:23,059 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:23,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:23,060 INFO L82 PathProgramCache]: Analyzing trace with hash -149777408, now seen corresponding path program 1 times [2021-10-19 14:41:23,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:23,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478911251] [2021-10-19 14:41:23,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:23,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:41:23,157 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 14:41:23,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:41:23,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478911251] [2021-10-19 14:41:23,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478911251] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:41:23,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:41:23,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-19 14:41:23,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538090930] [2021-10-19 14:41:23,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-19 14:41:23,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:41:23,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-19 14:41:23,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-19 14:41:23,160 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 187 [2021-10-19 14:41:23,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 157 transitions, 393 flow. Second operand has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,161 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:41:23,161 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 187 [2021-10-19 14:41:23,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:41:23,225 INFO L129 PetriNetUnfolder]: 48/459 cut-off events. [2021-10-19 14:41:23,225 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-10-19 14:41:23,227 INFO L84 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 459 events. 48/459 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2246 event pairs, 2 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 567. Up to 50 conditions per place. [2021-10-19 14:41:23,228 INFO L132 encePairwiseOnDemand]: 182/187 looper letters, 11 selfloop transitions, 4 changer transitions 0/156 dead transitions. [2021-10-19 14:41:23,228 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 156 transitions, 421 flow [2021-10-19 14:41:23,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-19 14:41:23,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-19 14:41:23,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 982 transitions. [2021-10-19 14:41:23,230 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.875222816399287 [2021-10-19 14:41:23,230 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 982 transitions. [2021-10-19 14:41:23,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 982 transitions. [2021-10-19 14:41:23,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:41:23,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 982 transitions. [2021-10-19 14:41:23,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.66666666666666) internal successors, (982), 6 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,234 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,234 INFO L186 Difference]: Start difference. First operand has 157 places, 157 transitions, 393 flow. Second operand 6 states and 982 transitions. [2021-10-19 14:41:23,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 156 transitions, 421 flow [2021-10-19 14:41:23,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 156 transitions, 405 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:41:23,237 INFO L242 Difference]: Finished difference. Result has 156 places, 156 transitions, 383 flow [2021-10-19 14:41:23,237 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=383, PETRI_PLACES=156, PETRI_TRANSITIONS=156} [2021-10-19 14:41:23,237 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -11 predicate places. [2021-10-19 14:41:23,237 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 156 transitions, 383 flow [2021-10-19 14:41:23,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 162.5) internal successors, (975), 6 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,238 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:23,238 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:41:23,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-19 14:41:23,238 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:23,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:23,238 INFO L82 PathProgramCache]: Analyzing trace with hash -267375137, now seen corresponding path program 1 times [2021-10-19 14:41:23,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:23,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697879089] [2021-10-19 14:41:23,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:23,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:41:23,253 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 14:41:23,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:41:23,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697879089] [2021-10-19 14:41:23,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697879089] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:41:23,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:41:23,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:41:23,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492895617] [2021-10-19 14:41:23,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:41:23,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:41:23,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:41:23,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:41:23,254 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 187 [2021-10-19 14:41:23,255 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 156 transitions, 383 flow. Second operand has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,255 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:41:23,255 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 187 [2021-10-19 14:41:23,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:41:23,308 INFO L129 PetriNetUnfolder]: 70/573 cut-off events. [2021-10-19 14:41:23,308 INFO L130 PetriNetUnfolder]: For 40/48 co-relation queries the response was YES. [2021-10-19 14:41:23,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 573 events. 