/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_17-ps_add1_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-5b77e9fc37942d960732eb3788a90132329d3bc4-5b77e9f [2021-10-19 14:47:32,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-19 14:47:32,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-19 14:47:32,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-19 14:47:32,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-19 14:47:32,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-19 14:47:32,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-19 14:47:32,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-19 14:47:32,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-19 14:47:32,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-19 14:47:32,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-19 14:47:32,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-19 14:47:32,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-19 14:47:32,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-19 14:47:32,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-19 14:47:32,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-19 14:47:32,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-19 14:47:32,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-19 14:47:32,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-19 14:47:32,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-19 14:47:32,134 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-10-19 14:47:32,160 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-19 14:47:32,160 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-19 14:47:32,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-19 14:47:32,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-19 14:47:32,161 INFO L138 SettingsManager]: * Use SBE=true [2021-10-19 14:47:32,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-19 14:47:32,161 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-19 14:47:32,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-19 14:47:32,161 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-19 14:47:32,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-19 14:47:32,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-19 14:47:32,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-19 14:47:32,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-19 14:47:32,162 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-19 14:47:32,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-19 14:47:32,162 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-19 14:47:32,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-19 14:47:32,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-19 14:47:32,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-19 14:47:32,162 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-19 14:47:32,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-19 14:47:32,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-19 14:47:32,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-19 14:47:32,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-19 14:47:32,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-19 14:47:32,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-19 14:47:32,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-19 14:47:32,163 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-19 14:47:32,163 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-19 14:47:32,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-19 14:47:32,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-19 14:47:32,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-19 14:47:32,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-19 14:47:32,346 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-19 14:47:32,356 INFO L275 PluginConnector]: CDTParser initialized [2021-10-19 14:47:32,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_17-ps_add1_nr.i [2021-10-19 14:47:32,426 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13fd3d02d/397ef8fcab19469894ed37668dbb8385/FLAG811c71cf9 [2021-10-19 14:47:32,795 INFO L306 CDTParser]: Found 1 translation units. [2021-10-19 14:47:32,796 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_17-ps_add1_nr.i [2021-10-19 14:47:32,805 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13fd3d02d/397ef8fcab19469894ed37668dbb8385/FLAG811c71cf9 [2021-10-19 14:47:33,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13fd3d02d/397ef8fcab19469894ed37668dbb8385 [2021-10-19 14:47:33,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-19 14:47:33,184 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-19 14:47:33,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-19 14:47:33,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-19 14:47:33,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-19 14:47:33,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 02:47:33" (1/1) ... [2021-10-19 14:47:33,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19428a73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:33, skipping insertion in model container [2021-10-19 14:47:33,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 02:47:33" (1/1) ... [2021-10-19 14:47:33,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-19 14:47:33,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-19 14:47:33,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-19 14:47:33,478 INFO L203 MainTranslator]: Completed pre-run [2021-10-19 14:47:33,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-19 14:47:33,535 INFO L208 MainTranslator]: Completed translation [2021-10-19 14:47:33,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:33 WrapperNode [2021-10-19 14:47:33,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-19 14:47:33,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-19 14:47:33,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-19 14:47:33,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-19 14:47:33,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:33" (1/1) ... [2021-10-19 14:47:33,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:33" (1/1) ... [2021-10-19 14:47:33,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-19 14:47:33,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-19 14:47:33,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-19 14:47:33,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-19 14:47:33,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:33" (1/1) ... [2021-10-19 14:47:33,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:33" (1/1) ... [2021-10-19 14:47:33,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:33" (1/1) ... [2021-10-19 14:47:33,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:33" (1/1) ... [2021-10-19 14:47:33,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:33" (1/1) ... [2021-10-19 14:47:33,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:33" (1/1) ... [2021-10-19 14:47:33,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:33" (1/1) ... [2021-10-19 14:47:33,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-19 14:47:33,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-19 14:47:33,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-19 14:47:33,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-19 14:47:33,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:33" (1/1) ... [2021-10-19 14:47:33,615 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-19 14:47:33,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-19 14:47:33,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-19 14:47:33,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-19 14:47:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-19 14:47:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-19 14:47:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-19 