/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/02-base_25-malloc_race_cp.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 23:05:52,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 23:05:52,038 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 23:05:52,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 23:05:52,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 23:05:52,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 23:05:52,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 23:05:52,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 23:05:52,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 23:05:52,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 23:05:52,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 23:05:52,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 23:05:52,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 23:05:52,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 23:05:52,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 23:05:52,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 23:05:52,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 23:05:52,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 23:05:52,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 23:05:52,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 23:05:52,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 23:05:52,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 23:05:52,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 23:05:52,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 23:05:52,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-16 23:05:52,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 23:05:52,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 23:05:52,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 23:05:52,116 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 23:05:52,128 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 23:05:52,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 23:05:52,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 23:05:52,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 23:05:52,130 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 23:05:52,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 23:05:52,130 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 23:05:52,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 23:05:52,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 23:05:52,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 23:05:52,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 23:05:52,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 23:05:52,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 23:05:52,131 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 23:05:52,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 23:05:52,131 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 23:05:52,132 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 23:05:52,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 23:05:52,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 23:05:52,132 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 23:05:52,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 23:05:52,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:05:52,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 23:05:52,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 23:05:52,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 23:05:52,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 23:05:52,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 23:05:52,133 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 23:05:52,133 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-16 23:05:52,133 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 23:05:52,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 23:05:52,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 23:05:52,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 23:05:52,343 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 23:05:52,355 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 23:05:52,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/02-base_25-malloc_race_cp.i [2021-10-16 23:05:52,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9daeb4fd8/c2dd1f45b7be4287bd76ac364fb6c626/FLAGb731d7923 [2021-10-16 23:05:52,991 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 23:05:52,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/02-base_25-malloc_race_cp.i [2021-10-16 23:05:53,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9daeb4fd8/c2dd1f45b7be4287bd76ac364fb6c626/FLAGb731d7923 [2021-10-16 23:05:53,289 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9daeb4fd8/c2dd1f45b7be4287bd76ac364fb6c626 [2021-10-16 23:05:53,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 23:05:53,292 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 23:05:53,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 23:05:53,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 23:05:53,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 23:05:53,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:05:53" (1/1) ... [2021-10-16 23:05:53,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f2fea23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:53, skipping insertion in model container [2021-10-16 23:05:53,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:05:53" (1/1) ... [2021-10-16 23:05:53,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 23:05:53,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 23:05:53,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:05:53,868 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 23:05:53,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:05:54,022 INFO L208 MainTranslator]: Completed translation [2021-10-16 23:05:54,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:54 WrapperNode [2021-10-16 23:05:54,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 23:05:54,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 23:05:54,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 23:05:54,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 23:05:54,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:54" (1/1) ... [2021-10-16 23:05:54,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:54" (1/1) ... [2021-10-16 23:05:54,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 23:05:54,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 23:05:54,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 23:05:54,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 23:05:54,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:54" (1/1) ... [2021-10-16 23:05:54,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:54" (1/1) ... [2021-10-16 23:05:54,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:54" (1/1) ... [2021-10-16 23:05:54,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:54" (1/1) ... [2021-10-16 23:05:54,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:54" (1/1) ... [2021-10-16 23:05:54,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:54" (1/1) ... [2021-10-16 23:05:54,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:54" (1/1) ... [2021-10-16 23:05:54,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 