/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_24-malloc_races.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-aed12abd52951161f3584c1e4a16827ff4d06934-aed12ab [2021-10-14 12:08:31,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-14 12:08:31,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-14 12:08:31,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-14 12:08:31,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-14 12:08:31,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-14 12:08:31,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-14 12:08:31,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-14 12:08:31,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-14 12:08:31,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-14 12:08:31,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-14 12:08:31,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-14 12:08:31,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-14 12:08:31,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-14 12:08:31,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-14 12:08:31,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-14 12:08:31,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-14 12:08:31,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-14 12:08:31,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-14 12:08:31,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-14 12:08:31,359 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 [2021-10-14 12:08:31,382 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-14 12:08:31,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-14 12:08:31,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-14 12:08:31,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-14 12:08:31,383 INFO L138 SettingsManager]: * Use SBE=true [2021-10-14 12:08:31,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-14 12:08:31,383 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-14 12:08:31,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-14 12:08:31,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-14 12:08:31,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-14 12:08:31,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-14 12:08:31,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-14 12:08:31,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-14 12:08:31,384 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-14 12:08:31,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-14 12:08:31,384 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-14 12:08:31,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-14 12:08:31,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-14 12:08:31,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-14 12:08:31,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-14 12:08:31,385 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-14 12:08:31,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-14 12:08:31,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-14 12:08:31,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-14 12:08:31,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-14 12:08:31,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-14 12:08:31,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-14 12:08:31,385 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-14 12:08:31,385 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-14 12:08:31,385 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-14 12:08:31,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-14 12:08:31,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-14 12:08:31,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-14 12:08:31,571 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-14 12:08:31,572 INFO L275 PluginConnector]: CDTParser initialized [2021-10-14 12:08:31,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/02-base_24-malloc_races.i [2021-10-14 12:08:31,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23fbc8b2b/80950a67e9e64388a57fd3147855c529/FLAG4196f6004 [2021-10-14 12:08:32,139 INFO L306 CDTParser]: Found 1 translation units. [2021-10-14 12:08:32,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/02-base_24-malloc_races.i [2021-10-14 12:08:32,165 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23fbc8b2b/80950a67e9e64388a57fd3147855c529/FLAG4196f6004 [2021-10-14 12:08:32,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23fbc8b2b/80950a67e9e64388a57fd3147855c529 [2021-10-14 12:08:32,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-14 12:08:32,673 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-14 12:08:32,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-14 12:08:32,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-14 12:08:32,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-14 12:08:32,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:08:32" (1/1) ... [2021-10-14 12:08:32,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53776353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:32, skipping insertion in model container [2021-10-14 12:08:32,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:08:32" (1/1) ... [2021-10-14 12:08:32,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-14 12:08:32,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-14 12:08:33,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-14 12:08:33,119 INFO L203 MainTranslator]: Completed pre-run [2021-10-14 12:08:33,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-14 12:08:33,216 INFO L208 MainTranslator]: Completed translation [2021-10-14 12:08:33,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:33 WrapperNode [2021-10-14 12:08:33,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-14 12:08:33,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-14 12:08:33,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-14 12:08:33,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-14 12:08:33,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:33" (1/1) ... [2021-10-14 12:08:33,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:33" (1/1) ... [2021-10-14 12:08:33,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-14 12:08:33,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-14 12:08:33,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-14 12:08:33,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-14 12:08:33,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:33" (1/1) ... [2021-10-14 12:08:33,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:33" (1/1) ... [2021-10-14 12:08:33,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:33" (1/1) ... [2021-10-14 12:08:33,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:33" (1/1) ... [2021-10-14 12:08:33,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:33" (1/1) ... [2021-10-14 12:08:33,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:33" (1/1) ... [2021-10-14 12:08:33,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:33" (1/1) ... [2021-10-14 