/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/05-lval_ls_08-glob_fld_2_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 23:06:47,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 23:06:47,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 23:06:47,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-16 23:06:47,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 23:06:47,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 23:06:47,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 23:06:47,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 23:06:47,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 23:06:47,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 23:06:47,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 23:06:47,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 23:06:47,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 23:06:47,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 23:06:47,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 23:06:47,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 23:06:47,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-16 23:06:47,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 23:06:47,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 23:06:47,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 23:06:47,632 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-10-16 23:06:47,644 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 23:06:47,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 23:06:47,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 23:06:47,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 23:06:47,645 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 23:06:47,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 23:06:47,645 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 23:06:47,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 23:06:47,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 23:06:47,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 23:06:47,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 23:06:47,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 23:06:47,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 23:06:47,646 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 23:06:47,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 23:06:47,646 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 23:06:47,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 23:06:47,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 23:06:47,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 23:06:47,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 23:06:47,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 23:06:47,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:47,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 23:06:47,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 23:06:47,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 23:06:47,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 23:06:47,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 23:06:47,647 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 23:06:47,647 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-16 23:06:47,647 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 23:06:47,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 23:06:47,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 23:06:47,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 23:06:47,851 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 23:06:47,851 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 23:06:47,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/05-lval_ls_08-glob_fld_2_rc.i [2021-10-16 23:06:47,891 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65715afa3/cbdc6770abb24875b3b867fd526ea16f/FLAG32243addf [2021-10-16 23:06:48,325 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 23:06:48,325 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/05-lval_ls_08-glob_fld_2_rc.i [2021-10-16 23:06:48,337 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65715afa3/cbdc6770abb24875b3b867fd526ea16f/FLAG32243addf [2021-10-16 23:06:48,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65715afa3/cbdc6770abb24875b3b867fd526ea16f [2021-10-16 23:06:48,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 23:06:48,351 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 23:06:48,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:48,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 23:06:48,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 23:06:48,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:48" (1/1) ... [2021-10-16 23:06:48,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf3aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:48, skipping insertion in model container [2021-10-16 23:06:48,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:06:48" (1/1) ... [2021-10-16 23:06:48,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 23:06:48,420 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 23:06:48,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:48,681 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 23:06:48,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:06:48,735 INFO L208 MainTranslator]: Completed translation [2021-10-16 23:06:48,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:48 WrapperNode [2021-10-16 23:06:48,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 23:06:48,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:48,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 23:06:48,737 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 23:06:48,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:48" (1/1) ... [2021-10-16 23:06:48,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:48" (1/1) ... [2021-10-16 23:06:48,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 23:06:48,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 23:06:48,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 23:06:48,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 23:06:48,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:48" (1/1) ... [2021-10-16 23:06:48,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:48" (1/1) ... [2021-10-16 23:06:48,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:48" (1/1) ... [2021-10-16 23:06:48,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:48" (1/1) ... [2021-10-16 23:06:48,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:48" (1/1) ... [2021-10-16 23:06:48,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:48" (1/1) ... [2021-10-16 23:06:48,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:48" (1/1) ... [2021-10-16 23:06:48,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 23:06:48,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 23:06:48,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 23:06:48,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 23:06:48,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:48" (1/1) ... [2021-10-16 23:06:48,816 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:48,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 23:06:48,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 23:06:48,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 23:06:48,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 23:06:48,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 23:06:48,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 23:06:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 23:06:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 23:06:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 23:06:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 23:06:48,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 