./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:33:39,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:33:39,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:33:39,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:33:39,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:33:39,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:33:39,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:33:39,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:33:39,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:33:39,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:33:39,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:33:39,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:33:39,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:33:39,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:33:39,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:33:39,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:33:39,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:33:39,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:33:39,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:33:39,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:33:39,499 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:33:39,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:33:39,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:33:39,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:33:39,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:33:39,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:33:39,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:33:39,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:33:39,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:33:39,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:33:39,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:33:39,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:33:39,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:33:39,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:33:39,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:33:39,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:33:39,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:33:39,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:33:39,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:33:39,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:33:39,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:33:39,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:33:39,521 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:33:39,535 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:33:39,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:33:39,535 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:33:39,535 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:33:39,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:33:39,536 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:33:39,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:33:39,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:33:39,537 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:33:39,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:33:39,537 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:33:39,537 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:33:39,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:33:39,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:33:39,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:33:39,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:33:39,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:33:39,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:33:39,538 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:33:39,538 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:33:39,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:33:39,539 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:33:39,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:33:39,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:33:39,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:33:39,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:33:39,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:39,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:33:39,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:33:39,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:33:39,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:33:39,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:33:39,540 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:33:39,540 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:33:39,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:33:39,541 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e [2022-04-18 16:33:39,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:33:39,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:33:39,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:33:39,754 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:33:39,756 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:33:39,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-symm.wvr.c [2022-04-18 16:33:39,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d157ca13/ec50a87038da4e74893b5e762c53d5f9/FLAG69e3a7336 [2022-04-18 16:33:40,166 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:33:40,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-symm.wvr.c [2022-04-18 16:33:40,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d157ca13/ec50a87038da4e74893b5e762c53d5f9/FLAG69e3a7336 [2022-04-18 16:33:40,589 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d157ca13/ec50a87038da4e74893b5e762c53d5f9 [2022-04-18 16:33:40,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:33:40,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:33:40,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:40,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:33:40,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:33:40,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:40" (1/1) ... [2022-04-18 16:33:40,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b41066d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:40, skipping insertion in model container [2022-04-18 16:33:40,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:33:40" (1/1) ... [2022-04-18 16:33:40,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:33:40,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:33:40,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-symm.wvr.c[2848,2861] [2022-04-18 16:33:40,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:40,806 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:33:40,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-word-symm.wvr.c[2848,2861] [2022-04-18 16:33:40,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:33:40,841 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:33:40,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:40 WrapperNode [2022-04-18 16:33:40,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:33:40,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:40,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:33:40,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:33:40,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:40" (1/1) ... [2022-04-18 16:33:40,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:40" (1/1) ... [2022-04-18 16:33:40,899 INFO L137 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 204 [2022-04-18 16:33:40,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:33:40,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:33:40,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:33:40,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:33:40,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:40" (1/1) ... [2022-04-18 16:33:40,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:40" (1/1) ... [2022-04-18 16:33:40,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:40" (1/1) ... [2022-04-18 16:33:40,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:40" (1/1) ... [2022-04-18 16:33:40,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:40" (1/1) ... [2022-04-18 16:33:40,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:40" (1/1) ... [2022-04-18 16:33:40,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:40" (1/1) ... [2022-04-18 16:33:40,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:33:40,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:33:40,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:33:40,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:33:40,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:40" (1/1) ... [2022-04-18 16:33:40,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:33:40,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:33:40,989 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) [2022-04-18 16:33:40,992 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 [2022-04-18 16:33:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:33:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:33:41,017 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:33:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:33:41,018 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:33:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:33:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:33:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:33:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:33:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:33:41,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:33:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:33:41,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:33:41,020 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 16:33:41,117 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:33:41,118 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:33:41,594 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:33:41,604 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:33:41,604 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-04-18 16:33:41,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:41 BoogieIcfgContainer [2022-04-18 16:33:41,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:33:41,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:33:41,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:33:41,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:33:41,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:33:40" (1/3) ... [2022-04-18 16:33:41,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25374397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:41, skipping insertion in model container [2022-04-18 16:33:41,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:33:40" (2/3) ... [2022-04-18 16:33:41,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25374397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:33:41, skipping insertion in model container [2022-04-18 16:33:41,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:41" (3/3) ... [2022-04-18 16:33:41,615 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-word-symm.wvr.c [2022-04-18 16:33:41,618 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:33:41,618 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:33:41,618 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2022-04-18 16:33:41,618 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:33:41,716 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-04-18 16:33:41,759 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:33:41,765 INFO L340 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=true, mAutomataTypeConcurrency=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 [2022-04-18 16:33:41,765 INFO L341 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2022-04-18 16:33:41,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 481 places, 504 transitions, 1024 flow [2022-04-18 16:33:41,940 INFO L129 PetriNetUnfolder]: 30/502 cut-off events. [2022-04-18 16:33:41,941 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-04-18 16:33:41,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 511 conditions, 502 events. 30/502 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1182 event pairs, 0 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 296. Up to 3 conditions per place. [2022-04-18 16:33:41,951 INFO L82 GeneralOperation]: Start removeDead. Operand has 481 places, 504 transitions, 1024 flow [2022-04-18 16:33:41,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 460 places, 481 transitions, 974 flow [2022-04-18 16:33:41,964 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2022-04-18 16:33:41,965 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:33:41,965 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:41,965 INFO L255 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] [2022-04-18 16:33:41,966 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:41,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:41,970 INFO L85 PathProgramCache]: Analyzing trace with hash 178501308, now seen corresponding path program 1 times [2022-04-18 16:33:41,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:41,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608184923] [2022-04-18 16:33:41,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:41,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:42,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:42,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:42,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608184923] [2022-04-18 16:33:42,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608184923] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:42,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:42,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:42,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404892343] [2022-04-18 16:33:42,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:42,139 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:42,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:42,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:42,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:42,178 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 504 [2022-04-18 16:33:42,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 481 transitions, 974 flow. Second operand has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:42,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:42,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 504 [2022-04-18 16:33:42,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:42,408 INFO L129 PetriNetUnfolder]: 129/1570 cut-off events. [2022-04-18 16:33:42,408 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-04-18 16:33:42,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1715 conditions, 1570 events. 129/1570 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10409 event pairs, 48 based on Foata normal form. 22/1263 useless extension candidates. Maximal degree in co-relation 1337. Up to 116 conditions per place. [2022-04-18 16:33:42,422 INFO L132 encePairwiseOnDemand]: 491/504 looper letters, 19 selfloop transitions, 2 changer transitions 6/470 dead transitions. [2022-04-18 16:33:42,422 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 470 transitions, 994 flow [2022-04-18 16:33:42,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:42,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:42,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-04-18 16:33:42,439 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9537037037037037 [2022-04-18 16:33:42,440 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-04-18 16:33:42,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-04-18 16:33:42,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:42,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-04-18 16:33:42,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:42,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:42,468 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:42,470 INFO L186 Difference]: Start difference. First operand has 460 places, 481 transitions, 974 flow. Second operand 3 states and 1442 transitions. [2022-04-18 16:33:42,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 470 transitions, 994 flow [2022-04-18 16:33:42,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 470 transitions, 986 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:33:42,488 INFO L242 Difference]: Finished difference. Result has 457 places, 464 transitions, 936 flow [2022-04-18 16:33:42,491 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=936, PETRI_PLACES=457, PETRI_TRANSITIONS=464} [2022-04-18 16:33:42,493 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -3 predicate places. [2022-04-18 16:33:42,493 INFO L478 AbstractCegarLoop]: Abstraction has has 457 places, 464 transitions, 936 flow [2022-04-18 16:33:42,494 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:42,494 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:42,495 INFO L255 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] [2022-04-18 16:33:42,495 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:33:42,495 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:42,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:42,496 INFO L85 PathProgramCache]: Analyzing trace with hash 624599664, now seen corresponding path program 1 times [2022-04-18 16:33:42,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:42,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073612811] [2022-04-18 16:33:42,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:42,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:42,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:42,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:42,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073612811] [2022-04-18 16:33:42,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073612811] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:42,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:42,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:42,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748074638] [2022-04-18 16:33:42,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:42,525 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:42,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:42,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:42,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:42,529 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 504 [2022-04-18 16:33:42,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 464 transitions, 936 flow. Second operand has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:42,531 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:42,531 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 504 [2022-04-18 16:33:42,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:42,710 INFO L129 PetriNetUnfolder]: 125/1428 cut-off events. [2022-04-18 16:33:42,710 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-04-18 16:33:42,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1563 conditions, 1428 events. 