/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/09-regions_01-list_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-eaa536417960c97dc4122e532ee2691877b99d76-eaa5364 [2021-10-16 23:06:59,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 23:06:59,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 23:06:59,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 23:06:59,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 23:06:59,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 23:06:59,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 23:06:59,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 23:06:59,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 23:06:59,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 23:06:59,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 23:06:59,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 23:06:59,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 23:06:59,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 23:06:59,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 23:06:59,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 23:06:59,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 23:06:59,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 23:06:59,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 23:06:59,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 23:06:59,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 23:06:59,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 23:06:59,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 23:06:59,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 23:06:59,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-16 23:06:59,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 23:06:59,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 23:06:59,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 23:06:59,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 23:06:59,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 23:06:59,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 23:06:59,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 23:06:59,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 23:06:59,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 23:06:59,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 23:06:59,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 23:06:59,943 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 23:06:59,963 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 23:06:59,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 23:06:59,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 23:06:59,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 23:06:59,964 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 23:06:59,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 23:06:59,965 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 23:06:59,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 23:06:59,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 23:06:59,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 23:06:59,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 23:06:59,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 23:06:59,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 23:06:59,965 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 23:06:59,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 23:06:59,966 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 23:06:59,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 23:06:59,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 23:06:59,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 23:06:59,966 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 23:06:59,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 23:06:59,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:06:59,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 23:06:59,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 23:06:59,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 23:06:59,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 23:06:59,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 23:06:59,971 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 23:06:59,972 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-16 23:06:59,972 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2021-10-16 23:07:00,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 23:07:00,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 23:07:00,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 23:07:00,187 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 23:07:00,191 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 23:07:00,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/09-regions_01-list_rc.i [2021-10-16 23:07:00,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8615df4da/efce76c7780b4fbca585f1576e27d257/FLAGc323c9cd3 [2021-10-16 23:07:00,619 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 23:07:00,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/09-regions_01-list_rc.i [2021-10-16 23:07:00,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8615df4da/efce76c7780b4fbca585f1576e27d257/FLAGc323c9cd3 [2021-10-16 23:07:00,982 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8615df4da/efce76c7780b4fbca585f1576e27d257 [2021-10-16 23:07:00,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 23:07:00,984 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-16 23:07:00,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 23:07:00,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 23:07:00,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 23:07:00,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:07:00" (1/1) ... [2021-10-16 23:07:00,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e00417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:00, skipping insertion in model container [2021-10-16 23:07:00,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:07:00" (1/1) ... [2021-10-16 23:07:00,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 23:07:01,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 23:07:01,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:07:01,410 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 23:07:01,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 23:07:01,500 INFO L208 MainTranslator]: Completed translation [2021-10-16 23:07:01,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:01 WrapperNode [2021-10-16 23:07:01,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 23:07:01,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 23:07:01,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 23:07:01,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 23:07:01,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:01" (1/1) ... [2021-10-16 23:07:01,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:01" (1/1) ... [2021-10-16 23:07:01,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 23:07:01,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 23:07:01,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 23:07:01,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 23:07:01,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:01" (1/1) ... [2021-10-16 23:07:01,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:01" (1/1) ... [2021-10-16 23:07:01,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:01" (1/1) ... [2021-10-16 23:07:01,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:01" (1/1) ... [2021-10-16 23:07:01,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:01" (1/1) ... [2021-10-16 23:07:01,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:01" (1/1) ... [2021-10-16 23:07:01,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:01" (1/1) ... [2021-10-16 23:07:01,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 23:07:01,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 23:07:01,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 23:07:01,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 23:07:01,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:01" (1/1) ... [2021-10-16 23:07:01,582 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 23:07:01,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-16 23:07:01,599 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 23:07:01,608 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 23:07:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 23:07:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-16 23:07:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 23:07:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 23:07:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 23:07:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-16 23:07:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 23:07:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-16 23:07:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-10-16 23:07:01,630 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-10-16 23:07:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 23:07:01,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 23:07:01,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 23:07:01,631 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 23:07:02,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 23:07:02,032 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-16 23:07:02,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:07:02 BoogieIcfgContainer [2021-10-16 23:07:02,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 23:07:02,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 23:07:02,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 23:07:02,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 23:07:02,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:07:00" (1/3) ... [2021-10-16 23:07:02,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3e37cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:07:02, skipping insertion in model container [2021-10-16 23:07:02,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:07:01" (2/3) ... [2021-10-16 23:07:02,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3e37cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:07:02, skipping insertion in model container [2021-10-16 23:07:02,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:07:02" (3/3) ... [2021-10-16 23:07:02,039 INFO L111 eAbstractionObserver]: Analyzing ICFG 09-regions_01-list_rc.i [2021-10-16 23:07:02,043 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 23:07:02,043 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-10-16 23:07:02,043 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 23:07:02,070 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,071 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,071 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,071 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,071 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,071 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,071 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,071 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,071 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,072 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,072 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,072 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,072 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,072 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,072 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,072 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,072 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,072 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,072 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,072 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,073 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,073 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,073 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,073 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,073 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,073 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,073 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,073 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,073 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,073 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,073 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,074 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,074 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,074 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,074 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,074 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,074 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,075 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,075 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,075 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,075 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,075 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,075 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,075 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,075 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,075 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,075 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,075 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,075 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,076 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,076 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,076 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,076 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,076 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,076 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,076 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,076 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,076 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,076 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,076 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,077 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,077 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,077 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,077 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,077 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,077 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,077 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,077 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,077 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,077 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,077 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,077 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,078 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,078 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,078 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,078 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,078 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,078 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,078 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,078 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,078 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,078 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,078 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,079 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,079 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,079 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,079 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,079 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,079 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,079 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,079 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,079 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,079 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,079 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,080 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,080 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,080 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,080 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,080 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,080 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,080 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,080 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,080 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,080 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,081 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,081 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,081 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,081 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,081 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,081 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,081 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,081 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,081 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,081 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,081 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,081 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,081 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,082 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,082 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,082 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,082 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,082 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,082 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,082 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,082 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,082 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,082 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,082 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,082 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,082 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,082 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,083 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,083 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,083 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,083 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,083 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,083 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,083 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,083 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,083 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,083 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,083 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,083 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,083 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem35.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem35.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem35.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem35.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,084 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem35.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,085 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem35.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,085 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,086 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem35.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem35.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,086 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,086 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem35.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem35.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem35.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem35.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,086 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,087 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,087 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,087 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,087 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,087 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,088 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,089 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,089 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,089 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,089 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,090 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,090 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,090 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,090 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,090 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,090 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,090 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,090 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,090 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,090 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,091 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,091 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,091 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,091 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,091 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,091 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,091 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,091 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,092 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,092 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,092 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,092 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,092 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,092 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,092 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,092 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,092 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,092 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,092 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,092 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,092 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,092 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,092 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,093 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,093 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,093 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,093 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,093 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,095 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,096 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,096 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,096 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,096 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,096 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,115 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,115 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,115 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~malloc32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,115 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,115 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem35.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,115 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,115 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,116 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem35.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,116 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,116 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~p.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,116 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,116 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,116 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,116 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,116 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_init_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,116 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_init_#in~p.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,116 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,116 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,116 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,117 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 23:07:02,120 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-16 23:07:02,155 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 23:07:02,160 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 23:07:02,160 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-10-16 23:07:02,171 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 199 places, 195 transitions, 395 flow [2021-10-16 23:07:02,220 INFO L129 PetriNetUnfolder]: 0/194 cut-off events. [2021-10-16 23:07:02,220 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:07:02,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 194 events. 0/194 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 75 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-10-16 23:07:02,221 INFO L82 GeneralOperation]: Start removeDead. Operand has 199 places, 195 transitions, 395 flow [2021-10-16 23:07:02,225 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 193 places, 189 transitions, 381 flow [2021-10-16 23:07:02,231 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-10-16 23:07:02,231 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:07:02,231 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:02,231 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] [2021-10-16 23:07:02,232 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:02,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:02,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1689251034, now seen corresponding path program 1 times [2021-10-16 23:07:02,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:02,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426731998] [2021-10-16 23:07:02,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:02,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:02,513 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 23:07:02,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:02,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426731998] [2021-10-16 23:07:02,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426731998] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:02,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:02,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:07:02,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920243981] [2021-10-16 23:07:02,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:07:02,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:02,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:07:02,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:07:02,532 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 195 [2021-10-16 23:07:02,536 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 189 transitions, 381 flow. Second operand has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 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 23:07:02,536 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:02,536 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 195 [2021-10-16 23:07:02,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:02,832 INFO L129 PetriNetUnfolder]: 216/865 cut-off events. [2021-10-16 23:07:02,832 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:07:02,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1377 conditions, 865 events. 216/865 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4207 event pairs, 216 based on Foata normal form. 0/824 useless extension candidates. Maximal degree in co-relation 1236. Up to 498 conditions per place. [2021-10-16 23:07:02,838 INFO L132 encePairwiseOnDemand]: 183/195 looper letters, 65 selfloop transitions, 10 changer transitions 0/187 dead transitions. [2021-10-16 23:07:02,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 187 transitions, 527 flow [2021-10-16 23:07:02,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:07:02,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:07:02,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 779 transitions. [2021-10-16 23:07:02,849 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6658119658119658 [2021-10-16 23:07:02,849 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 779 transitions. [2021-10-16 23:07:02,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 779 transitions. [2021-10-16 23:07:02,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:02,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 779 transitions. [2021-10-16 23:07:02,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.83333333333334) internal successors, (779), 6 states have internal predecessors, (779), 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 23:07:02,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 23:07:02,862 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 23:07:02,863 INFO L186 Difference]: Start difference. First operand has 193 places, 189 transitions, 381 flow. Second operand 6 states and 779 transitions. [2021-10-16 23:07:02,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 187 transitions, 527 flow [2021-10-16 23:07:02,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 187 transitions, 526 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-16 23:07:02,870 INFO L242 Difference]: Finished difference. Result has 195 places, 187 transitions, 396 flow [2021-10-16 23:07:02,872 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=396, PETRI_PLACES=195, PETRI_TRANSITIONS=187} [2021-10-16 23:07:02,873 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 2 predicate places. [2021-10-16 23:07:02,873 INFO L470 AbstractCegarLoop]: Abstraction has has 195 places, 187 transitions, 396 flow [2021-10-16 23:07:02,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 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 23:07:02,874 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:02,874 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] [2021-10-16 23:07:02,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 23:07:02,874 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:02,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:02,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1789698529, now seen corresponding path program 1 times [2021-10-16 23:07:02,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:02,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845064273] [2021-10-16 23:07:02,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:02,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:02,963 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 23:07:02,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:02,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845064273] [2021-10-16 23:07:02,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845064273] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:02,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:02,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:07:02,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756467253] [2021-10-16 23:07:02,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:07:02,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:02,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:07:02,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:07:02,966 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 195 [2021-10-16 23:07:02,967 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 187 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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 23:07:02,967 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:02,967 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 195 [2021-10-16 23:07:02,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:03,128 INFO L129 PetriNetUnfolder]: 216/863 cut-off events. [2021-10-16 23:07:03,129 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-16 23:07:03,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1383 conditions, 863 events. 