23:06:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 23:06:48,879 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 23:06:49,159 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 23:06:49,160 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-16 23:06:49,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:49 BoogieIcfgContainer [2021-10-16 23:06:49,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 23:06:49,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 23:06:49,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 23:06:49,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 23:06:49,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:06:48" (1/3) ... [2021-10-16 23:06:49,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab893db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:49, skipping insertion in model container [2021-10-16 23:06:49,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:06:48" (2/3) ... [2021-10-16 23:06:49,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab893db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:06:49, skipping insertion in model container [2021-10-16 23:06:49,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:06:49" (3/3) ... [2021-10-16 23:06:49,171 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_08-glob_fld_2_rc.i [2021-10-16 23:06:49,173 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 23:06:49,174 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-16 23:06:49,174 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 23:06:49,211 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,212 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,212 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,212 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,212 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,217 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,218 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,218 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,218 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,218 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,218 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,221 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,222 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,223 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,229 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,231 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,232 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,232 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,232 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~post4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,236 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,236 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,237 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,237 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,237 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:06:49,238 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-16 23:06:49,264 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 23:06:49,268 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 23:06:49,268 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-16 23:06:49,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 94 transitions, 198 flow [2021-10-16 23:06:49,308 INFO L129 PetriNetUnfolder]: 0/92 cut-off events. [2021-10-16 23:06:49,308 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:49,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 92 events. 0/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 124 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-10-16 23:06:49,309 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 94 transitions, 198 flow [2021-10-16 23:06:49,312 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 92 transitions, 190 flow [2021-10-16 23:06:49,323 INFO L129 PetriNetUnfolder]: 0/51 cut-off events. [2021-10-16 23:06:49,323 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:06:49,323 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:49,324 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] [2021-10-16 23:06:49,324 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2021-10-16 23:06:49,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:49,327 INFO L82 PathProgramCache]: Analyzing trace with hash 135431935, now seen corresponding path program 1 times [2021-10-16 23:06:49,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:49,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617564948] [2021-10-16 23:06:49,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:49,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:49,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:06:49,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:49,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617564948] [2021-10-16 23:06:49,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617564948] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:49,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:49,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:06:49,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123301978] [2021-10-16 23:06:49,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:06:49,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:49,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:06:49,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:06:49,595 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 94 [2021-10-16 23:06:49,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 92 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:49,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:49,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 94 [2021-10-16 23:06:49,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:50,895 INFO L129 PetriNetUnfolder]: 7707/16139 cut-off events. [2021-10-16 23:06:50,896 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:06:50,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28121 conditions, 16139 events. 7707/16139 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 145207 event pairs, 3705 based on Foata normal form. 0/14896 useless extension candidates. Maximal degree in co-relation 28097. Up to 6972 conditions per place. [2021-10-16 23:06:50,988 INFO L132 encePairwiseOnDemand]: 78/94 looper letters, 123 selfloop transitions, 35 changer transitions 0/208 dead transitions. [2021-10-16 23:06:50,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 208 transitions, 738 flow [2021-10-16 23:06:50,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:06:50,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:06:50,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 471 transitions. [2021-10-16 23:06:51,002 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8351063829787234 [2021-10-16 23:06:51,003 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 471 transitions. [2021-10-16 23:06:51,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 471 transitions. [2021-10-16 23:06:51,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:51,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 471 transitions. [2021-10-16 23:06:51,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:51,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:51,012 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:51,013 INFO L186 Difference]: Start difference. First operand has 99 places, 92 transitions, 190 flow. Second operand 6 states and 471 transitions. [2021-10-16 23:06:51,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 208 transitions, 738 flow [2021-10-16 23:06:51,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 208 transitions, 736 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:06:51,019 