23:05:54,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 23:05:54,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 23:05:54,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 23:05:54,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:54" (1/1) ... [2021-10-16 23:05:54,156 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:05:54,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 23:05:54,174 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 23:05:54,176 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 23:05:54,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 23:05:54,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 23:05:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 23:05:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 23:05:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 23:05:54,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 23:05:54,218 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 23:05:54,218 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 23:05:54,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 23:05:54,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 23:05:54,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 23:05:54,220 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 23:05:54,568 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 23:05:54,569 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 23:05:54,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:05:54 BoogieIcfgContainer [2021-10-16 23:05:54,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 23:05:54,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 23:05:54,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 23:05:54,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 23:05:54,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:05:53" (1/3) ... [2021-10-16 23:05:54,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2490af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:05:54, skipping insertion in model container [2021-10-16 23:05:54,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:05:54" (2/3) ... [2021-10-16 23:05:54,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2490af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:05:54, skipping insertion in model container [2021-10-16 23:05:54,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:05:54" (3/3) ... [2021-10-16 23:05:54,578 INFO L111 eAbstractionObserver]: Analyzing ICFG 02-base_25-malloc_race_cp.i [2021-10-16 23:05:54,582 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 23:05:54,582 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-16 23:05:54,582 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 23:05:54,608 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,608 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,608 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,608 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,608 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,608 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,609 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,609 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,609 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,609 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,609 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,609 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,609 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,610 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,610 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,611 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,611 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,611 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,611 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,612 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,612 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,612 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,612 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,613 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,613 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,613 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,613 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,613 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,614 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,614 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,614 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,614 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,615 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,615 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,615 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,616 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,616 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,616 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,616 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,617 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,617 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,618 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,618 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,618 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,618 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,618 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,618 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,618 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,619 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,619 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,619 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,619 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,621 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,621 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,621 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,622 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,624 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,625 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,625 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,625 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,628 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,628 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,628 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,628 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,628 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,628 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,629 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,629 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,629 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:05:54,633 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-16 23:05:54,674 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 23:05:54,679 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 23:05:54,680 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-16 23:05:54,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 115 places, 111 transitions, 227 flow [2021-10-16 23:05:54,753 INFO L129 PetriNetUnfolder]: 0/110 cut-off events. [2021-10-16 23:05:54,753 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:05:54,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 110 events. 