216/863 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4178 event pairs, 216 based on Foata normal form. 0/824 useless extension candidates. Maximal degree in co-relation 1277. Up to 496 conditions per place. [2021-10-16 23:07:03,133 INFO L132 encePairwiseOnDemand]: 183/195 looper letters, 63 selfloop transitions, 10 changer transitions 0/185 dead transitions. [2021-10-16 23:07:03,133 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 185 transitions, 538 flow [2021-10-16 23:07:03,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:07:03,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:07:03,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 777 transitions. [2021-10-16 23:07:03,135 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6641025641025641 [2021-10-16 23:07:03,135 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 777 transitions. [2021-10-16 23:07:03,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 777 transitions. [2021-10-16 23:07:03,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:03,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 777 transitions. [2021-10-16 23:07:03,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.5) internal successors, (777), 6 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 23:07:03,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 23:07:03,139 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 23:07:03,139 INFO L186 Difference]: Start difference. First operand has 195 places, 187 transitions, 396 flow. Second operand 6 states and 777 transitions. [2021-10-16 23:07:03,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 185 transitions, 538 flow [2021-10-16 23:07:03,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 185 transitions, 518 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-10-16 23:07:03,146 INFO L242 Difference]: Finished difference. Result has 193 places, 185 transitions, 392 flow [2021-10-16 23:07:03,146 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=392, PETRI_PLACES=193, PETRI_TRANSITIONS=185} [2021-10-16 23:07:03,147 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 0 predicate places. [2021-10-16 23:07:03,147 INFO L470 AbstractCegarLoop]: Abstraction has has 193 places, 185 transitions, 392 flow [2021-10-16 23:07:03,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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 23:07:03,147 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:03,147 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] [2021-10-16 23:07:03,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 23:07:03,148 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:03,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:03,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1105213705, now seen corresponding path program 1 times [2021-10-16 23:07:03,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:03,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122048953] [2021-10-16 23:07:03,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:03,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:03,223 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 23:07:03,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:03,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122048953] [2021-10-16 23:07:03,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122048953] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:03,224 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:03,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 23:07:03,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137851666] [2021-10-16 23:07:03,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 23:07:03,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:03,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 23:07:03,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 23:07:03,226 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 195 [2021-10-16 23:07:03,226 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 185 transitions, 392 flow. Second operand has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 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 23:07:03,226 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:03,226 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 195 [2021-10-16 23:07:03,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:03,259 INFO L129 PetriNetUnfolder]: 2/238 cut-off events. [2021-10-16 23:07:03,260 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:07:03,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 238 events. 2/238 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 197 event pairs, 2 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 172. Up to 13 conditions per place. [2021-10-16 23:07:03,261 INFO L132 encePairwiseOnDemand]: 192/195 looper letters, 8 selfloop transitions, 2 changer transitions 0/184 dead transitions. [2021-10-16 23:07:03,261 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 184 transitions, 410 flow [2021-10-16 23:07:03,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 23:07:03,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-16 23:07:03,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 563 transitions. [2021-10-16 23:07:03,262 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9623931623931624 [2021-10-16 23:07:03,262 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 563 transitions. [2021-10-16 23:07:03,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 563 transitions. [2021-10-16 23:07:03,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:03,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 563 transitions. [2021-10-16 23:07:03,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 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 23:07:03,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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 23:07:03,265 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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 23:07:03,265 INFO L186 Difference]: Start difference. First operand has 193 places, 185 transitions, 392 flow. Second operand 3 states and 563 transitions. [2021-10-16 23:07:03,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 184 transitions, 410 flow [2021-10-16 23:07:03,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 184 transitions, 390 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-10-16 23:07:03,269 INFO L242 Difference]: Finished difference. Result has 189 places, 184 transitions, 374 flow [2021-10-16 23:07:03,269 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=189, PETRI_TRANSITIONS=184} [2021-10-16 23:07:03,269 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, -4 predicate places. [2021-10-16 23:07:03,270 INFO L470 AbstractCegarLoop]: Abstraction has has 189 places, 184 transitions, 374 flow [2021-10-16 23:07:03,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 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 23:07:03,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:03,270 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] [2021-10-16 23:07:03,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 23:07:03,270 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:03,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:03,271 INFO L82 PathProgramCache]: Analyzing trace with hash -2094164371, now seen corresponding path program 1 times [2021-10-16 23:07:03,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:03,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635351996] [2021-10-16 23:07:03,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:03,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:03,398 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 23:07:03,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:03,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635351996] [2021-10-16 23:07:03,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635351996] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:03,399 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:03,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:07:03,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803848905] [2021-10-16 23:07:03,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:07:03,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:03,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:07:03,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:07:03,405 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 195 [2021-10-16 23:07:03,405 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 184 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 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 23:07:03,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:03,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 195 [2021-10-16 23:07:03,406 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:03,617 INFO L129 PetriNetUnfolder]: 261/956 cut-off events. [2021-10-16 23:07:03,618 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-16 23:07:03,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1555 conditions, 956 events. 261/956 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4807 event pairs, 261 based on Foata normal form. 0/915 useless extension candidates. Maximal degree in co-relation 1483. Up to 588 conditions per place. [2021-10-16 23:07:03,621 INFO L132 encePairwiseOnDemand]: 189/195 looper letters, 65 selfloop transitions, 5 changer transitions 0/183 dead transitions. [2021-10-16 23:07:03,622 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 183 transitions, 512 flow [2021-10-16 23:07:03,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:07:03,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:07:03,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 785 transitions. [2021-10-16 23:07:03,624 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6709401709401709 [2021-10-16 23:07:03,624 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 785 transitions. [2021-10-16 23:07:03,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 785 transitions. [2021-10-16 23:07:03,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:03,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 785 transitions. [2021-10-16 23:07:03,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 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 23:07:03,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 23:07:03,628 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 23:07:03,629 INFO L186 Difference]: Start difference. First operand has 189 places, 184 transitions, 374 flow. Second operand 6 states and 785 transitions. [2021-10-16 23:07:03,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 183 transitions, 512 flow [2021-10-16 23:07:03,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 183 transitions, 508 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:07:03,632 INFO L242 Difference]: Finished difference. Result has 191 places, 183 transitions, 378 flow [2021-10-16 23:07:03,632 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=378, PETRI_PLACES=191, PETRI_TRANSITIONS=183} [2021-10-16 23:07:03,632 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, -2 predicate places. [2021-10-16 23:07:03,632 INFO L470 AbstractCegarLoop]: Abstraction has has 191 places, 183 transitions, 378 flow [2021-10-16 23:07:03,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 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 23:07:03,633 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:03,633 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 23:07:03,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 23:07:03,633 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:03,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:03,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1451903986, now seen corresponding path program 1 times [2021-10-16 23:07:03,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:03,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769668763] [2021-10-16 23:07:03,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:03,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:03,767 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 23:07:03,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:03,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769668763] [2021-10-16 23:07:03,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769668763] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:03,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:03,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:07:03,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490617716] [2021-10-16 23:07:03,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:07:03,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:03,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:07:03,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:07:03,772 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 195 [2021-10-16 23:07:03,773 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 183 transitions, 378 flow. Second operand has 6 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 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 23:07:03,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:03,773 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 195 [2021-10-16 23:07:03,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:04,021 INFO L129 PetriNetUnfolder]: 298/1117 cut-off events. [2021-10-16 23:07:04,022 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-16 23:07:04,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1795 conditions, 1117 events. 298/1117 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5907 event pairs, 216 based on Foata normal form. 0/1086 useless extension candidates. Maximal degree in co-relation 1674. Up to 616 conditions per place. [2021-10-16 23:07:04,026 INFO L132 encePairwiseOnDemand]: 180/195 looper letters, 66 selfloop transitions, 38 changer transitions 0/220 dead transitions. [2021-10-16 23:07:04,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 220 transitions, 660 flow [2021-10-16 23:07:04,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:07:04,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:07:04,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 837 transitions. [2021-10-16 23:07:04,028 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7153846153846154 [2021-10-16 23:07:04,028 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 837 transitions. [2021-10-16 23:07:04,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 837 transitions. [2021-10-16 23:07:04,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:04,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 837 transitions. [2021-10-16 23:07:04,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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 23:07:04,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 23:07:04,031 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 23:07:04,031 INFO L186 Difference]: Start difference. First operand has 191 places, 183 transitions, 378 flow. Second operand 6 states and 837 transitions. [2021-10-16 23:07:04,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 220 transitions, 660 flow [2021-10-16 23:07:04,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 220 transitions, 650 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-10-16 23:07:04,035 INFO L242 Difference]: Finished difference. Result has 196 places, 220 transitions, 622 flow [2021-10-16 23:07:04,036 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=622, PETRI_PLACES=196, PETRI_TRANSITIONS=220} [2021-10-16 23:07:04,036 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 3 predicate places. [2021-10-16 23:07:04,036 INFO L470 AbstractCegarLoop]: Abstraction has has 196 places, 220 transitions, 622 flow [2021-10-16 23:07:04,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 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 23:07:04,036 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:04,036 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:04,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 23:07:04,037 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:04,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:04,037 INFO L82 PathProgramCache]: Analyzing trace with hash 416460279, now seen corresponding path program 1 times [2021-10-16 23:07:04,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:04,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827095402] [2021-10-16 23:07:04,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:04,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:04,128 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 23:07:04,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:04,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827095402] [2021-10-16 23:07:04,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827095402] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:04,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:04,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 23:07:04,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22304955] [2021-10-16 23:07:04,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 23:07:04,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:04,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 23:07:04,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-16 23:07:04,130 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 195 [2021-10-16 23:07:04,131 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 220 transitions, 622 flow. Second operand has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 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 23:07:04,131 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:04,131 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 195 [2021-10-16 23:07:04,131 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:04,369 INFO L129 PetriNetUnfolder]: 340/1243 cut-off events. [2021-10-16 23:07:04,370 INFO L130 PetriNetUnfolder]: For 282/323 co-relation queries the response was YES. [2021-10-16 23:07:04,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2536 conditions, 1243 events. 340/1243 cut-off events. For 282/323 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6825 event pairs, 176 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 2409. Up to 689 conditions per place. [2021-10-16 23:07:04,374 INFO L132 encePairwiseOnDemand]: 180/195 looper letters, 102 selfloop transitions, 38 changer transitions 0/257 dead transitions. [2021-10-16 23:07:04,374 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 257 transitions, 1040 flow [2021-10-16 23:07:04,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 23:07:04,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-16 23:07:04,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 837 transitions. [2021-10-16 23:07:04,389 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7153846153846154 [2021-10-16 23:07:04,389 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 837 transitions. [2021-10-16 23:07:04,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 837 transitions. [2021-10-16 23:07:04,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:04,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 837 transitions. [2021-10-16 23:07:04,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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 23:07:04,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 23:07:04,392 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 195.0) internal successors, (1365), 7 states have internal predecessors, (1365), 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 23:07:04,392 INFO L186 Difference]: Start difference. First operand has 196 places, 220 transitions, 622 flow. Second operand 6 states and 837 transitions. [2021-10-16 23:07:04,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 257 transitions, 1040 flow [2021-10-16 23:07:04,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 257 transitions, 1040 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-16 23:07:04,397 INFO L242 Difference]: Finished difference. Result has 206 places, 257 transitions, 940 flow [2021-10-16 23:07:04,398 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=940, PETRI_PLACES=206, PETRI_TRANSITIONS=257} [2021-10-16 23:07:04,398 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 13 predicate places. [2021-10-16 23:07:04,398 INFO L470 AbstractCegarLoop]: Abstraction has has 206 places, 257 transitions, 940 flow [2021-10-16 23:07:04,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 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 23:07:04,398 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:04,398 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:04,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-16 23:07:04,399 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:04,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:04,399 INFO L82 PathProgramCache]: Analyzing trace with hash 509179829, now seen corresponding path program 1 times [2021-10-16 23:07:04,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:04,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505524446] [2021-10-16 23:07:04,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:04,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:04,556 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 23:07:04,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:04,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505524446] [2021-10-16 23:07:04,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505524446] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:04,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:04,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:04,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939142567] [2021-10-16 23:07:04,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:04,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:04,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:04,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:04,562 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 195 [2021-10-16 23:07:04,563 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 257 transitions, 940 flow. Second operand has 13 states, 13 states have (on average 104.15384615384616) internal successors, (1354), 13 states have internal predecessors, (1354), 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 23:07:04,563 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:04,563 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 195 [2021-10-16 23:07:04,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:05,384 INFO L129 PetriNetUnfolder]: 478/1646 cut-off events. [2021-10-16 23:07:05,385 INFO L130 PetriNetUnfolder]: For 934/934 co-relation queries the response was YES. [2021-10-16 23:07:05,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3962 conditions, 1646 events. 478/1646 cut-off events. For 934/934 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 9677 event pairs, 0 based on Foata normal form. 4/1631 useless extension candidates. Maximal degree in co-relation 3817. Up to 689 conditions per place. [2021-10-16 23:07:05,393 INFO L132 encePairwiseOnDemand]: 175/195 looper letters, 267 selfloop transitions, 60 changer transitions 0/422 dead transitions. [2021-10-16 23:07:05,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 422 transitions, 2266 flow [2021-10-16 23:07:05,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 23:07:05,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-10-16 23:07:05,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2667 transitions. [2021-10-16 23:07:05,399 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5698717948717948 [2021-10-16 23:07:05,399 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2667 transitions. [2021-10-16 23:07:05,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2667 transitions. [2021-10-16 23:07:05,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:05,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2667 transitions. [2021-10-16 23:07:05,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 111.125) internal successors, (2667), 24 states have internal predecessors, (2667), 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 23:07:05,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 195.0) internal successors, (4875), 25 states have internal predecessors, (4875), 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 23:07:05,410 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 195.0) internal successors, (4875), 25 states have internal predecessors, (4875), 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 23:07:05,410 INFO L186 Difference]: Start difference. First operand has 206 places, 257 transitions, 940 flow. Second operand 24 states and 2667 transitions. [2021-10-16 23:07:05,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 422 transitions, 2266 flow [2021-10-16 23:07:05,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 422 transitions, 2202 flow, removed 32 selfloop flow, removed 0 redundant places. [2021-10-16 23:07:05,420 INFO L242 Difference]: Finished difference. Result has 235 places, 296 transitions, 1235 flow [2021-10-16 23:07:05,420 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1235, PETRI_PLACES=235, PETRI_TRANSITIONS=296} [2021-10-16 23:07:05,420 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 42 predicate places. [2021-10-16 23:07:05,420 INFO L470 AbstractCegarLoop]: Abstraction has has 235 places, 296 transitions, 1235 flow [2021-10-16 23:07:05,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 104.15384615384616) internal successors, (1354), 13 states have internal predecessors, (1354), 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 23:07:05,421 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:05,421 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:05,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-16 23:07:05,421 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:05,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:05,422 INFO L82 PathProgramCache]: Analyzing trace with hash 2085926682, now seen corresponding path program 1 times [2021-10-16 23:07:05,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:05,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048468916] [2021-10-16 23:07:05,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:05,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:05,589 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 23:07:05,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:05,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048468916] [2021-10-16 23:07:05,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048468916] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:05,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:05,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-10-16 23:07:05,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009354654] [2021-10-16 23:07:05,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 23:07:05,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:05,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 23:07:05,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-10-16 23:07:05,591 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 195 [2021-10-16 23:07:05,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 296 transitions, 1235 flow. Second operand has 13 states, 13 states have (on average 104.61538461538461) internal successors, (1360), 13 states have internal predecessors, (1360), 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 23:07:05,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:05,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 195 [2021-10-16 23:07:05,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:06,443 INFO L129 PetriNetUnfolder]: 475/1628 cut-off events. [2021-10-16 23:07:06,444 INFO L130 PetriNetUnfolder]: For 1785/1797 co-relation queries the response was YES. [2021-10-16 23:07:06,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4392 conditions, 1628 events. 475/1628 cut-off events. For 1785/1797 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 9649 event pairs, 0 based on Foata normal form. 16/1629 useless extension candidates. Maximal degree in co-relation 4237. Up to 681 conditions per place. [2021-10-16 23:07:06,453 INFO L132 encePairwiseOnDemand]: 175/195 looper letters, 275 selfloop transitions, 64 changer transitions 0/437 dead transitions. [2021-10-16 23:07:06,453 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 437 transitions, 2589 flow [2021-10-16 23:07:06,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-16 23:07:06,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-10-16 23:07:06,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2667 transitions. [2021-10-16 23:07:06,458 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5698717948717948 [2021-10-16 23:07:06,458 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2667 transitions. [2021-10-16 23:07:06,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2667 transitions. [2021-10-16 23:07:06,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:06,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2667 transitions. [2021-10-16 23:07:06,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 111.125) internal successors, (2667), 24 states have internal predecessors, (2667), 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 23:07:06,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 195.0) internal successors, (4875), 25 states have internal predecessors, (4875), 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 23:07:06,469 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 195.0) internal successors, (4875), 25 states have internal predecessors, (4875), 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 23:07:06,469 INFO L186 Difference]: Start difference. First operand has 235 places, 296 transitions, 1235 flow. Second operand 24 states and 2667 transitions. [2021-10-16 23:07:06,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 437 transitions, 2589 flow [2021-10-16 23:07:06,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 437 transitions, 2585 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-16 23:07:06,479 INFO L242 Difference]: Finished difference. Result has 261 places, 321 transitions, 1597 flow [2021-10-16 23:07:06,480 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=1231, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1597, PETRI_PLACES=261, PETRI_TRANSITIONS=321} [2021-10-16 23:07:06,480 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 68 predicate places. [2021-10-16 23:07:06,480 INFO L470 AbstractCegarLoop]: Abstraction has has 261 places, 321 transitions, 1597 flow [2021-10-16 23:07:06,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 104.61538461538461) internal successors, (1360), 13 states have internal predecessors, (1360), 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 23:07:06,481 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:06,481 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:06,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-16 23:07:06,481 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:06,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:06,481 INFO L82 PathProgramCache]: Analyzing trace with hash 19311935, now seen corresponding path program 1 times [2021-10-16 23:07:06,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:06,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262496452] [2021-10-16 23:07:06,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:06,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:06,752 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 23:07:06,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:06,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262496452] [2021-10-16 23:07:06,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262496452] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:06,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:06,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-16 23:07:06,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367714346] [2021-10-16 23:07:06,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 23:07:06,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:06,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 23:07:06,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-10-16 23:07:06,754 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:07:06,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 321 transitions, 1597 flow. Second operand has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:07:06,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:06,756 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:07:06,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:08,534 INFO L129 PetriNetUnfolder]: 1493/4282 cut-off events. [2021-10-16 23:07:08,534 INFO L130 PetriNetUnfolder]: For 7115/7151 co-relation queries the response was YES. [2021-10-16 23:07:08,547 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12729 conditions, 4282 events. 1493/4282 cut-off events. For 7115/7151 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 30617 event pairs, 160 based on Foata normal form. 9/4241 useless extension candidates. Maximal degree in co-relation 12558. Up to 973 conditions per place. [2021-10-16 23:07:08,564 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 558 selfloop transitions, 120 changer transitions 0/763 dead transitions. [2021-10-16 23:07:08,564 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 763 transitions, 5539 flow [2021-10-16 23:07:08,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-16 23:07:08,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-10-16 23:07:08,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3007 transitions. [2021-10-16 23:07:08,574 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5140170940170941 [2021-10-16 23:07:08,574 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3007 transitions. [2021-10-16 23:07:08,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3007 transitions. [2021-10-16 23:07:08,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:08,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3007 transitions. [2021-10-16 23:07:08,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 100.23333333333333) internal successors, (3007), 30 states have internal predecessors, (3007), 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 23:07:08,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 195.0) internal successors, (6045), 31 states have internal predecessors, (6045), 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 23:07:08,586 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 195.0) internal successors, (6045), 31 states have internal predecessors, (6045), 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 23:07:08,586 INFO L186 Difference]: Start difference. First operand has 261 places, 321 transitions, 1597 flow. Second operand 30 states and 3007 transitions. [2021-10-16 23:07:08,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 763 transitions, 5539 flow [2021-10-16 23:07:08,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 763 transitions, 5422 flow, removed 32 selfloop flow, removed 11 redundant places. [2021-10-16 23:07:08,615 INFO L242 Difference]: Finished difference. Result has 299 places, 429 transitions, 2752 flow [2021-10-16 23:07:08,615 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=1535, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=2752, PETRI_PLACES=299, PETRI_TRANSITIONS=429} [2021-10-16 23:07:08,616 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 106 predicate places. [2021-10-16 23:07:08,616 INFO L470 AbstractCegarLoop]: Abstraction has has 299 places, 429 transitions, 2752 flow [2021-10-16 23:07:08,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:07:08,616 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:08,616 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:08,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-16 23:07:08,617 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:08,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:08,617 INFO L82 PathProgramCache]: Analyzing trace with hash -338287431, now seen corresponding path program 2 times [2021-10-16 23:07:08,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:08,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487435753] [2021-10-16 23:07:08,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:08,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:08,963 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 23:07:08,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:08,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487435753] [2021-10-16 23:07:08,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487435753] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:08,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:08,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-10-16 23:07:08,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151857128] [2021-10-16 23:07:08,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-16 23:07:08,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:08,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-16 23:07:08,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2021-10-16 23:07:08,966 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 195 [2021-10-16 23:07:08,967 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 429 transitions, 2752 flow. Second operand has 22 states, 22 states have (on average 86.36363636363636) internal successors, (1900), 22 states have internal predecessors, (1900), 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 23:07:08,967 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:08,967 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 195 [2021-10-16 23:07:08,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:11,690 INFO L129 PetriNetUnfolder]: 1854/5401 cut-off events. [2021-10-16 23:07:11,691 INFO L130 PetriNetUnfolder]: For 13261/13327 co-relation queries the response was YES. [2021-10-16 23:07:11,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18104 conditions, 5401 events. 