INFO L242 Difference]: Finished difference. Result has 106 places, 129 transitions, 428 flow [2021-10-16 23:06:51,020 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=428, PETRI_PLACES=106, PETRI_TRANSITIONS=129} [2021-10-16 23:06:51,021 INFO L334 CegarLoopForPetriNet]: 99 programPoint places, 7 predicate places. [2021-10-16 23:06:51,021 INFO L470 AbstractCegarLoop]: Abstraction has has 106 places, 129 transitions, 428 flow [2021-10-16 23:06:51,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:51,022 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:51,022 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:51,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 23:06:51,022 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2021-10-16 23:06:51,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:51,023 INFO L82 PathProgramCache]: Analyzing trace with hash 372707437, now seen corresponding path program 1 times [2021-10-16 23:06:51,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:51,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258216515] [2021-10-16 23:06:51,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:51,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:51,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:06:51,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:51,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258216515] [2021-10-16 23:06:51,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258216515] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:51,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:51,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:06:51,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588964432] [2021-10-16 23:06:51,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:06:51,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:51,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:06:51,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:06:51,129 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 94 [2021-10-16 23:06:51,129 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 129 transitions, 428 flow. Second operand has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:51,129 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:51,129 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 94 [2021-10-16 23:06:51,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:52,842 INFO L129 PetriNetUnfolder]: 11063/22088 cut-off events. [2021-10-16 23:06:52,842 INFO L130 PetriNetUnfolder]: For 7262/7272 co-relation queries the response was YES. [2021-10-16 23:06:52,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49606 conditions, 22088 events. 11063/22088 cut-off events. For 7262/7272 co-relation queries the response was YES. Maximal size of possible extension queue 680. Compared 201364 event pairs, 5174 based on Foata normal form. 234/21629 useless extension candidates. Maximal degree in co-relation 49580. Up to 11058 conditions per place. [2021-10-16 23:06:52,954 INFO L132 encePairwiseOnDemand]: 78/94 looper letters, 156 selfloop transitions, 46 changer transitions 0/256 dead transitions. [2021-10-16 23:06:52,955 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 256 transitions, 1208 flow [2021-10-16 23:06:52,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:06:52,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:06:52,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 471 transitions. [2021-10-16 23:06:52,956 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8351063829787234 [2021-10-16 23:06:52,956 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 471 transitions. [2021-10-16 23:06:52,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 471 transitions. [2021-10-16 23:06:52,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:52,957 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 471 transitions. [2021-10-16 23:06:52,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 78.5) internal successors, (471), 6 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:52,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:52,959 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:52,959 INFO L186 Difference]: Start difference. First operand has 106 places, 129 transitions, 428 flow. Second operand 6 states and 471 transitions. [2021-10-16 23:06:52,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 256 transitions, 1208 flow [2021-10-16 23:06:52,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 256 transitions, 1208 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-16 23:06:52,988 INFO L242 Difference]: Finished difference. Result has 116 places, 174 transitions, 830 flow [2021-10-16 23:06:52,988 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=830, PETRI_PLACES=116, PETRI_TRANSITIONS=174} [2021-10-16 23:06:52,988 INFO L334 CegarLoopForPetriNet]: 99 programPoint places, 17 predicate places. [2021-10-16 23:06:52,988 INFO L470 AbstractCegarLoop]: Abstraction has has 116 places, 174 transitions, 830 flow [2021-10-16 23:06:52,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:52,989 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:52,989 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] [2021-10-16 23:06:52,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 23:06:52,989 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2021-10-16 23:06:52,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:52,990 INFO L82 PathProgramCache]: Analyzing trace with hash 2125064287, now seen corresponding path program 1 times [2021-10-16 23:06:52,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:52,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886022098] [2021-10-16 23:06:52,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:52,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:06:53,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 23:06:53,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:06:53,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886022098] [2021-10-16 23:06:53,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886022098] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:06:53,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:06:53,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:06:53,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693074277] [2021-10-16 23:06:53,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:06:53,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:06:53,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:06:53,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:06:53,064 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 94 [2021-10-16 23:06:53,064 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 174 transitions, 830 flow. Second operand has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:53,065 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:06:53,065 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 94 [2021-10-16 23:06:53,065 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:06:54,935 INFO L129 PetriNetUnfolder]: 10519/21217 cut-off events. [2021-10-16 23:06:54,935 INFO L130 PetriNetUnfolder]: For 25743/25811 co-relation queries the response was YES. [2021-10-16 23:06:55,006 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58533 conditions, 21217 events. 