0/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-10-16 23:05:54,756 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 111 transitions, 227 flow [2021-10-16 23:05:54,759 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 104 transitions, 211 flow [2021-10-16 23:05:54,770 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2021-10-16 23:05:54,770 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:05:54,770 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:05:54,771 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:05:54,771 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 23:05:54,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:05:54,776 INFO L82 PathProgramCache]: Analyzing trace with hash 2083282370, now seen corresponding path program 1 times [2021-10-16 23:05:54,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:05:54,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797353542] [2021-10-16 23:05:54,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:05:54,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:05:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:05:54,965 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 23:05:54,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:05:54,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797353542] [2021-10-16 23:05:54,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797353542] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:05:54,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:05:54,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:05:54,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212528838] [2021-10-16 23:05:54,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:05:54,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:05:54,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:05:54,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:05:54,990 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 111 [2021-10-16 23:05:54,995 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 104 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states 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 23:05:54,995 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:05:54,999 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 111 [2021-10-16 23:05:55,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:05:55,057 INFO L129 PetriNetUnfolder]: 1/124 cut-off events. [2021-10-16 23:05:55,057 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:05:55,058 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 124 events. 1/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 131 event pairs, 1 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 80. Up to 8 conditions per place. [2021-10-16 23:05:55,059 INFO L132 encePairwiseOnDemand]: 108/111 looper letters, 5 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2021-10-16 23:05:55,059 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 103 transitions, 223 flow [2021-10-16 23:05:55,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:05:55,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:05:55,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2021-10-16 23:05:55,068 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9519519519519519 [2021-10-16 23:05:55,069 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2021-10-16 23:05:55,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2021-10-16 23:05:55,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:05:55,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2021-10-16 23:05:55,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states 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 23:05:55,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states 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 23:05:55,080 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states 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 23:05:55,081 INFO L186 Difference]: Start difference. First operand has 108 places, 104 transitions, 211 flow. Second operand 3 states and 317 transitions. [2021-10-16 23:05:55,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 103 transitions, 223 flow [2021-10-16 23:05:55,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 103 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-16 23:05:55,086 INFO L242 Difference]: Finished difference. Result has 108 places, 103 transitions, 212 flow [2021-10-16 23:05:55,087 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=108, PETRI_TRANSITIONS=103} [2021-10-16 23:05:55,088 INFO L334 CegarLoopForPetriNet]: 108 programPoint places, 0 predicate places. [2021-10-16 23:05:55,088 INFO L470 AbstractCegarLoop]: Abstraction has has 108 places, 103 transitions, 212 flow [2021-10-16 23:05:55,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states 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 23:05:55,089 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:05:55,089 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:05:55,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 23:05:55,089 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 23:05:55,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:05:55,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1906147609, now seen corresponding path program 1 times [2021-10-16 23:05:55,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:05:55,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517514392] [2021-10-16 23:05:55,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:05:55,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:05:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:05:55,166 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 23:05:55,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:05:55,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517514392] [2021-10-16 23:05:55,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517514392] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:05:55,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:05:55,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:05:55,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900342805] [2021-10-16 23:05:55,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:05:55,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:05:55,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:05:55,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:05:55,171 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 111 [2021-10-16 23:05:55,171 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states 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 23:05:55,171 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:05:55,171 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 111 [2021-10-16 23:05:55,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:05:55,218 INFO L129 PetriNetUnfolder]: 0/102 cut-off events. [2021-10-16 23:05:55,218 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:05:55,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 102 events. 