125/1428 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 9044 event pairs, 48 based on Foata normal form. 0/1136 useless extension candidates. Maximal degree in co-relation 1528. Up to 121 conditions per place. [2022-04-18 16:33:42,733 INFO L132 encePairwiseOnDemand]: 501/504 looper letters, 19 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2022-04-18 16:33:42,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 463 transitions, 976 flow [2022-04-18 16:33:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:42,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:42,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1432 transitions. [2022-04-18 16:33:42,737 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9470899470899471 [2022-04-18 16:33:42,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1432 transitions. [2022-04-18 16:33:42,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1432 transitions. [2022-04-18 16:33:42,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:42,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1432 transitions. [2022-04-18 16:33:42,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:42,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:42,743 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:42,743 INFO L186 Difference]: Start difference. First operand has 457 places, 464 transitions, 936 flow. Second operand 3 states and 1432 transitions. [2022-04-18 16:33:42,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 463 transitions, 976 flow [2022-04-18 16:33:42,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 463 transitions, 972 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:42,751 INFO L242 Difference]: Finished difference. Result has 450 places, 463 transitions, 934 flow [2022-04-18 16:33:42,752 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=934, PETRI_PLACES=450, PETRI_TRANSITIONS=463} [2022-04-18 16:33:42,753 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -10 predicate places. [2022-04-18 16:33:42,753 INFO L478 AbstractCegarLoop]: Abstraction has has 450 places, 463 transitions, 934 flow [2022-04-18 16:33:42,754 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:42,754 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:42,755 INFO L255 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] [2022-04-18 16:33:42,755 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:33:42,755 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:42,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:42,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1040060785, now seen corresponding path program 1 times [2022-04-18 16:33:42,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:42,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965671992] [2022-04-18 16:33:42,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:42,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:42,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:42,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:42,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:42,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965671992] [2022-04-18 16:33:42,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965671992] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:42,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:42,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:42,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697133966] [2022-04-18 16:33:42,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:42,808 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:42,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:42,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:42,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:42,811 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 467 out of 504 [2022-04-18 16:33:42,813 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 463 transitions, 934 flow. Second operand has 3 states, 3 states have (on average 468.3333333333333) internal successors, (1405), 3 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:42,813 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:42,813 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 467 of 504 [2022-04-18 16:33:42,813 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:42,998 INFO L129 PetriNetUnfolder]: 129/1500 cut-off events. [2022-04-18 16:33:42,999 INFO L130 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-04-18 16:33:43,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1653 conditions, 1500 events. 129/1500 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 9526 event pairs, 48 based on Foata normal form. 0/1199 useless extension candidates. Maximal degree in co-relation 1611. Up to 139 conditions per place. [2022-04-18 16:33:43,012 INFO L132 encePairwiseOnDemand]: 501/504 looper letters, 22 selfloop transitions, 2 changer transitions 0/462 dead transitions. [2022-04-18 16:33:43,012 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 462 transitions, 980 flow [2022-04-18 16:33:43,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:43,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:43,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1426 transitions. [2022-04-18 16:33:43,016 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9431216931216931 [2022-04-18 16:33:43,016 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1426 transitions. [2022-04-18 16:33:43,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1426 transitions. [2022-04-18 16:33:43,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:43,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1426 transitions. [2022-04-18 16:33:43,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,023 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,023 INFO L186 Difference]: Start difference. First operand has 450 places, 463 transitions, 934 flow. Second operand 3 states and 1426 transitions. [2022-04-18 16:33:43,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 462 transitions, 980 flow [2022-04-18 16:33:43,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 462 transitions, 976 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:43,029 INFO L242 Difference]: Finished difference. Result has 449 places, 462 transitions, 932 flow [2022-04-18 16:33:43,030 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=928, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=932, PETRI_PLACES=449, PETRI_TRANSITIONS=462} [2022-04-18 16:33:43,032 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -11 predicate places. [2022-04-18 16:33:43,032 INFO L478 AbstractCegarLoop]: Abstraction has has 449 places, 462 transitions, 932 flow [2022-04-18 16:33:43,033 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 468.3333333333333) internal successors, (1405), 3 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,033 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:43,033 INFO L255 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] [2022-04-18 16:33:43,034 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:33:43,034 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:43,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:43,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1454560472, now seen corresponding path program 1 times [2022-04-18 16:33:43,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:43,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445238211] [2022-04-18 16:33:43,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:43,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:43,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:43,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:43,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445238211] [2022-04-18 16:33:43,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445238211] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:43,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:43,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:43,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447565976] [2022-04-18 16:33:43,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:43,099 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:43,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:43,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:43,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:43,101 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 467 out of 504 [2022-04-18 16:33:43,102 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 462 transitions, 932 flow. Second operand has 3 states, 3 states have (on average 468.3333333333333) internal successors, (1405), 3 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,102 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:43,102 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 467 of 504 [2022-04-18 16:33:43,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:43,265 INFO L129 PetriNetUnfolder]: 129/1313 cut-off events. [2022-04-18 16:33:43,266 INFO L130 PetriNetUnfolder]: For 20/24 co-relation queries the response was YES. [2022-04-18 16:33:43,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1475 conditions, 1313 events. 129/1313 cut-off events. For 20/24 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8023 event pairs, 48 based on Foata normal form. 0/1049 useless extension candidates. Maximal degree in co-relation 1426. Up to 148 conditions per place. [2022-04-18 16:33:43,295 INFO L132 encePairwiseOnDemand]: 501/504 looper letters, 22 selfloop transitions, 2 changer transitions 0/461 dead transitions. [2022-04-18 16:33:43,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 461 transitions, 978 flow [2022-04-18 16:33:43,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:43,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:43,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1426 transitions. [2022-04-18 16:33:43,298 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9431216931216931 [2022-04-18 16:33:43,298 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1426 transitions. [2022-04-18 16:33:43,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1426 transitions. [2022-04-18 16:33:43,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:43,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1426 transitions. [2022-04-18 16:33:43,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,306 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,307 INFO L186 Difference]: Start difference. First operand has 449 places, 462 transitions, 932 flow. Second operand 3 states and 1426 transitions. [2022-04-18 16:33:43,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 461 transitions, 978 flow [2022-04-18 16:33:43,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 461 transitions, 974 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:43,316 INFO L242 Difference]: Finished difference. Result has 448 places, 461 transitions, 930 flow [2022-04-18 16:33:43,317 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=926, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=930, PETRI_PLACES=448, PETRI_TRANSITIONS=461} [2022-04-18 16:33:43,318 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -12 predicate places. [2022-04-18 16:33:43,318 INFO L478 AbstractCegarLoop]: Abstraction has has 448 places, 461 transitions, 930 flow [2022-04-18 16:33:43,319 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 468.3333333333333) internal successors, (1405), 3 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,319 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:43,319 INFO L255 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] [2022-04-18 16:33:43,319 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:33:43,319 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:43,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:43,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1660972203, now seen corresponding path program 1 times [2022-04-18 16:33:43,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:43,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277922450] [2022-04-18 16:33:43,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:43,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:43,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:43,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:43,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277922450] [2022-04-18 16:33:43,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277922450] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:43,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:43,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:43,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15226972] [2022-04-18 16:33:43,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:43,350 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:43,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:43,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:43,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:43,353 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 504 [2022-04-18 16:33:43,354 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 461 transitions, 930 flow. Second operand has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,354 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:43,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 504 [2022-04-18 16:33:43,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:43,490 INFO L129 PetriNetUnfolder]: 91/1266 cut-off events. [2022-04-18 16:33:43,491 INFO L130 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2022-04-18 16:33:43,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1355 conditions, 1266 events. 91/1266 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7363 event pairs, 24 based on Foata normal form. 0/1043 useless extension candidates. Maximal degree in co-relation 1298. Up to 76 conditions per place. [2022-04-18 16:33:43,500 INFO L132 encePairwiseOnDemand]: 498/504 looper letters, 15 selfloop transitions, 1 changer transitions 0/456 dead transitions. [2022-04-18 16:33:43,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 456 transitions, 952 flow [2022-04-18 16:33:43,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:43,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:43,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1431 transitions. [2022-04-18 16:33:43,503 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9464285714285714 [2022-04-18 16:33:43,503 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1431 transitions. [2022-04-18 16:33:43,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1431 transitions. [2022-04-18 16:33:43,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:43,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1431 transitions. [2022-04-18 16:33:43,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,509 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,509 INFO L186 Difference]: Start difference. First operand has 448 places, 461 transitions, 930 flow. Second operand 3 states and 1431 transitions. [2022-04-18 16:33:43,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 456 transitions, 952 flow [2022-04-18 16:33:43,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 456 transitions, 948 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:43,516 INFO L242 Difference]: Finished difference. Result has 443 places, 456 transitions, 918 flow [2022-04-18 16:33:43,516 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=918, PETRI_PLACES=443, PETRI_TRANSITIONS=456} [2022-04-18 16:33:43,517 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -17 predicate places. [2022-04-18 16:33:43,517 INFO L478 AbstractCegarLoop]: Abstraction has has 443 places, 456 transitions, 918 flow [2022-04-18 16:33:43,518 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,518 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:43,518 INFO L255 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] [2022-04-18 16:33:43,519 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:33:43,519 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:43,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:43,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1969097157, now seen corresponding path program 1 times [2022-04-18 16:33:43,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:43,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478946271] [2022-04-18 16:33:43,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:43,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:43,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:43,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:43,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478946271] [2022-04-18 16:33:43,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478946271] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:43,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:43,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:43,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023509509] [2022-04-18 16:33:43,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:43,553 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:43,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:43,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:43,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:43,555 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 504 [2022-04-18 16:33:43,557 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 456 transitions, 918 flow. Second operand has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,557 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:43,557 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 504 [2022-04-18 16:33:43,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:43,717 INFO L129 PetriNetUnfolder]: 133/1426 cut-off events. [2022-04-18 16:33:43,718 INFO L130 PetriNetUnfolder]: For 21/22 co-relation queries the response was YES. [2022-04-18 16:33:43,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1581 conditions, 1426 events. 