1854/5401 cut-off events. For 13261/13327 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 42023 event pairs, 122 based on Foata normal form. 29/5373 useless extension candidates. Maximal degree in co-relation 17901. Up to 1060 conditions per place. [2021-10-16 23:07:11,733 INFO L132 encePairwiseOnDemand]: 157/195 looper letters, 694 selfloop transitions, 280 changer transitions 0/1055 dead transitions. [2021-10-16 23:07:11,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 1055 transitions, 8841 flow [2021-10-16 23:07:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-10-16 23:07:11,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2021-10-16 23:07:11,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 5402 transitions. [2021-10-16 23:07:11,740 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.47763041556145003 [2021-10-16 23:07:11,740 INFO L72 ComplementDD]: Start complementDD. Operand 58 states and 5402 transitions. [2021-10-16 23:07:11,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 5402 transitions. [2021-10-16 23:07:11,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:11,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 58 states and 5402 transitions. [2021-10-16 23:07:11,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 59 states, 58 states have (on average 93.13793103448276) internal successors, (5402), 58 states have internal predecessors, (5402), 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 23:07:11,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 59 states, 59 states have (on average 195.0) internal successors, (11505), 59 states have internal predecessors, (11505), 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 23:07:11,770 INFO L81 ComplementDD]: Finished complementDD. Result has 59 states, 59 states have (on average 195.0) internal successors, (11505), 59 states have internal predecessors, (11505), 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 23:07:11,770 INFO L186 Difference]: Start difference. First operand has 299 places, 429 transitions, 2752 flow. Second operand 58 states and 5402 transitions. [2021-10-16 23:07:11,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 1055 transitions, 8841 flow [2021-10-16 23:07:11,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 1055 transitions, 8815 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-10-16 23:07:11,830 INFO L242 Difference]: Finished difference. Result has 392 places, 584 transitions, 5214 flow [2021-10-16 23:07:11,831 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=2734, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=58, PETRI_FLOW=5214, PETRI_PLACES=392, PETRI_TRANSITIONS=584} [2021-10-16 23:07:11,831 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 199 predicate places. [2021-10-16 23:07:11,831 INFO L470 AbstractCegarLoop]: Abstraction has has 392 places, 584 transitions, 5214 flow [2021-10-16 23:07:11,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 86.36363636363636) internal successors, (1900), 22 states have internal predecessors, (1900), 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 23:07:11,831 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:11,832 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:11,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-16 23:07:11,832 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:11,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:11,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1233374527, now seen corresponding path program 3 times [2021-10-16 23:07:11,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:11,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321485629] [2021-10-16 23:07:11,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:11,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:12,131 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 23:07:12,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:12,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321485629] [2021-10-16 23:07:12,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321485629] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:12,131 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:12,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-10-16 23:07:12,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168970230] [2021-10-16 23:07:12,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-16 23:07:12,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:12,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-16 23:07:12,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2021-10-16 23:07:12,133 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 195 [2021-10-16 23:07:12,134 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 584 transitions, 5214 flow. Second operand has 22 states, 22 states have (on average 86.36363636363636) internal successors, (1900), 22 states have internal predecessors, (1900), 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 23:07:12,134 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:12,134 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 195 [2021-10-16 23:07:12,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:15,338 INFO L129 PetriNetUnfolder]: 2730/7914 cut-off events. [2021-10-16 23:07:15,339 INFO L130 PetriNetUnfolder]: For 30240/30358 co-relation queries the response was YES. [2021-10-16 23:07:15,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29927 conditions, 7914 events. 2730/7914 cut-off events. For 30240/30358 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 67362 event pairs, 175 based on Foata normal form. 58/7891 useless extension candidates. Maximal degree in co-relation 29820. Up to 2123 conditions per place. [2021-10-16 23:07:15,485 INFO L132 encePairwiseOnDemand]: 157/195 looper letters, 940 selfloop transitions, 296 changer transitions 0/1317 dead transitions. [2021-10-16 23:07:15,485 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 1317 transitions, 13438 flow [2021-10-16 23:07:15,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-10-16 23:07:15,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2021-10-16 23:07:15,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 6021 transitions. [2021-10-16 23:07:15,491 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.47502958579881654 [2021-10-16 23:07:15,492 INFO L72 ComplementDD]: Start complementDD. Operand 65 states and 6021 transitions. [2021-10-16 23:07:15,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 6021 transitions. [2021-10-16 23:07:15,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:15,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 65 states and 6021 transitions. [2021-10-16 23:07:15,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 66 states, 65 states have (on average 92.63076923076923) internal successors, (6021), 65 states have internal predecessors, (6021), 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 23:07:15,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 66 states, 66 states have (on average 195.0) internal successors, (12870), 66 states have internal predecessors, (12870), 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 23:07:15,514 INFO L81 ComplementDD]: Finished complementDD. Result has 66 states, 66 states have (on average 195.0) internal successors, (12870), 66 states have internal predecessors, (12870), 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 23:07:15,514 INFO L186 Difference]: Start difference. First operand has 392 places, 584 transitions, 5214 flow. Second operand 65 states and 6021 transitions. [2021-10-16 23:07:15,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 1317 transitions, 13438 flow [2021-10-16 23:07:15,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 1317 transitions, 13090 flow, removed 133 selfloop flow, removed 11 redundant places. [2021-10-16 23:07:15,750 INFO L242 Difference]: Finished difference. Result has 467 places, 733 transitions, 7625 flow [2021-10-16 23:07:15,751 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=4987, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=157, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=65, PETRI_FLOW=7625, PETRI_PLACES=467, PETRI_TRANSITIONS=733} [2021-10-16 23:07:15,751 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 274 predicate places. [2021-10-16 23:07:15,751 INFO L470 AbstractCegarLoop]: Abstraction has has 467 places, 733 transitions, 7625 flow [2021-10-16 23:07:15,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 86.36363636363636) internal successors, (1900), 22 states have internal predecessors, (1900), 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 23:07:15,752 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:15,752 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:15,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-16 23:07:15,752 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:15,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:15,752 INFO L82 PathProgramCache]: Analyzing trace with hash 562228671, now seen corresponding path program 4 times [2021-10-16 23:07:15,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:15,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941953118] [2021-10-16 23:07:15,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:15,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:16,058 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 23:07:16,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:16,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941953118] [2021-10-16 23:07:16,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941953118] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:16,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:16,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-16 23:07:16,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470513396] [2021-10-16 23:07:16,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 23:07:16,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:16,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 23:07:16,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-10-16 23:07:16,061 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:07:16,062 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 733 transitions, 7625 flow. Second operand has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:07:16,062 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:16,062 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:07:16,062 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:19,224 INFO L129 PetriNetUnfolder]: 2754/7994 cut-off events. [2021-10-16 23:07:19,224 INFO L130 PetriNetUnfolder]: For 37858/37966 co-relation queries the response was YES. [2021-10-16 23:07:19,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31627 conditions, 7994 events. 2754/7994 cut-off events. For 37858/37966 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 68204 event pairs, 180 based on Foata normal form. 41/7951 useless extension candidates. Maximal degree in co-relation 31495. Up to 2780 conditions per place. [2021-10-16 23:07:19,303 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 749 selfloop transitions, 320 changer transitions 0/1154 dead transitions. [2021-10-16 23:07:19,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 517 places, 1154 transitions, 12918 flow [2021-10-16 23:07:19,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-16 23:07:19,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2021-10-16 23:07:19,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 4937 transitions. [2021-10-16 23:07:19,308 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4964303670186023 [2021-10-16 23:07:19,308 INFO L72 ComplementDD]: Start complementDD. Operand 51 states and 4937 transitions. [2021-10-16 23:07:19,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 4937 transitions. [2021-10-16 23:07:19,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:19,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 51 states and 4937 transitions. [2021-10-16 23:07:19,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 52 states, 51 states have (on average 96.80392156862744) internal successors, (4937), 51 states have internal predecessors, (4937), 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 23:07:19,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 52 states, 52 states have (on average 195.0) internal successors, (10140), 52 states have internal predecessors, (10140), 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 23:07:19,324 INFO L81 ComplementDD]: Finished complementDD. Result has 52 states, 52 states have (on average 195.0) internal successors, (10140), 52 states have internal predecessors, (10140), 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 23:07:19,324 INFO L186 Difference]: Start difference. First operand has 467 places, 733 transitions, 7625 flow. Second operand 51 states and 4937 transitions. [2021-10-16 23:07:19,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 517 places, 1154 transitions, 12918 flow [2021-10-16 23:07:19,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 1154 transitions, 12585 flow, removed 119 selfloop flow, removed 16 redundant places. [2021-10-16 23:07:19,723 INFO L242 Difference]: Finished difference. Result has 515 places, 786 transitions, 9146 flow [2021-10-16 23:07:19,724 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=7318, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=733, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=267, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=9146, PETRI_PLACES=515, PETRI_TRANSITIONS=786} [2021-10-16 23:07:19,724 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 322 predicate places. [2021-10-16 23:07:19,724 INFO L470 AbstractCegarLoop]: Abstraction has has 515 places, 786 transitions, 9146 flow [2021-10-16 23:07:19,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:07:19,725 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:19,725 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:19,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-16 23:07:19,725 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:19,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:19,725 INFO L82 PathProgramCache]: Analyzing trace with hash -505592135, now seen corresponding path program 5 times [2021-10-16 23:07:19,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:19,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529806024] [2021-10-16 23:07:19,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:19,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:20,007 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 23:07:20,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:20,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529806024] [2021-10-16 23:07:20,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529806024] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:20,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:20,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-16 23:07:20,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583882710] [2021-10-16 23:07:20,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 23:07:20,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:20,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 23:07:20,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-10-16 23:07:20,009 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:07:20,011 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 786 transitions, 9146 flow. Second operand has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:07:20,011 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:20,011 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:07:20,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:23,448 INFO L129 PetriNetUnfolder]: 2785/8078 cut-off events. [2021-10-16 23:07:23,448 INFO L130 PetriNetUnfolder]: For 47066/47182 co-relation queries the response was YES. [2021-10-16 23:07:23,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33655 conditions, 8078 events. 2785/8078 cut-off events. For 47066/47182 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 69249 event pairs, 181 based on Foata normal form. 48/8042 useless extension candidates. Maximal degree in co-relation 33515. Up to 2792 conditions per place. [2021-10-16 23:07:23,536 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 767 selfloop transitions, 337 changer transitions 0/1189 dead transitions. [2021-10-16 23:07:23,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 1189 transitions, 14358 flow [2021-10-16 23:07:23,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-10-16 23:07:23,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-10-16 23:07:23,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 5209 transitions. [2021-10-16 23:07:23,541 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.49468186134852804 [2021-10-16 23:07:23,541 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 5209 transitions. [2021-10-16 23:07:23,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 5209 transitions. [2021-10-16 23:07:23,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:23,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 5209 transitions. [2021-10-16 23:07:23,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 96.46296296296296) internal successors, (5209), 54 states have internal predecessors, (5209), 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 23:07:23,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 195.0) internal successors, (10725), 55 states have internal predecessors, (10725), 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 23:07:23,554 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 195.0) internal successors, (10725), 55 states have internal predecessors, (10725), 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 23:07:23,554 INFO L186 Difference]: Start difference. First operand has 515 places, 786 transitions, 9146 flow. Second operand 54 states and 5209 transitions. [2021-10-16 23:07:23,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 1189 transitions, 14358 flow [2021-10-16 23:07:23,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 1189 transitions, 13994 flow, removed 43 selfloop flow, removed 33 redundant places. [2021-10-16 23:07:23,991 INFO L242 Difference]: Finished difference. Result has 542 places, 812 transitions, 10267 flow [2021-10-16 23:07:23,992 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=8798, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=786, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=311, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=10267, PETRI_PLACES=542, PETRI_TRANSITIONS=812} [2021-10-16 23:07:23,992 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 349 predicate places. [2021-10-16 23:07:23,992 INFO L470 AbstractCegarLoop]: Abstraction has has 542 places, 812 transitions, 10267 flow [2021-10-16 23:07:23,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:07:23,993 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:23,993 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:23,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-16 23:07:23,993 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:23,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:23,993 INFO L82 PathProgramCache]: Analyzing trace with hash 136008977, now seen corresponding path program 6 times [2021-10-16 23:07:23,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:23,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94488460] [2021-10-16 23:07:23,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:23,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:24,332 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 23:07:24,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:24,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94488460] [2021-10-16 23:07:24,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94488460] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:24,332 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:24,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-16 23:07:24,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22601602] [2021-10-16 23:07:24,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 23:07:24,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:24,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 23:07:24,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-10-16 23:07:24,334 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:07:24,335 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 812 transitions, 10267 flow. Second operand has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:07:24,335 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:24,335 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:07:24,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:27,960 INFO L129 PetriNetUnfolder]: 2824/8195 cut-off events. [2021-10-16 23:07:27,960 INFO L130 PetriNetUnfolder]: For 57529/57649 co-relation queries the response was YES. [2021-10-16 23:07:28,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35651 conditions, 8195 events. 2824/8195 cut-off events. For 57529/57649 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 70485 event pairs, 182 based on Foata normal form. 55/8166 useless extension candidates. Maximal degree in co-relation 35504. Up to 2810 conditions per place. [2021-10-16 23:07:28,058 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 779 selfloop transitions, 367 changer transitions 0/1231 dead transitions. [2021-10-16 23:07:28,058 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 596 places, 1231 transitions, 15860 flow [2021-10-16 23:07:28,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-16 23:07:28,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2021-10-16 23:07:28,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 5306 transitions. [2021-10-16 23:07:28,062 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4947319347319347 [2021-10-16 23:07:28,062 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 5306 transitions. [2021-10-16 23:07:28,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 5306 transitions. [2021-10-16 23:07:28,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:28,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 5306 transitions. [2021-10-16 23:07:28,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 96.47272727272727) internal successors, (5306), 55 states have internal predecessors, (5306), 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 23:07:28,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 195.0) internal successors, (10920), 56 states have internal predecessors, (10920), 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 23:07:28,078 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 195.0) internal successors, (10920), 56 states have internal predecessors, (10920), 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 23:07:28,078 INFO L186 Difference]: Start difference. First operand has 542 places, 812 transitions, 10267 flow. Second operand 55 states and 5306 transitions. [2021-10-16 23:07:28,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 596 places, 1231 transitions, 15860 flow [2021-10-16 23:07:28,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 554 places, 1231 transitions, 15427 flow, removed 26 selfloop flow, removed 42 redundant places. [2021-10-16 23:07:28,672 INFO L242 Difference]: Finished difference. Result has 565 places, 847 transitions, 11682 flow [2021-10-16 23:07:28,672 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=9848, PETRI_DIFFERENCE_MINUEND_PLACES=500, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=812, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=334, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=55, PETRI_FLOW=11682, PETRI_PLACES=565, PETRI_TRANSITIONS=847} [2021-10-16 23:07:28,673 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 372 predicate places. [2021-10-16 23:07:28,673 INFO L470 AbstractCegarLoop]: Abstraction has has 565 places, 847 transitions, 11682 flow [2021-10-16 23:07:28,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:07:28,673 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:28,673 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:28,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-16 23:07:28,673 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:28,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:28,674 INFO L82 PathProgramCache]: Analyzing trace with hash 430000803, now seen corresponding path program 7 times [2021-10-16 23:07:28,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:28,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108297411] [2021-10-16 23:07:28,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:28,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:28,934 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 23:07:28,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:28,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108297411] [2021-10-16 23:07:28,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108297411] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:28,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:28,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-16 23:07:28,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409220422] [2021-10-16 23:07:28,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 23:07:28,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:28,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 23:07:28,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-10-16 23:07:28,936 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:07:28,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 847 transitions, 11682 flow. Second operand has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:07:28,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:28,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:07:28,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:32,715 INFO L129 PetriNetUnfolder]: 2857/8303 cut-off events. [2021-10-16 23:07:32,716 INFO L130 PetriNetUnfolder]: For 69852/69970 co-relation queries the response was YES. [2021-10-16 23:07:32,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37693 conditions, 8303 events. 2857/8303 cut-off events. For 69852/69970 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 71810 event pairs, 181 based on Foata normal form. 55/8274 useless extension candidates. Maximal degree in co-relation 37535. Up to 2802 conditions per place. [2021-10-16 23:07:32,803 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 802 selfloop transitions, 384 changer transitions 0/1271 dead transitions. [2021-10-16 23:07:32,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 620 places, 1271 transitions, 17474 flow [2021-10-16 23:07:32,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-10-16 23:07:32,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-10-16 23:07:32,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 5401 transitions. [2021-10-16 23:07:32,808 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4945970695970696 [2021-10-16 23:07:32,809 INFO L72 ComplementDD]: Start complementDD. Operand 56 states and 5401 transitions. [2021-10-16 23:07:32,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 5401 transitions. [2021-10-16 23:07:32,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:32,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 56 states and 5401 transitions. [2021-10-16 23:07:32,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 57 states, 56 states have (on average 96.44642857142857) internal successors, (5401), 56 states have internal predecessors, (5401), 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 23:07:32,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 57 states, 57 states have (on average 195.0) internal successors, (11115), 57 states have internal predecessors, (11115), 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 23:07:32,821 INFO L81 ComplementDD]: Finished complementDD. Result has 57 states, 57 states have (on average 195.0) internal successors, (11115), 57 states have internal predecessors, (11115), 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 23:07:32,821 INFO L186 Difference]: Start difference. First operand has 565 places, 847 transitions, 11682 flow. Second operand 56 states and 5401 transitions. [2021-10-16 23:07:32,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 620 places, 1271 transitions, 17474 flow [2021-10-16 23:07:33,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 581 places, 1271 transitions, 17018 flow, removed 51 selfloop flow, removed 39 redundant places. [2021-10-16 23:07:33,409 INFO L242 Difference]: Finished difference. Result has 595 places, 879 transitions, 13179 flow [2021-10-16 23:07:33,410 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=11228, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=847, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=352, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=56, PETRI_FLOW=13179, PETRI_PLACES=595, PETRI_TRANSITIONS=879} [2021-10-16 23:07:33,410 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 402 predicate places. [2021-10-16 23:07:33,410 INFO L470 AbstractCegarLoop]: Abstraction has has 595 places, 879 transitions, 13179 flow [2021-10-16 23:07:33,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:07:33,410 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:33,411 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:33,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-16 23:07:33,411 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:33,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:33,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1304954809, now seen corresponding path program 8 times [2021-10-16 23:07:33,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:33,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675812409] [2021-10-16 23:07:33,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:33,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:33,748 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 23:07:33,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:33,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675812409] [2021-10-16 23:07:33,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675812409] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:33,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:33,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-10-16 23:07:33,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189337976] [2021-10-16 23:07:33,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-16 23:07:33,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:33,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-16 23:07:33,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2021-10-16 23:07:33,750 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 195 [2021-10-16 23:07:33,751 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 595 places, 879 transitions, 13179 flow. Second operand has 23 states, 23 states have (on average 84.30434782608695) internal successors, (1939), 23 states have internal predecessors, (1939), 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 23:07:33,751 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:33,751 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 195 [2021-10-16 23:07:33,751 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:38,660 INFO L129 PetriNetUnfolder]: 3673/10356 cut-off events. [2021-10-16 23:07:38,660 INFO L130 PetriNetUnfolder]: For 103677/103843 co-relation queries the response was YES. [2021-10-16 23:07:38,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49091 conditions, 10356 events. 