0/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-10-16 23:05:55,219 INFO L132 encePairwiseOnDemand]: 108/111 looper letters, 5 selfloop transitions, 2 changer transitions 0/102 dead transitions. [2021-10-16 23:05:55,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 102 transitions, 224 flow [2021-10-16 23:05:55,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:05:55,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:05:55,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2021-10-16 23:05:55,224 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9519519519519519 [2021-10-16 23:05:55,225 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2021-10-16 23:05:55,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2021-10-16 23:05:55,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:05:55,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2021-10-16 23:05:55,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states 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 23:05:55,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states 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 23:05:55,229 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states 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 23:05:55,229 INFO L186 Difference]: Start difference. First operand has 108 places, 103 transitions, 212 flow. Second operand 3 states and 317 transitions. [2021-10-16 23:05:55,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 102 transitions, 224 flow [2021-10-16 23:05:55,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 102 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:05:55,232 INFO L242 Difference]: Finished difference. Result has 107 places, 102 transitions, 210 flow [2021-10-16 23:05:55,232 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2021-10-16 23:05:55,232 INFO L334 CegarLoopForPetriNet]: 108 programPoint places, -1 predicate places. [2021-10-16 23:05:55,233 INFO L470 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 210 flow [2021-10-16 23:05:55,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states 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 23:05:55,233 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:05:55,233 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] [2021-10-16 23:05:55,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 23:05:55,233 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 23:05:55,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:05:55,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1411079701, now seen corresponding path program 1 times [2021-10-16 23:05:55,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:05:55,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768768718] [2021-10-16 23:05:55,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:05:55,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:05:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:05:55,478 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 23:05:55,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:05:55,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768768718] [2021-10-16 23:05:55,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768768718] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:05:55,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:05:55,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:05:55,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061525517] [2021-10-16 23:05:55,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:05:55,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:05:55,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:05:55,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:05:55,484 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 111 [2021-10-16 23:05:55,484 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 102 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 85.66666666666667) internal successors, (514), 6 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:55,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:05:55,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 111 [2021-10-16 23:05:55,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:05:55,736 INFO L129 PetriNetUnfolder]: 185/711 cut-off events. [2021-10-16 23:05:55,736 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:05:55,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1119 conditions, 711 events. 185/711 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3802 event pairs, 78 based on Foata normal form. 0/684 useless extension candidates. Maximal degree in co-relation 1073. Up to 290 conditions per place. [2021-10-16 23:05:55,743 INFO L132 encePairwiseOnDemand]: 96/111 looper letters, 41 selfloop transitions, 38 changer transitions 0/155 dead transitions. [2021-10-16 23:05:55,743 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 155 transitions, 474 flow [2021-10-16 23:05:55,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:05:55,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:05:55,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 584 transitions. [2021-10-16 23:05:55,746 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8768768768768769 [2021-10-16 23:05:55,746 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 584 transitions. [2021-10-16 23:05:55,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 584 transitions. [2021-10-16 23:05:55,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:05:55,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 584 transitions. [2021-10-16 23:05:55,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 0 states have call successors, (0), 0 states 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 23:05:55,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 0 states have call successors, (0), 0 states 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 23:05:55,749 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 0 states have call successors, (0), 0 states 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 23:05:55,749 INFO L186 Difference]: Start difference. First operand has 107 places, 102 transitions, 210 flow. Second operand 6 states and 584 transitions. [2021-10-16 23:05:55,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 155 transitions, 474 flow [2021-10-16 23:05:55,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 155 transitions, 470 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:05:55,757 INFO L242 Difference]: Finished difference. Result has 114 places, 140 transitions, 440 flow [2021-10-16 23:05:55,759 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=440, PETRI_PLACES=114, PETRI_TRANSITIONS=140} [2021-10-16 23:05:55,760 INFO L334 CegarLoopForPetriNet]: 108 programPoint places, 6 predicate places. [2021-10-16 23:05:55,760 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 140 transitions, 440 flow [2021-10-16 23:05:55,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.66666666666667) internal successors, (514), 6 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:05:55,761 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:05:55,761 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] [2021-10-16 23:05:55,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 23:05:55,762 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 23:05:55,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:05:55,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1761522908, now