14:47:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-19 14:47:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-19 14:47:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-19 14:47:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-19 14:47:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-19 14:47:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-19 14:47:33,669 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-19 14:47:33,902 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-19 14:47:33,902 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-19 14:47:33,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 02:47:33 BoogieIcfgContainer [2021-10-19 14:47:33,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-19 14:47:33,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-19 14:47:33,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-19 14:47:33,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-19 14:47:33,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 02:47:33" (1/3) ... [2021-10-19 14:47:33,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1d4bd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 02:47:33, skipping insertion in model container [2021-10-19 14:47:33,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 02:47:33" (2/3) ... [2021-10-19 14:47:33,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1d4bd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 02:47:33, skipping insertion in model container [2021-10-19 14:47:33,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 02:47:33" (3/3) ... [2021-10-19 14:47:33,908 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_17-ps_add1_nr.i [2021-10-19 14:47:33,911 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-19 14:47:33,911 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-19 14:47:33,911 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-19 14:47:33,930 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,930 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,930 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,930 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,931 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,931 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,931 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,931 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,931 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,931 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,932 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,933 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,933 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,933 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,933 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,933 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,933 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,933 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,934 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,934 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,934 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,934 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,934 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,934 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,934 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,934 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,934 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,934 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,935 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,935 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,935 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,935 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,937 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,937 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,937 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,937 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,937 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,937 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,937 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-19 14:47:33,940 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-19 14:47:33,968 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-19 14:47:33,972 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-19 14:47:33,972 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-19 14:47:33,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 77 transitions, 159 flow [2021-10-19 14:47:34,001 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2021-10-19 14:47:34,001 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:47:34,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2021-10-19 14:47:34,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 77 transitions, 159 flow [2021-10-19 14:47:34,007 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 76 transitions, 155 flow [2021-10-19 14:47:34,012 INFO L129 PetriNetUnfolder]: 0/33 cut-off events. [2021-10-19 14:47:34,013 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:47:34,013 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:34,013 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:34,013 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-19 14:47:34,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:34,016 INFO L82 PathProgramCache]: Analyzing trace with hash -788450872, now seen corresponding path program 1 times [2021-10-19 14:47:34,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:34,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973089758] [2021-10-19 14:47:34,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:34,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:34,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:34,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:34,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973089758] [2021-10-19 14:47:34,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973089758] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:34,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:34,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:47:34,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835627648] [2021-10-19 14:47:34,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:47:34,204 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:34,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:47:34,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:47:34,213 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 77 [2021-10-19 14:47:34,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 76 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:34,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 77 [2021-10-19 14:47:34,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:34,272 INFO L129 PetriNetUnfolder]: 45/261 cut-off events. [2021-10-19 14:47:34,272 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-19 14:47:34,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 261 events. 