/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/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 23:03:46,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 23:03:46,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 23:03:46,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-16 23:03:46,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 23:03:46,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 23:03:46,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 23:03:46,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 23:03:46,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 23:03:46,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 23:03:46,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 23:03:46,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 23:03:46,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 23:03:46,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 23:03:46,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 23:03:46,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 23:03:46,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-16 23:03:46,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 23:03:46,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 23:03:46,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 23:03:46,567 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 [2021-10-16 23:03:46,587 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 23:03:46,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 23:03:46,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 23:03:46,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 23:03:46,588 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 23:03:46,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 23:03:46,589 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 23:03:46,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 23:03:46,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 23:03:46,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 23:03:46,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 23:03:46,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 23:03:46,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 23:03:46,589 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 23:03:46,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 23:03:46,589 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 23:03:46,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 23:03:46,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 23:03:46,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 23:03:46,590 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 23:03:46,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 23:03:46,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:03:46,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 23:03:46,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 23:03:46,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 23:03:46,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 23:03:46,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 23:03:46,590 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 23:03:46,590 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-16 23:03:46,591 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 23:03:46,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 23:03:46,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 23:03:46,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 23:03:46,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 23:03:46,789 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 23:03:46,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-10-16 23:03:46,840 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75a65558/9cea50d313f74f06b741bab564953200/FLAG6307359ef [2021-10-16 23:03:47,263 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 23:03:47,263 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-10-16 23:03:47,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75a65558/9cea50d313f74f06b741bab564953200/FLAG6307359ef [2021-10-16 23:03:47,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75a65558/9cea50d313f74f06b741bab564953200 [2021-10-16 23:03:47,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 23:03:47,627 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 23:03:47,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 23:03:47,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 23:03:47,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 23:03:47,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:03:47" (1/1) ... [2021-10-16 23:03:47,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc51147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:47, skipping insertion in model container [2021-10-16 23:03:47,631 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:03:47" (1/1) ... [2021-10-16 23:03:47,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 23:03:47,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 23:03:48,007 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2021-10-16 23:03:48,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:03:48,045 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 23:03:48,100 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2021-10-16 23:03:48,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:03:48,189 INFO L208 MainTranslator]: Completed translation [2021-10-16 23:03:48,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:48 WrapperNode [2021-10-16 23:03:48,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 23:03:48,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 23:03:48,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 23:03:48,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 23:03:48,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:48" (1/1) ... [2021-10-16 23:03:48,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:48" (1/1) ... [2021-10-16 23:03:48,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 23:03:48,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 23:03:48,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 23:03:48,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 23:03:48,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:48" (1/1) ... [2021-10-16 23:03:48,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:48" (1/1) ... [2021-10-16 23:03:48,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:48" (1/1) ... [2021-10-16 23:03:48,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:48" (1/1) ... [2021-10-16 23:03:48,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:48" (1/1) ... [2021-10-16 23:03:48,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:48" (1/1) ... [2021-10-16 23:03:48,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:48" (1/1) ... [2021-10-16 23:03:48,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 23:03:48,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 23:03:48,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 23:03:48,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 23:03:48,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:48" (1/1) ... [2021-10-16 23:03:48,270 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:03:48,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 23:03:48,288 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) [2021-10-16 23:03:48,307 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 [2021-10-16 23:03:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-16 23:03:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 23:03:48,316 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-16 23:03:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 23:03:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 23:03:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-16 23:03:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 23:03:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 23:03:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 23:03:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-16 23:03:48,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-16 23:03:48,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 23:03:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 23:03:48,318 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 23:03:48,702 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 23:03:48,702 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-16 23:03:48,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:03:48 BoogieIcfgContainer [2021-10-16 23:03:48,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 23:03:48,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 23:03:48,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 23:03:48,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 23:03:48,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:03:47" (1/3) ... [2021-10-16 23:03:48,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3f8ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:03:48, skipping insertion in model container [2021-10-16 23:03:48,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:03:48" (2/3) ... [2021-10-16 23:03:48,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3f8ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:03:48, skipping insertion in model container [2021-10-16 23:03:48,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:03:48" (3/3) ... [2021-10-16 23:03:48,710 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2021-10-16 23:03:48,713 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 