seen corresponding path program 1 times [2021-10-16 23:05:55,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:05:55,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208441071] [2021-10-16 23:05:55,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:05:55,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:05:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:05:55,794 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 23:05:55,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:05:55,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208441071] [2021-10-16 23:05:55,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208441071] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:05:55,795 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:05:55,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 23:05:55,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001537852] [2021-10-16 23:05:55,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:05:55,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:05:55,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:05:55,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:05:55,796 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 111 [2021-10-16 23:05:55,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 140 transitions, 440 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states 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 23:05:55,797 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:05:55,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 111 [2021-10-16 23:05:55,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:05:55,821 INFO L129 PetriNetUnfolder]: 39/256 cut-off events. [2021-10-16 23:05:55,822 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-10-16 23:05:55,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 256 events. 39/256 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 754 event pairs, 4 based on Foata normal form. 2/255 useless extension candidates. Maximal degree in co-relation 365. Up to 56 conditions per place. [2021-10-16 23:05:55,823 INFO L132 encePairwiseOnDemand]: 108/111 looper letters, 6 selfloop transitions, 3 changer transitions 0/123 dead transitions. [2021-10-16 23:05:55,823 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 123 transitions, 365 flow [2021-10-16 23:05:55,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:05:55,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:05:55,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 314 transitions. [2021-10-16 23:05:55,824 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9429429429429429 [2021-10-16 23:05:55,824 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 314 transitions. [2021-10-16 23:05:55,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 314 transitions. [2021-10-16 23:05:55,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:05:55,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 314 transitions. [2021-10-16 23:05:55,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states 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 23:05:55,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states 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 23:05:55,826 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 0 states have call successors, (0), 0 states 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 23:05:55,826 INFO L186 Difference]: Start difference. First operand has 114 places, 140 transitions, 440 flow. Second operand 3 states and 314 transitions. [2021-10-16 23:05:55,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 123 transitions, 365 flow [2021-10-16 23:05:55,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 123 transitions, 355 flow, removed 5 selfloop flow, removed 0 redundant places. [2021-10-16 23:05:55,829 INFO L242 Difference]: Finished difference. Result has 116 places, 123 transitions, 343 flow [2021-10-16 23:05:55,829 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=116, PETRI_TRANSITIONS=123} [2021-10-16 23:05:55,829 INFO L334 CegarLoopForPetriNet]: 108 programPoint places, 8 predicate places. [2021-10-16 23:05:55,829 INFO L470 AbstractCegarLoop]: Abstraction has has 116 places, 123 transitions, 343 flow [2021-10-16 23:05:55,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states 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 23:05:55,829 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:05:55,830 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] [2021-10-16 23:05:55,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 23:05:55,830 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 23:05:55,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:05:55,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1133193946, now seen corresponding path program 1 times [2021-10-16 23:05:55,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:05:55,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454235492] [2021-10-16 23:05:55,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:05:55,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:05:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:05:55,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:05:55,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:05:55,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454235492] [2021-10-16 23:05:55,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454235492] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:05:55,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:05:55,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:05:55,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031661748] [2021-10-16 23:05:55,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:05:55,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:05:55,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:05:55,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:05:55,900 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 111 [2021-10-16 23:05:55,900 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 123 transitions, 343 flow. Second operand has 6 states, 6 states have (on average 86.66666666666667) internal successors, (520), 6 states have internal predecessors, (520), 0 states have call successors, (0), 0 states 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 23:05:55,900 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:05:55,900 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 111 [2021-10-16 23:05:55,900 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:05:56,018 INFO L129 PetriNetUnfolder]: 77/378 cut-off events. [2021-10-16 23:05:56,018 INFO L130 PetriNetUnfolder]: For 42/54 co-relation queries the response was YES. [2021-10-16 23:05:56,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 378 events. 