12:08:33,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-14 12:08:33,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-14 12:08:33,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-14 12:08:33,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-14 12:08:33,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:33" (1/1) ... [2021-10-14 12:08:33,315 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-14 12:08:33,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-14 12:08:33,335 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) [2021-10-14 12:08:33,341 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 [2021-10-14 12:08:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-14 12:08:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-14 12:08:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-14 12:08:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-14 12:08:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-14 12:08:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-14 12:08:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-14 12:08:33,377 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-14 12:08:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-14 12:08:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-14 12:08:33,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-14 12:08:33,378 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-14 12:08:33,626 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-14 12:08:33,627 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-14 12:08:33,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:08:33 BoogieIcfgContainer [2021-10-14 12:08:33,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-14 12:08:33,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-14 12:08:33,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-14 12:08:33,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-14 12:08:33,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:08:32" (1/3) ... [2021-10-14 12:08:33,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12801ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:08:33, skipping insertion in model container [2021-10-14 12:08:33,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:08:33" (2/3) ... [2021-10-14 12:08:33,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12801ebe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:08:33, skipping insertion in model container [2021-10-14 12:08:33,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:08:33" (3/3) ... [2021-10-14 12:08:33,633 INFO L111 eAbstractionObserver]: Analyzing ICFG 02-base_24-malloc_races.i [2021-10-14 12:08:33,636 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-14 12:08:33,636 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-14 12:08:33,636 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-14 12:08:33,666 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,666 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,666 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,667 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,667 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,667 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,667 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,667 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,667 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,667 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,667 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,668 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,669 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,669 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,669 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,669 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,669 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,669 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,669 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,670 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,670 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,670 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,670 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,670 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,670 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,670 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,670 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,671 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,672 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,674 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,675 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,675 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,675 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,675 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,675 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,675 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,675 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,676 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,676 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,676 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,676 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,676 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,676 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,676 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,676 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,677 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,679 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,679 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,679 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,679 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,679 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,679 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,680 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,680 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,680 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-14 12:08:33,687 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-14 12:08:33,719 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-14 12:08:33,724 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 [2021-10-14 12:08:33,724 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-10-14 12:08:33,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 113 places, 109 transitions, 223 flow [2021-10-14 12:08:33,773 INFO L129 PetriNetUnfolder]: 0/108 cut-off events. [2021-10-14 12:08:33,774 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-14 12:08:33,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 108 events. 