23:03:48,714 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-10-16 23:03:48,714 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 23:03:48,731 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,731 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,731 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,731 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,731 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,731 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,732 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,732 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,732 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,733 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,748 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,748 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,749 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,749 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,749 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:03:48,752 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-16 23:03:48,779 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 23:03:48,782 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 [2021-10-16 23:03:48,783 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-16 23:03:48,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 117 places, 118 transitions, 244 flow [2021-10-16 23:03:48,819 INFO L129 PetriNetUnfolder]: 4/137 cut-off events. [2021-10-16 23:03:48,819 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:03:48,821 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 137 events. 4/137 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 168 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 82. Up to 3 conditions per place. [2021-10-16 23:03:48,821 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 118 transitions, 244 flow [2021-10-16 23:03:48,824 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 103 transitions, 212 flow [2021-10-16 23:03:48,827 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-10-16 23:03:48,827 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:03:48,828 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:03:48,828 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] [2021-10-16 23:03:48,828 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2021-10-16 23:03:48,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:03:48,832 INFO L82 PathProgramCache]: Analyzing trace with hash 814498401, now seen corresponding path program 1 times [2021-10-16 23:03:48,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:03:48,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275393705] [2021-10-16 23:03:48,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:03:48,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:03:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:03:49,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:03:49,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:03:49,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275393705] [2021-10-16 23:03:49,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275393705] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:03:49,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:03:49,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:03:49,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24564430] [2021-10-16 23:03:49,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:03:49,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:03:49,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:03:49,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:03:49,095 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 118 [2021-10-16 23:03:49,098 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 103 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:49,098 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:03:49,098 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 118 [2021-10-16 23:03:49,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:03:49,138 INFO L129 PetriNetUnfolder]: 2/128 cut-off events. [2021-10-16 23:03:49,138 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:03:49,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 128 events. 2/128 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 202 event pairs, 2 based on Foata normal form. 2/123 useless extension candidates. Maximal degree in co-relation 49. Up to 20 conditions per place. [2021-10-16 23:03:49,140 INFO L132 encePairwiseOnDemand]: 111/118 looper letters, 11 selfloop transitions, 2 changer transitions 17/96 dead transitions. [2021-10-16 23:03:49,140 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 96 transitions, 228 flow [2021-10-16 23:03:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:03:49,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:03:49,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2021-10-16 23:03:49,153 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8361581920903954 [2021-10-16 23:03:49,154 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2021-10-16 23:03:49,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2021-10-16 23:03:49,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:03:49,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2021-10-16 23:03:49,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:49,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:49,169 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:49,171 INFO L186 Difference]: Start difference. First operand has 104 places, 103 transitions, 212 flow. Second operand 3 states and 296 transitions. [2021-10-16 23:03:49,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 96 transitions, 228 flow [2021-10-16 23:03:49,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 96 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:03:49,179 INFO L242 Difference]: Finished difference. Result has 99 places, 79 transitions, 164 flow [2021-10-16 23:03:49,180 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=99, PETRI_TRANSITIONS=79} [2021-10-16 23:03:49,181 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, -5 predicate places. [2021-10-16 23:03:49,181 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 79 transitions, 164 flow [2021-10-16 23:03:49,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:49,182 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:03:49,182 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:03:49,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 23:03:49,182 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2021-10-16 23:03:49,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:03:49,183 INFO L82 PathProgramCache]: Analyzing trace with hash -155794784, now seen corresponding path program 1 times [2021-10-16 23:03:49,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:03:49,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571270682] [2021-10-16 23:03:49,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:03:49,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:03:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:03:49,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:03:49,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:03:49,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571270682] [2021-10-16 23:03:49,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571270682] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:03:49,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:03:49,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:03:49,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030840506] [2021-10-16 23:03:49,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:03:49,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:03:49,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:03:49,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:03:49,309 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 118 [2021-10-16 23:03:49,310 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 79 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:49,310 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:03:49,310 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 118 [2021-10-16 23:03:49,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:03:49,350 INFO L129 PetriNetUnfolder]: 2/91 cut-off events. [2021-10-16 23:03:49,350 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:03:49,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 91 events. 