3673/10356 cut-off events. For 103677/103843 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 92267 event pairs, 277 based on Foata normal form. 64/10316 useless extension candidates. Maximal degree in co-relation 48919. Up to 2941 conditions per place. [2021-10-16 23:07:38,889 INFO L132 encePairwiseOnDemand]: 155/195 looper letters, 994 selfloop transitions, 455 changer transitions 0/1528 dead transitions. [2021-10-16 23:07:38,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 653 places, 1528 transitions, 22625 flow [2021-10-16 23:07:38,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-16 23:07:38,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-10-16 23:07:38,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 5374 transitions. [2021-10-16 23:07:38,893 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4671012603215993 [2021-10-16 23:07:38,893 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 5374 transitions. [2021-10-16 23:07:38,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 5374 transitions. [2021-10-16 23:07:38,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:38,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 5374 transitions. [2021-10-16 23:07:38,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 91.08474576271186) internal successors, (5374), 59 states have internal predecessors, (5374), 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 23:07:38,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:07:38,905 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:07:38,905 INFO L186 Difference]: Start difference. First operand has 595 places, 879 transitions, 13179 flow. Second operand 59 states and 5374 transitions. [2021-10-16 23:07:38,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 653 places, 1528 transitions, 22625 flow [2021-10-16 23:07:39,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 618 places, 1528 transitions, 22107 flow, removed 92 selfloop flow, removed 35 redundant places. [2021-10-16 23:07:39,891 INFO L242 Difference]: Finished difference. Result has 635 places, 978 transitions, 16365 flow [2021-10-16 23:07:39,891 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=12708, PETRI_DIFFERENCE_MINUEND_PLACES=560, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=879, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=362, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=16365, PETRI_PLACES=635, PETRI_TRANSITIONS=978} [2021-10-16 23:07:39,891 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 442 predicate places. [2021-10-16 23:07:39,891 INFO L470 AbstractCegarLoop]: Abstraction has has 635 places, 978 transitions, 16365 flow [2021-10-16 23:07:39,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 84.30434782608695) internal successors, (1939), 23 states have internal predecessors, (1939), 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 23:07:39,892 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:39,892 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:39,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-16 23:07:39,892 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:39,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:39,892 INFO L82 PathProgramCache]: Analyzing trace with hash -2110626517, now seen corresponding path program 9 times [2021-10-16 23:07:39,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:39,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875334390] [2021-10-16 23:07:39,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:39,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:40,223 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 23:07:40,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:40,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875334390] [2021-10-16 23:07:40,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875334390] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:40,223 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:40,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-16 23:07:40,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087843287] [2021-10-16 23:07:40,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 23:07:40,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:40,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 23:07:40,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-16 23:07:40,225 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 195 [2021-10-16 23:07:40,226 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 978 transitions, 16365 flow. Second operand has 21 states, 21 states have (on average 88.42857142857143) internal successors, (1857), 21 states have internal predecessors, (1857), 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 23:07:40,226 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:40,226 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 195 [2021-10-16 23:07:40,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:45,738 INFO L129 PetriNetUnfolder]: 3708/10435 cut-off events. [2021-10-16 23:07:45,739 INFO L130 PetriNetUnfolder]: For 122592/122824 co-relation queries the response was YES. [2021-10-16 23:07:45,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52608 conditions, 10435 events. 3708/10435 cut-off events. For 122592/122824 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 93067 event pairs, 243 based on Foata normal form. 95/10428 useless extension candidates. Maximal degree in co-relation 52418. Up to 2941 conditions per place. [2021-10-16 23:07:45,918 INFO L132 encePairwiseOnDemand]: 159/195 looper letters, 1013 selfloop transitions, 471 changer transitions 0/1567 dead transitions. [2021-10-16 23:07:45,918 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 693 places, 1567 transitions, 24727 flow [2021-10-16 23:07:45,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-16 23:07:45,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-10-16 23:07:45,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 5619 transitions. [2021-10-16 23:07:45,924 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48839634941329857 [2021-10-16 23:07:45,924 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 5619 transitions. [2021-10-16 23:07:45,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 5619 transitions. [2021-10-16 23:07:45,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:45,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 5619 transitions. [2021-10-16 23:07:45,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 95.23728813559322) internal successors, (5619), 59 states have internal predecessors, (5619), 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 23:07:45,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:07:45,940 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:07:45,941 INFO L186 Difference]: Start difference. First operand has 635 places, 978 transitions, 16365 flow. Second operand 59 states and 5619 transitions. [2021-10-16 23:07:45,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 693 places, 1567 transitions, 24727 flow [2021-10-16 23:07:47,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 660 places, 1567 transitions, 24380 flow, removed 35 selfloop flow, removed 33 redundant places. [2021-10-16 23:07:47,271 INFO L242 Difference]: Finished difference. Result has 670 places, 1011 transitions, 18250 flow [2021-10-16 23:07:47,272 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=16023, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=978, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=438, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=18250, PETRI_PLACES=670, PETRI_TRANSITIONS=1011} [2021-10-16 23:07:47,272 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 477 predicate places. [2021-10-16 23:07:47,272 INFO L470 AbstractCegarLoop]: Abstraction has has 670 places, 1011 transitions, 18250 flow [2021-10-16 23:07:47,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 88.42857142857143) internal successors, (1857), 21 states have internal predecessors, (1857), 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 23:07:47,272 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:47,273 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:47,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-16 23:07:47,273 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:47,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:47,273 INFO L82 PathProgramCache]: Analyzing trace with hash -6303881, now seen corresponding path program 10 times [2021-10-16 23:07:47,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:47,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207787268] [2021-10-16 23:07:47,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:47,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:47,575 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 23:07:47,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:47,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207787268] [2021-10-16 23:07:47,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207787268] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:47,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:47,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-16 23:07:47,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698195559] [2021-10-16 23:07:47,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 23:07:47,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:47,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 23:07:47,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2021-10-16 23:07:47,577 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 195 [2021-10-16 23:07:47,578 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 670 places, 1011 transitions, 18250 flow. Second operand has 21 states, 21 states have (on average 88.42857142857143) internal successors, (1857), 21 states have internal predecessors, (1857), 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 23:07:47,578 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:47,578 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 195 [2021-10-16 23:07:47,578 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:07:53,217 INFO L129 PetriNetUnfolder]: 3752/10550 cut-off events. [2021-10-16 23:07:53,217 INFO L130 PetriNetUnfolder]: For 141621/141855 co-relation queries the response was YES. [2021-10-16 23:07:53,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55661 conditions, 10550 events. 3752/10550 cut-off events. For 141621/141855 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 94384 event pairs, 249 based on Foata normal form. 103/10551 useless extension candidates. Maximal degree in co-relation 55460. Up to 2941 conditions per place. [2021-10-16 23:07:53,363 INFO L132 encePairwiseOnDemand]: 159/195 looper letters, 1023 selfloop transitions, 515 changer transitions 0/1621 dead transitions. [2021-10-16 23:07:53,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 730 places, 1621 transitions, 27341 flow [2021-10-16 23:07:53,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-16 23:07:53,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2021-10-16 23:07:53,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 5802 transitions. [2021-10-16 23:07:53,367 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4877679697351828 [2021-10-16 23:07:53,367 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 5802 transitions. [2021-10-16 23:07:53,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 5802 transitions. [2021-10-16 23:07:53,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:07:53,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 5802 transitions. [2021-10-16 23:07:53,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 95.11475409836065) internal successors, (5802), 61 states have internal predecessors, (5802), 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 23:07:53,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 195.0) internal successors, (12090), 62 states have internal predecessors, (12090), 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 23:07:53,379 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 195.0) internal successors, (12090), 62 states have internal predecessors, (12090), 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 23:07:53,379 INFO L186 Difference]: Start difference. First operand has 670 places, 1011 transitions, 18250 flow. Second operand 61 states and 5802 transitions. [2021-10-16 23:07:53,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 730 places, 1621 transitions, 27341 flow [2021-10-16 23:07:54,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 688 places, 1621 transitions, 26699 flow, removed 42 selfloop flow, removed 42 redundant places. [2021-10-16 23:07:54,777 INFO L242 Difference]: Finished difference. Result has 703 places, 1061 transitions, 20603 flow [2021-10-16 23:07:54,778 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=17615, PETRI_DIFFERENCE_MINUEND_PLACES=628, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1011, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=467, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=20603, PETRI_PLACES=703, PETRI_TRANSITIONS=1061} [2021-10-16 23:07:54,778 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 510 predicate places. [2021-10-16 23:07:54,778 INFO L470 AbstractCegarLoop]: Abstraction has has 703 places, 1061 transitions, 20603 flow [2021-10-16 23:07:54,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 88.42857142857143) internal successors, (1857), 21 states have internal predecessors, (1857), 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 23:07:54,778 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:07:54,778 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:07:54,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-16 23:07:54,778 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:07:54,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:07:54,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1124554137, now seen corresponding path program 11 times [2021-10-16 23:07:54,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:07:54,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031054721] [2021-10-16 23:07:54,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:07:54,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:07:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:07:55,099 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 23:07:55,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:07:55,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031054721] [2021-10-16 23:07:55,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031054721] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:07:55,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:07:55,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-16 23:07:55,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612522291] [2021-10-16 23:07:55,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 23:07:55,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:07:55,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 23:07:55,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-16 23:07:55,101 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 195 [2021-10-16 23:07:55,102 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 703 places, 1061 transitions, 20603 flow. Second operand has 21 states, 21 states have (on average 88.42857142857143) internal successors, (1857), 21 states have internal predecessors, (1857), 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 23:07:55,102 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:07:55,102 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 195 [2021-10-16 23:07:55,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:08:01,002 INFO L129 PetriNetUnfolder]: 3761/10614 cut-off events. [2021-10-16 23:08:01,002 INFO L130 PetriNetUnfolder]: For 157439/157681 co-relation queries the response was YES. [2021-10-16 23:08:01,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57406 conditions, 10614 events. 3761/10614 cut-off events. For 157439/157681 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 95136 event pairs, 272 based on Foata normal form. 112/10622 useless extension candidates. Maximal degree in co-relation 57190. Up to 2941 conditions per place. [2021-10-16 23:08:01,160 INFO L132 encePairwiseOnDemand]: 159/195 looper letters, 1035 selfloop transitions, 538 changer transitions 0/1656 dead transitions. [2021-10-16 23:08:01,160 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 765 places, 1656 transitions, 29542 flow [2021-10-16 23:08:01,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-10-16 23:08:01,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-10-16 23:08:01,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 5982 transitions. [2021-10-16 23:08:01,164 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4869352869352869 [2021-10-16 23:08:01,164 INFO L72 ComplementDD]: Start complementDD. Operand 63 states and 5982 transitions. [2021-10-16 23:08:01,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 5982 transitions. [2021-10-16 23:08:01,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:08:01,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 63 states and 5982 transitions. [2021-10-16 23:08:01,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 64 states, 63 states have (on average 94.95238095238095) internal successors, (5982), 63 states have internal predecessors, (5982), 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 23:08:01,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 64 states, 64 states have (on average 195.0) internal successors, (12480), 64 states have internal predecessors, (12480), 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 23:08:01,176 INFO L81 ComplementDD]: Finished complementDD. Result has 64 states, 64 states have (on average 195.0) internal successors, (12480), 64 states have internal predecessors, (12480), 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 23:08:01,176 INFO L186 Difference]: Start difference. First operand has 703 places, 1061 transitions, 20603 flow. Second operand 63 states and 5982 transitions. [2021-10-16 23:08:01,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 765 places, 1656 transitions, 29542 flow [2021-10-16 23:08:02,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 725 places, 1656 transitions, 28677 flow, removed 95 selfloop flow, removed 40 redundant places. [2021-10-16 23:08:02,911 INFO L242 Difference]: Finished difference. Result has 738 places, 1101 transitions, 22387 flow [2021-10-16 23:08:02,912 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=19765, PETRI_DIFFERENCE_MINUEND_PLACES=663, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1061, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=498, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=551, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=22387, PETRI_PLACES=738, PETRI_TRANSITIONS=1101} [2021-10-16 23:08:02,912 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 545 predicate places. [2021-10-16 23:08:02,912 INFO L470 AbstractCegarLoop]: Abstraction has has 738 places, 1101 transitions, 22387 flow [2021-10-16 23:08:02,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 88.42857142857143) internal successors, (1857), 21 states have internal predecessors, (1857), 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 23:08:02,913 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:08:02,913 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:08:02,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-16 23:08:02,913 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:08:02,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:08:02,913 INFO L82 PathProgramCache]: Analyzing trace with hash 519379007, now seen corresponding path program 12 times [2021-10-16 23:08:02,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:08:02,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714914633] [2021-10-16 23:08:02,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:08:02,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:08:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:08:03,178 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 23:08:03,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:08:03,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714914633] [2021-10-16 23:08:03,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714914633] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:08:03,179 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:08:03,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-10-16 23:08:03,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109279228] [2021-10-16 23:08:03,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-16 23:08:03,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:08:03,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-16 23:08:03,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2021-10-16 23:08:03,180 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 195 [2021-10-16 23:08:03,181 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 738 places, 1101 transitions, 22387 flow. Second operand has 22 states, 22 states have (on average 86.36363636363636) internal successors, (1900), 22 states have internal predecessors, (1900), 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 23:08:03,181 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:08:03,181 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 195 [2021-10-16 23:08:03,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:08:09,415 INFO L129 PetriNetUnfolder]: 3935/11758 cut-off events. [2021-10-16 23:08:09,415 INFO L130 PetriNetUnfolder]: For 191933/192245 co-relation queries the response was YES. [2021-10-16 23:08:09,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64893 conditions, 11758 events. 3935/11758 cut-off events. For 191933/192245 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 112336 event pairs, 444 based on Foata normal form. 140/11777 useless extension candidates. Maximal degree in co-relation 64663. Up to 2293 conditions per place. [2021-10-16 23:08:09,599 INFO L132 encePairwiseOnDemand]: 157/195 looper letters, 1158 selfloop transitions, 550 changer transitions 0/1789 dead transitions. [2021-10-16 23:08:09,599 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 803 places, 1789 transitions, 33491 flow [2021-10-16 23:08:09,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-10-16 23:08:09,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2021-10-16 23:08:09,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 6102 transitions. [2021-10-16 23:08:09,603 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.47412587412587415 [2021-10-16 23:08:09,603 INFO L72 ComplementDD]: Start complementDD. Operand 66 states and 6102 transitions. [2021-10-16 23:08:09,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 6102 transitions. [2021-10-16 23:08:09,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:08:09,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 66 states and 6102 transitions. [2021-10-16 23:08:09,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 67 states, 66 states have (on average 92.45454545454545) internal successors, (6102), 66 states have internal predecessors, (6102), 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 23:08:09,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 67 states, 67 states have (on average 195.0) internal successors, (13065), 67 states have internal predecessors, (13065), 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 23:08:09,614 INFO L81 ComplementDD]: Finished complementDD. Result has 67 states, 67 states have (on average 195.0) internal successors, (13065), 67 states have internal predecessors, (13065), 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 23:08:09,614 INFO L186 Difference]: Start difference. First operand has 738 places, 1101 transitions, 22387 flow. Second operand 66 states and 6102 transitions. [2021-10-16 23:08:09,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 803 places, 1789 transitions, 33491 flow [2021-10-16 23:08:11,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 760 places, 1789 transitions, 32510 flow, removed 150 selfloop flow, removed 43 redundant places. [2021-10-16 23:08:11,819 INFO L242 Difference]: Finished difference. Result has 773 places, 1175 transitions, 24977 flow [2021-10-16 23:08:11,820 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=21534, PETRI_DIFFERENCE_MINUEND_PLACES=695, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=486, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=601, PETRI_DIFFERENCE_SUBTRAHEND_STATES=66, PETRI_FLOW=24977, PETRI_PLACES=773, PETRI_TRANSITIONS=1175} [2021-10-16 23:08:11,820 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 580 predicate places. [2021-10-16 23:08:11,820 INFO L470 AbstractCegarLoop]: Abstraction has has 773 places, 1175 transitions, 24977 flow [2021-10-16 23:08:11,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 86.36363636363636) internal successors, (1900), 22 states have internal predecessors, (1900), 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 23:08:11,821 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:08:11,821 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:08:11,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-16 23:08:11,821 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:08:11,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:08:11,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1130296513, now seen corresponding path program 13 times [2021-10-16 23:08:11,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:08:11,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300741783] [2021-10-16 23:08:11,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:08:11,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:08:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:08:12,071 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 23:08:12,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:08:12,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300741783] [2021-10-16 23:08:12,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300741783] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:08:12,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:08:12,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-16 23:08:12,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648044353] [2021-10-16 23:08:12,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 23:08:12,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:08:12,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 23:08:12,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-10-16 23:08:12,073 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:08:12,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 773 places, 1175 transitions, 24977 flow. Second operand has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:08:12,074 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:08:12,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:08:12,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:08:18,032 INFO L129 PetriNetUnfolder]: 3955/11836 cut-off events. [2021-10-16 23:08:18,032 INFO L130 PetriNetUnfolder]: For 201294/201601 co-relation queries the response was YES. [2021-10-16 23:08:18,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66028 conditions, 11836 events. 3955/11836 cut-off events. For 201294/201601 co-relation queries the response was YES. Maximal size of possible extension queue 272. Compared 113249 event pairs, 389 based on Foata normal form. 125/11828 useless extension candidates. Maximal degree in co-relation 65788. Up to 4942 conditions per place. [2021-10-16 23:08:18,232 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 855 selfloop transitions, 546 changer transitions 0/1486 dead transitions. [2021-10-16 23:08:18,232 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 821 places, 1486 transitions, 30881 flow [2021-10-16 23:08:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-10-16 23:08:18,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-10-16 23:08:18,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 4689 transitions. [2021-10-16 23:08:18,235 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.49073783359497647 [2021-10-16 23:08:18,235 INFO L72 ComplementDD]: Start complementDD. Operand 49 states and 4689 transitions. [2021-10-16 23:08:18,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 4689 transitions. [2021-10-16 23:08:18,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:08:18,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 49 states and 4689 transitions. [2021-10-16 23:08:18,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 50 states, 49 states have (on average 95.6938775510204) internal successors, (4689), 49 states have internal predecessors, (4689), 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 23:08:18,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 50 states, 50 states have (on average 195.0) internal successors, (9750), 50 states have internal predecessors, (9750), 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 23:08:18,244 INFO L81 ComplementDD]: Finished complementDD. Result has 50 states, 50 states have (on average 195.0) internal successors, (9750), 50 states have internal predecessors, (9750), 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 23:08:18,244 INFO L186 Difference]: Start difference. First operand has 773 places, 1175 transitions, 24977 flow. Second operand 49 states and 4689 transitions. [2021-10-16 23:08:18,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 821 places, 1486 transitions, 30881 flow [2021-10-16 23:08:20,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 781 places, 1486 transitions, 30177 flow, removed 198 selfloop flow, removed 40 redundant places. [2021-10-16 23:08:20,608 INFO L242 Difference]: Finished difference. Result has 796 places, 1227 transitions, 27356 flow [2021-10-16 23:08:20,609 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=24280, PETRI_DIFFERENCE_MINUEND_PLACES=733, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=494, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=27356, PETRI_PLACES=796, PETRI_TRANSITIONS=1227} [2021-10-16 23:08:20,609 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 603 predicate places. [2021-10-16 23:08:20,609 INFO L470 AbstractCegarLoop]: Abstraction has has 796 places, 1227 transitions, 27356 flow [2021-10-16 23:08:20,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:08:20,610 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:08:20,610 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:08:20,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-16 23:08:20,610 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:08:20,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:08:20,610 INFO L82 PathProgramCache]: Analyzing trace with hash -2142560199, now seen corresponding path program 14 times [2021-10-16 23:08:20,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:08:20,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477672136] [2021-10-16 23:08:20,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:08:20,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:08:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:08:20,852 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 23:08:20,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:08:20,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477672136] [2021-10-16 23:08:20,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477672136] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:08:20,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:08:20,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-16 23:08:20,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995550864] [2021-10-16 23:08:20,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 23:08:20,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:08:20,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 23:08:20,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-10-16 23:08:20,854 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:08:20,855 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 796 places, 1227 transitions, 27356 flow. Second operand has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:08:20,855 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:08:20,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:08:20,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:08:27,011 INFO L129 PetriNetUnfolder]: 3986/11924 cut-off events. [2021-10-16 23:08:27,011 INFO L130 PetriNetUnfolder]: For 224443/224754 co-relation queries the response was YES. [2021-10-16 23:08:27,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68354 conditions, 11924 events. 