0/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-10-14 12:08:33,775 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 109 transitions, 223 flow [2021-10-14 12:08:33,779 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 102 transitions, 207 flow [2021-10-14 12:08:33,785 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2021-10-14 12:08:33,785 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-14 12:08:33,785 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-14 12:08:33,786 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] [2021-10-14 12:08:33,786 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-14 12:08:33,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 12:08:33,790 INFO L82 PathProgramCache]: Analyzing trace with hash -920298377, now seen corresponding path program 1 times [2021-10-14 12:08:33,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 12:08:33,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226425191] [2021-10-14 12:08:33,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 12:08:33,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 12:08:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 12:08:33,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-14 12:08:33,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 12:08:33,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226425191] [2021-10-14 12:08:33,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226425191] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 12:08:33,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 12:08:33,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-14 12:08:33,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551944762] [2021-10-14 12:08:33,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-14 12:08:33,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 12:08:33,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-14 12:08:33,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-14 12:08:34,005 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 109 [2021-10-14 12:08:34,009 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 102 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2021-10-14 12:08:34,009 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-14 12:08:34,013 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 109 [2021-10-14 12:08:34,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-14 12:08:34,077 INFO L129 PetriNetUnfolder]: 1/122 cut-off events. [2021-10-14 12:08:34,077 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-14 12:08:34,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 122 events. 1/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 130 event pairs, 1 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 83. Up to 8 conditions per place. [2021-10-14 12:08:34,092 INFO L132 encePairwiseOnDemand]: 106/109 looper letters, 5 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2021-10-14 12:08:34,092 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 101 transitions, 219 flow [2021-10-14 12:08:34,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-14 12:08:34,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-14 12:08:34,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2021-10-14 12:08:34,100 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9510703363914373 [2021-10-14 12:08:34,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 311 transitions. [2021-10-14 12:08:34,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 311 transitions. [2021-10-14 12:08:34,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-14 12:08:34,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 311 transitions. [2021-10-14 12:08:34,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2021-10-14 12:08:34,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:08:34,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:08:34,127 INFO L186 Difference]: Start difference. First operand has 106 places, 102 transitions, 207 flow. Second operand 3 states and 311 transitions. [2021-10-14 12:08:34,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 101 transitions, 219 flow [2021-10-14 12:08:34,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 101 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-14 12:08:34,132 INFO L242 Difference]: Finished difference. Result has 106 places, 101 transitions, 208 flow [2021-10-14 12:08:34,133 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2021-10-14 12:08:34,134 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 0 predicate places. [2021-10-14 12:08:34,134 INFO L470 AbstractCegarLoop]: Abstraction has has 106 places, 101 transitions, 208 flow [2021-10-14 12:08:34,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2021-10-14 12:08:34,134 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-14 12:08:34,134 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] [2021-10-14 12:08:34,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-14 12:08:34,135 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-14 12:08:34,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 12:08:34,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1535217939, now seen corresponding path program 1 times [2021-10-14 12:08:34,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 12:08:34,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796295217] [2021-10-14 12:08:34,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 12:08:34,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 12:08:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 12:08:34,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-14 12:08:34,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 12:08:34,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796295217] [2021-10-14 12:08:34,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796295217] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 12:08:34,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 12:08:34,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-14 12:08:34,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363372843] [2021-10-14 12:08:34,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-14 12:08:34,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 12:08:34,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-14 12:08:34,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-14 12:08:34,191 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 109 [2021-10-14 12:08:34,192 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 101 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2021-10-14 12:08:34,192 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-14 12:08:34,192 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 109 [2021-10-14 12:08:34,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-14 12:08:34,242 INFO L129 PetriNetUnfolder]: 1/109 cut-off events. [2021-10-14 12:08:34,242 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-14 12:08:34,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 109 events. 