2/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 2 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 78. Up to 15 conditions per place. [2021-10-16 23:03:49,352 INFO L132 encePairwiseOnDemand]: 116/118 looper letters, 9 selfloop transitions, 0 changer transitions 5/78 dead transitions. [2021-10-16 23:03:49,353 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 78 transitions, 184 flow [2021-10-16 23:03:49,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:03:49,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:03:49,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2021-10-16 23:03:49,354 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8135593220338984 [2021-10-16 23:03:49,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 288 transitions. [2021-10-16 23:03:49,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 288 transitions. [2021-10-16 23:03:49,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:03:49,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 288 transitions. [2021-10-16 23:03:49,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:49,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:49,358 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:49,358 INFO L186 Difference]: Start difference. First operand has 99 places, 79 transitions, 164 flow. Second operand 3 states and 288 transitions. [2021-10-16 23:03:49,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 78 transitions, 184 flow [2021-10-16 23:03:49,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 78 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:03:49,361 INFO L242 Difference]: Finished difference. Result has 82 places, 73 transitions, 148 flow [2021-10-16 23:03:49,361 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2021-10-16 23:03:49,361 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, -22 predicate places. [2021-10-16 23:03:49,362 INFO L470 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 148 flow [2021-10-16 23:03:49,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:49,362 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:03:49,362 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:03:49,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 23:03:49,363 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 4 more)] === [2021-10-16 23:03:49,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:03:49,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1354860540, now seen corresponding path program 1 times [2021-10-16 23:03:49,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:03:49,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616877606] [2021-10-16 23:03:49,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:03:49,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:03:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:03:49,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:03:49,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:03:49,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616877606] [2021-10-16 23:03:49,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616877606] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:03:49,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:03:49,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:03:49,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773703779] [2021-10-16 23:03:49,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:03:49,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:03:49,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:03:49,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:03:49,452 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 118 [2021-10-16 23:03:49,453 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:49,453 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:03:49,453 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 118 [2021-10-16 23:03:49,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:03:49,482 INFO L129 PetriNetUnfolder]: 3/90 cut-off events. [2021-10-16 23:03:49,482 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:03:49,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 90 events. 3/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 3 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 106. Up to 15 conditions per place. [2021-10-16 23:03:49,482 INFO L132 encePairwiseOnDemand]: 116/118 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2021-10-16 23:03:49,483 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 72 transitions, 164 flow [2021-10-16 23:03:49,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:03:49,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:03:49,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2021-10-16 23:03:49,484 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.807909604519774 [2021-10-16 23:03:49,484 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2021-10-16 23:03:49,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2021-10-16 23:03:49,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:03:49,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2021-10-16 23:03:49,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:49,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:49,486 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:49,486 INFO L186 Difference]: Start difference. First operand has 82 places, 73 transitions, 148 flow. Second operand 3 states and 286 transitions. [2021-10-16 23:03:49,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 72 transitions, 164 flow [2021-10-16 23:03:49,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 72 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-16 23:03:49,488 INFO L242 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2021-10-16 23:03:49,488 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2021-10-16 23:03:49,488 INFO L334 CegarLoopForPetriNet]: 104 programPoint places, -27 predicate places. [2021-10-16 23:03:49,488 INFO L470 AbstractCegarLoop]: Abstraction has has 77 places, 0 transitions, 0 flow [2021-10-16 23:03:49,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:03:49,490 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:03:49,491 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:03:49,491 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:03:49,491 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:03:49,491 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:03:49,491 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 23:03:49,491 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:03:49,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 23:03:49,496 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 23:03:49,496 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 23:03:49,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:03:49 BasicIcfg [2021-10-16 23:03:49,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 23:03:49,502 INFO L168 Benchmark]: Toolchain (without parser) took 1871.64 ms. Allocated memory was 210.8 MB in the beginning and 334.5 MB in the end (delta: 123.7 MB). Free memory was 182.1 MB in the beginning and 219.8 MB in the end (delta: -37.7 MB). Peak memory consumption was 86.0 MB. Max. memory is 8.0 GB. [2021-10-16 23:03:49,503 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 210.8 MB. Free memory was 170.0 MB in the beginning and 169.9 MB in the end (delta: 122.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:03:49,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 562.93 ms. Allocated memory was 210.8 MB in the beginning and 334.5 MB in the end (delta: 123.7 MB). Free memory was 181.6 MB in the beginning and 260.8 MB in the end (delta: -79.2 MB). Peak memory consumption was 46.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:03:49,504 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.56 ms. Allocated memory is still 334.5 MB. Free memory was 260.8 MB in the beginning and 257.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:03:49,504 INFO L168 Benchmark]: Boogie Preprocessor took 20.90 ms. Allocated memory is still 334.5 MB. Free memory was 257.6 MB in the beginning and 255.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:03:49,505 INFO L168 Benchmark]: RCFGBuilder took 447.04 ms. Allocated memory is still 334.5 MB. Free memory was 255.4 MB in the beginning and 235.0 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-10-16 23:03:49,506 INFO L168 Benchmark]: TraceAbstraction took 792.55 ms. Allocated memory is still 334.5 MB. Free memory was 234.5 MB in the beginning and 219.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. [2021-10-16 23:03:49,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 210.8 MB. Free memory was 170.0 MB in the beginning and 169.9 MB in the end (delta: 122.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 562.93 ms. Allocated memory was 210.8 MB in the beginning and 334.5 MB in the end (delta: 123.7 MB). Free memory was 181.6 MB in the beginning and 260.8 MB in the end (delta: -79.2 MB). Peak memory consumption was 46.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 44.56 ms. Allocated memory is still 334.5 MB. Free memory was 260.8 MB in the beginning and 257.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 20.90 ms. Allocated memory is still 334.5 MB. Free memory was 257.6 MB in the beginning and 255.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 447.04 ms. Allocated memory is still 334.5 MB. Free memory was 255.4 MB in the beginning and 235.0 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 792.55 ms. Allocated memory is still 334.5 MB. Free memory was 234.5 MB in the beginning and 219.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1730]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 124 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 717.9ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 183.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 41.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 34 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 32 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=212occurred in iteration=0, InterpolantAutomatonStates: 9, 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: 14.8ms SsaConstructionTime, 60.9ms SatisfiabilityAnalysisTime, 197.6ms InterpolantComputationTime, 138 NumberOfCodeBlocks, 138 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 135 ConstructedInterpolants, 0 QuantifiedInterpolants, 141 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-16 23:03:49,553 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...