45/261 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1022 event pairs, 12 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 328. Up to 53 conditions per place. [2021-10-19 14:47:34,275 INFO L132 encePairwiseOnDemand]: 69/77 looper letters, 16 selfloop transitions, 6 changer transitions 0/86 dead transitions. [2021-10-19 14:47:34,275 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 86 transitions, 219 flow [2021-10-19 14:47:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:47:34,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:47:34,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2021-10-19 14:47:34,283 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.948051948051948 [2021-10-19 14:47:34,283 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 219 transitions. [2021-10-19 14:47:34,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 219 transitions. [2021-10-19 14:47:34,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:34,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 219 transitions. [2021-10-19 14:47:34,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,291 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,292 INFO L186 Difference]: Start difference. First operand has 77 places, 76 transitions, 155 flow. Second operand 3 states and 219 transitions. [2021-10-19 14:47:34,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 86 transitions, 219 flow [2021-10-19 14:47:34,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 86 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-19 14:47:34,296 INFO L242 Difference]: Finished difference. Result has 80 places, 82 transitions, 206 flow [2021-10-19 14:47:34,297 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=80, PETRI_TRANSITIONS=82} [2021-10-19 14:47:34,298 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 3 predicate places. [2021-10-19 14:47:34,298 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 82 transitions, 206 flow [2021-10-19 14:47:34,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,299 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:34,299 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] [2021-10-19 14:47:34,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-19 14:47:34,299 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-19 14:47:34,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:34,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1512270395, now seen corresponding path program 1 times [2021-10-19 14:47:34,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:34,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553685803] [2021-10-19 14:47:34,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:34,300 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:34,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:34,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:34,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553685803] [2021-10-19 14:47:34,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553685803] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:34,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:34,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:47:34,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648210331] [2021-10-19 14:47:34,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:47:34,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:34,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:47:34,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:47:34,341 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 77 [2021-10-19 14:47:34,341 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 82 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,341 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:34,341 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 77 [2021-10-19 14:47:34,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:34,409 INFO L129 PetriNetUnfolder]: 67/362 cut-off events. [2021-10-19 14:47:34,409 INFO L130 PetriNetUnfolder]: For 90/110 co-relation queries the response was YES. [2021-10-19 14:47:34,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 362 events. 67/362 cut-off events. For 90/110 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1759 event pairs, 20 based on Foata normal form. 3/327 useless extension candidates. Maximal degree in co-relation 562. Up to 102 conditions per place. [2021-10-19 14:47:34,413 INFO L132 encePairwiseOnDemand]: 71/77 looper letters, 23 selfloop transitions, 7 changer transitions 2/92 dead transitions. [2021-10-19 14:47:34,413 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 92 transitions, 306 flow [2021-10-19 14:47:34,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:47:34,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:47:34,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2021-10-19 14:47:34,429 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9090909090909091 [2021-10-19 14:47:34,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 210 transitions. [2021-10-19 14:47:34,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 210 transitions. [2021-10-19 14:47:34,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:34,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 210 transitions. [2021-10-19 14:47:34,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,432 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,432 INFO L186 Difference]: Start difference. First operand has 80 places, 82 transitions, 206 flow. Second operand 3 states and 210 transitions. [2021-10-19 14:47:34,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 92 transitions, 306 flow [2021-10-19 14:47:34,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 92 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:47:34,435 INFO L242 Difference]: Finished difference. Result has 82 places, 86 transitions, 248 flow [2021-10-19 14:47:34,435 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=82, PETRI_TRANSITIONS=86} [2021-10-19 14:47:34,438 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 5 predicate places. [2021-10-19 14:47:34,438 INFO L470 AbstractCegarLoop]: Abstraction has has 82 places, 86 transitions, 248 flow [2021-10-19 14:47:34,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,438 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:34,438 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:34,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-19 14:47:34,439 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-19 14:47:34,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:34,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1699248767, now seen corresponding path program 1 times [2021-10-19 14:47:34,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:34,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838329577] [2021-10-19 14:47:34,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:34,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:34,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:34,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:34,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838329577] [2021-10-19 14:47:34,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838329577] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:34,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:34,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-19 14:47:34,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946932296] [2021-10-19 14:47:34,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:47:34,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:34,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:47:34,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:47:34,507 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 77 [2021-10-19 14:47:34,507 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 86 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,507 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:34,507 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 77 [2021-10-19 14:47:34,507 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:34,574 INFO L129 PetriNetUnfolder]: 64/329 cut-off events. [2021-10-19 14:47:34,574 INFO L130 PetriNetUnfolder]: For 157/175 co-relation queries the response was YES. [2021-10-19 14:47:34,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 637 conditions, 329 events. 