1/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 1 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 88. Up to 8 conditions per place. [2021-10-14 12:08:34,243 INFO L132 encePairwiseOnDemand]: 106/109 looper letters, 5 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2021-10-14 12:08:34,243 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 100 transitions, 220 flow [2021-10-14 12:08:34,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-14 12:08:34,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-14 12:08:34,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 311 transitions. [2021-10-14 12:08:34,246 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9510703363914373 [2021-10-14 12:08:34,246 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 311 transitions. [2021-10-14 12:08:34,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 311 transitions. [2021-10-14 12:08:34,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-14 12:08:34,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 311 transitions. [2021-10-14 12:08:34,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2021-10-14 12:08:34,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:08:34,258 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:08:34,258 INFO L186 Difference]: Start difference. First operand has 106 places, 101 transitions, 208 flow. Second operand 3 states and 311 transitions. [2021-10-14 12:08:34,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 100 transitions, 220 flow [2021-10-14 12:08:34,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 100 transitions, 216 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-14 12:08:34,261 INFO L242 Difference]: Finished difference. Result has 105 places, 100 transitions, 206 flow [2021-10-14 12:08:34,261 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=105, PETRI_TRANSITIONS=100} [2021-10-14 12:08:34,261 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, -1 predicate places. [2021-10-14 12:08:34,261 INFO L470 AbstractCegarLoop]: Abstraction has has 105 places, 100 transitions, 206 flow [2021-10-14 12:08:34,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2021-10-14 12:08:34,262 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-14 12:08:34,262 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-14 12:08:34,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-14 12:08:34,262 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-14 12:08:34,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 12:08:34,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1063787481, now seen corresponding path program 1 times [2021-10-14 12:08:34,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 12:08:34,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958660969] [2021-10-14 12:08:34,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 12:08:34,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 12:08:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 12:08:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-14 12:08:34,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 12:08:34,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958660969] [2021-10-14 12:08:34,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958660969] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 12:08:34,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 12:08:34,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-14 12:08:34,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315397291] [2021-10-14 12:08:34,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-14 12:08:34,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 12:08:34,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-14 12:08:34,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-14 12:08:34,420 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 109 [2021-10-14 12:08:34,420 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 100 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 83.66666666666667) internal successors, (502), 6 states have internal predecessors, (502), 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) [2021-10-14 12:08:34,420 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-14 12:08:34,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 109 [2021-10-14 12:08:34,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-14 12:08:34,681 INFO L129 PetriNetUnfolder]: 185/758 cut-off events. [2021-10-14 12:08:34,681 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-14 12:08:34,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1166 conditions, 758 events. 185/758 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4163 event pairs, 78 based on Foata normal form. 0/730 useless extension candidates. Maximal degree in co-relation 1121. Up to 290 conditions per place. [2021-10-14 12:08:34,687 INFO L132 encePairwiseOnDemand]: 94/109 looper letters, 41 selfloop transitions, 38 changer transitions 0/153 dead transitions. [2021-10-14 12:08:34,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 153 transitions, 470 flow [2021-10-14 12:08:34,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-14 12:08:34,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-14 12:08:34,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 572 transitions. [2021-10-14 12:08:34,691 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8746177370030581 [2021-10-14 12:08:34,691 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 572 transitions. [2021-10-14 12:08:34,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 572 transitions. [2021-10-14 12:08:34,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-14 12:08:34,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 572 transitions. [2021-10-14 12:08:34,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.33333333333333) internal successors, (572), 6 states have internal predecessors, (572), 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) [2021-10-14 12:08:34,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2021-10-14 12:08:34,695 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2021-10-14 12:08:34,695 INFO L186 Difference]: Start difference. First operand has 105 places, 100 transitions, 206 flow. Second operand 6 states and 572 transitions. [2021-10-14 12:08:34,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 153 transitions, 470 flow [2021-10-14 12:08:34,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 153 transitions, 466 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-14 12:08:34,702 INFO L242 Difference]: Finished difference. Result has 112 places, 138 transitions, 436 flow [2021-10-14 12:08:34,704 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=436, PETRI_PLACES=112, PETRI_TRANSITIONS=138} [2021-10-14 12:08:34,704 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 6 predicate places. [2021-10-14 12:08:34,705 INFO L470 AbstractCegarLoop]: Abstraction has has 112 places, 138 transitions, 436 flow [2021-10-14 12:08:34,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.66666666666667) internal successors, (502), 6 states have internal predecessors, (502), 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) [2021-10-14 12:08:34,706 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-14 12:08:34,707 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] [2021-10-14 12:08:34,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-14 12:08:34,707 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-14 