3986/11924 cut-off events. For 224443/224754 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 114295 event pairs, 390 based on Foata normal form. 126/11917 useless extension candidates. Maximal degree in co-relation 68107. Up to 4954 conditions per place. [2021-10-16 23:08:27,337 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 873 selfloop transitions, 562 changer transitions 0/1520 dead transitions. [2021-10-16 23:08:27,337 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 847 places, 1520 transitions, 33160 flow [2021-10-16 23:08:27,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-16 23:08:27,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2021-10-16 23:08:27,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 4961 transitions. [2021-10-16 23:08:27,340 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4892504930966469 [2021-10-16 23:08:27,340 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 4961 transitions. [2021-10-16 23:08:27,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 4961 transitions. [2021-10-16 23:08:27,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:08:27,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 4961 transitions. [2021-10-16 23:08:27,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 95.40384615384616) internal successors, (4961), 52 states have internal predecessors, (4961), 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 23:08:27,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 195.0) internal successors, (10335), 53 states have internal predecessors, (10335), 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 23:08:27,349 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 195.0) internal successors, (10335), 53 states have internal predecessors, (10335), 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 23:08:27,349 INFO L186 Difference]: Start difference. First operand has 796 places, 1227 transitions, 27356 flow. Second operand 52 states and 4961 transitions. [2021-10-16 23:08:27,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 847 places, 1520 transitions, 33160 flow [2021-10-16 23:08:29,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 824 places, 1520 transitions, 32718 flow, removed 107 selfloop flow, removed 23 redundant places. [2021-10-16 23:08:29,855 INFO L242 Difference]: Finished difference. Result has 831 places, 1252 transitions, 29636 flow [2021-10-16 23:08:29,856 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=26932, PETRI_DIFFERENCE_MINUEND_PLACES=773, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=537, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=678, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=29636, PETRI_PLACES=831, PETRI_TRANSITIONS=1252} [2021-10-16 23:08:29,856 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 638 predicate places. [2021-10-16 23:08:29,856 INFO L470 AbstractCegarLoop]: Abstraction has has 831 places, 1252 transitions, 29636 flow [2021-10-16 23:08:29,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:08:29,857 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:08:29,857 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:08:29,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-16 23:08:29,857 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:08:29,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:08:29,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1500959087, now seen corresponding path program 15 times [2021-10-16 23:08:29,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:08:29,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066228088] [2021-10-16 23:08:29,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:08:29,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:08:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:08:30,120 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 23:08:30,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:08:30,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066228088] [2021-10-16 23:08:30,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066228088] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:08:30,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:08:30,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-16 23:08:30,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781466465] [2021-10-16 23:08:30,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 23:08:30,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:08:30,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 23:08:30,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-10-16 23:08:30,123 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:08:30,124 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 831 places, 1252 transitions, 29636 flow. Second operand has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:08:30,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:08:30,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:08:30,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:08:36,436 INFO L129 PetriNetUnfolder]: 4025/12042 cut-off events. [2021-10-16 23:08:36,436 INFO L130 PetriNetUnfolder]: For 261514/261829 co-relation queries the response was YES. [2021-10-16 23:08:36,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71803 conditions, 12042 events. 4025/12042 cut-off events. For 261514/261829 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 115716 event pairs, 391 based on Foata normal form. 133/12041 useless extension candidates. Maximal degree in co-relation 71549. Up to 4968 conditions per place. [2021-10-16 23:08:36,736 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 887 selfloop transitions, 591 changer transitions 0/1563 dead transitions. [2021-10-16 23:08:36,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 883 places, 1563 transitions, 36007 flow [2021-10-16 23:08:36,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-10-16 23:08:36,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-10-16 23:08:36,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 5058 transitions. [2021-10-16 23:08:36,739 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48940493468795354 [2021-10-16 23:08:36,739 INFO L72 ComplementDD]: Start complementDD. Operand 53 states and 5058 transitions. [2021-10-16 23:08:36,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 5058 transitions. [2021-10-16 23:08:36,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:08:36,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 53 states and 5058 transitions. [2021-10-16 23:08:36,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 54 states, 53 states have (on average 95.43396226415095) internal successors, (5058), 53 states have internal predecessors, (5058), 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 23:08:36,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 54 states, 54 states have (on average 195.0) internal successors, (10530), 54 states have internal predecessors, (10530), 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 23:08:36,748 INFO L81 ComplementDD]: Finished complementDD. Result has 54 states, 54 states have (on average 195.0) internal successors, (10530), 54 states have internal predecessors, (10530), 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 23:08:36,748 INFO L186 Difference]: Start difference. First operand has 831 places, 1252 transitions, 29636 flow. Second operand 53 states and 5058 transitions. [2021-10-16 23:08:36,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 883 places, 1563 transitions, 36007 flow [2021-10-16 23:08:39,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 844 places, 1563 transitions, 35458 flow, removed 79 selfloop flow, removed 39 redundant places. [2021-10-16 23:08:39,786 INFO L242 Difference]: Finished difference. Result has 855 places, 1288 transitions, 32360 flow [2021-10-16 23:08:39,787 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=29093, PETRI_DIFFERENCE_MINUEND_PLACES=792, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=557, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=53, PETRI_FLOW=32360, PETRI_PLACES=855, PETRI_TRANSITIONS=1288} [2021-10-16 23:08:39,787 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 662 predicate places. [2021-10-16 23:08:39,787 INFO L470 AbstractCegarLoop]: Abstraction has has 855 places, 1288 transitions, 32360 flow [2021-10-16 23:08:39,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:08:39,788 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:08:39,788 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:08:39,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-16 23:08:39,788 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:08:39,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:08:39,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1160127017, now seen corresponding path program 16 times [2021-10-16 23:08:39,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:08:39,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565958285] [2021-10-16 23:08:39,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:08:39,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:08:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:08:40,017 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 23:08:40,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:08:40,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565958285] [2021-10-16 23:08:40,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565958285] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:08:40,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:08:40,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-16 23:08:40,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212607250] [2021-10-16 23:08:40,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 23:08:40,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:08:40,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 23:08:40,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-10-16 23:08:40,019 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:08:40,020 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 855 places, 1288 transitions, 32360 flow. Second operand has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:08:40,020 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:08:40,020 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:08:40,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:08:46,632 INFO L129 PetriNetUnfolder]: 4072/12184 cut-off events. [2021-10-16 23:08:46,633 INFO L130 PetriNetUnfolder]: For 304416/304735 co-relation queries the response was YES. [2021-10-16 23:08:46,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75515 conditions, 12184 events. 4072/12184 cut-off events. For 304416/304735 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 117468 event pairs, 395 based on Foata normal form. 137/12186 useless extension candidates. Maximal degree in co-relation 75250. Up to 4980 conditions per place. [2021-10-16 23:08:46,922 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 909 selfloop transitions, 616 changer transitions 0/1610 dead transitions. [2021-10-16 23:08:46,923 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 908 places, 1610 transitions, 39115 flow [2021-10-16 23:08:46,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-10-16 23:08:46,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-10-16 23:08:46,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 5153 transitions. [2021-10-16 23:08:46,927 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.489363722697056 [2021-10-16 23:08:46,927 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 5153 transitions. [2021-10-16 23:08:46,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 5153 transitions. [2021-10-16 23:08:46,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:08:46,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 5153 transitions. [2021-10-16 23:08:46,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 95.42592592592592) internal successors, (5153), 54 states have internal predecessors, (5153), 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 23:08:46,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 195.0) internal successors, (10725), 55 states have internal predecessors, (10725), 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 23:08:46,937 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 195.0) internal successors, (10725), 55 states have internal predecessors, (10725), 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 23:08:46,937 INFO L186 Difference]: Start difference. First operand has 855 places, 1288 transitions, 32360 flow. Second operand 54 states and 5153 transitions. [2021-10-16 23:08:46,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 908 places, 1610 transitions, 39115 flow [2021-10-16 23:08:50,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 870 places, 1610 transitions, 38430 flow, removed 151 selfloop flow, removed 38 redundant places. [2021-10-16 23:08:50,973 INFO L242 Difference]: Finished difference. Result has 885 places, 1327 transitions, 35264 flow [2021-10-16 23:08:50,974 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=31698, PETRI_DIFFERENCE_MINUEND_PLACES=817, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=577, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=691, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=35264, PETRI_PLACES=885, PETRI_TRANSITIONS=1327} [2021-10-16 23:08:50,974 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 692 predicate places. [2021-10-16 23:08:50,974 INFO L470 AbstractCegarLoop]: Abstraction has has 885 places, 1327 transitions, 35264 flow [2021-10-16 23:08:50,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:08:50,975 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:08:50,975 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:08:50,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-16 23:08:50,975 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:08:50,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:08:50,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1116045167, now seen corresponding path program 17 times [2021-10-16 23:08:50,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:08:50,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454680725] [2021-10-16 23:08:50,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:08:50,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:08:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:08:51,313 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 23:08:51,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:08:51,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454680725] [2021-10-16 23:08:51,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454680725] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:08:51,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:08:51,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-10-16 23:08:51,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287180109] [2021-10-16 23:08:51,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-16 23:08:51,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:08:51,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-16 23:08:51,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2021-10-16 23:08:51,315 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 195 [2021-10-16 23:08:51,315 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 885 places, 1327 transitions, 35264 flow. Second operand has 23 states, 23 states have (on average 84.30434782608695) internal successors, (1939), 23 states have internal predecessors, (1939), 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 23:08:51,315 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:08:51,315 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 195 [2021-10-16 23:08:51,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:08:59,294 INFO L129 PetriNetUnfolder]: 4745/13213 cut-off events. [2021-10-16 23:08:59,294 INFO L130 PetriNetUnfolder]: For 378101/378441 co-relation queries the response was YES. [2021-10-16 23:08:59,499 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85550 conditions, 13213 events. 4745/13213 cut-off events. For 378101/378441 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 124198 event pairs, 413 based on Foata normal form. 134/13212 useless extension candidates. Maximal degree in co-relation 85270. Up to 3750 conditions per place. [2021-10-16 23:08:59,539 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 994 selfloop transitions, 718 changer transitions 0/1791 dead transitions. [2021-10-16 23:08:59,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 941 places, 1791 transitions, 45164 flow [2021-10-16 23:08:59,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-10-16 23:08:59,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2021-10-16 23:08:59,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 5131 transitions. [2021-10-16 23:08:59,544 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4616284300494827 [2021-10-16 23:08:59,544 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 5131 transitions. [2021-10-16 23:08:59,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 5131 transitions. [2021-10-16 23:08:59,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:08:59,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 5131 transitions. [2021-10-16 23:08:59,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 90.01754385964912) internal successors, (5131), 57 states have internal predecessors, (5131), 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 23:08:59,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 195.0) internal successors, (11310), 58 states have internal predecessors, (11310), 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 23:08:59,556 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 195.0) internal successors, (11310), 58 states have internal predecessors, (11310), 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 23:08:59,556 INFO L186 Difference]: Start difference. First operand has 885 places, 1327 transitions, 35264 flow. Second operand 57 states and 5131 transitions. [2021-10-16 23:08:59,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 941 places, 1791 transitions, 45164 flow [2021-10-16 23:09:03,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 906 places, 1791 transitions, 44249 flow, removed 237 selfloop flow, removed 35 redundant places. [2021-10-16 23:09:04,018 INFO L242 Difference]: Finished difference. Result has 921 places, 1438 transitions, 40333 flow [2021-10-16 23:09:04,019 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=34528, PETRI_DIFFERENCE_MINUEND_PLACES=850, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=614, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=679, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=40333, PETRI_PLACES=921, PETRI_TRANSITIONS=1438} [2021-10-16 23:09:04,019 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 728 predicate places. [2021-10-16 23:09:04,019 INFO L470 AbstractCegarLoop]: Abstraction has has 921 places, 1438 transitions, 40333 flow [2021-10-16 23:09:04,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 84.30434782608695) internal successors, (1939), 23 states have internal predecessors, (1939), 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 23:09:04,019 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:09:04,019 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:04,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-16 23:09:04,019 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:09:04,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:09:04,020 INFO L82 PathProgramCache]: Analyzing trace with hash 698785953, now seen corresponding path program 18 times [2021-10-16 23:09:04,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:09:04,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153725579] [2021-10-16 23:09:04,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:09:04,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:09:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:09:04,321 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 23:09:04,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:09:04,321 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153725579] [2021-10-16 23:09:04,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153725579] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:09:04,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:09:04,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-16 23:09:04,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460104195] [2021-10-16 23:09:04,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 23:09:04,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:09:04,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 23:09:04,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-16 23:09:04,323 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 195 [2021-10-16 23:09:04,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 921 places, 1438 transitions, 40333 flow. Second operand has 21 states, 21 states have (on average 88.42857142857143) internal successors, (1857), 21 states have internal predecessors, (1857), 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 23:09:04,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:09:04,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 195 [2021-10-16 23:09:04,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:09:13,308 INFO L129 PetriNetUnfolder]: 4826/13445 cut-off events. [2021-10-16 23:09:13,308 INFO L130 PetriNetUnfolder]: For 440135/440522 co-relation queries the response was YES. [2021-10-16 23:09:13,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92126 conditions, 13445 events. 4826/13445 cut-off events. For 440135/440522 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 127045 event pairs, 411 based on Foata normal form. 166/13476 useless extension candidates. Maximal degree in co-relation 91830. Up to 3744 conditions per place. [2021-10-16 23:09:13,574 INFO L132 encePairwiseOnDemand]: 165/195 looper letters, 1025 selfloop transitions, 748 changer transitions 0/1856 dead transitions. [2021-10-16 23:09:13,574 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 977 places, 1856 transitions, 49549 flow [2021-10-16 23:09:13,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-10-16 23:09:13,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2021-10-16 23:09:13,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 5368 transitions. [2021-10-16 23:09:13,578 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4829509671614935 [2021-10-16 23:09:13,578 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 5368 transitions. [2021-10-16 23:09:13,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 5368 transitions. [2021-10-16 23:09:13,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:09:13,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 5368 transitions. [2021-10-16 23:09:13,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 94.17543859649123) internal successors, (5368), 57 states have internal predecessors, (5368), 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 23:09:13,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 195.0) internal successors, (11310), 58 states have internal predecessors, (11310), 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 23:09:13,587 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 195.0) internal successors, (11310), 58 states have internal predecessors, (11310), 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 23:09:13,587 INFO L186 Difference]: Start difference. First operand has 921 places, 1438 transitions, 40333 flow. Second operand 57 states and 5368 transitions. [2021-10-16 23:09:13,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 977 places, 1856 transitions, 49549 flow [2021-10-16 23:09:18,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 948 places, 1856 transitions, 48960 flow, removed 174 selfloop flow, removed 29 redundant places. [2021-10-16 23:09:18,520 INFO L242 Difference]: Finished difference. Result has 958 places, 1495 transitions, 44643 flow [2021-10-16 23:09:18,521 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=39790, PETRI_DIFFERENCE_MINUEND_PLACES=892, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=691, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=724, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=44643, PETRI_PLACES=958, PETRI_TRANSITIONS=1495} [2021-10-16 23:09:18,521 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 765 predicate places. [2021-10-16 23:09:18,522 INFO L470 AbstractCegarLoop]: Abstraction has has 958 places, 1495 transitions, 44643 flow [2021-10-16 23:09:18,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 88.42857142857143) internal successors, (1857), 21 states have internal predecessors, (1857), 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 23:09:18,522 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:09:18,522 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:18,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-16 23:09:18,522 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:09:18,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:09:18,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1436301587, now seen corresponding path program 19 times [2021-10-16 23:09:18,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:09:18,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393161320] [2021-10-16 23:09:18,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:09:18,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:09:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:09:18,860 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 23:09:18,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:09:18,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393161320] [2021-10-16 23:09:18,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393161320] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:09:18,860 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:09:18,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-16 23:09:18,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317417990] [2021-10-16 23:09:18,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 23:09:18,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:09:18,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 23:09:18,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2021-10-16 23:09:18,862 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 195 [2021-10-16 23:09:18,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 958 places, 1495 transitions, 44643 flow. Second operand has 21 states, 21 states have (on average 88.42857142857143) internal successors, (1857), 21 states have internal predecessors, (1857), 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 23:09:18,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:09:18,863 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 195 [2021-10-16 23:09:18,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:09:28,455 INFO L129 PetriNetUnfolder]: 4929/13731 cut-off events. [2021-10-16 23:09:28,455 INFO L130 PetriNetUnfolder]: For 511662/512046 co-relation queries the response was YES. [2021-10-16 23:09:28,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99120 conditions, 13731 events. 4929/13731 cut-off events. For 511662/512046 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 130432 event pairs, 419 based on Foata normal form. 168/13763 useless extension candidates. Maximal degree in co-relation 98813. Up to 3739 conditions per place. [2021-10-16 23:09:28,776 INFO L132 encePairwiseOnDemand]: 165/195 looper letters, 1036 selfloop transitions, 832 changer transitions 0/1951 dead transitions. [2021-10-16 23:09:28,776 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1016 places, 1951 transitions, 55487 flow [2021-10-16 23:09:28,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-16 23:09:28,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-10-16 23:09:28,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 5551 transitions. [2021-10-16 23:09:28,787 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4824858757062147 [2021-10-16 23:09:28,787 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 5551 transitions. [2021-10-16 23:09:28,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 5551 transitions. [2021-10-16 23:09:28,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:09:28,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 5551 transitions. [2021-10-16 23:09:28,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 94.08474576271186) internal successors, (5551), 59 states have internal predecessors, (5551), 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 23:09:28,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:09:28,796 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:09:28,796 INFO L186 Difference]: Start difference. First operand has 958 places, 1495 transitions, 44643 flow. Second operand 59 states and 5551 transitions. [2021-10-16 23:09:28,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1016 places, 1951 transitions, 55487 flow [2021-10-16 23:09:34,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 976 places, 1951 transitions, 54749 flow, removed 155 selfloop flow, removed 40 redundant places. [2021-10-16 23:09:34,327 INFO L242 Difference]: Finished difference. Result has 991 places, 1592 transitions, 50952 flow [2021-10-16 23:09:34,328 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=43923, PETRI_DIFFERENCE_MINUEND_PLACES=918, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=741, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=725, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=50952, PETRI_PLACES=991, PETRI_TRANSITIONS=1592} [2021-10-16 23:09:34,328 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 798 predicate places. [2021-10-16 23:09:34,328 INFO L470 AbstractCegarLoop]: Abstraction has has 991 places, 1592 transitions, 50952 flow [2021-10-16 23:09:34,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 88.42857142857143) internal successors, (1857), 21 states have internal predecessors, (1857), 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 23:09:34,328 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:09:34,328 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:34,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-16 23:09:34,328 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:09:34,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:09:34,329 INFO L82 PathProgramCache]: Analyzing trace with hash -971438065, now seen corresponding path program 20 times [2021-10-16 23:09:34,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:09:34,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998115326] [2021-10-16 23:09:34,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:09:34,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:09:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:09:34,609 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 23:09:34,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:09:34,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998115326] [2021-10-16 23:09:34,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998115326] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:09:34,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:09:34,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-16 23:09:34,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431518770] [2021-10-16 23:09:34,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 23:09:34,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:09:34,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 23:09:34,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-16 23:09:34,611 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 195 [2021-10-16 23:09:34,612 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 991 places, 1592 transitions, 50952 flow. Second operand has 21 states, 21 states have (on average 88.42857142857143) internal successors, (1857), 21 states have internal predecessors, (1857), 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 23:09:34,612 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:09:34,612 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 195 [2021-10-16 23:09:34,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:09:44,722 INFO L129 PetriNetUnfolder]: 5028/14011 cut-off events. [2021-10-16 23:09:44,722 INFO L130 PetriNetUnfolder]: For 589368/589765 co-relation queries the response was YES. [2021-10-16 23:09:45,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106283 conditions, 14011 events. 5028/14011 cut-off events. For 589368/589765 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 133970 event pairs, 424 based on Foata normal form. 184/14060 useless extension candidates. Maximal degree in co-relation 105961. Up to 3667 conditions per place. [2021-10-16 23:09:45,131 INFO L132 encePairwiseOnDemand]: 165/195 looper letters, 1065 selfloop transitions, 887 changer transitions 0/2035 dead transitions. [2021-10-16 23:09:45,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1051 places, 2035 transitions, 61511 flow [2021-10-16 23:09:45,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-16 23:09:45,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2021-10-16 23:09:45,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 5731 transitions. [2021-10-16 23:09:45,134 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4817990752416982 [2021-10-16 23:09:45,134 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 5731 transitions. [2021-10-16 23:09:45,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 5731 transitions. [2021-10-16 23:09:45,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:09:45,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 5731 transitions. [2021-10-16 23:09:45,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 93.95081967213115) internal successors, (5731), 61 states have internal predecessors, (5731), 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 23:09:45,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 195.0) internal successors, (12090), 62 states have internal predecessors, (12090), 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 23:09:45,144 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 195.0) internal successors, (12090), 62 states have internal predecessors, (12090), 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 23:09:45,144 INFO L186 Difference]: Start difference. First operand has 991 places, 1592 transitions, 50952 flow. Second operand 61 states and 5731 transitions. [2021-10-16 23:09:45,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1051 places, 2035 transitions, 61511 flow [2021-10-16 23:09:52,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1014 places, 2035 transitions, 60474 flow, removed 322 selfloop flow, removed 37 redundant places. [2021-10-16 23:09:52,240 INFO L242 Difference]: Finished difference. Result has 1034 places, 1673 transitions, 56673 flow [2021-10-16 23:09:52,241 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=49987, PETRI_DIFFERENCE_MINUEND_PLACES=954, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=806, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=755, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=56673, PETRI_PLACES=1034, PETRI_TRANSITIONS=1673} [2021-10-16 23:09:52,241 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 841 predicate places. [2021-10-16 23:09:52,241 INFO L470 AbstractCegarLoop]: Abstraction has has 1034 places, 1673 transitions, 56673 flow [2021-10-16 23:09:52,241 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 88.42857142857143) internal successors, (1857), 21 states have internal predecessors, (1857), 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 23:09:52,241 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:09:52,242 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:52,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-16 23:09:52,242 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:09:52,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:09:52,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1496801927, now seen corresponding path program 21 times [2021-10-16 23:09:52,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:09:52,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624877082] [2021-10-16 23:09:52,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:09:52,242 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:09:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:09:52,467 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 23:09:52,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:09:52,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624877082] [2021-10-16 23:09:52,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624877082] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:09:52,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:09:52,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-16 23:09:52,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725603641] [2021-10-16 23:09:52,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 23:09:52,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:09:52,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 23:09:52,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-10-16 23:09:52,468 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:09:52,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1034 places, 1673 transitions, 56673 flow. Second operand has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:09:52,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:09:52,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:09:52,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:10:02,059 INFO L129 PetriNetUnfolder]: 4463/13003 cut-off events. [2021-10-16 23:10:02,059 INFO L130 PetriNetUnfolder]: For 575865/576239 co-relation queries the response was YES. [2021-10-16 23:10:02,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101908 conditions, 13003 events. 