64/329 cut-off events. For 157/175 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1577 event pairs, 17 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 606. Up to 100 conditions per place. [2021-10-19 14:47:34,580 INFO L132 encePairwiseOnDemand]: 71/77 looper letters, 22 selfloop transitions, 7 changer transitions 8/97 dead transitions. [2021-10-19 14:47:34,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 97 transitions, 370 flow [2021-10-19 14:47:34,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:47:34,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:47:34,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2021-10-19 14:47:34,585 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9090909090909091 [2021-10-19 14:47:34,586 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 210 transitions. [2021-10-19 14:47:34,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 210 transitions. [2021-10-19 14:47:34,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:34,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 210 transitions. [2021-10-19 14:47:34,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,590 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,590 INFO L186 Difference]: Start difference. First operand has 82 places, 86 transitions, 248 flow. Second operand 3 states and 210 transitions. [2021-10-19 14:47:34,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 97 transitions, 370 flow [2021-10-19 14:47:34,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 97 transitions, 350 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:47:34,597 INFO L242 Difference]: Finished difference. Result has 84 places, 86 transitions, 270 flow [2021-10-19 14:47:34,597 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=84, PETRI_TRANSITIONS=86} [2021-10-19 14:47:34,597 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 7 predicate places. [2021-10-19 14:47:34,597 INFO L470 AbstractCegarLoop]: Abstraction has has 84 places, 86 transitions, 270 flow [2021-10-19 14:47:34,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,597 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:34,598 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:34,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-19 14:47:34,598 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-19 14:47:34,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:34,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1267560151, now seen corresponding path program 1 times [2021-10-19 14:47:34,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:34,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731844283] [2021-10-19 14:47:34,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:34,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:34,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:34,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:34,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731844283] [2021-10-19 14:47:34,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731844283] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:34,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:34,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-19 14:47:34,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312488949] [2021-10-19 14:47:34,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-19 14:47:34,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:34,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-19 14:47:34,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-19 14:47:34,718 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 77 [2021-10-19 14:47:34,718 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 86 transitions, 270 flow. Second operand has 5 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:34,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 77 [2021-10-19 14:47:34,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:34,796 INFO L129 PetriNetUnfolder]: 20/297 cut-off events. [2021-10-19 14:47:34,797 INFO L130 PetriNetUnfolder]: For 126/129 co-relation queries the response was YES. [2021-10-19 14:47:34,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 297 events. 20/297 cut-off events. For 126/129 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1425 event pairs, 2 based on Foata normal form. 1/280 useless extension candidates. Maximal degree in co-relation 475. Up to 28 conditions per place. [2021-10-19 14:47:34,801 INFO L132 encePairwiseOnDemand]: 71/77 looper letters, 10 selfloop transitions, 1 changer transitions 5/89 dead transitions. [2021-10-19 14:47:34,801 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 89 transitions, 306 flow [2021-10-19 14:47:34,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-19 14:47:34,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-19 14:47:34,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 400 transitions. [2021-10-19 14:47:34,807 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8658008658008658 [2021-10-19 14:47:34,807 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 400 transitions. [2021-10-19 14:47:34,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 400 transitions. [2021-10-19 14:47:34,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:34,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 400 transitions. [2021-10-19 14:47:34,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 77.0) internal successors, (539), 7 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,811 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 77.0) internal successors, (539), 7 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,811 INFO L186 Difference]: Start difference. First operand has 84 places, 86 transitions, 270 flow. Second operand 6 states and 400 transitions. [2021-10-19 14:47:34,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 89 transitions, 306 flow [2021-10-19 14:47:34,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 89 transitions, 292 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-19 14:47:34,816 INFO L242 Difference]: Finished difference. Result has 91 places, 84 transitions, 261 flow [2021-10-19 14:47:34,817 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=261, PETRI_PLACES=91, PETRI_TRANSITIONS=84} [2021-10-19 14:47:34,817 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 14 predicate places. [2021-10-19 14:47:34,817 INFO L470 AbstractCegarLoop]: Abstraction has has 91 places, 84 transitions, 261 flow [2021-10-19 14:47:34,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.4) internal successors, (327), 5 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,817 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-19 14:47:34,817 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-19 14:47:34,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-19 14:47:34,818 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-19 14:47:34,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-19 14:47:34,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1242877278, now seen corresponding path program 1 times [2021-10-19 14:47:34,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-19 14:47:34,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79939685] [2021-10-19 14:47:34,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-19 14:47:34,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-19 14:47:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-19 14:47:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-19 14:47:34,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-19 14:47:34,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79939685] [2021-10-19 14:47:34,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79939685] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-19 14:47:34,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-19 14:47:34,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-19 14:47:34,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852376820] [2021-10-19 14:47:34,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-19 14:47:34,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-19 14:47:34,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-19 14:47:34,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-19 14:47:34,881 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 77 [2021-10-19 14:47:34,882 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 84 transitions, 261 flow. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,882 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-19 14:47:34,882 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 77 [2021-10-19 14:47:34,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-19 14:47:34,900 INFO L129 PetriNetUnfolder]: 1/117 cut-off events. [2021-10-19 14:47:34,900 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-10-19 14:47:34,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 117 events. 1/117 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 140 event pairs, 1 based on Foata normal form. 2/119 useless extension candidates. Maximal degree in co-relation 161. Up to 11 conditions per place. [2021-10-19 14:47:34,901 INFO L132 encePairwiseOnDemand]: 73/77 looper letters, 0 selfloop transitions, 0 changer transitions 70/70 dead transitions. [2021-10-19 14:47:34,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 70 transitions, 205 flow [2021-10-19 14:47:34,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-19 14:47:34,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-19 14:47:34,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2021-10-19 14:47:34,902 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.922077922077922 [2021-10-19 14:47:34,902 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 213 transitions. [2021-10-19 14:47:34,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 213 transitions. [2021-10-19 14:47:34,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-19 14:47:34,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 213 transitions. [2021-10-19 14:47:34,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,904 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,904 INFO L186 Difference]: Start difference. First operand has 91 places, 84 transitions, 261 flow. Second operand 3 states and 213 transitions. [2021-10-19 14:47:34,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 70 transitions, 205 flow [2021-10-19 14:47:34,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 70 transitions, 163 flow, removed 12 selfloop flow, removed 11 redundant places. [2021-10-19 14:47:34,905 INFO L242 Difference]: Finished difference. Result has 75 places, 0 transitions, 0 flow [2021-10-19 14:47:34,906 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=77, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=75, PETRI_TRANSITIONS=0} [2021-10-19 14:47:34,906 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, -2 predicate places. [2021-10-19 14:47:34,906 INFO L470 AbstractCegarLoop]: Abstraction has has 75 places, 0 transitions, 0 flow [2021-10-19 14:47:34,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-19 14:47:34,908 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:34,909 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:34,909 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-19 14:47:34,909 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:34,909 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:34,909 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:34,909 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-19 14:47:34,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-19 14:47:34,916 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-19 14:47:34,916 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-19 14:47:34,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 02:47:34 BasicIcfg [2021-10-19 14:47:34,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-19 14:47:34,918 INFO L168 Benchmark]: Toolchain (without parser) took 1733.00 ms. Allocated memory was 168.8 MB in the beginning and 208.7 MB in the end (delta: 39.8 MB). Free memory was 116.4 MB in the beginning and 126.3 MB in the end (delta: -9.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:34,919 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 168.8 MB. Free memory was 134.8 MB in the beginning and 134.7 MB in the end (delta: 98.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-19 14:47:34,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.22 ms. Allocated memory is still 168.8 MB. Free memory was 116.0 MB in the beginning and 128.5 MB in the end (delta: -12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:34,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.22 ms. Allocated memory is still 168.8 MB. Free memory was 128.5 MB in the beginning and 126.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:34,923 INFO L168 Benchmark]: Boogie Preprocessor took 24.06 ms. Allocated memory is still 168.8 MB. Free memory was 126.4 MB in the beginning and 125.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:34,923 INFO L168 Benchmark]: RCFGBuilder took 296.43 ms. Allocated memory is still 168.8 MB. Free memory was 125.3 MB in the beginning and 113.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:34,923 INFO L168 Benchmark]: TraceAbstraction took 1012.64 ms. Allocated memory was 168.8 MB in the beginning and 208.7 MB in the end (delta: 39.8 MB). Free memory was 113.3 MB in the beginning and 126.3 MB in the end (delta: -13.0 MB). Peak memory consumption was 27.4 MB. Max. memory is 8.0 GB. [2021-10-19 14:47:34,926 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 168.8 MB. Free memory was 134.8 MB in the beginning and 134.7 MB in the end (delta: 98.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 339.22 ms. Allocated memory is still 168.8 MB. Free memory was 116.0 MB in the beginning and 128.5 MB in the end (delta: -12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 45.22 ms. Allocated memory is still 168.8 MB. Free memory was 128.5 MB in the beginning and 126.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 24.06 ms. Allocated memory is still 168.8 MB. Free memory was 126.4 MB in the beginning and 125.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 296.43 ms. Allocated memory is still 168.8 MB. Free memory was 125.3 MB in the beginning and 113.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1012.64 ms. Allocated memory was 168.8 MB in the beginning and 208.7 MB in the end (delta: 39.8 MB). Free memory was 113.3 MB in the beginning and 126.3 MB in the end (delta: -13.0 MB). Peak memory consumption was 27.4 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: 939]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 939]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 925]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 925]: 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, 94 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 948.5ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 406.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 35.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 59 SDtfs, 17 SDslu, 10 SDs, 0 SdLazy, 90 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 65.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 49.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=270occurred in iteration=3, InterpolantAutomatonStates: 18, 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: 16.7ms SsaConstructionTime, 95.7ms SatisfiabilityAnalysisTime, 251.9ms InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 261 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-19 14:47:34,954 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...