77/378 cut-off events. For 42/54 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1366 event pairs, 12 based on Foata normal form. 6/381 useless extension candidates. Maximal degree in co-relation 715. Up to 172 conditions per place. [2021-10-16 23:05:56,020 INFO L132 encePairwiseOnDemand]: 102/111 looper letters, 44 selfloop transitions, 20 changer transitions 0/142 dead transitions. [2021-10-16 23:05:56,020 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 142 transitions, 541 flow [2021-10-16 23:05:56,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:05:56,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:05:56,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 549 transitions. [2021-10-16 23:05:56,021 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8243243243243243 [2021-10-16 23:05:56,021 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 549 transitions. [2021-10-16 23:05:56,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 549 transitions. [2021-10-16 23:05:56,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:05:56,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 549 transitions. [2021-10-16 23:05:56,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 0 states have call successors, (0), 0 states 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 23:05:56,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 0 states have call successors, (0), 0 states 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 23:05:56,024 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 0 states have call successors, (0), 0 states 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 23:05:56,024 INFO L186 Difference]: Start difference. First operand has 116 places, 123 transitions, 343 flow. Second operand 6 states and 549 transitions. [2021-10-16 23:05:56,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 142 transitions, 541 flow [2021-10-16 23:05:56,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 142 transitions, 538 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-16 23:05:56,027 INFO L242 Difference]: Finished difference. Result has 124 places, 142 transitions, 489 flow [2021-10-16 23:05:56,028 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=489, PETRI_PLACES=124, PETRI_TRANSITIONS=142} [2021-10-16 23:05:56,028 INFO L334 CegarLoopForPetriNet]: 108 programPoint places, 16 predicate places. [2021-10-16 23:05:56,028 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 142 transitions, 489 flow [2021-10-16 23:05:56,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.66666666666667) internal successors, (520), 6 states have internal predecessors, (520), 0 states have call successors, (0), 0 states 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 23:05:56,028 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:05:56,028 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:05:56,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 23:05:56,029 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 23:05:56,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:05:56,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1740807368, now seen corresponding path program 1 times [2021-10-16 23:05:56,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:05:56,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768195400] [2021-10-16 23:05:56,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:05:56,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:05:56,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:05:56,210 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 23:05:56,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:05:56,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768195400] [2021-10-16 23:05:56,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768195400] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:05:56,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:05:56,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-10-16 23:05:56,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374966817] [2021-10-16 23:05:56,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-16 23:05:56,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:05:56,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-16 23:05:56,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-16 23:05:56,214 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 111 [2021-10-16 23:05:56,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 142 transitions, 489 flow. Second operand has 12 states, 12 states have (on average 69.58333333333333) internal successors, (835), 12 states have internal predecessors, (835), 0 states have call successors, (0), 0 states 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 23:05:56,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:05:56,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 111 [2021-10-16 23:05:56,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:05:56,599 INFO L129 PetriNetUnfolder]: 113/480 cut-off events. [2021-10-16 23:05:56,600 INFO L130 PetriNetUnfolder]: For 113/115 co-relation queries the response was YES. [2021-10-16 23:05:56,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 480 events. 113/480 cut-off events. For 113/115 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2006 event pairs, 24 based on Foata normal form. 7/482 useless extension candidates. Maximal degree in co-relation 1081. Up to 143 conditions per place. [2021-10-16 23:05:56,602 INFO L132 encePairwiseOnDemand]: 97/111 looper letters, 77 selfloop transitions, 17 changer transitions 30/183 dead transitions. [2021-10-16 23:05:56,602 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 183 transitions, 919 flow [2021-10-16 23:05:56,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 23:05:56,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-16 23:05:56,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1288 transitions. [2021-10-16 23:05:56,605 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6446446446446447 [2021-10-16 23:05:56,605 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1288 transitions. [2021-10-16 23:05:56,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1288 transitions. [2021-10-16 23:05:56,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:05:56,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1288 transitions. [2021-10-16 23:05:56,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 71.55555555555556) internal successors, (1288), 18 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states 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 23:05:56,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 111.0) internal successors, (2109), 19 states have internal predecessors, (2109), 0 states have call successors, (0), 0 states 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 23:05:56,610 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 111.0) internal successors, (2109), 19 states have internal predecessors, (2109), 0 states have call successors, (0), 0 states 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 23:05:56,610 INFO L186 Difference]: Start difference. First operand has 124 places, 142 transitions, 489 flow. Second operand 18 states and 1288 transitions. [2021-10-16 23:05:56,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 183 transitions, 919 flow [2021-10-16 23:05:56,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 183 transitions, 877 flow, removed 16 selfloop flow, removed 1 redundant places. [2021-10-16 23:05:56,617 INFO L242 Difference]: Finished difference. Result has 139 places, 137 transitions, 461 flow [2021-10-16 23:05:56,617 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=461, PETRI_PLACES=139, PETRI_TRANSITIONS=137} [2021-10-16 23:05:56,617 