4463/13003 cut-off events. For 575865/576239 co-relation queries the response was YES. Maximal size of possible extension queue 323. Compared 126870 event pairs, 613 based on Foata normal form. 199/13044 useless extension candidates. Maximal degree in co-relation 101566. Up to 4646 conditions per place. [2021-10-16 23:10:02,368 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 1261 selfloop transitions, 806 changer transitions 0/2152 dead transitions. [2021-10-16 23:10:02,368 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1089 places, 2152 transitions, 66778 flow [2021-10-16 23:10:02,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-10-16 23:10:02,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-10-16 23:10:02,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 5383 transitions. [2021-10-16 23:10:02,371 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.492948717948718 [2021-10-16 23:10:02,372 INFO L72 ComplementDD]: Start complementDD. Operand 56 states and 5383 transitions. [2021-10-16 23:10:02,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 5383 transitions. [2021-10-16 23:10:02,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:10:02,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 56 states and 5383 transitions. [2021-10-16 23:10:02,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 57 states, 56 states have (on average 96.125) internal successors, (5383), 56 states have internal predecessors, (5383), 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 23:10:02,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 57 states, 57 states have (on average 195.0) internal successors, (11115), 57 states have internal predecessors, (11115), 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 23:10:02,382 INFO L81 ComplementDD]: Finished complementDD. Result has 57 states, 57 states have (on average 195.0) internal successors, (11115), 57 states have internal predecessors, (11115), 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 23:10:02,382 INFO L186 Difference]: Start difference. First operand has 1034 places, 1673 transitions, 56673 flow. Second operand 56 states and 5383 transitions. [2021-10-16 23:10:02,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1089 places, 2152 transitions, 66778 flow [2021-10-16 23:10:10,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1052 places, 2152 transitions, 65183 flow, removed 621 selfloop flow, removed 37 redundant places. [2021-10-16 23:10:10,631 INFO L242 Difference]: Finished difference. Result has 1062 places, 1712 transitions, 59166 flow [2021-10-16 23:10:10,633 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=55666, PETRI_DIFFERENCE_MINUEND_PLACES=997, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1673, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=767, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=882, PETRI_DIFFERENCE_SUBTRAHEND_STATES=56, PETRI_FLOW=59166, PETRI_PLACES=1062, PETRI_TRANSITIONS=1712} [2021-10-16 23:10:10,633 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 869 predicate places. [2021-10-16 23:10:10,633 INFO L470 AbstractCegarLoop]: Abstraction has has 1062 places, 1712 transitions, 59166 flow [2021-10-16 23:10:10,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:10:10,633 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:10:10,633 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:10,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-16 23:10:10,633 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:10:10,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:10:10,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1824538571, now seen corresponding path program 22 times [2021-10-16 23:10:10,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:10:10,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175477074] [2021-10-16 23:10:10,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:10:10,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:10:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:10:11,043 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 23:10:11,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:10:11,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175477074] [2021-10-16 23:10:11,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175477074] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:10:11,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:10:11,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-10-16 23:10:11,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822122402] [2021-10-16 23:10:11,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-16 23:10:11,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:10:11,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-16 23:10:11,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-16 23:10:11,044 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 195 [2021-10-16 23:10:11,045 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1062 places, 1712 transitions, 59166 flow. Second operand has 23 states, 23 states have (on average 86.21739130434783) internal successors, (1983), 23 states have internal predecessors, (1983), 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 23:10:11,045 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:10:11,045 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 195 [2021-10-16 23:10:11,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:10:21,865 INFO L129 PetriNetUnfolder]: 4525/13144 cut-off events. [2021-10-16 23:10:21,866 INFO L130 PetriNetUnfolder]: For 600111/600504 co-relation queries the response was YES. [2021-10-16 23:10:22,232 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104777 conditions, 13144 events. 4525/13144 cut-off events. For 600111/600504 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 128387 event pairs, 344 based on Foata normal form. 207/13200 useless extension candidates. Maximal degree in co-relation 104425. Up to 3241 conditions per place. [2021-10-16 23:10:22,278 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 992 selfloop transitions, 977 changer transitions 0/2050 dead transitions. [2021-10-16 23:10:22,278 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1118 places, 2050 transitions, 70200 flow [2021-10-16 23:10:22,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-10-16 23:10:22,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2021-10-16 23:10:22,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 5180 transitions. [2021-10-16 23:10:22,281 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4660368870895187 [2021-10-16 23:10:22,281 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 5180 transitions. [2021-10-16 23:10:22,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 5180 transitions. [2021-10-16 23:10:22,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:10:22,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 5180 transitions. [2021-10-16 23:10:22,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 90.87719298245614) internal successors, (5180), 57 states have internal predecessors, (5180), 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 23:10:22,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 195.0) internal successors, (11310), 58 states have internal predecessors, (11310), 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 23:10:22,290 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 195.0) internal successors, (11310), 58 states have internal predecessors, (11310), 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 23:10:22,290 INFO L186 Difference]: Start difference. First operand has 1062 places, 1712 transitions, 59166 flow. Second operand 57 states and 5180 transitions. [2021-10-16 23:10:22,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1118 places, 2050 transitions, 70200 flow [2021-10-16 23:10:30,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1077 places, 2050 transitions, 68948 flow, removed 401 selfloop flow, removed 41 redundant places. [2021-10-16 23:10:30,508 INFO L242 Difference]: Finished difference. Result has 1093 places, 1803 transitions, 65845 flow [2021-10-16 23:10:30,509 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=58143, PETRI_DIFFERENCE_MINUEND_PLACES=1021, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1712, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=889, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=798, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=65845, PETRI_PLACES=1093, PETRI_TRANSITIONS=1803} [2021-10-16 23:10:30,509 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 900 predicate places. [2021-10-16 23:10:30,510 INFO L470 AbstractCegarLoop]: Abstraction has has 1093 places, 1803 transitions, 65845 flow [2021-10-16 23:10:30,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 86.21739130434783) internal successors, (1983), 23 states have internal predecessors, (1983), 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 23:10:30,510 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:10:30,510 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:30,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-16 23:10:30,510 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:10:30,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:10:30,510 INFO L82 PathProgramCache]: Analyzing trace with hash 323200447, now seen corresponding path program 23 times [2021-10-16 23:10:30,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:10:30,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217582178] [2021-10-16 23:10:30,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:10:30,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:10:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:10:30,781 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 23:10:30,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:10:30,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217582178] [2021-10-16 23:10:30,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217582178] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:10:30,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:10:30,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-16 23:10:30,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498723163] [2021-10-16 23:10:30,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 23:10:30,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:10:30,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 23:10:30,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2021-10-16 23:10:30,782 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:10:30,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1093 places, 1803 transitions, 65845 flow. Second operand has 21 states, 21 states have (on average 90.33333333333333) internal successors, (1897), 21 states have internal predecessors, (1897), 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 23:10:30,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:10:30,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:10:30,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:10:42,387 INFO L129 PetriNetUnfolder]: 4657/13613 cut-off events. [2021-10-16 23:10:42,387 INFO L130 PetriNetUnfolder]: For 677674/678034 co-relation queries the response was YES. [2021-10-16 23:10:42,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112168 conditions, 13613 events. 4657/13613 cut-off events. For 677674/678034 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 134036 event pairs, 327 based on Foata normal form. 181/13643 useless extension candidates. Maximal degree in co-relation 111805. Up to 2811 conditions per place. [2021-10-16 23:10:42,760 INFO L132 encePairwiseOnDemand]: 165/195 looper letters, 1217 selfloop transitions, 1037 changer transitions 0/2339 dead transitions. [2021-10-16 23:10:42,760 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1155 places, 2339 transitions, 78373 flow [2021-10-16 23:10:42,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-10-16 23:10:42,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-10-16 23:10:42,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 6076 transitions. [2021-10-16 23:10:42,763 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4945868945868946 [2021-10-16 23:10:42,763 INFO L72 ComplementDD]: Start complementDD. Operand 63 states and 6076 transitions. [2021-10-16 23:10:42,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 6076 transitions. [2021-10-16 23:10:42,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:10:42,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 63 states and 6076 transitions. [2021-10-16 23:10:42,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 64 states, 63 states have (on average 96.44444444444444) internal successors, (6076), 63 states have internal predecessors, (6076), 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 23:10:42,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 64 states, 64 states have (on average 195.0) internal successors, (12480), 64 states have internal predecessors, (12480), 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 23:10:42,773 INFO L81 ComplementDD]: Finished complementDD. Result has 64 states, 64 states have (on average 195.0) internal successors, (12480), 64 states have internal predecessors, (12480), 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 23:10:42,773 INFO L186 Difference]: Start difference. First operand has 1093 places, 1803 transitions, 65845 flow. Second operand 63 states and 6076 transitions. [2021-10-16 23:10:42,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1155 places, 2339 transitions, 78373 flow [2021-10-16 23:10:52,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1121 places, 2339 transitions, 77358 flow, removed 216 selfloop flow, removed 34 redundant places. [2021-10-16 23:10:52,152 INFO L242 Difference]: Finished difference. Result has 1138 places, 1877 transitions, 71424 flow [2021-10-16 23:10:52,154 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=64901, PETRI_DIFFERENCE_MINUEND_PLACES=1059, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1803, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=965, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=822, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=71424, PETRI_PLACES=1138, PETRI_TRANSITIONS=1877} [2021-10-16 23:10:52,154 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 945 predicate places. [2021-10-16 23:10:52,154 INFO L470 AbstractCegarLoop]: Abstraction has has 1138 places, 1877 transitions, 71424 flow [2021-10-16 23:10:52,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 90.33333333333333) internal successors, (1897), 21 states have internal predecessors, (1897), 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 23:10:52,154 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:10:52,154 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:52,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-16 23:10:52,154 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:10:52,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:10:52,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1869917249, now seen corresponding path program 24 times [2021-10-16 23:10:52,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:10:52,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735899891] [2021-10-16 23:10:52,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:10:52,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:10:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:10:52,577 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 23:10:52,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:10:52,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735899891] [2021-10-16 23:10:52,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735899891] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:10:52,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:10:52,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-10-16 23:10:52,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875248204] [2021-10-16 23:10:52,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-16 23:10:52,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:10:52,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-16 23:10:52,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2021-10-16 23:10:52,579 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 195 [2021-10-16 23:10:52,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1138 places, 1877 transitions, 71424 flow. Second operand has 23 states, 23 states have (on average 86.21739130434783) internal successors, (1983), 23 states have internal predecessors, (1983), 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 23:10:52,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:10:52,580 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 195 [2021-10-16 23:10:52,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:11:04,853 INFO L129 PetriNetUnfolder]: 4703/13788 cut-off events. [2021-10-16 23:11:04,854 INFO L130 PetriNetUnfolder]: For 755109/755517 co-relation queries the response was YES. [2021-10-16 23:11:05,156 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116919 conditions, 13788 events. 4703/13788 cut-off events. For 755109/755517 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 136282 event pairs, 329 based on Foata normal form. 277/13924 useless extension candidates. Maximal degree in co-relation 116540. Up to 3302 conditions per place. [2021-10-16 23:11:05,207 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 979 selfloop transitions, 1107 changer transitions 0/2167 dead transitions. [2021-10-16 23:11:05,207 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1195 places, 2167 transitions, 80740 flow [2021-10-16 23:11:05,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-10-16 23:11:05,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2021-10-16 23:11:05,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 5257 transitions. [2021-10-16 23:11:05,210 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4648099027409372 [2021-10-16 23:11:05,210 INFO L72 ComplementDD]: Start complementDD. Operand 58 states and 5257 transitions. [2021-10-16 23:11:05,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 5257 transitions. [2021-10-16 23:11:05,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:11:05,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 58 states and 5257 transitions. [2021-10-16 23:11:05,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 59 states, 58 states have (on average 90.63793103448276) internal successors, (5257), 58 states have internal predecessors, (5257), 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 23:11:05,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 59 states, 59 states have (on average 195.0) internal successors, (11505), 59 states have internal predecessors, (11505), 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 23:11:05,219 INFO L81 ComplementDD]: Finished complementDD. Result has 59 states, 59 states have (on average 195.0) internal successors, (11505), 59 states have internal predecessors, (11505), 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 23:11:05,219 INFO L186 Difference]: Start difference. First operand has 1138 places, 1877 transitions, 71424 flow. Second operand 58 states and 5257 transitions. [2021-10-16 23:11:05,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1195 places, 2167 transitions, 80740 flow [2021-10-16 23:11:15,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1154 places, 2167 transitions, 78973 flow, removed 497 selfloop flow, removed 41 redundant places. [2021-10-16 23:11:15,412 INFO L242 Difference]: Finished difference. Result has 1163 places, 1940 transitions, 76031 flow [2021-10-16 23:11:15,413 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=69840, PETRI_DIFFERENCE_MINUEND_PLACES=1097, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1877, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1044, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=812, PETRI_DIFFERENCE_SUBTRAHEND_STATES=58, PETRI_FLOW=76031, PETRI_PLACES=1163, PETRI_TRANSITIONS=1940} [2021-10-16 23:11:15,413 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 970 predicate places. [2021-10-16 23:11:15,413 INFO L470 AbstractCegarLoop]: Abstraction has has 1163 places, 1940 transitions, 76031 flow [2021-10-16 23:11:15,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 86.21739130434783) internal successors, (1983), 23 states have internal predecessors, (1983), 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 23:11:15,414 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:11:15,414 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:15,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-16 23:11:15,414 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:11:15,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:11:15,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1648403681, now seen corresponding path program 25 times [2021-10-16 23:11:15,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:11:15,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165588684] [2021-10-16 23:11:15,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:11:15,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:11:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:11:15,838 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 23:11:15,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:11:15,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165588684] [2021-10-16 23:11:15,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165588684] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:11:15,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:11:15,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-10-16 23:11:15,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060593365] [2021-10-16 23:11:15,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-16 23:11:15,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:11:15,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-16 23:11:15,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-10-16 23:11:15,840 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 195 [2021-10-16 23:11:15,840 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1163 places, 1940 transitions, 76031 flow. Second operand has 23 states, 23 states have (on average 86.21739130434783) internal successors, (1983), 23 states have internal predecessors, (1983), 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 23:11:15,840 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:11:15,841 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 195 [2021-10-16 23:11:15,841 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:11:28,642 INFO L129 PetriNetUnfolder]: 4759/13947 cut-off events. [2021-10-16 23:11:28,642 INFO L130 PetriNetUnfolder]: For 795772/796186 co-relation queries the response was YES. [2021-10-16 23:11:28,982 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121653 conditions, 13947 events. 4759/13947 cut-off events. For 795772/796186 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 138247 event pairs, 347 based on Foata normal form. 249/14038 useless extension candidates. Maximal degree in co-relation 121270. Up to 3336 conditions per place. [2021-10-16 23:11:29,036 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 995 selfloop transitions, 1154 changer transitions 0/2230 dead transitions. [2021-10-16 23:11:29,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1221 places, 2230 transitions, 85333 flow [2021-10-16 23:11:29,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-16 23:11:29,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-10-16 23:11:29,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 5350 transitions. [2021-10-16 23:11:29,039 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4650152107779226 [2021-10-16 23:11:29,039 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 5350 transitions. [2021-10-16 23:11:29,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 5350 transitions. [2021-10-16 23:11:29,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:11:29,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 5350 transitions. [2021-10-16 23:11:29,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 90.67796610169492) internal successors, (5350), 59 states have internal predecessors, (5350), 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 23:11:29,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:11:29,048 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:11:29,048 INFO L186 Difference]: Start difference. First operand has 1163 places, 1940 transitions, 76031 flow. Second operand 59 states and 5350 transitions. [2021-10-16 23:11:29,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1221 places, 2230 transitions, 85333 flow [2021-10-16 23:11:40,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1182 places, 2230 transitions, 84444 flow, removed 141 selfloop flow, removed 39 redundant places. [2021-10-16 23:11:40,421 INFO L242 Difference]: Finished difference. Result has 1196 places, 2001 transitions, 81796 flow [2021-10-16 23:11:40,422 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=75248, PETRI_DIFFERENCE_MINUEND_PLACES=1124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1940, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1097, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=816, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=81796, PETRI_PLACES=1196, PETRI_TRANSITIONS=2001} [2021-10-16 23:11:40,422 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 1003 predicate places. [2021-10-16 23:11:40,422 INFO L470 AbstractCegarLoop]: Abstraction has has 1196 places, 2001 transitions, 81796 flow [2021-10-16 23:11:40,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 86.21739130434783) internal successors, (1983), 23 states have internal predecessors, (1983), 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 23:11:40,423 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:11:40,423 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:40,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-16 23:11:40,423 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:11:40,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:11:40,423 INFO L82 PathProgramCache]: Analyzing trace with hash -204210067, now seen corresponding path program 26 times [2021-10-16 23:11:40,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:11:40,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672051867] [2021-10-16 23:11:40,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:11:40,423 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:11:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:11:40,840 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 23:11:40,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:11:40,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672051867] [2021-10-16 23:11:40,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672051867] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:11:40,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:11:40,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-10-16 23:11:40,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813289524] [2021-10-16 23:11:40,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-16 23:11:40,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:11:40,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-16 23:11:40,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-10-16 23:11:40,842 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 195 [2021-10-16 23:11:40,843 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1196 places, 2001 transitions, 81796 flow. Second operand has 23 states, 23 states have (on average 86.21739130434783) internal successors, (1983), 23 states have internal predecessors, (1983), 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 23:11:40,843 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:11:40,843 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 195 [2021-10-16 23:11:40,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:11:53,708 INFO L129 PetriNetUnfolder]: 4801/14076 cut-off events. [2021-10-16 23:11:53,708 INFO L130 PetriNetUnfolder]: For 883062/883483 co-relation queries the response was YES. [2021-10-16 23:11:54,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127153 conditions, 14076 events. 4801/14076 cut-off events. For 883062/883483 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 139656 event pairs, 327 based on Foata normal form. 284/14221 useless extension candidates. Maximal degree in co-relation 126756. Up to 3363 conditions per place. [2021-10-16 23:11:54,073 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 1005 selfloop transitions, 1187 changer transitions 0/2273 dead transitions. [2021-10-16 23:11:54,073 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1256 places, 2273 transitions, 90756 flow [2021-10-16 23:11:54,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-16 23:11:54,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2021-10-16 23:11:54,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 5517 transitions. [2021-10-16 23:11:54,076 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4638083228247163 [2021-10-16 23:11:54,076 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 5517 transitions. [2021-10-16 23:11:54,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 5517 transitions. [2021-10-16 23:11:54,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:11:54,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 5517 transitions. [2021-10-16 23:11:54,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 90.44262295081967) internal successors, (5517), 61 states have internal predecessors, (5517), 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 23:11:54,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 195.0) internal successors, (12090), 62 states have internal predecessors, (12090), 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 23:11:54,085 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 195.0) internal successors, (12090), 62 states have internal predecessors, (12090), 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 23:11:54,086 INFO L186 Difference]: Start difference. First operand has 1196 places, 2001 transitions, 81796 flow. Second operand 61 states and 5517 transitions. [2021-10-16 23:11:54,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1256 places, 2273 transitions, 90756 flow [2021-10-16 23:12:06,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1217 places, 2273 transitions, 90187 flow, removed 49 selfloop flow, removed 39 redundant places. [2021-10-16 23:12:06,877 INFO L242 Difference]: Finished difference. Result has 1226 places, 2049 transitions, 87383 flow [2021-10-16 23:12:06,878 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=81229, PETRI_DIFFERENCE_MINUEND_PLACES=1157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2001, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=841, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=87383, PETRI_PLACES=1226, PETRI_TRANSITIONS=2049} [2021-10-16 23:12:06,878 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 1033 predicate places. [2021-10-16 23:12:06,879 INFO L470 AbstractCegarLoop]: Abstraction has has 1226 places, 2049 transitions, 87383 flow [2021-10-16 23:12:06,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 86.21739130434783) internal successors, (1983), 23 states have internal predecessors, (1983), 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 23:12:06,879 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:12:06,879 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:12:06,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-16 23:12:06,879 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:12:06,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:12:06,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1888282423, now seen corresponding path program 27 times [2021-10-16 23:12:06,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:12:06,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721627151] [2021-10-16 23:12:06,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:12:06,880 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:12:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:12:07,219 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 23:12:07,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:12:07,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721627151] [2021-10-16 23:12:07,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721627151] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:12:07,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:12:07,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-16 23:12:07,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281718388] [2021-10-16 23:12:07,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 23:12:07,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:12:07,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 23:12:07,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-10-16 23:12:07,221 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:12:07,222 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1226 places, 2049 transitions, 87383 flow. Second operand has 21 states, 21 states have (on average 90.33333333333333) internal successors, (1897), 21 states have internal predecessors, (1897), 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 23:12:07,222 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:12:07,222 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:12:07,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:12:21,116 INFO L129 PetriNetUnfolder]: 4832/14162 cut-off events. [2021-10-16 23:12:21,117 INFO L130 PetriNetUnfolder]: For 940388/940813 co-relation queries the response was YES. [2021-10-16 23:12:21,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132820 conditions, 14162 events. 