12:08:34,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 12:08:34,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1303654271, now seen corresponding path program 1 times [2021-10-14 12:08:34,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 12:08:34,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521453191] [2021-10-14 12:08:34,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 12:08:34,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 12:08:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 12:08:34,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-14 12:08:34,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 12:08:34,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521453191] [2021-10-14 12:08:34,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521453191] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 12:08:34,762 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 12:08:34,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-14 12:08:34,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920523370] [2021-10-14 12:08:34,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-14 12:08:34,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 12:08:34,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-14 12:08:34,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-14 12:08:34,767 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 109 [2021-10-14 12:08:34,767 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 138 transitions, 436 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2021-10-14 12:08:34,767 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-14 12:08:34,767 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 109 [2021-10-14 12:08:34,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-14 12:08:34,801 INFO L129 PetriNetUnfolder]: 39/260 cut-off events. [2021-10-14 12:08:34,801 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-10-14 12:08:34,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 260 events. 39/260 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 798 event pairs, 4 based on Foata normal form. 2/261 useless extension candidates. Maximal degree in co-relation 374. Up to 56 conditions per place. [2021-10-14 12:08:34,803 INFO L132 encePairwiseOnDemand]: 106/109 looper letters, 6 selfloop transitions, 3 changer transitions 0/121 dead transitions. [2021-10-14 12:08:34,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 121 transitions, 361 flow [2021-10-14 12:08:34,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-14 12:08:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-14 12:08:34,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2021-10-14 12:08:34,804 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9418960244648318 [2021-10-14 12:08:34,804 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2021-10-14 12:08:34,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2021-10-14 12:08:34,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-14 12:08:34,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2021-10-14 12:08:34,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:08:34,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:08:34,806 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:08:34,806 INFO L186 Difference]: Start difference. First operand has 112 places, 138 transitions, 436 flow. Second operand 3 states and 308 transitions. [2021-10-14 12:08:34,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 121 transitions, 361 flow [2021-10-14 12:08:34,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 121 transitions, 351 flow, removed 5 selfloop flow, removed 0 redundant places. [2021-10-14 12:08:34,812 INFO L242 Difference]: Finished difference. Result has 114 places, 121 transitions, 339 flow [2021-10-14 12:08:34,812 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=339, PETRI_PLACES=114, PETRI_TRANSITIONS=121} [2021-10-14 12:08:34,812 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 8 predicate places. [2021-10-14 12:08:34,812 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 121 transitions, 339 flow [2021-10-14 12:08:34,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2021-10-14 12:08:34,813 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-14 12:08:34,813 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] [2021-10-14 12:08:34,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-14 12:08:34,813 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-14 12:08:34,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 12:08:34,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1411162862, now seen corresponding path program 1 times [2021-10-14 12:08:34,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 12:08:34,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737438848] [2021-10-14 12:08:34,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 12:08:34,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 12:08:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 12:08:34,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-14 12:08:34,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 12:08:34,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737438848] [2021-10-14 12:08:34,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737438848] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 12:08:34,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 12:08:34,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-14 12:08:34,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942546442] [2021-10-14 12:08:34,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-14 12:08:34,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 12:08:34,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-14 12:08:34,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-14 12:08:34,936 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 109 [2021-10-14 12:08:34,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 121 transitions, 339 flow. Second operand has 6 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:08:34,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-14 12:08:34,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 109 [2021-10-14 12:08:34,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-14 12:08:35,051 INFO L129 PetriNetUnfolder]: 93/490 cut-off events. [2021-10-14 12:08:35,052 INFO L130 PetriNetUnfolder]: For 59/62 co-relation queries the response was YES. [2021-10-14 12:08:35,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 490 events. 