133/1426 cut-off events. For 21/22 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8269 event pairs, 48 based on Foata normal form. 0/1161 useless extension candidates. Maximal degree in co-relation 1525. Up to 142 conditions per place. [2022-04-18 16:33:43,728 INFO L132 encePairwiseOnDemand]: 501/504 looper letters, 19 selfloop transitions, 2 changer transitions 0/455 dead transitions. [2022-04-18 16:33:43,729 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 455 transitions, 958 flow [2022-04-18 16:33:43,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:43,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:43,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1432 transitions. [2022-04-18 16:33:43,731 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9470899470899471 [2022-04-18 16:33:43,732 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1432 transitions. [2022-04-18 16:33:43,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1432 transitions. [2022-04-18 16:33:43,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:43,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1432 transitions. [2022-04-18 16:33:43,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,738 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,738 INFO L186 Difference]: Start difference. First operand has 443 places, 456 transitions, 918 flow. Second operand 3 states and 1432 transitions. [2022-04-18 16:33:43,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 455 transitions, 958 flow [2022-04-18 16:33:43,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 455 transitions, 957 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:33:43,744 INFO L242 Difference]: Finished difference. Result has 443 places, 455 transitions, 919 flow [2022-04-18 16:33:43,744 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=919, PETRI_PLACES=443, PETRI_TRANSITIONS=455} [2022-04-18 16:33:43,745 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -17 predicate places. [2022-04-18 16:33:43,745 INFO L478 AbstractCegarLoop]: Abstraction has has 443 places, 455 transitions, 919 flow [2022-04-18 16:33:43,746 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,746 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:43,746 INFO L255 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] [2022-04-18 16:33:43,747 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:33:43,747 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:43,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:43,747 INFO L85 PathProgramCache]: Analyzing trace with hash 893458395, now seen corresponding path program 1 times [2022-04-18 16:33:43,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:43,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785638686] [2022-04-18 16:33:43,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:43,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:43,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:43,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:43,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785638686] [2022-04-18 16:33:43,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785638686] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:43,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:43,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:43,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892786508] [2022-04-18 16:33:43,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:43,882 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:43,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:43,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:43,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:43,887 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 504 [2022-04-18 16:33:43,889 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 455 transitions, 919 flow. Second operand has 6 states, 6 states have (on average 395.8333333333333) internal successors, (2375), 6 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:43,889 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:43,889 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 504 [2022-04-18 16:33:43,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:47,269 INFO L129 PetriNetUnfolder]: 9342/28725 cut-off events. [2022-04-18 16:33:47,270 INFO L130 PetriNetUnfolder]: For 68/79 co-relation queries the response was YES. [2022-04-18 16:33:47,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41732 conditions, 28725 events. 9342/28725 cut-off events. For 68/79 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 318137 event pairs, 7968 based on Foata normal form. 0/23323 useless extension candidates. Maximal degree in co-relation 41677. Up to 12966 conditions per place. [2022-04-18 16:33:47,486 INFO L132 encePairwiseOnDemand]: 492/504 looper letters, 86 selfloop transitions, 10 changer transitions 0/453 dead transitions. [2022-04-18 16:33:47,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 453 transitions, 1107 flow [2022-04-18 16:33:47,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:33:47,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:33:47,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2462 transitions. [2022-04-18 16:33:47,490 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8141534391534392 [2022-04-18 16:33:47,491 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2462 transitions. [2022-04-18 16:33:47,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2462 transitions. [2022-04-18 16:33:47,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:47,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2462 transitions. [2022-04-18 16:33:47,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 410.3333333333333) internal successors, (2462), 6 states have internal predecessors, (2462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,499 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,499 INFO L186 Difference]: Start difference. First operand has 443 places, 455 transitions, 919 flow. Second operand 6 states and 2462 transitions. [2022-04-18 16:33:47,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 453 transitions, 1107 flow [2022-04-18 16:33:47,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 453 transitions, 1103 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:47,506 INFO L242 Difference]: Finished difference. Result has 444 places, 453 transitions, 931 flow [2022-04-18 16:33:47,507 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=931, PETRI_PLACES=444, PETRI_TRANSITIONS=453} [2022-04-18 16:33:47,507 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -16 predicate places. [2022-04-18 16:33:47,508 INFO L478 AbstractCegarLoop]: Abstraction has has 444 places, 453 transitions, 931 flow [2022-04-18 16:33:47,508 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 395.8333333333333) internal successors, (2375), 6 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,509 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:47,509 INFO L255 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] [2022-04-18 16:33:47,509 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:33:47,509 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:47,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:47,509 INFO L85 PathProgramCache]: Analyzing trace with hash -516272356, now seen corresponding path program 1 times [2022-04-18 16:33:47,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:47,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608732849] [2022-04-18 16:33:47,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:47,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:47,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:47,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:47,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608732849] [2022-04-18 16:33:47,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608732849] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:47,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:47,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:47,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458236681] [2022-04-18 16:33:47,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:47,534 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:47,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:47,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:47,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:47,536 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 504 [2022-04-18 16:33:47,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 453 transitions, 931 flow. Second operand has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:47,538 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 504 [2022-04-18 16:33:47,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:47,649 INFO L129 PetriNetUnfolder]: 92/1124 cut-off events. [2022-04-18 16:33:47,650 INFO L130 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2022-04-18 16:33:47,657 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 1124 events. 92/1124 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6271 event pairs, 24 based on Foata normal form. 0/944 useless extension candidates. Maximal degree in co-relation 1195. Up to 82 conditions per place. [2022-04-18 16:33:47,662 INFO L132 encePairwiseOnDemand]: 498/504 looper letters, 15 selfloop transitions, 1 changer transitions 0/448 dead transitions. [2022-04-18 16:33:47,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 448 transitions, 953 flow [2022-04-18 16:33:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:47,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:47,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1431 transitions. [2022-04-18 16:33:47,665 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9464285714285714 [2022-04-18 16:33:47,665 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1431 transitions. [2022-04-18 16:33:47,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1431 transitions. [2022-04-18 16:33:47,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:47,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1431 transitions. [2022-04-18 16:33:47,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,670 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,670 INFO L186 Difference]: Start difference. First operand has 444 places, 453 transitions, 931 flow. Second operand 3 states and 1431 transitions. [2022-04-18 16:33:47,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 448 transitions, 953 flow [2022-04-18 16:33:47,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 448 transitions, 933 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:33:47,677 INFO L242 Difference]: Finished difference. Result has 436 places, 448 transitions, 903 flow [2022-04-18 16:33:47,678 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=903, PETRI_PLACES=436, PETRI_TRANSITIONS=448} [2022-04-18 16:33:47,679 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -24 predicate places. [2022-04-18 16:33:47,679 INFO L478 AbstractCegarLoop]: Abstraction has has 436 places, 448 transitions, 903 flow [2022-04-18 16:33:47,680 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,680 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:47,680 INFO L255 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] [2022-04-18 16:33:47,680 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:33:47,681 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:47,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:47,681 INFO L85 PathProgramCache]: Analyzing trace with hash 633337230, now seen corresponding path program 1 times [2022-04-18 16:33:47,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:47,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968665553] [2022-04-18 16:33:47,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:47,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:47,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:47,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968665553] [2022-04-18 16:33:47,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968665553] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:47,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:47,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:47,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970066456] [2022-04-18 16:33:47,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:47,793 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:47,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:47,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:47,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:47,795 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 504 [2022-04-18 16:33:47,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 448 transitions, 903 flow. Second operand has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:47,796 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 504 [2022-04-18 16:33:47,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:47,909 INFO L129 PetriNetUnfolder]: 125/1391 cut-off events. [2022-04-18 16:33:47,909 INFO L130 PetriNetUnfolder]: For 18/19 co-relation queries the response was YES. [2022-04-18 16:33:47,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1539 conditions, 1391 events. 125/1391 cut-off events. For 18/19 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 8009 event pairs, 48 based on Foata normal form. 0/1165 useless extension candidates. Maximal degree in co-relation 1483. Up to 134 conditions per place. [2022-04-18 16:33:47,920 INFO L132 encePairwiseOnDemand]: 501/504 looper letters, 19 selfloop transitions, 2 changer transitions 0/447 dead transitions. [2022-04-18 16:33:47,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 447 transitions, 943 flow [2022-04-18 16:33:47,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:47,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:47,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1432 transitions. [2022-04-18 16:33:47,923 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9470899470899471 [2022-04-18 16:33:47,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1432 transitions. [2022-04-18 16:33:47,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1432 transitions. [2022-04-18 16:33:47,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:47,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1432 transitions. [2022-04-18 16:33:47,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,927 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,927 INFO L186 Difference]: Start difference. First operand has 436 places, 448 transitions, 903 flow. Second operand 3 states and 1432 transitions. [2022-04-18 16:33:47,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 447 transitions, 943 flow [2022-04-18 16:33:47,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 447 transitions, 942 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:33:47,933 INFO L242 Difference]: Finished difference. Result has 436 places, 447 transitions, 904 flow [2022-04-18 16:33:47,934 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=904, PETRI_PLACES=436, PETRI_TRANSITIONS=447} [2022-04-18 16:33:47,935 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -24 predicate places. [2022-04-18 16:33:47,935 INFO L478 AbstractCegarLoop]: Abstraction has has 436 places, 447 transitions, 904 flow [2022-04-18 16:33:47,936 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,936 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:47,936 INFO L255 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] [2022-04-18 16:33:47,936 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:33:47,936 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:47,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:47,937 INFO L85 PathProgramCache]: Analyzing trace with hash -678539360, now seen corresponding path program 1 times [2022-04-18 16:33:47,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:47,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951558056] [2022-04-18 16:33:47,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:47,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:47,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:47,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:47,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951558056] [2022-04-18 16:33:47,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951558056] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:47,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:47,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:47,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372215843] [2022-04-18 16:33:47,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:47,966 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:47,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:47,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:47,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:47,968 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 504 [2022-04-18 16:33:47,969 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 447 transitions, 904 flow. Second operand has 3 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:47,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:47,969 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 504 [2022-04-18 16:33:47,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:48,065 INFO L129 PetriNetUnfolder]: 91/1247 cut-off events. [2022-04-18 16:33:48,065 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 16:33:48,070 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 1247 events. 