10519/21217 cut-off events. For 25743/25811 co-relation queries the response was YES. Maximal size of possible extension queue 631. Compared 194922 event pairs, 4457 based on Foata normal form. 0/21143 useless extension candidates. Maximal degree in co-relation 58501. Up to 10230 conditions per place. [2021-10-16 23:06:55,067 INFO L132 encePairwiseOnDemand]: 88/94 looper letters, 442 selfloop transitions, 5 changer transitions 62/565 dead transitions. [2021-10-16 23:06:55,067 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 565 transitions, 4410 flow [2021-10-16 23:06:55,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:06:55,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:06:55,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 450 transitions. [2021-10-16 23:06:55,069 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7978723404255319 [2021-10-16 23:06:55,069 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 450 transitions. [2021-10-16 23:06:55,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 450 transitions. [2021-10-16 23:06:55,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:06:55,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 450 transitions. [2021-10-16 23:06:55,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:55,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:55,072 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:55,072 INFO L186 Difference]: Start difference. First operand has 116 places, 174 transitions, 830 flow. Second operand 6 states and 450 transitions. [2021-10-16 23:06:55,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 565 transitions, 4410 flow [2021-10-16 23:06:55,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 565 transitions, 4370 flow, removed 20 selfloop flow, removed 0 redundant places. [2021-10-16 23:06:55,143 INFO L242 Difference]: Finished difference. Result has 120 places, 159 transitions, 732 flow [2021-10-16 23:06:55,144 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=732, PETRI_PLACES=120, PETRI_TRANSITIONS=159} [2021-10-16 23:06:55,144 INFO L334 CegarLoopForPetriNet]: 99 programPoint places, 21 predicate places. [2021-10-16 23:06:55,144 INFO L470 AbstractCegarLoop]: Abstraction has has 120 places, 159 transitions, 732 flow [2021-10-16 23:06:55,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 6 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:06:55,144 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:06:55,145 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:06:55,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 23:06:55,145 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2021-10-16 23:06:55,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:06:55,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1920713343, now seen corresponding path program 1 times [2021-10-16 23:06:55,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:06:55,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297600848] [2021-10-16 23:06:55,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:06:55,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:06:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:06:55,158 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 23:06:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 23:06:55,184 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-16 23:06:55,185 INFO L631 BasicCegarLoop]: Counterexample is feasible [2021-10-16 23:06:55,185 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:55,186 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:55,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 23:06:55,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-16 23:06:55,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:55,187 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:06:55,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 23:06:55,192 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 23:06:55,192 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 23:06:55,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:06:55 BasicIcfg [2021-10-16 23:06:55,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 23:06:55,212 INFO L168 Benchmark]: Toolchain (without parser) took 6860.80 ms. Allocated memory was 211.8 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 159.0 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 414.5 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:55,213 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 211.8 MB. Free memory was 176.5 MB in the beginning and 176.4 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:06:55,213 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.09 ms. Allocated memory is still 211.8 MB. Free memory was 158.8 MB in the beginning and 179.6 MB in the end (delta: -20.8 MB). Peak memory consumption was 8.3 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:55,213 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.47 ms. Allocated memory is still 211.8 MB. Free memory was 179.6 MB in the beginning and 177.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:55,214 INFO L168 Benchmark]: Boogie Preprocessor took 27.72 ms. Allocated memory is still 211.8 MB. Free memory was 177.6 MB in the beginning and 176.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:55,214 INFO L168 Benchmark]: RCFGBuilder took 352.07 ms. Allocated memory is still 211.8 MB. Free memory was 176.2 MB in the beginning and 164.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:55,214 INFO L168 Benchmark]: TraceAbstraction took 6049.51 ms. Allocated memory was 211.8 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 163.6 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 418.8 MB. Max. memory is 8.0 GB. [2021-10-16 23:06:55,216 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 211.8 MB. Free memory was 176.5 MB in the beginning and 176.4 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 383.09 ms. Allocated memory is still 211.8 MB. Free memory was 158.8 MB in the beginning and 179.6 MB in the end (delta: -20.8 MB). Peak memory consumption was 8.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 43.47 ms. Allocated memory is still 211.8 MB. Free memory was 179.6 MB in the beginning and 177.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.72 ms. Allocated memory is still 211.8 MB. Free memory was 177.6 MB in the beginning and 176.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 352.07 ms. Allocated memory is still 211.8 MB. Free memory was 176.2 MB in the beginning and 164.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6049.51 ms. Allocated memory was 211.8 MB in the beginning and 2.0 GB in the end (delta: 1.8 GB). Free memory was 163.6 MB in the beginning and 1.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 418.8 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: 677]: the program contains a data race the program contains a data race We found a FailurePath: [L672-L675] 0 struct { int x; int y; } data; VAL [data={6:0}] [L681] 0 pthread_t id, id2; VAL [data={6:0}] [L682] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={6:0}] [L683] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={6:0}] [L677] 2 data.x VAL [arg={0:0}, arg={0:0}, data={6:0}, data.x=0] [L677] 1 data.x VAL [arg={0:0}, arg={0:0}, data={6:0}, data.x=0] - UnprovableResult [Line: 684]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 683]: 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: 682]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 120 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5927.7ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 5371.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 44.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 113 SDtfs, 102 SDslu, 0 SDs, 0 SdLazy, 838 SolverSat, 188 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 585.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 71.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=830occurred in iteration=2, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 14.5ms SsaConstructionTime, 75.7ms SatisfiabilityAnalysisTime, 281.9ms InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-16 23:06:55,278 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...