93/490 cut-off events. For 59/62 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2190 event pairs, 25 based on Foata normal form. 7/495 useless extension candidates. Maximal degree in co-relation 899. Up to 174 conditions per place. [2021-10-14 12:08:35,055 INFO L132 encePairwiseOnDemand]: 100/109 looper letters, 59 selfloop transitions, 14 changer transitions 1/150 dead transitions. [2021-10-14 12:08:35,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 150 transitions, 577 flow [2021-10-14 12:08:35,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-14 12:08:35,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-14 12:08:35,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2021-10-14 12:08:35,056 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8363914373088684 [2021-10-14 12:08:35,056 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 547 transitions. [2021-10-14 12:08:35,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 547 transitions. [2021-10-14 12:08:35,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-14 12:08:35,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 547 transitions. [2021-10-14 12:08:35,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 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) [2021-10-14 12:08:35,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2021-10-14 12:08:35,059 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 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) [2021-10-14 12:08:35,060 INFO L186 Difference]: Start difference. First operand has 114 places, 121 transitions, 339 flow. Second operand 6 states and 547 transitions. [2021-10-14 12:08:35,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 150 transitions, 577 flow [2021-10-14 12:08:35,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 150 transitions, 574 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-14 12:08:35,065 INFO L242 Difference]: Finished difference. Result has 122 places, 135 transitions, 457 flow [2021-10-14 12:08:35,065 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=457, PETRI_PLACES=122, PETRI_TRANSITIONS=135} [2021-10-14 12:08:35,065 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 16 predicate places. [2021-10-14 12:08:35,065 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 135 transitions, 457 flow [2021-10-14 12:08:35,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.5) internal successors, (507), 6 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-14 12:08:35,066 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-14 12:08:35,066 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] [2021-10-14 12:08:35,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-14 12:08:35,066 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-14 12:08:35,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 12:08:35,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1432983127, now seen corresponding path program 1 times [2021-10-14 12:08:35,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 12:08:35,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278130498] [2021-10-14 12:08:35,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 12:08:35,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 12:08:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-14 12:08:35,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-14 12:08:35,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-14 12:08:35,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278130498] [2021-10-14 12:08:35,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278130498] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-14 12:08:35,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-14 12:08:35,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-14 12:08:35,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642721428] [2021-10-14 12:08:35,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-14 12:08:35,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-14 12:08:35,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-14 12:08:35,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-10-14 12:08:35,299 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 109 [2021-10-14 12:08:35,300 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 135 transitions, 457 flow. Second operand has 11 states, 11 states have (on average 69.63636363636364) internal successors, (766), 11 states have internal predecessors, (766), 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) [2021-10-14 12:08:35,300 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-14 12:08:35,300 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 109 [2021-10-14 12:08:35,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-14 12:08:35,545 INFO L129 PetriNetUnfolder]: 124/596 cut-off events. [2021-10-14 12:08:35,545 INFO L130 PetriNetUnfolder]: For 193/197 co-relation queries the response was YES. [2021-10-14 12:08:35,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1371 conditions, 596 events. 124/596 cut-off events. For 193/197 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2945 event pairs, 35 based on Foata normal form. 7/597 useless extension candidates. Maximal degree in co-relation 1299. Up to 168 conditions per place. [2021-10-14 12:08:35,547 INFO L132 encePairwiseOnDemand]: 96/109 looper letters, 71 selfloop transitions, 16 changer transitions 30/176 dead transitions. [2021-10-14 12:08:35,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 176 transitions, 881 flow [2021-10-14 12:08:35,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-14 12:08:35,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-14 12:08:35,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1219 transitions. [2021-10-14 12:08:35,550 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6578521316783594 [2021-10-14 12:08:35,550 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1219 transitions. [2021-10-14 12:08:35,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1219 transitions. [2021-10-14 12:08:35,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-14 12:08:35,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1219 transitions. [2021-10-14 12:08:35,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 71.70588235294117) internal successors, (1219), 17 states have internal predecessors, (1219), 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) [2021-10-14 12:08:35,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 109.0) internal successors, (1962), 18 states have internal predecessors, (1962), 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) [2021-10-14 12:08:35,555 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 109.0) internal successors, (1962), 18 states have internal predecessors, (1962), 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) [2021-10-14 12:08:35,555 INFO L186 Difference]: Start difference. First operand has 122 places, 135 transitions, 457 flow. Second operand 17 states and 1219 transitions. [2021-10-14 12:08:35,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 176 transitions, 881 flow [2021-10-14 12:08:35,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 176 transitions, 863 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-10-14 12:08:35,559 INFO L242 Difference]: Finished difference. Result has 136 places, 130 transitions, 451 flow [2021-10-14 12:08:35,560 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=109, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=451, PETRI_PLACES=136, PETRI_TRANSITIONS=130} [2021-10-14 12:08:35,560 INFO L334 CegarLoopForPetriNet]: 