91/1247 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7286 event pairs, 16 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1265. Up to 58 conditions per place. [2022-04-18 16:33:48,074 INFO L132 encePairwiseOnDemand]: 498/504 looper letters, 15 selfloop transitions, 2 changer transitions 0/446 dead transitions. [2022-04-18 16:33:48,074 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 446 transitions, 937 flow [2022-04-18 16:33:48,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:48,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:48,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1440 transitions. [2022-04-18 16:33:48,077 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2022-04-18 16:33:48,077 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1440 transitions. [2022-04-18 16:33:48,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1440 transitions. [2022-04-18 16:33:48,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:48,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1440 transitions. [2022-04-18 16:33:48,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.0) internal successors, (1440), 3 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:48,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:48,082 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:48,082 INFO L186 Difference]: Start difference. First operand has 436 places, 447 transitions, 904 flow. Second operand 3 states and 1440 transitions. [2022-04-18 16:33:48,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 446 transitions, 937 flow [2022-04-18 16:33:48,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 446 transitions, 933 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:48,088 INFO L242 Difference]: Finished difference. Result has 433 places, 445 transitions, 906 flow [2022-04-18 16:33:48,089 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=906, PETRI_PLACES=433, PETRI_TRANSITIONS=445} [2022-04-18 16:33:48,089 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -27 predicate places. [2022-04-18 16:33:48,090 INFO L478 AbstractCegarLoop]: Abstraction has has 433 places, 445 transitions, 906 flow [2022-04-18 16:33:48,090 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:48,090 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:48,090 INFO L255 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] [2022-04-18 16:33:48,090 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:33:48,091 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:48,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:48,091 INFO L85 PathProgramCache]: Analyzing trace with hash 758741282, now seen corresponding path program 1 times [2022-04-18 16:33:48,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:48,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025970485] [2022-04-18 16:33:48,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:48,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:48,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:48,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:48,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025970485] [2022-04-18 16:33:48,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025970485] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:48,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:48,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:48,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465807546] [2022-04-18 16:33:48,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:48,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:48,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:48,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:48,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:48,121 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 504 [2022-04-18 16:33:48,122 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 445 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:48,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:48,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 504 [2022-04-18 16:33:48,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:48,216 INFO L129 PetriNetUnfolder]: 92/1237 cut-off events. [2022-04-18 16:33:48,216 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-04-18 16:33:48,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 1237 events. 92/1237 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7187 event pairs, 16 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 1266. Up to 60 conditions per place. [2022-04-18 16:33:48,225 INFO L132 encePairwiseOnDemand]: 498/504 looper letters, 15 selfloop transitions, 2 changer transitions 0/444 dead transitions. [2022-04-18 16:33:48,225 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 444 transitions, 939 flow [2022-04-18 16:33:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:48,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:48,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1440 transitions. [2022-04-18 16:33:48,228 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2022-04-18 16:33:48,228 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1440 transitions. [2022-04-18 16:33:48,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1440 transitions. [2022-04-18 16:33:48,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:48,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1440 transitions. [2022-04-18 16:33:48,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.0) internal successors, (1440), 3 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:48,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:48,233 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:48,233 INFO L186 Difference]: Start difference. First operand has 433 places, 445 transitions, 906 flow. Second operand 3 states and 1440 transitions. [2022-04-18 16:33:48,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 444 transitions, 939 flow [2022-04-18 16:33:48,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 444 transitions, 939 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:33:48,239 INFO L242 Difference]: Finished difference. Result has 432 places, 443 transitions, 912 flow [2022-04-18 16:33:48,239 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=912, PETRI_PLACES=432, PETRI_TRANSITIONS=443} [2022-04-18 16:33:48,240 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -28 predicate places. [2022-04-18 16:33:48,240 INFO L478 AbstractCegarLoop]: Abstraction has has 432 places, 443 transitions, 912 flow [2022-04-18 16:33:48,241 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:48,241 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:48,241 INFO L255 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, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:48,241 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:33:48,241 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:48,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:48,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1326505051, now seen corresponding path program 1 times [2022-04-18 16:33:48,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:48,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832335335] [2022-04-18 16:33:48,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:48,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:48,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:48,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:48,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:48,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832335335] [2022-04-18 16:33:48,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832335335] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:48,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:48,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:48,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546350525] [2022-04-18 16:33:48,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:48,309 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:48,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:48,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:48,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:48,312 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 504 [2022-04-18 16:33:48,313 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 443 transitions, 912 flow. Second operand has 6 states, 6 states have (on average 411.8333333333333) internal successors, (2471), 6 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:48,313 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:48,314 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 504 [2022-04-18 16:33:48,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:50,937 INFO L129 PetriNetUnfolder]: 9280/23239 cut-off events. [2022-04-18 16:33:50,938 INFO L130 PetriNetUnfolder]: For 34/341 co-relation queries the response was YES. [2022-04-18 16:33:51,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36874 conditions, 23239 events. 9280/23239 cut-off events. For 34/341 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 226266 event pairs, 3000 based on Foata normal form. 27/19806 useless extension candidates. Maximal degree in co-relation 36816. Up to 4337 conditions per place. [2022-04-18 16:33:51,111 INFO L132 encePairwiseOnDemand]: 499/504 looper letters, 265 selfloop transitions, 4 changer transitions 0/634 dead transitions. [2022-04-18 16:33:51,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 634 transitions, 1832 flow [2022-04-18 16:33:51,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:33:51,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:33:51,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2730 transitions. [2022-04-18 16:33:51,116 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9027777777777778 [2022-04-18 16:33:51,116 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2730 transitions. [2022-04-18 16:33:51,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2730 transitions. [2022-04-18 16:33:51,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:51,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2730 transitions. [2022-04-18 16:33:51,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 455.0) internal successors, (2730), 6 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,126 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,126 INFO L186 Difference]: Start difference. First operand has 432 places, 443 transitions, 912 flow. Second operand 6 states and 2730 transitions. [2022-04-18 16:33:51,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 634 transitions, 1832 flow [2022-04-18 16:33:51,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 634 transitions, 1832 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:33:51,133 INFO L242 Difference]: Finished difference. Result has 436 places, 442 transitions, 918 flow [2022-04-18 16:33:51,134 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=910, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=918, PETRI_PLACES=436, PETRI_TRANSITIONS=442} [2022-04-18 16:33:51,135 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -24 predicate places. [2022-04-18 16:33:51,135 INFO L478 AbstractCegarLoop]: Abstraction has has 436 places, 442 transitions, 918 flow [2022-04-18 16:33:51,136 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 411.8333333333333) internal successors, (2471), 6 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,136 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:51,136 INFO L255 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, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:51,136 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:33:51,136 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:51,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:51,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1915727878, now seen corresponding path program 1 times [2022-04-18 16:33:51,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:51,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602195583] [2022-04-18 16:33:51,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:51,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:51,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:51,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:51,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602195583] [2022-04-18 16:33:51,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602195583] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:51,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:51,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 16:33:51,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586555477] [2022-04-18 16:33:51,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:51,181 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:51,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:51,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:51,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:51,183 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 504 [2022-04-18 16:33:51,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 442 transitions, 918 flow. Second operand has 3 states, 3 states have (on average 481.6666666666667) internal successors, (1445), 3 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:51,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 504 [2022-04-18 16:33:51,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:51,366 INFO L129 PetriNetUnfolder]: 54/880 cut-off events. [2022-04-18 16:33:51,367 INFO L130 PetriNetUnfolder]: For 2/9 co-relation queries the response was YES. [2022-04-18 16:33:51,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 951 conditions, 880 events. 54/880 cut-off events. For 2/9 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4219 event pairs, 6 based on Foata normal form. 1/765 useless extension candidates. Maximal degree in co-relation 894. Up to 24 conditions per place. [2022-04-18 16:33:51,370 INFO L132 encePairwiseOnDemand]: 500/504 looper letters, 11 selfloop transitions, 3 changer transitions 0/444 dead transitions. [2022-04-18 16:33:51,370 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 444 transitions, 951 flow [2022-04-18 16:33:51,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:51,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:51,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-04-18 16:33:51,373 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9623015873015873 [2022-04-18 16:33:51,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-04-18 16:33:51,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-04-18 16:33:51,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:51,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-04-18 16:33:51,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,382 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,382 INFO L186 Difference]: Start difference. First operand has 436 places, 442 transitions, 918 flow. Second operand 3 states and 1455 transitions. [2022-04-18 16:33:51,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 444 transitions, 951 flow [2022-04-18 16:33:51,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 444 transitions, 944 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:33:51,388 INFO L242 Difference]: Finished difference. Result has 436 places, 443 transitions, 929 flow [2022-04-18 16:33:51,389 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=929, PETRI_PLACES=436, PETRI_TRANSITIONS=443} [2022-04-18 16:33:51,390 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -24 predicate places. [2022-04-18 16:33:51,390 INFO L478 AbstractCegarLoop]: Abstraction has has 436 places, 443 transitions, 929 flow [2022-04-18 16:33:51,390 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.6666666666667) internal successors, (1445), 3 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,390 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:51,390 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:51,391 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:33:51,391 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:51,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:51,391 INFO L85 PathProgramCache]: Analyzing trace with hash -2073915675, now seen corresponding path program 1 times [2022-04-18 16:33:51,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:51,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499744222] [2022-04-18 16:33:51,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:51,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:51,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:51,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:51,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499744222] [2022-04-18 16:33:51,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499744222] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:51,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:51,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:51,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455991319] [2022-04-18 16:33:51,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:51,416 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:51,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:51,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:51,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:51,418 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 504 [2022-04-18 16:33:51,419 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 443 transitions, 929 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,419 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:51,419 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 504 [2022-04-18 16:33:51,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:51,516 INFO L129 PetriNetUnfolder]: 68/1058 cut-off events. [2022-04-18 16:33:51,516 INFO L130 PetriNetUnfolder]: For 5/9 co-relation queries the response was YES. [2022-04-18 16:33:51,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1152 conditions, 1058 events. 68/1058 cut-off events. For 5/9 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5045 event pairs, 7 based on Foata normal form. 1/920 useless extension candidates. Maximal degree in co-relation 1094. Up to 39 conditions per place. [2022-04-18 16:33:51,524 INFO L132 encePairwiseOnDemand]: 501/504 looper letters, 22 selfloop transitions, 2 changer transitions 0/443 dead transitions. [2022-04-18 16:33:51,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 443 transitions, 978 flow [2022-04-18 16:33:51,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:51,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:51,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1429 transitions. [2022-04-18 16:33:51,526 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9451058201058201 [2022-04-18 16:33:51,527 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1429 transitions. [2022-04-18 16:33:51,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1429 transitions. [2022-04-18 16:33:51,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:51,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1429 transitions. [2022-04-18 16:33:51,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 476.3333333333333) internal successors, (1429), 3 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,532 INFO L186 Difference]: Start difference. First operand has 436 places, 443 transitions, 929 flow. Second operand 3 states and 1429 transitions. [2022-04-18 16:33:51,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 443 transitions, 978 flow [2022-04-18 16:33:51,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 443 transitions, 972 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:51,537 INFO L242 Difference]: Finished difference. Result has 435 places, 442 transitions, 925 flow [2022-04-18 16:33:51,538 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=925, PETRI_PLACES=435, PETRI_TRANSITIONS=442} [2022-04-18 16:33:51,538 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -25 predicate places. [2022-04-18 16:33:51,539 INFO L478 AbstractCegarLoop]: Abstraction has has 435 places, 442 transitions, 925 flow [2022-04-18 16:33:51,539 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,539 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:51,539 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:51,540 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:33:51,540 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:51,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:51,540 INFO L85 PathProgramCache]: Analyzing trace with hash 795899627, now seen corresponding path program 1 times [2022-04-18 16:33:51,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:51,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629317581] [2022-04-18 16:33:51,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:51,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:51,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:51,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:51,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629317581] [2022-04-18 16:33:51,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629317581] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:51,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:51,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:51,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761165527] [2022-04-18 16:33:51,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:51,579 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:51,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:51,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:51,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:51,581 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 504 [2022-04-18 16:33:51,582 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 442 transitions, 925 flow. Second operand has 3 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,582 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:51,582 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 504 [2022-04-18 16:33:51,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:51,726 INFO L129 PetriNetUnfolder]: 117/1535 cut-off events. [2022-04-18 16:33:51,726 INFO L130 PetriNetUnfolder]: For 16/17 co-relation queries the response was YES. [2022-04-18 16:33:51,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1680 conditions, 1535 events. 