70/573 cut-off events. For 40/48 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3159 event pairs, 6 based on Foata normal form. 0/498 useless extension candidates. Maximal degree in co-relation 695. Up to 75 conditions per place. [2021-10-19 14:41:23,312 INFO L132 encePairwiseOnDemand]: 181/187 looper letters, 21 selfloop transitions, 6 changer transitions 0/160 dead transitions. [2021-10-19 14:41:23,313 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 160 transitions, 449 flow [2021-10-19 14:41:23,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:41:23,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:41:23,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2021-10-19 14:41:23,314 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8894830659536542 [2021-10-19 14:41:23,314 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 499 transitions. [2021-10-19 14:41:23,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 499 transitions. [2021-10-19 14:41:23,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:41:23,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 499 transitions. [2021-10-19 14:41:23,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,316 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,316 INFO L186 Difference]: Start difference. First operand has 156 places, 156 transitions, 383 flow. Second operand 3 states and 499 transitions. [2021-10-19 14:41:23,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 160 transitions, 449 flow [2021-10-19 14:41:23,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 160 transitions, 442 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-10-19 14:41:23,319 INFO L242 Difference]: Finished difference. Result has 156 places, 160 transitions, 422 flow [2021-10-19 14:41:23,319 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=156, PETRI_TRANSITIONS=160} [2021-10-19 14:41:23,320 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -11 predicate places. [2021-10-19 14:41:23,320 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 160 transitions, 422 flow [2021-10-19 14:41:23,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,320 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:23,320 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:41:23,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-19 14:41:23,320 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:23,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:23,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1185385796, now seen corresponding path program 1 times [2021-10-19 14:41:23,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:23,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877259658] [2021-10-19 14:41:23,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:23,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:41:23,334 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 14:41:23,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:41:23,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877259658] [2021-10-19 14:41:23,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877259658] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:41:23,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:41:23,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:41:23,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145131669] [2021-10-19 14:41:23,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:41:23,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:41:23,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:41:23,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:41:23,336 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 187 [2021-10-19 14:41:23,336 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 160 transitions, 422 flow. Second operand has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,336 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:41:23,337 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 187 [2021-10-19 14:41:23,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:41:23,417 INFO L129 PetriNetUnfolder]: 78/660 cut-off events. [2021-10-19 14:41:23,417 INFO L130 PetriNetUnfolder]: For 131/143 co-relation queries the response was YES. [2021-10-19 14:41:23,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 964 conditions, 660 events. 78/660 cut-off events. For 131/143 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3900 event pairs, 3 based on Foata normal form. 0/573 useless extension candidates. Maximal degree in co-relation 751. Up to 79 conditions per place. [2021-10-19 14:41:23,421 INFO L132 encePairwiseOnDemand]: 181/187 looper letters, 24 selfloop transitions, 6 changer transitions 0/164 dead transitions. [2021-10-19 14:41:23,421 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 164 transitions, 498 flow [2021-10-19 14:41:23,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:41:23,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:41:23,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2021-10-19 14:41:23,422 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8894830659536542 [2021-10-19 14:41:23,422 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 499 transitions. [2021-10-19 14:41:23,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 499 transitions. [2021-10-19 14:41:23,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:41:23,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 499 transitions. [2021-10-19 14:41:23,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,424 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,425 INFO L186 Difference]: Start difference. First operand has 156 places, 160 transitions, 422 flow. Second operand 3 states and 499 transitions. [2021-10-19 14:41:23,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 164 transitions, 498 flow [2021-10-19 14:41:23,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 164 transitions, 482 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-10-19 14:41:23,428 INFO L242 Difference]: Finished difference. Result has 158 places, 164 transitions, 456 flow [2021-10-19 14:41:23,428 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=456, PETRI_PLACES=158, PETRI_TRANSITIONS=164} [2021-10-19 14:41:23,428 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -9 predicate places. [2021-10-19 14:41:23,428 INFO L470 AbstractCegarLoop]: Abstraction has has 158 places, 164 transitions, 456 flow [2021-10-19 14:41:23,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,428 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:23,429 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] [2021-10-19 14:41:23,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-19 14:41:23,429 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:23,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:23,429 INFO L82 PathProgramCache]: Analyzing trace with hash 2057776408, now seen corresponding path program 1 times [2021-10-19 14:41:23,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:23,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86784929] [2021-10-19 14:41:23,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:23,429 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:41:23,450 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 14:41:23,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:41:23,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86784929] [2021-10-19 14:41:23,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86784929] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:41:23,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:41:23,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-19 14:41:23,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569880924] [2021-10-19 14:41:23,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:41:23,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:41:23,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:41:23,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:41:23,452 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 187 [2021-10-19 14:41:23,453 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 164 transitions, 456 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,453 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:41:23,453 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 187 [2021-10-19 14:41:23,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:41:23,521 INFO L129 PetriNetUnfolder]: 121/876 cut-off events. [2021-10-19 14:41:23,521 INFO L130 PetriNetUnfolder]: For 199/199 co-relation queries the response was YES. [2021-10-19 14:41:23,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1281 conditions, 876 events. 