INFO L334 CegarLoopForPetriNet]: 108 programPoint places, 31 predicate places. [2021-10-16 23:05:56,617 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 137 transitions, 461 flow [2021-10-16 23:05:56,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 69.58333333333333) internal successors, (835), 12 states have internal predecessors, (835), 0 states have call successors, (0), 0 states 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 23:05:56,618 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:05:56,618 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:05:56,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-16 23:05:56,618 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-16 23:05:56,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:05:56,619 INFO L82 PathProgramCache]: Analyzing trace with hash -220134813, now seen corresponding path program 1 times [2021-10-16 23:05:56,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:05:56,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514873806] [2021-10-16 23:05:56,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:05:56,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:05:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:05:56,650 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 23:05:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:05:56,699 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 23:05:56,699 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-16 23:05:56,700 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:05:56,702 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:05:56,702 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:05:56,702 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 23:05:56,702 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:05:56,702 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:05:56,702 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:05:56,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-16 23:05:56,708 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 23:05:56,708 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 23:05:56,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:05:56 BasicIcfg [2021-10-16 23:05:56,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 23:05:56,775 INFO L168 Benchmark]: Toolchain (without parser) took 3482.59 ms. Allocated memory was 167.8 MB in the beginning and 228.6 MB in the end (delta: 60.8 MB). Free memory was 111.6 MB in the beginning and 92.0 MB in the end (delta: 19.5 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. [2021-10-16 23:05:56,775 INFO L168 Benchmark]: CDTParser took 0.85 ms. Allocated memory is still 167.8 MB. Free memory was 130.0 MB in the beginning and 129.8 MB in the end (delta: 133.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:05:56,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.39 ms. Allocated memory was 167.8 MB in the beginning and 228.6 MB in the end (delta: 60.8 MB). Free memory was 111.4 MB in the beginning and 177.3 MB in the end (delta: -65.9 MB). Peak memory consumption was 9.2 MB. Max. memory is 8.0 GB. [2021-10-16 23:05:56,776 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.85 ms. Allocated memory is still 228.6 MB. Free memory was 177.3 MB in the beginning and 174.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:05:56,776 INFO L168 Benchmark]: Boogie Preprocessor took 32.97 ms. Allocated memory is still 228.6 MB. Free memory was 174.7 MB in the beginning and 173.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:05:56,777 INFO L168 Benchmark]: RCFGBuilder took 442.02 ms. Allocated memory is still 228.6 MB. Free memory was 173.1 MB in the beginning and 158.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-10-16 23:05:56,777 INFO L168 Benchmark]: TraceAbstraction took 2202.39 ms. Allocated memory is still 228.6 MB. Free memory was 157.9 MB in the beginning and 92.0 MB in the end (delta: 65.8 MB). Peak memory consumption was 67.4 MB. Max. memory is 8.0 GB. [2021-10-16 23:05:56,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85 ms. Allocated memory is still 167.8 MB. Free memory was 130.0 MB in the beginning and 129.8 MB in the end (delta: 133.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 723.39 ms. Allocated memory was 167.8 MB in the beginning and 228.6 MB in the end (delta: 60.8 MB). Free memory was 111.4 MB in the beginning and 177.3 MB in the end (delta: -65.9 MB). Peak memory consumption was 9.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 70.85 ms. Allocated memory is still 228.6 MB. Free memory was 177.3 MB in the beginning and 174.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.97 ms. Allocated memory is still 228.6 MB. Free memory was 174.7 MB in the beginning and 173.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 442.02 ms. Allocated memory is still 228.6 MB. Free memory was 173.1 MB in the beginning and 158.4 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2202.39 ms. Allocated memory is still 228.6 MB. Free memory was 157.9 MB in the beginning and 92.0 MB in the end (delta: 65.8 MB). Peak memory consumption was 67.4 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 - CounterExampleResult [Line: 1222]: the program contains a data race the program contains a data race We found a FailurePath: [L1216] 0 int *x; VAL [x={0:0}] [L1217] 0 int *y; VAL [x={0:0}, y={0:0}] [L1218] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [m={9:0}, x={0:0}, y={0:0}] [L1227] 0 pthread_t id; VAL [m={9:0}, x={0:0}, y={0:0}] [L1228] 0 int *z; VAL [m={9:0}, x={0:0}, y={0:0}] [L1229] 0 x = malloc(sizeof(int)) VAL [m={9:0}, x={-2:0}, y={0:0}] [L1230] 0 y = malloc(sizeof(int)) VAL [m={9:0}, x={-2:0}, y={-3:0}] [L1232] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1234] 0 \read(*x) VAL [arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1221] 1 *x = 3 VAL [*x=103, *x = 3=108, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1222] 1 *y = 8 VAL [*y=106, *y = 8=109, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1236] 0 \read(*z) VAL [*y=106, *y = 8=109, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1222] 1 *y = 8 VAL [*y=106, *y = 8=109, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1222] 1 *y = 8 VAL [*y=106, *y = 8=109, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1221]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 144 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2035.6ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1015.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 79.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 79 SDtfs, 101 SDslu, 80 SDs, 0 SdLazy, 629 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 324.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 281.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=489occurred in iteration=5, InterpolantAutomatonStates: 39, 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: 21.9ms SsaConstructionTime, 160.5ms SatisfiabilityAnalysisTime, 529.2ms InterpolantComputationTime, 436 NumberOfCodeBlocks, 436 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 339 ConstructedInterpolants, 0 QuantifiedInterpolants, 1022 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 23:05:56,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...