117/1535 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 9266 event pairs, 12 based on Foata normal form. 0/1326 useless extension candidates. Maximal degree in co-relation 1668. Up to 89 conditions per place. [2022-04-18 16:33:51,739 INFO L132 encePairwiseOnDemand]: 498/504 looper letters, 17 selfloop transitions, 2 changer transitions 0/443 dead transitions. [2022-04-18 16:33:51,739 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 443 transitions, 968 flow [2022-04-18 16:33:51,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:51,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:51,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-04-18 16:33:51,742 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9537037037037037 [2022-04-18 16:33:51,742 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-04-18 16:33:51,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-04-18 16:33:51,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:51,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-04-18 16:33:51,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,747 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,748 INFO L186 Difference]: Start difference. First operand has 435 places, 442 transitions, 925 flow. Second operand 3 states and 1442 transitions. [2022-04-18 16:33:51,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 443 transitions, 968 flow [2022-04-18 16:33:51,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 443 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:51,754 INFO L242 Difference]: Finished difference. Result has 432 places, 440 transitions, 927 flow [2022-04-18 16:33:51,755 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=927, PETRI_PLACES=432, PETRI_TRANSITIONS=440} [2022-04-18 16:33:51,756 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -28 predicate places. [2022-04-18 16:33:51,756 INFO L478 AbstractCegarLoop]: Abstraction has has 432 places, 440 transitions, 927 flow [2022-04-18 16:33:51,756 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,756 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:51,757 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:51,757 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:33:51,757 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:51,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:51,757 INFO L85 PathProgramCache]: Analyzing trace with hash -245243240, now seen corresponding path program 1 times [2022-04-18 16:33:51,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:51,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272251553] [2022-04-18 16:33:51,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:51,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:51,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:51,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:51,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272251553] [2022-04-18 16:33:51,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272251553] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:51,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:51,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 16:33:51,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33287679] [2022-04-18 16:33:51,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:51,792 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:51,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:51,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:51,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:51,794 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 504 [2022-04-18 16:33:51,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 440 transitions, 927 flow. Second operand has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:51,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 504 [2022-04-18 16:33:51,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:51,893 INFO L129 PetriNetUnfolder]: 91/1097 cut-off events. [2022-04-18 16:33:51,894 INFO L130 PetriNetUnfolder]: For 36/38 co-relation queries the response was YES. [2022-04-18 16:33:51,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1270 conditions, 1097 events. 91/1097 cut-off events. For 36/38 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5909 event pairs, 12 based on Foata normal form. 0/957 useless extension candidates. Maximal degree in co-relation 1212. Up to 86 conditions per place. [2022-04-18 16:33:51,903 INFO L132 encePairwiseOnDemand]: 500/504 looper letters, 11 selfloop transitions, 3 changer transitions 0/442 dead transitions. [2022-04-18 16:33:51,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 442 transitions, 960 flow [2022-04-18 16:33:51,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:51,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:51,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-04-18 16:33:51,906 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9623015873015873 [2022-04-18 16:33:51,906 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-04-18 16:33:51,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-04-18 16:33:51,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:51,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-04-18 16:33:51,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,911 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,912 INFO L186 Difference]: Start difference. First operand has 432 places, 440 transitions, 927 flow. Second operand 3 states and 1455 transitions. [2022-04-18 16:33:51,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 442 transitions, 960 flow [2022-04-18 16:33:51,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 442 transitions, 960 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:33:51,919 INFO L242 Difference]: Finished difference. Result has 436 places, 441 transitions, 945 flow [2022-04-18 16:33:51,920 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=945, PETRI_PLACES=436, PETRI_TRANSITIONS=441} [2022-04-18 16:33:51,921 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -24 predicate places. [2022-04-18 16:33:51,921 INFO L478 AbstractCegarLoop]: Abstraction has has 436 places, 441 transitions, 945 flow [2022-04-18 16:33:51,922 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,922 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:51,922 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:51,922 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-18 16:33:51,922 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:51,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:51,923 INFO L85 PathProgramCache]: Analyzing trace with hash -712542405, now seen corresponding path program 1 times [2022-04-18 16:33:51,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:51,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799797167] [2022-04-18 16:33:51,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:51,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:51,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:51,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:51,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799797167] [2022-04-18 16:33:51,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799797167] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:51,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:51,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:51,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395212264] [2022-04-18 16:33:51,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:51,957 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:51,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:51,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:51,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:51,959 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 504 [2022-04-18 16:33:51,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 441 transitions, 945 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:51,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:51,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 504 [2022-04-18 16:33:51,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:52,093 INFO L129 PetriNetUnfolder]: 97/1449 cut-off events. [2022-04-18 16:33:52,093 INFO L130 PetriNetUnfolder]: For 32/40 co-relation queries the response was YES. [2022-04-18 16:33:52,101 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1693 conditions, 1449 events. 97/1449 cut-off events. For 32/40 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 8333 event pairs, 7 based on Foata normal form. 1/1293 useless extension candidates. Maximal degree in co-relation 1633. Up to 55 conditions per place. [2022-04-18 16:33:52,105 INFO L132 encePairwiseOnDemand]: 501/504 looper letters, 21 selfloop transitions, 2 changer transitions 0/441 dead transitions. [2022-04-18 16:33:52,105 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 441 transitions, 992 flow [2022-04-18 16:33:52,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:52,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:52,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1428 transitions. [2022-04-18 16:33:52,108 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2022-04-18 16:33:52,108 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1428 transitions. [2022-04-18 16:33:52,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1428 transitions. [2022-04-18 16:33:52,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:52,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1428 transitions. [2022-04-18 16:33:52,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 476.0) internal successors, (1428), 3 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,113 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,113 INFO L186 Difference]: Start difference. First operand has 436 places, 441 transitions, 945 flow. Second operand 3 states and 1428 transitions. [2022-04-18 16:33:52,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 441 transitions, 992 flow [2022-04-18 16:33:52,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 441 transitions, 986 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:52,120 INFO L242 Difference]: Finished difference. Result has 435 places, 440 transitions, 941 flow [2022-04-18 16:33:52,121 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=937, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=941, PETRI_PLACES=435, PETRI_TRANSITIONS=440} [2022-04-18 16:33:52,121 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -25 predicate places. [2022-04-18 16:33:52,121 INFO L478 AbstractCegarLoop]: Abstraction has has 435 places, 440 transitions, 941 flow [2022-04-18 16:33:52,122 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,122 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:52,122 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:52,122 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-18 16:33:52,122 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:52,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:52,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1828499328, now seen corresponding path program 1 times [2022-04-18 16:33:52,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:52,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548457804] [2022-04-18 16:33:52,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:52,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:52,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:52,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:52,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548457804] [2022-04-18 16:33:52,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548457804] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:52,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:52,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:52,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239572835] [2022-04-18 16:33:52,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:52,156 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:52,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:52,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:52,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:52,157 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 504 [2022-04-18 16:33:52,158 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 440 transitions, 941 flow. Second operand has 3 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:52,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 504 [2022-04-18 16:33:52,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:52,260 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1377] thread2EXIT-->L100-7: Formula: (and (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem40#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[][325], [Black: 542#(not |thread1Thread1of1ForFork1_#t~short2|), 565#true, Black: 550#true, 530#(= |#race~count2~0| 0), 561#true, 517#(= |#race~n2~0| 0), Black: 523#true, Black: 557#(not |thread2Thread1of1ForFork0_#t~short13|), 525#(= |#race~count1~0| 0), Black: 528#true, 538#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 552#(= |#race~get1~0| 0), 412#L100-7true, 502#(= |#race~n1~0| 0)]) [2022-04-18 16:33:52,260 INFO L384 tUnfolder$Statistics]: this new event has 206 ancestors and is not cut-off event [2022-04-18 16:33:52,261 INFO L387 tUnfolder$Statistics]: existing Event has 237 ancestors and is not cut-off event [2022-04-18 16:33:52,261 INFO L387 tUnfolder$Statistics]: existing Event has 206 ancestors and is not cut-off event [2022-04-18 16:33:52,261 INFO L387 tUnfolder$Statistics]: existing Event has 210 ancestors and is not cut-off event [2022-04-18 16:33:52,266 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1305] L77-6-->L77-7: Formula: (= |v_thread2Thread1of1ForFork0_#t~nondet20_3| |v_#race~res2~0_1|) InVars {thread2Thread1of1ForFork0_#t~nondet20=|v_thread2Thread1of1ForFork0_#t~nondet20_3|} OutVars{thread2Thread1of1ForFork0_#t~nondet20=|v_thread2Thread1of1ForFork0_#t~nondet20_3|, #race~res2~0=|v_#race~res2~0_1|} AuxVars[] AssignedVars[#race~res2~0][280], [Black: 542#(not |thread1Thread1of1ForFork1_#t~short2|), 565#true, Black: 550#true, 530#(= |#race~count2~0| 0), 561#true, 517#(= |#race~n2~0| 0), Black: 523#true, Black: 557#(not |thread2Thread1of1ForFork0_#t~short13|), 525#(= |#race~count1~0| 0), Black: 528#true, 538#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 199#L99-7true, 552#(= |#race~get1~0| 0), 184#L77-7true, 502#(= |#race~n1~0| 0)]) [2022-04-18 16:33:52,267 INFO L384 tUnfolder$Statistics]: this new event has 221 ancestors and is cut-off event [2022-04-18 16:33:52,267 INFO L387 tUnfolder$Statistics]: existing Event has 203 ancestors and is cut-off event [2022-04-18 16:33:52,267 INFO L387 tUnfolder$Statistics]: existing Event has 234 ancestors and is cut-off event [2022-04-18 16:33:52,267 INFO L387 tUnfolder$Statistics]: existing Event has 203 ancestors and is cut-off event [2022-04-18 16:33:52,268 INFO L129 PetriNetUnfolder]: 86/1029 cut-off events. [2022-04-18 16:33:52,269 INFO L130 PetriNetUnfolder]: For 32/39 co-relation queries the response was YES. [2022-04-18 16:33:52,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1236 conditions, 1029 events. 