121/876 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4956 event pairs, 2 based on Foata normal form. 0/758 useless extension candidates. Maximal degree in co-relation 1213. Up to 91 conditions per place. [2021-10-19 14:41:23,527 INFO L132 encePairwiseOnDemand]: 184/187 looper letters, 7 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2021-10-19 14:41:23,527 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 166 transitions, 478 flow [2021-10-19 14:41:23,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:41:23,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:41:23,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2021-10-19 14:41:23,543 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9376114081996435 [2021-10-19 14:41:23,543 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions. [2021-10-19 14:41:23,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions. [2021-10-19 14:41:23,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:41:23,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions. [2021-10-19 14:41:23,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,546 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,546 INFO L186 Difference]: Start difference. First operand has 158 places, 164 transitions, 456 flow. Second operand 3 states and 526 transitions. [2021-10-19 14:41:23,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 166 transitions, 478 flow [2021-10-19 14:41:23,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 166 transitions, 458 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-10-19 14:41:23,549 INFO L242 Difference]: Finished difference. Result has 159 places, 165 transitions, 448 flow [2021-10-19 14:41:23,549 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=448, PETRI_PLACES=159, PETRI_TRANSITIONS=165} [2021-10-19 14:41:23,550 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -8 predicate places. [2021-10-19 14:41:23,550 INFO L470 AbstractCegarLoop]: Abstraction has has 159 places, 165 transitions, 448 flow [2021-10-19 14:41:23,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,550 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:23,550 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] [2021-10-19 14:41:23,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-19 14:41:23,550 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:23,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:23,551 INFO L82 PathProgramCache]: Analyzing trace with hash -2100112086, now seen corresponding path program 1 times [2021-10-19 14:41:23,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:23,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66896454] [2021-10-19 14:41:23,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:23,551 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:41:23,568 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 14:41:23,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:41:23,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66896454] [2021-10-19 14:41:23,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66896454] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:41:23,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:41:23,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-19 14:41:23,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287624031] [2021-10-19 14:41:23,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:41:23,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:41:23,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:41:23,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:41:23,570 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 187 [2021-10-19 14:41:23,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 165 transitions, 448 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:41:23,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 187 [2021-10-19 14:41:23,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:41:23,646 INFO L129 PetriNetUnfolder]: 130/957 cut-off events. [2021-10-19 14:41:23,646 INFO L130 PetriNetUnfolder]: For 146/146 co-relation queries the response was YES. [2021-10-19 14:41:23,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1436 conditions, 957 events. 130/957 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 6202 event pairs, 19 based on Foata normal form. 0/830 useless extension candidates. Maximal degree in co-relation 1366. Up to 92 conditions per place. [2021-10-19 14:41:23,653 INFO L132 encePairwiseOnDemand]: 184/187 looper letters, 7 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2021-10-19 14:41:23,653 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 167 transitions, 470 flow [2021-10-19 14:41:23,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:41:23,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:41:23,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2021-10-19 14:41:23,655 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9376114081996435 [2021-10-19 14:41:23,655 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions. [2021-10-19 14:41:23,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions. [2021-10-19 14:41:23,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:41:23,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions. [2021-10-19 14:41:23,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,657 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 187.0) internal successors, (748), 4 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,657 INFO L186 Difference]: Start difference. First operand has 159 places, 165 transitions, 448 flow. Second operand 3 states and 526 transitions. [2021-10-19 14:41:23,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 167 transitions, 470 flow [2021-10-19 14:41:23,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 167 transitions, 468 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:41:23,660 INFO L242 Difference]: Finished difference. Result has 161 places, 166 transitions, 458 flow [2021-10-19 14:41:23,661 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=161, PETRI_TRANSITIONS=166} [2021-10-19 14:41:23,661 INFO L334 CegarLoopForPetriNet]: 167 programPoint places, -6 predicate places. [2021-10-19 14:41:23,661 INFO L470 AbstractCegarLoop]: Abstraction has has 161 places, 166 transitions, 458 flow [2021-10-19 14:41:23,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:41:23,661 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:41:23,661 