106 programPoint places, 30 predicate places. [2021-10-14 12:08:35,560 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 130 transitions, 451 flow [2021-10-14 12:08:35,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 69.63636363636364) internal successors, (766), 11 states have internal predecessors, (766), 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) [2021-10-14 12:08:35,560 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-14 12:08:35,560 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] [2021-10-14 12:08:35,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-14 12:08:35,561 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-10-14 12:08:35,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-14 12:08:35,561 INFO L82 PathProgramCache]: Analyzing trace with hash 919027714, now seen corresponding path program 1 times [2021-10-14 12:08:35,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-14 12:08:35,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128459611] [2021-10-14 12:08:35,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-14 12:08:35,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-14 12:08:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-14 12:08:35,578 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-14 12:08:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-14 12:08:35,608 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-14 12:08:35,609 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-14 12:08:35,609 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-14 12:08:35,611 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 12:08:35,611 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-10-14 12:08:35,611 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-14 12:08:35,611 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 12:08:35,611 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-14 12:08:35,611 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-14 12:08:35,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-14 12:08:35,616 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-14 12:08:35,616 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-14 12:08:35,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:08:35 BasicIcfg [2021-10-14 12:08:35,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-14 12:08:35,649 INFO L168 Benchmark]: Toolchain (without parser) took 2975.39 ms. Allocated memory was 222.3 MB in the beginning and 294.6 MB in the end (delta: 72.4 MB). Free memory was 192.8 MB in the beginning and 185.8 MB in the end (delta: 7.1 MB). Peak memory consumption was 79.3 MB. Max. memory is 8.0 GB. [2021-10-14 12:08:35,649 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 222.3 MB. Free memory was 183.7 MB in the beginning and 183.7 MB in the end (delta: 62.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-14 12:08:35,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 533.24 ms. Allocated memory is still 222.3 MB. Free memory was 192.6 MB in the beginning and 165.8 MB in the end (delta: 26.9 MB). Peak memory consumption was 28.2 MB. Max. memory is 8.0 GB. [2021-10-14 12:08:35,650 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.24 ms. Allocated memory is still 222.3 MB. Free memory was 165.8 MB in the beginning and 163.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-14 12:08:35,650 INFO L168 Benchmark]: Boogie Preprocessor took 29.50 ms. Allocated memory is still 222.3 MB. Free memory was 163.4 MB in the beginning and 161.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-14 12:08:35,650 INFO L168 Benchmark]: RCFGBuilder took 324.96 ms. Allocated memory is still 222.3 MB. Free memory was 161.6 MB in the beginning and 147.6 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-10-14 12:08:35,651 INFO L168 Benchmark]: TraceAbstraction took 2019.02 ms. Allocated memory was 222.3 MB in the beginning and 294.6 MB in the end (delta: 72.4 MB). Free memory was 147.4 MB in the beginning and 185.8 MB in the end (delta: -38.4 MB). Peak memory consumption was 35.3 MB. Max. memory is 8.0 GB. [2021-10-14 12:08:35,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 222.3 MB. Free memory was 183.7 MB in the beginning and 183.7 MB in the end (delta: 62.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 533.24 ms. Allocated memory is still 222.3 MB. Free memory was 192.6 MB in the beginning and 165.8 MB in the end (delta: 26.9 MB). Peak memory consumption was 28.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 55.24 ms. Allocated memory is still 222.3 MB. Free memory was 165.8 MB in the beginning and 163.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.50 ms. Allocated memory is still 222.3 MB. Free memory was 163.4 MB in the beginning and 161.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 324.96 ms. Allocated memory is still 222.3 MB. Free memory was 161.6 MB in the beginning and 147.6 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2019.02 ms. Allocated memory was 222.3 MB in the beginning and 294.6 MB in the end (delta: 72.4 MB). Free memory was 147.4 MB in the beginning and 185.8 MB in the end (delta: -38.4 MB). Peak memory consumption was 35.3 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 x = malloc(sizeof(int)) VAL [m={9:0}, x={-2:0}, y={0:0}] [L1229] 0 y = malloc(sizeof(int)) VAL [m={9:0}, x={-2:0}, y={-3:0}] [L1230] 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}] [L1232] 0 \read(*x) VAL [arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1221] 1 *x = 3 VAL [*x=110, *x = 3=108, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1222] 1 *y = 8 VAL [*y=111, *y = 8=107, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1234] 0 \read(*y) VAL [*y=111, *y = 8=107, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1222] 1 *y = 8 VAL [*y=111, *y = 8=107, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] [L1222] 1 *y = 8 VAL [*y=111, *y = 8=107, arg={0:0}, arg={0:0}, m={9:0}, x={-2:0}, y={-3:0}] - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - 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 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, 142 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1897.3ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 935.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 54.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 78 SDtfs, 77 SDslu, 48 SDs, 0 SdLazy, 577 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 322.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 171.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=457occurred in iteration=5, InterpolantAutomatonStates: 38, 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: 31.0ms SsaConstructionTime, 135.3ms SatisfiabilityAnalysisTime, 532.8ms InterpolantComputationTime, 413 NumberOfCodeBlocks, 413 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 319 ConstructedInterpolants, 0 QuantifiedInterpolants, 1072 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! [2021-10-14 12:08:35,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...