86/1029 cut-off events. For 32/39 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5457 event pairs, 11 based on Foata normal form. 1/912 useless extension candidates. Maximal degree in co-relation 1218. Up to 103 conditions per place. [2022-04-18 16:33:52,279 INFO L132 encePairwiseOnDemand]: 501/504 looper letters, 21 selfloop transitions, 2 changer transitions 0/440 dead transitions. [2022-04-18 16:33:52,279 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 440 transitions, 988 flow [2022-04-18 16:33:52,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:52,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:52,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1428 transitions. [2022-04-18 16:33:52,282 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2022-04-18 16:33:52,282 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1428 transitions. [2022-04-18 16:33:52,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1428 transitions. [2022-04-18 16:33:52,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:52,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1428 transitions. [2022-04-18 16:33:52,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 476.0) internal successors, (1428), 3 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,287 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,287 INFO L186 Difference]: Start difference. First operand has 435 places, 440 transitions, 941 flow. Second operand 3 states and 1428 transitions. [2022-04-18 16:33:52,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 440 transitions, 988 flow [2022-04-18 16:33:52,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 440 transitions, 984 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:52,294 INFO L242 Difference]: Finished difference. Result has 434 places, 439 transitions, 939 flow [2022-04-18 16:33:52,294 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=939, PETRI_PLACES=434, PETRI_TRANSITIONS=439} [2022-04-18 16:33:52,295 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -26 predicate places. [2022-04-18 16:33:52,295 INFO L478 AbstractCegarLoop]: Abstraction has has 434 places, 439 transitions, 939 flow [2022-04-18 16:33:52,296 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,296 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:52,296 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:52,296 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-18 16:33:52,296 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:52,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:52,296 INFO L85 PathProgramCache]: Analyzing trace with hash -449178284, now seen corresponding path program 1 times [2022-04-18 16:33:52,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:52,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440273191] [2022-04-18 16:33:52,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:52,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:52,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:52,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:52,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440273191] [2022-04-18 16:33:52,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440273191] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:52,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:52,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-18 16:33:52,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003751129] [2022-04-18 16:33:52,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:52,392 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-18 16:33:52,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:52,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-18 16:33:52,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-18 16:33:52,394 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 504 [2022-04-18 16:33:52,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 439 transitions, 939 flow. Second operand has 8 states, 8 states have (on average 411.875) internal successors, (3295), 8 states have internal predecessors, (3295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:52,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 504 [2022-04-18 16:33:52,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:52,851 INFO L129 PetriNetUnfolder]: 412/2870 cut-off events. [2022-04-18 16:33:52,852 INFO L130 PetriNetUnfolder]: For 29/65 co-relation queries the response was YES. [2022-04-18 16:33:52,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3837 conditions, 2870 events. 412/2870 cut-off events. For 29/65 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 23314 event pairs, 143 based on Foata normal form. 10/2505 useless extension candidates. Maximal degree in co-relation 3781. Up to 477 conditions per place. [2022-04-18 16:33:52,872 INFO L132 encePairwiseOnDemand]: 489/504 looper letters, 116 selfloop transitions, 17 changer transitions 0/489 dead transitions. [2022-04-18 16:33:52,872 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 489 transitions, 1320 flow [2022-04-18 16:33:52,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-04-18 16:33:52,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-04-18 16:33:52,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 5030 transitions. [2022-04-18 16:33:52,879 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8316798941798942 [2022-04-18 16:33:52,880 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 5030 transitions. [2022-04-18 16:33:52,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 5030 transitions. [2022-04-18 16:33:52,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:52,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 5030 transitions. [2022-04-18 16:33:52,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 419.1666666666667) internal successors, (5030), 12 states have internal predecessors, (5030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 504.0) internal successors, (6552), 13 states have internal predecessors, (6552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,897 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 504.0) internal successors, (6552), 13 states have internal predecessors, (6552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,897 INFO L186 Difference]: Start difference. First operand has 434 places, 439 transitions, 939 flow. Second operand 12 states and 5030 transitions. [2022-04-18 16:33:52,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 489 transitions, 1320 flow [2022-04-18 16:33:52,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 489 transitions, 1316 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:52,904 INFO L242 Difference]: Finished difference. Result has 448 places, 447 transitions, 1020 flow [2022-04-18 16:33:52,904 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1020, PETRI_PLACES=448, PETRI_TRANSITIONS=447} [2022-04-18 16:33:52,905 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -12 predicate places. [2022-04-18 16:33:52,905 INFO L478 AbstractCegarLoop]: Abstraction has has 448 places, 447 transitions, 1020 flow [2022-04-18 16:33:52,906 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 411.875) internal successors, (3295), 8 states have internal predecessors, (3295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,906 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:52,906 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:52,906 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-18 16:33:52,906 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:52,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:52,906 INFO L85 PathProgramCache]: Analyzing trace with hash 417811686, now seen corresponding path program 1 times [2022-04-18 16:33:52,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:52,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370042505] [2022-04-18 16:33:52,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:52,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:52,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:52,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:52,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370042505] [2022-04-18 16:33:52,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370042505] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:52,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:52,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:52,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168228657] [2022-04-18 16:33:52,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:52,930 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:52,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:52,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:52,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:52,931 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 504 [2022-04-18 16:33:52,932 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 447 transitions, 1020 flow. Second operand has 3 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:52,932 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:52,932 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 504 [2022-04-18 16:33:52,932 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:53,193 INFO L129 PetriNetUnfolder]: 188/2556 cut-off events. [2022-04-18 16:33:53,193 INFO L130 PetriNetUnfolder]: For 65/68 co-relation queries the response was YES. [2022-04-18 16:33:53,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2992 conditions, 2556 events. 188/2556 cut-off events. For 65/68 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 18700 event pairs, 13 based on Foata normal form. 0/2285 useless extension candidates. Maximal degree in co-relation 2924. Up to 144 conditions per place. [2022-04-18 16:33:53,214 INFO L132 encePairwiseOnDemand]: 498/504 looper letters, 17 selfloop transitions, 2 changer transitions 0/448 dead transitions. [2022-04-18 16:33:53,215 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 448 transitions, 1063 flow [2022-04-18 16:33:53,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:53,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:53,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-04-18 16:33:53,217 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9537037037037037 [2022-04-18 16:33:53,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-04-18 16:33:53,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-04-18 16:33:53,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:53,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-04-18 16:33:53,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,222 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,222 INFO L186 Difference]: Start difference. First operand has 448 places, 447 transitions, 1020 flow. Second operand 3 states and 1442 transitions. [2022-04-18 16:33:53,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 448 transitions, 1063 flow [2022-04-18 16:33:53,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 448 transitions, 1061 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:33:53,230 INFO L242 Difference]: Finished difference. Result has 446 places, 445 transitions, 1024 flow [2022-04-18 16:33:53,231 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1010, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1024, PETRI_PLACES=446, PETRI_TRANSITIONS=445} [2022-04-18 16:33:53,232 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -14 predicate places. [2022-04-18 16:33:53,233 INFO L478 AbstractCegarLoop]: Abstraction has has 446 places, 445 transitions, 1024 flow [2022-04-18 16:33:53,233 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,233 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:53,233 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:53,233 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-18 16:33:53,234 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:53,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:53,234 INFO L85 PathProgramCache]: Analyzing trace with hash -610947594, now seen corresponding path program 1 times [2022-04-18 16:33:53,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:53,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828245266] [2022-04-18 16:33:53,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:53,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:53,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:53,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:53,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828245266] [2022-04-18 16:33:53,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828245266] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:53,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:53,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:33:53,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764281909] [2022-04-18 16:33:53,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:53,256 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:53,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:53,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:53,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:53,259 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 504 [2022-04-18 16:33:53,260 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 445 transitions, 1024 flow. Second operand has 3 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,260 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:53,260 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 504 [2022-04-18 16:33:53,260 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:53,483 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1377] thread2EXIT-->L100-7: Formula: (and (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem40#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[][307], [Black: 542#(not |thread1Thread1of1ForFork1_#t~short2|), 569#true, Black: 550#true, 530#(= |#race~count2~0| 0), Black: 586#(and (<= ~n1~0 0) (not |thread1Thread1of1ForFork1_#t~short2|) (= thread1Thread1of1ForFork1_~i~0 0)), 595#(= |#race~get2~0| 0), Black: 574#(<= ~n1~0 0), Black: 523#true, 517#(= |#race~n2~0| 0), Black: 575#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 557#(not |thread2Thread1of1ForFork0_#t~short13|), Black: 580#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), 525#(= |#race~count1~0| 0), Black: 528#true, Black: 593#true, 538#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 598#true, 552#(= |#race~get1~0| 0), 412#L100-7true, 502#(= |#race~n1~0| 0)]) [2022-04-18 16:33:53,483 INFO L384 tUnfolder$Statistics]: this new event has 251 ancestors and is cut-off event [2022-04-18 16:33:53,483 INFO L387 tUnfolder$Statistics]: existing Event has 224 ancestors and is cut-off event [2022-04-18 16:33:53,483 INFO L387 tUnfolder$Statistics]: existing Event has 220 ancestors and is cut-off event [2022-04-18 16:33:53,483 INFO L387 tUnfolder$Statistics]: existing Event has 220 ancestors and is cut-off event [2022-04-18 16:33:53,485 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1302] L77-5-->L77-6: Formula: true InVars {} OutVars{thread2Thread1of1ForFork0_#t~nondet20=|v_thread2Thread1of1ForFork0_#t~nondet20_1|} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_#t~nondet20][264], [Black: 542#(not |thread1Thread1of1ForFork1_#t~short2|), 569#true, Black: 550#true, 530#(= |#race~count2~0| 0), Black: 586#(and (<= ~n1~0 0) (not |thread1Thread1of1ForFork1_#t~short2|) (= thread1Thread1of1ForFork1_~i~0 0)), 595#(= |#race~get2~0| 0), 419#L77-6true, Black: 574#(<= ~n1~0 0), Black: 523#true, 517#(= |#race~n2~0| 0), Black: 575#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 580#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), Black: 557#(not |thread2Thread1of1ForFork0_#t~short13|), 525#(= |#race~count1~0| 0), Black: 528#true, Black: 593#true, 538#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 598#true, 199#L99-7true, 552#(= |#race~get1~0| 0), 502#(= |#race~n1~0| 0)]) [2022-04-18 16:33:53,485 INFO L384 tUnfolder$Statistics]: this new event has 234 ancestors and is cut-off event [2022-04-18 16:33:53,485 INFO L387 tUnfolder$Statistics]: existing Event has 247 ancestors and is cut-off event [2022-04-18 16:33:53,485 INFO L387 tUnfolder$Statistics]: existing Event has 216 ancestors and is cut-off event [2022-04-18 16:33:53,485 INFO L387 tUnfolder$Statistics]: existing Event has 216 ancestors and is cut-off event [2022-04-18 16:33:53,488 INFO L129 PetriNetUnfolder]: 165/2015 cut-off events. [2022-04-18 16:33:53,488 INFO L130 PetriNetUnfolder]: For 85/102 co-relation queries the response was YES. [2022-04-18 16:33:53,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2494 conditions, 2015 events. 165/2015 cut-off events. For 85/102 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 14027 event pairs, 23 based on Foata normal form. 2/1807 useless extension candidates. Maximal degree in co-relation 2425. Up to 190 conditions per place. [2022-04-18 16:33:53,506 INFO L132 encePairwiseOnDemand]: 501/504 looper letters, 20 selfloop transitions, 2 changer transitions 0/445 dead transitions. [2022-04-18 16:33:53,506 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 445 transitions, 1069 flow [2022-04-18 16:33:53,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:53,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:53,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1427 transitions. [2022-04-18 16:33:53,526 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9437830687830688 [2022-04-18 16:33:53,526 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1427 transitions. [2022-04-18 16:33:53,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1427 transitions. [2022-04-18 16:33:53,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:53,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1427 transitions. [2022-04-18 16:33:53,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,530 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,530 INFO L186 Difference]: Start difference. First operand has 446 places, 445 transitions, 1024 flow. Second operand 3 states and 1427 transitions. [2022-04-18 16:33:53,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 445 transitions, 1069 flow [2022-04-18 16:33:53,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 445 transitions, 1069 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-04-18 16:33:53,537 INFO L242 Difference]: Finished difference. Result has 447 places, 444 transitions, 1026 flow [2022-04-18 16:33:53,537 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1022, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1026, PETRI_PLACES=447, PETRI_TRANSITIONS=444} [2022-04-18 16:33:53,538 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -13 predicate places. [2022-04-18 16:33:53,538 INFO L478 AbstractCegarLoop]: Abstraction has has 447 places, 444 transitions, 1026 flow [2022-04-18 16:33:53,538 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,538 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:53,539 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:53,539 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-18 16:33:53,539 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:53,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:53,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1600808849, now seen corresponding path program 1 times [2022-04-18 16:33:53,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:53,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643832130] [2022-04-18 16:33:53,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:53,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:53,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:53,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:53,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643832130] [2022-04-18 16:33:53,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643832130] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:53,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:53,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-18 16:33:53,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235096541] [2022-04-18 16:33:53,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:53,604 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-18 16:33:53,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:53,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-18 16:33:53,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-18 16:33:53,607 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 504 [2022-04-18 16:33:53,608 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 444 transitions, 1026 flow. Second operand has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:53,609 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:53,609 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 504 [2022-04-18 16:33:53,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:54,063 INFO L129 PetriNetUnfolder]: 381/2412 cut-off events. [2022-04-18 16:33:54,064 INFO L130 PetriNetUnfolder]: For 256/265 co-relation queries the response was YES. [2022-04-18 16:33:54,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3652 conditions, 2412 events. 