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] [2021-10-19 14:41:23,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-19 14:41:23,662 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2021-10-19 14:41:23,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:41:23,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1589578002, now seen corresponding path program 1 times [2021-10-19 14:41:23,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:41:23,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281214272] [2021-10-19 14:41:23,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:41:23,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:41:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-19 14:41:23,669 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-19 14:41:23,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-19 14:41:23,701 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-19 14:41:23,701 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-19 14:41:23,702 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,707 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,708 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,709 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,710 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-19 14:41:23,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-19 14:41:23,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,711 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,712 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:41:23,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-19 14:41:23,717 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-19 14:41:23,717 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-19 14:41:23,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 02:41:23 BasicIcfg [2021-10-19 14:41:23,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-19 14:41:23,759 INFO L168 Benchmark]: Toolchain (without parser) took 2757.06 ms. Allocated memory was 181.4 MB in the beginning and 220.2 MB in the end (delta: 38.8 MB). Free memory was 131.4 MB in the beginning and 191.5 MB in the end (delta: -60.0 MB). Peak memory consumption was 102.7 MB. Max. memory is 8.0 GB. [2021-10-19 14:41:23,759 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 181.4 MB. Free memory is still 147.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-19 14:41:23,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.51 ms. Allocated memory is still 181.4 MB. Free memory was 131.3 MB in the beginning and 156.9 MB in the end (delta: -25.6 MB). Peak memory consumption was 12.0 MB. Max. memory is 8.0 GB. [2021-10-19 14:41:23,760 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.34 ms. Allocated memory is still 181.4 MB. Free memory was 156.3 MB in the beginning and 155.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-19 14:41:23,760 INFO L168 Benchmark]: Boogie Preprocessor took 31.05 ms. Allocated memory is still 181.4 MB. Free memory was 155.1 MB in the beginning and 153.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-19 14:41:23,760 INFO L168 Benchmark]: RCFGBuilder took 406.15 ms. Allocated memory is still 181.4 MB. Free memory was 153.2 MB in the beginning and 134.8 MB in the end (delta: 18.3 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2021-10-19 14:41:23,760 INFO L168 Benchmark]: TraceAbstraction took 2031.66 ms. Allocated memory was 181.4 MB in the beginning and 220.2 MB in the end (delta: 38.8 MB). Free memory was 134.3 MB in the beginning and 191.5 MB in the end (delta: -57.1 MB). Peak memory consumption was 104.3 MB. Max. memory is 8.0 GB. [2021-10-19 14:41:23,761 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 181.4 MB. Free memory is still 147.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 244.51 ms. Allocated memory is still 181.4 MB. Free memory was 131.3 MB in the beginning and 156.9 MB in the end (delta: -25.6 MB). Peak memory consumption was 12.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 39.34 ms. Allocated memory is still 181.4 MB. Free memory was 156.3 MB in the beginning and 155.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.05 ms. Allocated memory is still 181.4 MB. Free memory was 155.1 MB in the beginning and 153.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 406.15 ms. Allocated memory is still 181.4 MB. Free memory was 153.2 MB in the beginning and 134.8 MB in the end (delta: 18.3 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2031.66 ms. Allocated memory was 181.4 MB in the beginning and 220.2 MB in the end (delta: 38.8 MB). Free memory was 134.3 MB in the beginning and 191.5 MB in the end (delta: -57.1 MB). Peak memory consumption was 104.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 66]: the program contains a data race the program contains a data race We found a FailurePath: [L38] 0 int pos; VAL [pos=0] [L39] 0 _Bool d1, d2, g1, g2; VAL [d1=0, d2=0, g1=0, g2=0, pos=0] [L82] 0 pthread_t t1, t2; VAL [d1=0, d2=0, g1=0, g2=0, pos=0] [L85] 0 d1 = 1 VAL [d1=1, d2=0, g1=0, g2=0, pos=0] [L86] 0 d2 = 1 VAL [d1=1, d2=1, g1=0, g2=0, pos=0] [L87] 0 g1 = 1 VAL [d1=1, d2=1, g1=1, g2=0, pos=0] [L88] 0 g2 = 1 VAL [d1=1, d2=1, g1=1, g2=1, pos=0] [L91] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [d1=1, d2=1, g1=1, g2=1, pos=0] [L42] COND TRUE 1 \read(g1) VAL [d1=1, d2=1, g1=1, g2=1, pos=0] [L43] 1 \read(d1) VAL [d1=1, d2=1, g1=1, g2=1, pos=0] [L43] 1 \read(d1) VAL [d1=1, d2=1, g1=1, g2=1, pos=0] [L43] COND TRUE 1 \read(d1) VAL [d1=1, d2=1, g1=1, g2=1, pos=0] [L92] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [d1=1, d2=1, g1=1, g2=1, pos=0] [L64] COND TRUE 2 \read(g2) VAL [d1=1, d2=1, g1=1, g2=1, pos=0] [L65] 2 \read(d2) VAL [d1=1, d2=1, g1=1, g2=1, pos=0] [L65] 2 \read(d2) VAL [d1=1, d2=1, g1=1, g2=1, pos=0] [L65] COND TRUE 2 \read(d2) VAL [d1=1, d2=1, g1=1, g2=1, pos=0] [L66] 2 pos + 2 VAL [d1=1, d2=1, g1=1, g2=1, pos=0] [L45] 1 pos++ VAL [d1=1, d2=1, g1=1, g2=1, pos=1] [L66] 2 pos + 2 VAL [d1=1, d2=1, g1=1, g2=1, pos=1] - UnprovableResult [Line: 42]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 55]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 93]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 96]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 269 locations, 49 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1914.1ms, OverallIterations: 16, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1055.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 71.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 162 SDtfs, 28 SDslu, 0 SDs, 0 SdLazy, 179 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 151.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=458occurred in iteration=15, InterpolantAutomatonStates: 48, 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: 33.7ms SsaConstructionTime, 150.4ms SatisfiabilityAnalysisTime, 368.4ms InterpolantComputationTime, 756 NumberOfCodeBlocks, 756 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 680 ConstructedInterpolants, 0 QuantifiedInterpolants, 933 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 RESULT: Ultimate proved your program to be incorrect! [2021-10-19 14:41:23,795 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...