4832/14162 cut-off events. For 940388/940813 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 140851 event pairs, 351 based on Foata normal form. 220/14222 useless extension candidates. Maximal degree in co-relation 132414. Up to 3375 conditions per place. [2021-10-16 23:12:21,590 INFO L132 encePairwiseOnDemand]: 165/195 looper letters, 1047 selfloop transitions, 1180 changer transitions 0/2312 dead transitions. [2021-10-16 23:12:21,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1282 places, 2312 transitions, 96097 flow [2021-10-16 23:12:21,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-10-16 23:12:21,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2021-10-16 23:12:21,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 5416 transitions. [2021-10-16 23:12:21,593 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48726945569050834 [2021-10-16 23:12:21,593 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 5416 transitions. [2021-10-16 23:12:21,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 5416 transitions. [2021-10-16 23:12:21,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:12:21,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 5416 transitions. [2021-10-16 23:12:21,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 95.01754385964912) internal successors, (5416), 57 states have internal predecessors, (5416), 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 23:12:21,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 195.0) internal successors, (11310), 58 states have internal predecessors, (11310), 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 23:12:21,602 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 195.0) internal successors, (11310), 58 states have internal predecessors, (11310), 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 23:12:21,602 INFO L186 Difference]: Start difference. First operand has 1226 places, 2049 transitions, 87383 flow. Second operand 57 states and 5416 transitions. [2021-10-16 23:12:21,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1282 places, 2312 transitions, 96097 flow [2021-10-16 23:12:35,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1241 places, 2312 transitions, 95421 flow, removed 39 selfloop flow, removed 41 redundant places. [2021-10-16 23:12:35,508 INFO L242 Difference]: Finished difference. Result has 1252 places, 2083 transitions, 92665 flow [2021-10-16 23:12:35,509 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=86710, PETRI_DIFFERENCE_MINUEND_PLACES=1185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=887, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=92665, PETRI_PLACES=1252, PETRI_TRANSITIONS=2083} [2021-10-16 23:12:35,509 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 1059 predicate places. [2021-10-16 23:12:35,509 INFO L470 AbstractCegarLoop]: Abstraction has has 1252 places, 2083 transitions, 92665 flow [2021-10-16 23:12:35,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 90.33333333333333) internal successors, (1897), 21 states have internal predecessors, (1897), 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 23:12:35,509 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:12:35,509 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:12:35,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-16 23:12:35,509 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:12:35,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:12:35,510 INFO L82 PathProgramCache]: Analyzing trace with hash -659219333, now seen corresponding path program 28 times [2021-10-16 23:12:35,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:12:35,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224380421] [2021-10-16 23:12:35,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:12:35,510 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:12:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:12:35,889 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 23:12:35,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:12:35,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224380421] [2021-10-16 23:12:35,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224380421] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:12:35,890 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:12:35,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-16 23:12:35,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357298161] [2021-10-16 23:12:35,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 23:12:35,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:12:35,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 23:12:35,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-10-16 23:12:35,892 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:12:35,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1252 places, 2083 transitions, 92665 flow. Second operand has 21 states, 21 states have (on average 90.33333333333333) internal successors, (1897), 21 states have internal predecessors, (1897), 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 23:12:35,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:12:35,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:12:35,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:12:49,889 INFO L129 PetriNetUnfolder]: 4871/14264 cut-off events. [2021-10-16 23:12:49,889 INFO L130 PetriNetUnfolder]: For 1041273/1041700 co-relation queries the response was YES. [2021-10-16 23:12:50,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139002 conditions, 14264 events. 4871/14264 cut-off events. For 1041273/1041700 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 142129 event pairs, 351 based on Foata normal form. 225/14328 useless extension candidates. Maximal degree in co-relation 138585. Up to 3386 conditions per place. [2021-10-16 23:12:50,285 INFO L132 encePairwiseOnDemand]: 165/195 looper letters, 1060 selfloop transitions, 1213 changer transitions 0/2358 dead transitions. [2021-10-16 23:12:50,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1310 places, 2358 transitions, 102167 flow [2021-10-16 23:12:50,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-16 23:12:50,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-10-16 23:12:50,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 5603 transitions. [2021-10-16 23:12:50,289 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48700564971751414 [2021-10-16 23:12:50,289 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 5603 transitions. [2021-10-16 23:12:50,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 5603 transitions. [2021-10-16 23:12:50,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:12:50,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 5603 transitions. [2021-10-16 23:12:50,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 94.96610169491525) internal successors, (5603), 59 states have internal predecessors, (5603), 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 23:12:50,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:12:50,298 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:12:50,298 INFO L186 Difference]: Start difference. First operand has 1252 places, 2083 transitions, 92665 flow. Second operand 59 states and 5603 transitions. [2021-10-16 23:12:50,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1310 places, 2358 transitions, 102167 flow [2021-10-16 23:13:06,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1274 places, 2358 transitions, 101467 flow, removed 133 selfloop flow, removed 36 redundant places. [2021-10-16 23:13:06,272 INFO L242 Difference]: Finished difference. Result has 1290 places, 2130 transitions, 98903 flow [2021-10-16 23:13:06,274 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=91970, PETRI_DIFFERENCE_MINUEND_PLACES=1216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2083, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=894, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=98903, PETRI_PLACES=1290, PETRI_TRANSITIONS=2130} [2021-10-16 23:13:06,274 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 1097 predicate places. [2021-10-16 23:13:06,274 INFO L470 AbstractCegarLoop]: Abstraction has has 1290 places, 2130 transitions, 98903 flow [2021-10-16 23:13:06,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 90.33333333333333) internal successors, (1897), 21 states have internal predecessors, (1897), 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 23:13:06,274 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:13:06,274 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:13:06,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-16 23:13:06,274 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:13:06,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:13:06,275 INFO L82 PathProgramCache]: Analyzing trace with hash 651148805, now seen corresponding path program 29 times [2021-10-16 23:13:06,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:13:06,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510368164] [2021-10-16 23:13:06,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:13:06,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:13:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:13:06,662 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 23:13:06,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:13:06,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510368164] [2021-10-16 23:13:06,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510368164] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:13:06,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:13:06,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-16 23:13:06,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293235807] [2021-10-16 23:13:06,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 23:13:06,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:13:06,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 23:13:06,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-16 23:13:06,664 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:13:06,665 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1290 places, 2130 transitions, 98903 flow. Second operand has 21 states, 21 states have (on average 90.33333333333333) internal successors, (1897), 21 states have internal predecessors, (1897), 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 23:13:06,665 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:13:06,665 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:13:06,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:13:21,463 INFO L129 PetriNetUnfolder]: 4904/14373 cut-off events. [2021-10-16 23:13:21,463 INFO L130 PetriNetUnfolder]: For 1150537/1150968 co-relation queries the response was YES. [2021-10-16 23:13:21,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145182 conditions, 14373 events. 4904/14373 cut-off events. For 1150537/1150968 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 143523 event pairs, 359 based on Foata normal form. 229/14441 useless extension candidates. Maximal degree in co-relation 144749. Up to 3326 conditions per place. [2021-10-16 23:13:21,877 INFO L132 encePairwiseOnDemand]: 165/195 looper letters, 1098 selfloop transitions, 1229 changer transitions 0/2412 dead transitions. [2021-10-16 23:13:21,877 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1348 places, 2412 transitions, 109444 flow [2021-10-16 23:13:21,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-16 23:13:21,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-10-16 23:13:21,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 5603 transitions. [2021-10-16 23:13:21,880 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48700564971751414 [2021-10-16 23:13:21,880 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 5603 transitions. [2021-10-16 23:13:21,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 5603 transitions. [2021-10-16 23:13:21,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:13:21,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 5603 transitions. [2021-10-16 23:13:21,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 94.96610169491525) internal successors, (5603), 59 states have internal predecessors, (5603), 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 23:13:21,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:13:21,965 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:13:21,965 INFO L186 Difference]: Start difference. First operand has 1290 places, 2130 transitions, 98903 flow. Second operand 59 states and 5603 transitions. [2021-10-16 23:13:21,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1348 places, 2412 transitions, 109444 flow [2021-10-16 23:13:40,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1313 places, 2412 transitions, 108489 flow, removed 251 selfloop flow, removed 35 redundant places. [2021-10-16 23:13:40,514 INFO L242 Difference]: Finished difference. Result has 1327 places, 2172 transitions, 103994 flow [2021-10-16 23:13:40,516 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=97948, PETRI_DIFFERENCE_MINUEND_PLACES=1255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=922, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=103994, PETRI_PLACES=1327, PETRI_TRANSITIONS=2172} [2021-10-16 23:13:40,516 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 1134 predicate places. [2021-10-16 23:13:40,516 INFO L470 AbstractCegarLoop]: Abstraction has has 1327 places, 2172 transitions, 103994 flow [2021-10-16 23:13:40,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 90.33333333333333) internal successors, (1897), 21 states have internal predecessors, (1897), 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 23:13:40,516 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:13:40,516 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:13:40,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-16 23:13:40,516 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:13:40,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:13:40,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1521434441, now seen corresponding path program 30 times [2021-10-16 23:13:40,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:13:40,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598237311] [2021-10-16 23:13:40,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:13:40,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:13:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:13:40,906 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 23:13:40,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:13:40,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598237311] [2021-10-16 23:13:40,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598237311] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:13:40,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:13:40,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-16 23:13:40,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914177646] [2021-10-16 23:13:40,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 23:13:40,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:13:40,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 23:13:40,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2021-10-16 23:13:40,908 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:13:40,909 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1327 places, 2172 transitions, 103994 flow. Second operand has 21 states, 21 states have (on average 90.33333333333333) internal successors, (1897), 21 states have internal predecessors, (1897), 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 23:13:40,909 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:13:40,909 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:13:40,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:13:56,114 INFO L129 PetriNetUnfolder]: 4930/14466 cut-off events. [2021-10-16 23:13:56,114 INFO L130 PetriNetUnfolder]: For 1247865/1248302 co-relation queries the response was YES. [2021-10-16 23:13:56,533 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150113 conditions, 14466 events. 4930/14466 cut-off events. For 1247865/1248302 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 144883 event pairs, 326 based on Foata normal form. 296/14624 useless extension candidates. Maximal degree in co-relation 149666. Up to 3480 conditions per place. [2021-10-16 23:13:56,597 INFO L132 encePairwiseOnDemand]: 165/195 looper letters, 1058 selfloop transitions, 1283 changer transitions 0/2426 dead transitions. [2021-10-16 23:13:56,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1385 places, 2426 transitions, 112985 flow [2021-10-16 23:13:56,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-16 23:13:56,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-10-16 23:13:56,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 5590 transitions. [2021-10-16 23:13:56,601 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4858757062146893 [2021-10-16 23:13:56,601 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 5590 transitions. [2021-10-16 23:13:56,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 5590 transitions. [2021-10-16 23:13:56,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:13:56,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 5590 transitions. [2021-10-16 23:13:56,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 94.7457627118644) internal successors, (5590), 59 states have internal predecessors, (5590), 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 23:13:56,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:13:56,610 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:13:56,610 INFO L186 Difference]: Start difference. First operand has 1327 places, 2172 transitions, 103994 flow. Second operand 59 states and 5590 transitions. [2021-10-16 23:13:56,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1385 places, 2426 transitions, 112985 flow [2021-10-16 23:14:16,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1347 places, 2426 transitions, 111762 flow, removed 348 selfloop flow, removed 38 redundant places. [2021-10-16 23:14:16,636 INFO L242 Difference]: Finished difference. Result has 1358 places, 2199 transitions, 108974 flow [2021-10-16 23:14:16,638 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=102797, PETRI_DIFFERENCE_MINUEND_PLACES=1289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1256, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=903, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=108974, PETRI_PLACES=1358, PETRI_TRANSITIONS=2199} [2021-10-16 23:14:16,638 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 1165 predicate places. [2021-10-16 23:14:16,638 INFO L470 AbstractCegarLoop]: Abstraction has has 1358 places, 2199 transitions, 108974 flow [2021-10-16 23:14:16,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 90.33333333333333) internal successors, (1897), 21 states have internal predecessors, (1897), 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 23:14:16,639 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:14:16,639 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:16,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-16 23:14:16,639 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:14:16,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:14:16,639 INFO L82 PathProgramCache]: Analyzing trace with hash 78831305, now seen corresponding path program 31 times [2021-10-16 23:14:16,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:14:16,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359026492] [2021-10-16 23:14:16,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:14:16,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:14:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:14:17,007 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 23:14:17,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:14:17,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359026492] [2021-10-16 23:14:17,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359026492] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:14:17,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:14:17,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-16 23:14:17,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821645103] [2021-10-16 23:14:17,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 23:14:17,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:14:17,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 23:14:17,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-10-16 23:14:17,009 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:14:17,010 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1358 places, 2199 transitions, 108974 flow. Second operand has 21 states, 21 states have (on average 90.33333333333333) internal successors, (1897), 21 states have internal predecessors, (1897), 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 23:14:17,010 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:14:17,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:14:17,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:14:32,966 INFO L129 PetriNetUnfolder]: 4961/14565 cut-off events. [2021-10-16 23:14:32,967 INFO L130 PetriNetUnfolder]: For 1315189/1315635 co-relation queries the response was YES. [2021-10-16 23:14:33,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155924 conditions, 14565 events. 4961/14565 cut-off events. For 1315189/1315635 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 146079 event pairs, 351 based on Foata normal form. 267/14669 useless extension candidates. Maximal degree in co-relation 155468. Up to 3516 conditions per place. [2021-10-16 23:14:33,476 INFO L132 encePairwiseOnDemand]: 165/195 looper letters, 1064 selfloop transitions, 1314 changer transitions 0/2463 dead transitions. [2021-10-16 23:14:33,476 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1416 places, 2463 transitions, 118581 flow [2021-10-16 23:14:33,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-16 23:14:33,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-10-16 23:14:33,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 5594 transitions. [2021-10-16 23:14:33,479 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4862233811386354 [2021-10-16 23:14:33,479 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 5594 transitions. [2021-10-16 23:14:33,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 5594 transitions. [2021-10-16 23:14:33,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:14:33,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 5594 transitions. [2021-10-16 23:14:33,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 94.8135593220339) internal successors, (5594), 59 states have internal predecessors, (5594), 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 23:14:33,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:14:33,488 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:14:33,488 INFO L186 Difference]: Start difference. First operand has 1358 places, 2199 transitions, 108974 flow. Second operand 59 states and 5594 transitions. [2021-10-16 23:14:33,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1416 places, 2463 transitions, 118581 flow [2021-10-16 23:14:57,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1374 places, 2463 transitions, 117669 flow, removed 156 selfloop flow, removed 42 redundant places. [2021-10-16 23:14:57,202 INFO L242 Difference]: Finished difference. Result has 1385 places, 2233 transitions, 114891 flow [2021-10-16 23:14:57,204 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=108062, PETRI_DIFFERENCE_MINUEND_PLACES=1316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1280, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=903, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=114891, PETRI_PLACES=1385, PETRI_TRANSITIONS=2233} [2021-10-16 23:14:57,204 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 1192 predicate places. [2021-10-16 23:14:57,204 INFO L470 AbstractCegarLoop]: Abstraction has has 1385 places, 2233 transitions, 114891 flow [2021-10-16 23:14:57,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 90.33333333333333) internal successors, (1897), 21 states have internal predecessors, (1897), 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 23:14:57,204 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:14:57,204 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:57,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-16 23:14:57,204 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:14:57,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:14:57,205 INFO L82 PathProgramCache]: Analyzing trace with hash -835354223, now seen corresponding path program 32 times [2021-10-16 23:14:57,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:14:57,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778016026] [2021-10-16 23:14:57,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:14:57,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:14:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:14:57,542 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 23:14:57,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:14:57,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778016026] [2021-10-16 23:14:57,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778016026] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:14:57,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:14:57,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-10-16 23:14:57,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955505844] [2021-10-16 23:14:57,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 23:14:57,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:14:57,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 23:14:57,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2021-10-16 23:14:57,543 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:14:57,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1385 places, 2233 transitions, 114891 flow. Second operand has 21 states, 21 states have (on average 90.33333333333333) internal successors, (1897), 21 states have internal predecessors, (1897), 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 23:14:57,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:14:57,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:14:57,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:15:14,279 INFO L129 PetriNetUnfolder]: 4968/14579 cut-off events. [2021-10-16 23:15:14,280 INFO L130 PetriNetUnfolder]: For 1405593/1406038 co-relation queries the response was YES. [2021-10-16 23:15:14,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160390 conditions, 14579 events. 4968/14579 cut-off events. For 1405593/1406038 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 146181 event pairs, 351 based on Foata normal form. 276/14694 useless extension candidates. Maximal degree in co-relation 159923. Up to 3457 conditions per place. [2021-10-16 23:15:14,746 INFO L132 encePairwiseOnDemand]: 165/195 looper letters, 1080 selfloop transitions, 1329 changer transitions 0/2494 dead transitions. [2021-10-16 23:15:14,746 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1443 places, 2494 transitions, 124575 flow [2021-10-16 23:15:14,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-16 23:15:14,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-10-16 23:15:14,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 5597 transitions. [2021-10-16 23:15:14,750 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.48648413733159496 [2021-10-16 23:15:14,750 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 5597 transitions. [2021-10-16 23:15:14,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 5597 transitions. [2021-10-16 23:15:14,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:15:14,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 5597 transitions. [2021-10-16 23:15:14,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 94.86440677966101) internal successors, (5597), 59 states have internal predecessors, (5597), 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 23:15:14,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:15:14,760 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:15:14,760 INFO L186 Difference]: Start difference. First operand has 1385 places, 2233 transitions, 114891 flow. Second operand 59 states and 5597 transitions. [2021-10-16 23:15:14,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1443 places, 2494 transitions, 124575 flow [2021-10-16 23:15:42,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1405 places, 2494 transitions, 123723 flow, removed 164 selfloop flow, removed 38 redundant places. [2021-10-16 23:15:42,473 INFO L242 Difference]: Finished difference. Result has 1417 places, 2267 transitions, 120164 flow [2021-10-16 23:15:42,475 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=114039, PETRI_DIFFERENCE_MINUEND_PLACES=1347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1295, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=921, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=120164, PETRI_PLACES=1417, PETRI_TRANSITIONS=2267} [2021-10-16 23:15:42,475 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 1224 predicate places. [2021-10-16 23:15:42,475 INFO L470 AbstractCegarLoop]: Abstraction has has 1417 places, 2267 transitions, 120164 flow [2021-10-16 23:15:42,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 90.33333333333333) internal successors, (1897), 21 states have internal predecessors, (1897), 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 23:15:42,479 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:15:42,479 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:15:42,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-10-16 23:15:42,479 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:15:42,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:15:42,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1388919359, now seen corresponding path program 33 times [2021-10-16 23:15:42,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:15:42,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864380550] [2021-10-16 23:15:42,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:15:42,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:15:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:15:42,730 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 23:15:42,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:15:42,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864380550] [2021-10-16 23:15:42,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864380550] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:15:42,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:15:42,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-16 23:15:42,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325537235] [2021-10-16 23:15:42,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 23:15:42,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:15:42,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 23:15:42,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-10-16 23:15:42,732 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:15:42,733 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1417 places, 2267 transitions, 120164 flow. Second operand has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:15:42,733 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:15:42,733 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:15:42,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:16:00,002 INFO L129 PetriNetUnfolder]: 5260/15313 cut-off events. [2021-10-16 23:16:00,002 INFO L130 PetriNetUnfolder]: For 1494724/1495147 co-relation queries the response was YES. [2021-10-16 23:16:00,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169839 conditions, 15313 events. 