381/2412 cut-off events. For 256/265 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 18787 event pairs, 185 based on Foata normal form. 8/2182 useless extension candidates. Maximal degree in co-relation 3580. Up to 642 conditions per place. [2022-04-18 16:33:54,084 INFO L132 encePairwiseOnDemand]: 490/504 looper letters, 117 selfloop transitions, 15 changer transitions 0/488 dead transitions. [2022-04-18 16:33:54,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 488 transitions, 1401 flow [2022-04-18 16:33:54,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-18 16:33:54,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-04-18 16:33:54,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4619 transitions. [2022-04-18 16:33:54,091 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8331529581529582 [2022-04-18 16:33:54,091 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4619 transitions. [2022-04-18 16:33:54,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4619 transitions. [2022-04-18 16:33:54,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:54,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4619 transitions. [2022-04-18 16:33:54,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 419.90909090909093) internal successors, (4619), 11 states have internal predecessors, (4619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 504.0) internal successors, (6048), 12 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,105 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 504.0) internal successors, (6048), 12 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,105 INFO L186 Difference]: Start difference. First operand has 447 places, 444 transitions, 1026 flow. Second operand 11 states and 4619 transitions. [2022-04-18 16:33:54,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 488 transitions, 1401 flow [2022-04-18 16:33:54,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 488 transitions, 1397 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:33:54,113 INFO L242 Difference]: Finished difference. Result has 458 places, 448 transitions, 1085 flow [2022-04-18 16:33:54,114 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1022, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1085, PETRI_PLACES=458, PETRI_TRANSITIONS=448} [2022-04-18 16:33:54,114 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -2 predicate places. [2022-04-18 16:33:54,114 INFO L478 AbstractCegarLoop]: Abstraction has has 458 places, 448 transitions, 1085 flow [2022-04-18 16:33:54,115 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,115 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:54,115 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:54,115 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-18 16:33:54,115 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:54,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:54,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1466617474, now seen corresponding path program 1 times [2022-04-18 16:33:54,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:54,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231600198] [2022-04-18 16:33:54,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:54,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:54,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:54,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 16:33:54,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:54,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231600198] [2022-04-18 16:33:54,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231600198] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:54,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:54,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-18 16:33:54,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837891180] [2022-04-18 16:33:54,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:54,182 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-18 16:33:54,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:54,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-18 16:33:54,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-18 16:33:54,185 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 504 [2022-04-18 16:33:54,187 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 448 transitions, 1085 flow. Second operand has 8 states, 8 states have (on average 413.0) internal successors, (3304), 8 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,187 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:54,187 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 504 [2022-04-18 16:33:54,187 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:54,906 INFO L129 PetriNetUnfolder]: 556/4178 cut-off events. [2022-04-18 16:33:54,906 INFO L130 PetriNetUnfolder]: For 329/378 co-relation queries the response was YES. [2022-04-18 16:33:54,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5925 conditions, 4178 events. 556/4178 cut-off events. For 329/378 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 36834 event pairs, 200 based on Foata normal form. 6/3752 useless extension candidates. Maximal degree in co-relation 5847. Up to 683 conditions per place. [2022-04-18 16:33:54,943 INFO L132 encePairwiseOnDemand]: 492/504 looper letters, 113 selfloop transitions, 15 changer transitions 0/485 dead transitions. [2022-04-18 16:33:54,943 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 485 transitions, 1464 flow [2022-04-18 16:33:54,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-18 16:33:54,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-04-18 16:33:54,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3787 transitions. [2022-04-18 16:33:54,949 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8348765432098766 [2022-04-18 16:33:54,949 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3787 transitions. [2022-04-18 16:33:54,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3787 transitions. [2022-04-18 16:33:54,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:54,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3787 transitions. [2022-04-18 16:33:54,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 420.77777777777777) internal successors, (3787), 9 states have internal predecessors, (3787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 504.0) internal successors, (5040), 10 states have internal predecessors, (5040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,958 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 504.0) internal successors, (5040), 10 states have internal predecessors, (5040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,958 INFO L186 Difference]: Start difference. First operand has 458 places, 448 transitions, 1085 flow. Second operand 9 states and 3787 transitions. [2022-04-18 16:33:54,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 485 transitions, 1464 flow [2022-04-18 16:33:54,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 485 transitions, 1445 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-04-18 16:33:54,968 INFO L242 Difference]: Finished difference. Result has 463 places, 457 transitions, 1178 flow [2022-04-18 16:33:54,968 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1066, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1178, PETRI_PLACES=463, PETRI_TRANSITIONS=457} [2022-04-18 16:33:54,968 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, 3 predicate places. [2022-04-18 16:33:54,968 INFO L478 AbstractCegarLoop]: Abstraction has has 463 places, 457 transitions, 1178 flow [2022-04-18 16:33:54,969 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 413.0) internal successors, (3304), 8 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:54,969 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:54,969 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:54,969 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-18 16:33:54,969 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:54,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:54,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1832753923, now seen corresponding path program 1 times [2022-04-18 16:33:54,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:54,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310355103] [2022-04-18 16:33:54,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:54,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:55,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:55,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:55,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310355103] [2022-04-18 16:33:55,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310355103] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:55,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:55,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 16:33:55,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681477016] [2022-04-18 16:33:55,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:55,001 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:33:55,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:55,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:33:55,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:33:55,003 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 504 [2022-04-18 16:33:55,004 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 457 transitions, 1178 flow. Second operand has 3 states, 3 states have (on average 485.6666666666667) internal successors, (1457), 3 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:55,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:55,004 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 504 [2022-04-18 16:33:55,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:33:55,416 INFO L129 PetriNetUnfolder]: 205/3566 cut-off events. [2022-04-18 16:33:55,416 INFO L130 PetriNetUnfolder]: For 217/224 co-relation queries the response was YES. [2022-04-18 16:33:55,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4312 conditions, 3566 events. 205/3566 cut-off events. For 217/224 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 29064 event pairs, 5 based on Foata normal form. 0/3254 useless extension candidates. Maximal degree in co-relation 4231. Up to 93 conditions per place. [2022-04-18 16:33:55,444 INFO L132 encePairwiseOnDemand]: 501/504 looper letters, 10 selfloop transitions, 2 changer transitions 0/461 dead transitions. [2022-04-18 16:33:55,444 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 461 transitions, 1213 flow [2022-04-18 16:33:55,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:33:55,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:33:55,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1465 transitions. [2022-04-18 16:33:55,447 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.968915343915344 [2022-04-18 16:33:55,447 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1465 transitions. [2022-04-18 16:33:55,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1465 transitions. [2022-04-18 16:33:55,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:33:55,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1465 transitions. [2022-04-18 16:33:55,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 488.3333333333333) internal successors, (1465), 3 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:55,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:55,450 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:55,450 INFO L186 Difference]: Start difference. First operand has 463 places, 457 transitions, 1178 flow. Second operand 3 states and 1465 transitions. [2022-04-18 16:33:55,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 461 transitions, 1213 flow [2022-04-18 16:33:55,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 461 transitions, 1201 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:33:55,459 INFO L242 Difference]: Finished difference. Result has 462 places, 457 transitions, 1174 flow [2022-04-18 16:33:55,459 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1166, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1174, PETRI_PLACES=462, PETRI_TRANSITIONS=457} [2022-04-18 16:33:55,460 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, 2 predicate places. [2022-04-18 16:33:55,460 INFO L478 AbstractCegarLoop]: Abstraction has has 462 places, 457 transitions, 1174 flow [2022-04-18 16:33:55,460 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 485.6666666666667) internal successors, (1457), 3 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:55,460 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:33:55,460 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:33:55,461 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-18 16:33:55,461 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:33:55,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:33:55,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1055017377, now seen corresponding path program 1 times [2022-04-18 16:33:55,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:33:55,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898408221] [2022-04-18 16:33:55,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:33:55,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:33:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:33:55,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:33:55,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:33:55,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898408221] [2022-04-18 16:33:55,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898408221] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:33:55,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:33:55,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:33:55,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208521801] [2022-04-18 16:33:55,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:33:55,524 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:33:55,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:33:55,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:33:55,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:33:55,526 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 504 [2022-04-18 16:33:55,528 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 457 transitions, 1174 flow. Second operand has 6 states, 6 states have (on average 412.8333333333333) internal successors, (2477), 6 states have internal predecessors, (2477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:33:55,528 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:33:55,528 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 504 [2022-04-18 16:33:55,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:00,287 INFO L129 PetriNetUnfolder]: 9725/32229 cut-off events. [2022-04-18 16:34:00,287 INFO L130 PetriNetUnfolder]: For 1185/1249 co-relation queries the response was YES. [2022-04-18 16:34:00,634 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51158 conditions, 32229 events. 9725/32229 cut-off events. For 1185/1249 co-relation queries the response was YES. Maximal size of possible extension queue 578. Compared 357451 event pairs, 7878 based on Foata normal form. 12/29304 useless extension candidates. Maximal degree in co-relation 51076. Up to 13310 conditions per place. [2022-04-18 16:34:00,754 INFO L132 encePairwiseOnDemand]: 499/504 looper letters, 168 selfloop transitions, 4 changer transitions 0/552 dead transitions. [2022-04-18 16:34:00,755 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 552 transitions, 1708 flow [2022-04-18 16:34:00,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:34:00,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:34:00,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2633 transitions. [2022-04-18 16:34:00,757 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8707010582010583 [2022-04-18 16:34:00,757 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2633 transitions. [2022-04-18 16:34:00,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2633 transitions. [2022-04-18 16:34:00,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:00,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2633 transitions. [2022-04-18 16:34:00,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 438.8333333333333) internal successors, (2633), 6 states have internal predecessors, (2633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:00,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:00,763 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:00,763 INFO L186 Difference]: Start difference. First operand has 462 places, 457 transitions, 1174 flow. Second operand 6 states and 2633 transitions. [2022-04-18 16:34:00,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 552 transitions, 1708 flow [2022-04-18 16:34:00,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 552 transitions, 1704 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:00,797 INFO L242 Difference]: Finished difference. Result has 464 places, 456 transitions, 1176 flow [2022-04-18 16:34:00,798 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1168, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1176, PETRI_PLACES=464, PETRI_TRANSITIONS=456} [2022-04-18 16:34:00,798 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, 4 predicate places. [2022-04-18 16:34:00,798 INFO L478 AbstractCegarLoop]: Abstraction has has 464 places, 456 transitions, 1176 flow [2022-04-18 16:34:00,799 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 412.8333333333333) internal successors, (2477), 6 states have internal predecessors, (2477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:00,799 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:00,799 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:00,799 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-18 16:34:00,799 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:34:00,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:00,800 INFO L85 PathProgramCache]: Analyzing trace with hash 267480345, now seen corresponding path program 1 times [2022-04-18 16:34:00,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:00,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044677007] [2022-04-18 16:34:00,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:00,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:00,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:00,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 16:34:00,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:00,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044677007] [2022-04-18 16:34:00,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044677007] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:00,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:00,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-18 16:34:00,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364269836] [2022-04-18 16:34:00,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:00,862 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-18 16:34:00,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:00,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-18 16:34:00,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-18 16:34:00,865 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 504 [2022-04-18 16:34:00,866 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 456 transitions, 1176 flow. Second operand has 8 states, 8 states have (on average 413.125) internal successors, (3305), 8 states have internal predecessors, (3305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:00,866 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:00,867 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 504 [2022-04-18 16:34:00,867 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:01,497 INFO L129 PetriNetUnfolder]: 635/3859 cut-off events. [2022-04-18 16:34:01,498 INFO L130 PetriNetUnfolder]: For 590/689 co-relation queries the response was YES. [2022-04-18 16:34:01,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5857 conditions, 3859 events. 