5260/15313 cut-off events. For 1494724/1495147 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 154400 event pairs, 592 based on Foata normal form. 216/15364 useless extension candidates. Maximal degree in co-relation 169360. Up to 6224 conditions per place. [2021-10-16 23:16:00,519 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 1438 selfloop transitions, 1158 changer transitions 0/2681 dead transitions. [2021-10-16 23:16:00,519 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1467 places, 2681 transitions, 132069 flow [2021-10-16 23:16:00,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-16 23:16:00,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2021-10-16 23:16:00,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 4943 transitions. [2021-10-16 23:16:00,522 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4970336852689794 [2021-10-16 23:16:00,522 INFO L72 ComplementDD]: Start complementDD. Operand 51 states and 4943 transitions. [2021-10-16 23:16:00,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 4943 transitions. [2021-10-16 23:16:00,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:16:00,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 51 states and 4943 transitions. [2021-10-16 23:16:00,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 52 states, 51 states have (on average 96.92156862745098) internal successors, (4943), 51 states have internal predecessors, (4943), 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 23:16:00,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 52 states, 52 states have (on average 195.0) internal successors, (10140), 52 states have internal predecessors, (10140), 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 23:16:00,529 INFO L81 ComplementDD]: Finished complementDD. Result has 52 states, 52 states have (on average 195.0) internal successors, (10140), 52 states have internal predecessors, (10140), 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 23:16:00,529 INFO L186 Difference]: Start difference. First operand has 1417 places, 2267 transitions, 120164 flow. Second operand 51 states and 4943 transitions. [2021-10-16 23:16:00,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1467 places, 2681 transitions, 132069 flow [2021-10-16 23:16:29,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1427 places, 2681 transitions, 130866 flow, removed 289 selfloop flow, removed 40 redundant places. [2021-10-16 23:16:29,198 INFO L242 Difference]: Finished difference. Result has 1449 places, 2356 transitions, 127089 flow [2021-10-16 23:16:29,200 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=119018, PETRI_DIFFERENCE_MINUEND_PLACES=1377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1071, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=127089, PETRI_PLACES=1449, PETRI_TRANSITIONS=2356} [2021-10-16 23:16:29,200 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 1256 predicate places. [2021-10-16 23:16:29,200 INFO L470 AbstractCegarLoop]: Abstraction has has 1449 places, 2356 transitions, 127089 flow [2021-10-16 23:16:29,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:16:29,200 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:16:29,200 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:16:29,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-10-16 23:16:29,201 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:16:29,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:16:29,201 INFO L82 PathProgramCache]: Analyzing trace with hash 321098553, now seen corresponding path program 34 times [2021-10-16 23:16:29,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:16:29,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090044098] [2021-10-16 23:16:29,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:16:29,201 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:16:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:16:29,407 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 23:16:29,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:16:29,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090044098] [2021-10-16 23:16:29,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090044098] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:16:29,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:16:29,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-16 23:16:29,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644641690] [2021-10-16 23:16:29,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 23:16:29,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:16:29,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 23:16:29,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-10-16 23:16:29,409 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:16:29,409 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1449 places, 2356 transitions, 127089 flow. Second operand has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:16:29,409 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:16:29,409 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:16:29,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:16:47,251 INFO L129 PetriNetUnfolder]: 5291/15401 cut-off events. [2021-10-16 23:16:47,251 INFO L130 PetriNetUnfolder]: For 1603485/1603910 co-relation queries the response was YES. [2021-10-16 23:16:47,808 INFO L84 FinitePrefix]: Finished finitePrefix Result has 175434 conditions, 15401 events. 5291/15401 cut-off events. For 1603485/1603910 co-relation queries the response was YES. Maximal size of possible extension queue 388. Compared 155400 event pairs, 598 based on Foata normal form. 216/15450 useless extension candidates. Maximal degree in co-relation 174934. Up to 6236 conditions per place. [2021-10-16 23:16:47,875 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 1456 selfloop transitions, 1174 changer transitions 0/2715 dead transitions. [2021-10-16 23:16:47,875 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1502 places, 2715 transitions, 137707 flow [2021-10-16 23:16:47,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-10-16 23:16:47,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-10-16 23:16:47,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 5215 transitions. [2021-10-16 23:16:47,878 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4952516619183286 [2021-10-16 23:16:47,878 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 5215 transitions. [2021-10-16 23:16:47,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 5215 transitions. [2021-10-16 23:16:47,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:16:47,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 5215 transitions. [2021-10-16 23:16:47,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 96.57407407407408) internal successors, (5215), 54 states have internal predecessors, (5215), 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 23:16:47,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 195.0) internal successors, (10725), 55 states have internal predecessors, (10725), 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 23:16:47,886 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 195.0) internal successors, (10725), 55 states have internal predecessors, (10725), 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 23:16:47,887 INFO L186 Difference]: Start difference. First operand has 1449 places, 2356 transitions, 127089 flow. Second operand 54 states and 5215 transitions. [2021-10-16 23:16:47,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1502 places, 2715 transitions, 137707 flow [2021-10-16 23:17:15,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1481 places, 2715 transitions, 136892 flow, removed 231 selfloop flow, removed 21 redundant places. [2021-10-16 23:17:15,880 INFO L242 Difference]: Finished difference. Result has 1488 places, 2381 transitions, 132396 flow [2021-10-16 23:17:15,882 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=126312, PETRI_DIFFERENCE_MINUEND_PLACES=1428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=132396, PETRI_PLACES=1488, PETRI_TRANSITIONS=2381} [2021-10-16 23:17:15,882 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 1295 predicate places. [2021-10-16 23:17:15,882 INFO L470 AbstractCegarLoop]: Abstraction has has 1488 places, 2381 transitions, 132396 flow [2021-10-16 23:17:15,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:17:15,882 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:17:15,883 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:17:15,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-10-16 23:17:15,883 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:17:15,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:17:15,883 INFO L82 PathProgramCache]: Analyzing trace with hash 2001649957, now seen corresponding path program 35 times [2021-10-16 23:17:15,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:17:15,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814484994] [2021-10-16 23:17:15,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:17:15,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:17:15,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:17:16,112 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 23:17:16,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:17:16,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814484994] [2021-10-16 23:17:16,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814484994] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:17:16,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:17:16,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-16 23:17:16,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867036563] [2021-10-16 23:17:16,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 23:17:16,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:17:16,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 23:17:16,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-10-16 23:17:16,114 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:17:16,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1488 places, 2381 transitions, 132396 flow. Second operand has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:17:16,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:17:16,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:17:16,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:17:34,203 INFO L129 PetriNetUnfolder]: 5330/15529 cut-off events. [2021-10-16 23:17:34,203 INFO L130 PetriNetUnfolder]: For 1748244/1748667 co-relation queries the response was YES. [2021-10-16 23:17:34,672 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181809 conditions, 15529 events. 5330/15529 cut-off events. For 1748244/1748667 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 157164 event pairs, 593 based on Foata normal form. 215/15578 useless extension candidates. Maximal degree in co-relation 181302. Up to 6250 conditions per place. [2021-10-16 23:17:34,740 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 1470 selfloop transitions, 1203 changer transitions 0/2758 dead transitions. [2021-10-16 23:17:34,740 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1542 places, 2758 transitions, 144180 flow [2021-10-16 23:17:34,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-16 23:17:34,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2021-10-16 23:17:34,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 5312 transitions. [2021-10-16 23:17:34,743 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4952913752913753 [2021-10-16 23:17:34,743 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 5312 transitions. [2021-10-16 23:17:34,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 5312 transitions. [2021-10-16 23:17:34,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:17:34,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 5312 transitions. [2021-10-16 23:17:34,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 96.58181818181818) internal successors, (5312), 55 states have internal predecessors, (5312), 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 23:17:34,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 195.0) internal successors, (10920), 56 states have internal predecessors, (10920), 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 23:17:34,752 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 195.0) internal successors, (10920), 56 states have internal predecessors, (10920), 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 23:17:34,752 INFO L186 Difference]: Start difference. First operand has 1488 places, 2381 transitions, 132396 flow. Second operand 55 states and 5312 transitions. [2021-10-16 23:17:34,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1542 places, 2758 transitions, 144180 flow [2021-10-16 23:18:03,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1508 places, 2758 transitions, 143235 flow, removed 206 selfloop flow, removed 34 redundant places. [2021-10-16 23:18:03,819 INFO L242 Difference]: Finished difference. Result has 1519 places, 2417 transitions, 138684 flow [2021-10-16 23:18:03,820 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=131469, PETRI_DIFFERENCE_MINUEND_PLACES=1454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2381, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=55, PETRI_FLOW=138684, PETRI_PLACES=1519, PETRI_TRANSITIONS=2417} [2021-10-16 23:18:03,820 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 1326 predicate places. [2021-10-16 23:18:03,820 INFO L470 AbstractCegarLoop]: Abstraction has has 1519 places, 2417 transitions, 138684 flow [2021-10-16 23:18:03,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:18:03,821 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:18:03,821 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:18:03,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-10-16 23:18:03,821 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:18:03,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:18:03,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1189535297, now seen corresponding path program 36 times [2021-10-16 23:18:03,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:18:03,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227954606] [2021-10-16 23:18:03,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:18:03,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:18:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:18:04,027 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 23:18:04,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:18:04,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227954606] [2021-10-16 23:18:04,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227954606] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:18:04,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:18:04,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-16 23:18:04,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623126107] [2021-10-16 23:18:04,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 23:18:04,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:18:04,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 23:18:04,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-10-16 23:18:04,029 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:18:04,030 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1519 places, 2417 transitions, 138684 flow. Second operand has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:18:04,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:18:04,030 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:18:04,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:18:22,814 INFO L129 PetriNetUnfolder]: 5377/15659 cut-off events. [2021-10-16 23:18:22,814 INFO L130 PetriNetUnfolder]: For 1881955/1882381 co-relation queries the response was YES. [2021-10-16 23:18:23,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188453 conditions, 15659 events. 5377/15659 cut-off events. For 1881955/1882381 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 158739 event pairs, 594 based on Foata normal form. 220/15713 useless extension candidates. Maximal degree in co-relation 187935. Up to 6262 conditions per place. [2021-10-16 23:18:23,361 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 1492 selfloop transitions, 1228 changer transitions 0/2805 dead transitions. [2021-10-16 23:18:23,361 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1574 places, 2805 transitions, 150893 flow [2021-10-16 23:18:23,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-10-16 23:18:23,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-10-16 23:18:23,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 5407 transitions. [2021-10-16 23:18:23,365 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.49514652014652016 [2021-10-16 23:18:23,365 INFO L72 ComplementDD]: Start complementDD. Operand 56 states and 5407 transitions. [2021-10-16 23:18:23,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 5407 transitions. [2021-10-16 23:18:23,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:18:23,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 56 states and 5407 transitions. [2021-10-16 23:18:23,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 57 states, 56 states have (on average 96.55357142857143) internal successors, (5407), 56 states have internal predecessors, (5407), 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 23:18:23,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 57 states, 57 states have (on average 195.0) internal successors, (11115), 57 states have internal predecessors, (11115), 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 23:18:23,373 INFO L81 ComplementDD]: Finished complementDD. Result has 57 states, 57 states have (on average 195.0) internal successors, (11115), 57 states have internal predecessors, (11115), 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 23:18:23,373 INFO L186 Difference]: Start difference. First operand has 1519 places, 2417 transitions, 138684 flow. Second operand 56 states and 5407 transitions. [2021-10-16 23:18:23,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1574 places, 2805 transitions, 150893 flow [2021-10-16 23:18:56,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1535 places, 2805 transitions, 149471 flow, removed 331 selfloop flow, removed 39 redundant places. [2021-10-16 23:18:56,942 INFO L242 Difference]: Finished difference. Result has 1550 places, 2456 transitions, 144700 flow [2021-10-16 23:18:56,944 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=137288, PETRI_DIFFERENCE_MINUEND_PLACES=1480, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=56, PETRI_FLOW=144700, PETRI_PLACES=1550, PETRI_TRANSITIONS=2456} [2021-10-16 23:18:56,944 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 1357 predicate places. [2021-10-16 23:18:56,944 INFO L470 AbstractCegarLoop]: Abstraction has has 1550 places, 2456 transitions, 144700 flow [2021-10-16 23:18:56,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:18:56,944 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:18:56,944 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:18:56,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-10-16 23:18:56,944 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:18:56,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:18:56,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1299045283, now seen corresponding path program 37 times [2021-10-16 23:18:56,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:18:56,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530166168] [2021-10-16 23:18:56,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:18:56,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:18:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:18:57,168 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 23:18:57,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:18:57,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530166168] [2021-10-16 23:18:57,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530166168] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:18:57,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:18:57,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-16 23:18:57,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618095843] [2021-10-16 23:18:57,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 23:18:57,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:18:57,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 23:18:57,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2021-10-16 23:18:57,170 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 195 [2021-10-16 23:18:57,170 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1550 places, 2456 transitions, 144700 flow. Second operand has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:18:57,170 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:18:57,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 195 [2021-10-16 23:18:57,171 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:19:17,710 INFO L129 PetriNetUnfolder]: 5740/16832 cut-off events. [2021-10-16 23:19:17,710 INFO L130 PetriNetUnfolder]: For 2160318/2160762 co-relation queries the response was YES. [2021-10-16 23:19:18,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 204730 conditions, 16832 events. 5740/16832 cut-off events. For 2160318/2160762 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 173483 event pairs, 561 based on Foata normal form. 240/16894 useless extension candidates. Maximal degree in co-relation 204198. Up to 6204 conditions per place. [2021-10-16 23:19:18,318 INFO L132 encePairwiseOnDemand]: 161/195 looper letters, 1695 selfloop transitions, 1261 changer transitions 0/3041 dead transitions. [2021-10-16 23:19:18,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1610 places, 3041 transitions, 162744 flow [2021-10-16 23:19:18,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-16 23:19:18,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2021-10-16 23:19:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 5935 transitions. [2021-10-16 23:19:18,321 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4989491382934006 [2021-10-16 23:19:18,321 INFO L72 ComplementDD]: Start complementDD. Operand 61 states and 5935 transitions. [2021-10-16 23:19:18,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 5935 transitions. [2021-10-16 23:19:18,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:19:18,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 61 states and 5935 transitions. [2021-10-16 23:19:18,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 62 states, 61 states have (on average 97.29508196721312) internal successors, (5935), 61 states have internal predecessors, (5935), 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 23:19:18,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 62 states, 62 states have (on average 195.0) internal successors, (12090), 62 states have internal predecessors, (12090), 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 23:19:18,330 INFO L81 ComplementDD]: Finished complementDD. Result has 62 states, 62 states have (on average 195.0) internal successors, (12090), 62 states have internal predecessors, (12090), 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 23:19:18,330 INFO L186 Difference]: Start difference. First operand has 1550 places, 2456 transitions, 144700 flow. Second operand 61 states and 5935 transitions. [2021-10-16 23:19:18,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1610 places, 3041 transitions, 162744 flow [2021-10-16 23:19:54,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1572 places, 3041 transitions, 161384 flow, removed 367 selfloop flow, removed 38 redundant places. [2021-10-16 23:19:54,870 INFO L242 Difference]: Finished difference. Result has 1590 places, 2525 transitions, 152939 flow [2021-10-16 23:19:54,872 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=143356, PETRI_DIFFERENCE_MINUEND_PLACES=1512, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=152939, PETRI_PLACES=1590, PETRI_TRANSITIONS=2525} [2021-10-16 23:19:54,872 INFO L334 CegarLoopForPetriNet]: 193 programPoint places, 1397 predicate places. [2021-10-16 23:19:54,872 INFO L470 AbstractCegarLoop]: Abstraction has has 1590 places, 2525 transitions, 152939 flow [2021-10-16 23:19:54,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 90.5) internal successors, (1810), 20 states have internal predecessors, (1810), 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 23:19:54,873 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-16 23:19:54,873 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:19:54,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-10-16 23:19:54,873 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2021-10-16 23:19:54,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 23:19:54,873 INFO L82 PathProgramCache]: Analyzing trace with hash -669056469, now seen corresponding path program 38 times [2021-10-16 23:19:54,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 23:19:54,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341922311] [2021-10-16 23:19:54,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 23:19:54,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 23:19:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 23:19:55,184 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 23:19:55,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 23:19:55,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341922311] [2021-10-16 23:19:55,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341922311] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 23:19:55,186 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 23:19:55,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-10-16 23:19:55,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452008987] [2021-10-16 23:19:55,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-16 23:19:55,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 23:19:55,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-16 23:19:55,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2021-10-16 23:19:55,187 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 195 [2021-10-16 23:19:55,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1590 places, 2525 transitions, 152939 flow. Second operand has 23 states, 23 states have (on average 84.30434782608695) internal successors, (1939), 23 states have internal predecessors, (1939), 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 23:19:55,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-16 23:19:55,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 195 [2021-10-16 23:19:55,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-16 23:20:22,058 INFO L129 PetriNetUnfolder]: 6916/19482 cut-off events. [2021-10-16 23:20:22,059 INFO L130 PetriNetUnfolder]: For 2730313/2730825 co-relation queries the response was YES. [2021-10-16 23:20:22,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 242295 conditions, 19482 events. 6916/19482 cut-off events. For 2730313/2730825 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 200402 event pairs, 698 based on Foata normal form. 241/19541 useless extension candidates. Maximal degree in co-relation 241745. Up to 7512 conditions per place. [2021-10-16 23:20:22,925 INFO L132 encePairwiseOnDemand]: 155/195 looper letters, 1708 selfloop transitions, 1348 changer transitions 0/3135 dead transitions. [2021-10-16 23:20:22,925 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1648 places, 3135 transitions, 175625 flow [2021-10-16 23:20:22,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-16 23:20:22,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-10-16 23:20:22,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 5380 transitions. [2021-10-16 23:20:22,928 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.46762277270751845 [2021-10-16 23:20:22,928 INFO L72 ComplementDD]: Start complementDD. Operand 59 states and 5380 transitions. [2021-10-16 23:20:22,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 5380 transitions. [2021-10-16 23:20:22,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-16 23:20:22,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 59 states and 5380 transitions. [2021-10-16 23:20:22,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 60 states, 59 states have (on average 91.1864406779661) internal successors, (5380), 59 states have internal predecessors, (5380), 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 23:20:22,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:20:22,937 INFO L81 ComplementDD]: Finished complementDD. Result has 60 states, 60 states have (on average 195.0) internal successors, (11700), 60 states have internal predecessors, (11700), 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 23:20:22,937 INFO L186 Difference]: Start difference. First operand has 1590 places, 2525 transitions, 152939 flow. Second operand 59 states and 5380 transitions. [2021-10-16 23:20:22,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1648 places, 3135 transitions, 175625 flow Received shutdown request... [2021-10-16 23:20:29,355 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:20:29,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-10-16 23:20:29,356 WARN L594 AbstractCegarLoop]: Verification canceled: while executing RemoveRedundantFlow. [2021-10-16 23:20:29,357 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:20:29,357 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:20:29,357 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:20:29,357 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:20:29,357 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:20:29,357 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:20:29,357 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 23:20:29,357 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr0ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:20:29,357 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:20:29,357 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:20:29,357 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:20:29,357 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr1ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:20:29,357 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr2ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:20:29,357 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location t_funErr3ASSERT_VIOLATIONDATA_RACE [2021-10-16 23:20:29,363 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 23:20:29,363 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 23:20:29,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:20:29 BasicIcfg [2021-10-16 23:20:29,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 23:20:29,365 INFO L168 Benchmark]: Toolchain (without parser) took 808380.45 ms. Allocated memory was 201.3 MB in the beginning and 7.2 GB in the end (delta: 7.0 GB). Free memory was 149.3 MB in the beginning and 3.9 GB in the end (delta: -3.7 GB). Peak memory consumption was 3.8 GB. Max. memory is 8.0 GB. [2021-10-16 23:20:29,365 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 201.3 MB. Free memory is still 167.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-16 23:20:29,366 INFO L168 Benchmark]: CACSL2BoogieTranslator took 515.44 ms. Allocated memory is still 201.3 MB. Free memory was 149.1 MB in the beginning and 148.4 MB in the end (delta: 692.8 kB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. [2021-10-16 23:20:29,366 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.17 ms. Allocated memory is still 201.3 MB. Free memory was 148.4 MB in the beginning and 145.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:20:29,366 INFO L168 Benchmark]: Boogie Preprocessor took 31.12 ms. Allocated memory is still 201.3 MB. Free memory was 145.3 MB in the beginning and 142.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-16 23:20:29,366 INFO L168 Benchmark]: RCFGBuilder took 458.46 ms. Allocated memory is still 201.3 MB. Free memory was 142.7 MB in the beginning and 122.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-10-16 23:20:29,366 INFO L168 Benchmark]: TraceAbstraction took 807329.52 ms. Allocated memory was 201.3 MB in the beginning and 7.2 GB in the end (delta: 7.0 GB). Free memory was 122.2 MB in the beginning and 3.9 GB in the end (delta: -3.8 GB). Peak memory consumption was 3.8 GB. Max. memory is 8.0 GB. [2021-10-16 23:20:29,367 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 201.3 MB. Free memory is still 167.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 515.44 ms. Allocated memory is still 201.3 MB. Free memory was 149.1 MB in the beginning and 148.4 MB in the end (delta: 692.8 kB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 42.17 ms. Allocated memory is still 201.3 MB. Free memory was 148.4 MB in the beginning and 145.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 31.12 ms. Allocated memory is still 201.3 MB. Free memory was 145.3 MB in the beginning and 142.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 458.46 ms. Allocated memory is still 201.3 MB. Free memory was 142.7 MB in the beginning and 122.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 807329.52 ms. Allocated memory was 201.3 MB in the beginning and 7.2 GB in the end (delta: 7.0 GB). Free memory was 122.2 MB in the beginning and 3.9 GB in the end (delta: -3.8 GB). Peak memory consumption was 3.8 GB. 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 - TimeoutResultAtElement [Line: 1221]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1221]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1222]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1241]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1221]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1222]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1243]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1244]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1222]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1232]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 1233]: Timeout (TraceAbstraction) Unable to prove that there are no data races Cancelled while executing RemoveRedundantFlow. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 263 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 807207.4ms, OverallIterations: 46, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 794191.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 64.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4675 SDtfs, 28859 SDslu, 36893 SDs, 0 SdLazy, 90474 SolverSat, 5229 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32383.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2695 GetRequests, 63 SyntacticMatches, 30 SemanticMatches, 2602 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51171 ImplicationChecksByTransitivity, 36100.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=152939occurred in iteration=45, InterpolantAutomatonStates: 2183, 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: 109.6ms SsaConstructionTime, 526.1ms SatisfiabilityAnalysisTime, 11959.9ms InterpolantComputationTime, 5552 NumberOfCodeBlocks, 5552 NumberOfCodeBlocksAsserted, 46 NumberOfCheckSat, 5506 ConstructedInterpolants, 0 QuantifiedInterpolants, 65481 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 46 InterpolantComputations, 46 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 could not prove your program: Timeout [2021-10-16 23:20:29,376 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end Completed graceful shutdown