635/3859 cut-off events. For 590/689 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 34750 event pairs, 274 based on Foata normal form. 19/3406 useless extension candidates. Maximal degree in co-relation 5775. Up to 895 conditions per place. [2022-04-18 16:34:01,535 INFO L132 encePairwiseOnDemand]: 491/504 looper letters, 108 selfloop transitions, 18 changer transitions 0/488 dead transitions. [2022-04-18 16:34:01,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 488 transitions, 1538 flow [2022-04-18 16:34:01,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-18 16:34:01,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-04-18 16:34:01,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4196 transitions. [2022-04-18 16:34:01,539 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8325396825396826 [2022-04-18 16:34:01,539 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4196 transitions. [2022-04-18 16:34:01,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4196 transitions. [2022-04-18 16:34:01,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:01,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4196 transitions. [2022-04-18 16:34:01,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 419.6) internal successors, (4196), 10 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:01,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 504.0) internal successors, (5544), 11 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:01,549 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 504.0) internal successors, (5544), 11 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:01,549 INFO L186 Difference]: Start difference. First operand has 464 places, 456 transitions, 1176 flow. Second operand 10 states and 4196 transitions. [2022-04-18 16:34:01,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 488 transitions, 1538 flow [2022-04-18 16:34:01,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 488 transitions, 1531 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:34:01,560 INFO L242 Difference]: Finished difference. Result has 473 places, 463 transitions, 1276 flow [2022-04-18 16:34:01,561 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1169, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1276, PETRI_PLACES=473, PETRI_TRANSITIONS=463} [2022-04-18 16:34:01,561 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, 13 predicate places. [2022-04-18 16:34:01,561 INFO L478 AbstractCegarLoop]: Abstraction has has 473 places, 463 transitions, 1276 flow [2022-04-18 16:34:01,562 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 413.125) internal successors, (3305), 8 states have internal predecessors, (3305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:01,562 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:01,562 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:01,562 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-18 16:34:01,562 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:34:01,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:01,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1645321303, now seen corresponding path program 1 times [2022-04-18 16:34:01,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:01,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055813028] [2022-04-18 16:34:01,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:01,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:01,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 16:34:01,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:01,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055813028] [2022-04-18 16:34:01,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055813028] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:01,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:01,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:34:01,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768171973] [2022-04-18 16:34:01,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:01,641 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:34:01,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:01,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:34:01,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:34:01,644 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 504 [2022-04-18 16:34:01,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 463 transitions, 1276 flow. Second operand has 6 states, 6 states have (on average 406.6666666666667) internal successors, (2440), 6 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:01,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:01,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 504 [2022-04-18 16:34:01,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:05,907 INFO L129 PetriNetUnfolder]: 11451/30124 cut-off events. [2022-04-18 16:34:05,907 INFO L130 PetriNetUnfolder]: For 2469/2709 co-relation queries the response was YES. [2022-04-18 16:34:06,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52191 conditions, 30124 events. 11451/30124 cut-off events. For 2469/2709 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 297100 event pairs, 2492 based on Foata normal form. 6/27790 useless extension candidates. Maximal degree in co-relation 52104. Up to 11076 conditions per place. [2022-04-18 16:34:06,293 INFO L132 encePairwiseOnDemand]: 497/504 looper letters, 218 selfloop transitions, 5 changer transitions 0/596 dead transitions. [2022-04-18 16:34:06,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 596 transitions, 1999 flow [2022-04-18 16:34:06,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:34:06,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:34:06,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2638 transitions. [2022-04-18 16:34:06,295 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8723544973544973 [2022-04-18 16:34:06,295 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2638 transitions. [2022-04-18 16:34:06,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2638 transitions. [2022-04-18 16:34:06,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:06,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2638 transitions. [2022-04-18 16:34:06,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 439.6666666666667) internal successors, (2638), 6 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:06,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:06,300 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:06,301 INFO L186 Difference]: Start difference. First operand has 473 places, 463 transitions, 1276 flow. Second operand 6 states and 2638 transitions. [2022-04-18 16:34:06,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 596 transitions, 1999 flow [2022-04-18 16:34:06,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 596 transitions, 1987 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:34:06,317 INFO L242 Difference]: Finished difference. Result has 472 places, 461 transitions, 1270 flow [2022-04-18 16:34:06,317 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1260, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1270, PETRI_PLACES=472, PETRI_TRANSITIONS=461} [2022-04-18 16:34:06,318 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, 12 predicate places. [2022-04-18 16:34:06,318 INFO L478 AbstractCegarLoop]: Abstraction has has 472 places, 461 transitions, 1270 flow [2022-04-18 16:34:06,318 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 406.6666666666667) internal successors, (2440), 6 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:06,318 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:06,319 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:06,319 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-18 16:34:06,319 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:34:06,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:06,319 INFO L85 PathProgramCache]: Analyzing trace with hash -400649934, now seen corresponding path program 1 times [2022-04-18 16:34:06,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:06,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825118764] [2022-04-18 16:34:06,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:06,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:06,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 16:34:06,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:06,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825118764] [2022-04-18 16:34:06,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825118764] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:06,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:06,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:34:06,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123626710] [2022-04-18 16:34:06,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:06,382 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:34:06,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:06,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:34:06,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:34:06,384 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 504 [2022-04-18 16:34:06,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 461 transitions, 1270 flow. Second operand has 6 states, 6 states have (on average 406.8333333333333) internal successors, (2441), 6 states have internal predecessors, (2441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:06,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:06,385 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 504 [2022-04-18 16:34:06,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:10,639 INFO L129 PetriNetUnfolder]: 10794/29153 cut-off events. [2022-04-18 16:34:10,639 INFO L130 PetriNetUnfolder]: For 3669/4072 co-relation queries the response was YES. [2022-04-18 16:34:11,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51033 conditions, 29153 events. 10794/29153 cut-off events. For 3669/4072 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 290589 event pairs, 2166 based on Foata normal form. 27/27261 useless extension candidates. Maximal degree in co-relation 50948. Up to 11053 conditions per place. [2022-04-18 16:34:11,122 INFO L132 encePairwiseOnDemand]: 497/504 looper letters, 222 selfloop transitions, 5 changer transitions 0/600 dead transitions. [2022-04-18 16:34:11,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 600 transitions, 2047 flow [2022-04-18 16:34:11,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:34:11,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:34:11,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2642 transitions. [2022-04-18 16:34:11,124 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8736772486772487 [2022-04-18 16:34:11,124 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2642 transitions. [2022-04-18 16:34:11,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2642 transitions. [2022-04-18 16:34:11,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:11,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2642 transitions. [2022-04-18 16:34:11,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 440.3333333333333) internal successors, (2642), 6 states have internal predecessors, (2642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:11,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:11,129 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:11,129 INFO L186 Difference]: Start difference. First operand has 472 places, 461 transitions, 1270 flow. Second operand 6 states and 2642 transitions. [2022-04-18 16:34:11,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 600 transitions, 2047 flow [2022-04-18 16:34:11,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 600 transitions, 2005 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:34:11,151 INFO L242 Difference]: Finished difference. Result has 470 places, 459 transitions, 1266 flow [2022-04-18 16:34:11,152 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1256, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1266, PETRI_PLACES=470, PETRI_TRANSITIONS=459} [2022-04-18 16:34:11,152 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, 10 predicate places. [2022-04-18 16:34:11,153 INFO L478 AbstractCegarLoop]: Abstraction has has 470 places, 459 transitions, 1266 flow [2022-04-18 16:34:11,153 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 406.8333333333333) internal successors, (2441), 6 states have internal predecessors, (2441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:11,153 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:11,153 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:11,153 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-18 16:34:11,153 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:34:11,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:11,154 INFO L85 PathProgramCache]: Analyzing trace with hash -922929411, now seen corresponding path program 1 times [2022-04-18 16:34:11,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:11,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979526403] [2022-04-18 16:34:11,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:11,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:11,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 16:34:11,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:11,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979526403] [2022-04-18 16:34:11,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979526403] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:11,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:11,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:34:11,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895341513] [2022-04-18 16:34:11,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:11,223 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:34:11,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:11,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:34:11,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:34:11,225 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 504 [2022-04-18 16:34:11,226 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 459 transitions, 1266 flow. Second operand has 6 states, 6 states have (on average 407.6666666666667) internal successors, (2446), 6 states have internal predecessors, (2446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:11,226 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:11,226 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 504 [2022-04-18 16:34:11,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:15,349 INFO L129 PetriNetUnfolder]: 10294/31050 cut-off events. [2022-04-18 16:34:15,349 INFO L130 PetriNetUnfolder]: For 3351/3567 co-relation queries the response was YES. [2022-04-18 16:34:15,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52535 conditions, 31050 events. 10294/31050 cut-off events. For 3351/3567 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 329039 event pairs, 3983 based on Foata normal form. 6/29330 useless extension candidates. Maximal degree in co-relation 52450. Up to 7072 conditions per place. [2022-04-18 16:34:15,809 INFO L132 encePairwiseOnDemand]: 497/504 looper letters, 206 selfloop transitions, 5 changer transitions 0/584 dead transitions. [2022-04-18 16:34:15,810 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 584 transitions, 1981 flow [2022-04-18 16:34:15,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:34:15,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:34:15,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2626 transitions. [2022-04-18 16:34:15,812 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8683862433862434 [2022-04-18 16:34:15,812 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2626 transitions. [2022-04-18 16:34:15,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2626 transitions. [2022-04-18 16:34:15,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:15,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2626 transitions. [2022-04-18 16:34:15,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 437.6666666666667) internal successors, (2626), 6 states have internal predecessors, (2626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:15,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:15,821 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:15,821 INFO L186 Difference]: Start difference. First operand has 470 places, 459 transitions, 1266 flow. Second operand 6 states and 2626 transitions. [2022-04-18 16:34:15,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 584 transitions, 1981 flow [2022-04-18 16:34:15,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 584 transitions, 1939 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:34:15,849 INFO L242 Difference]: Finished difference. Result has 468 places, 457 transitions, 1262 flow [2022-04-18 16:34:15,849 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1252, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1262, PETRI_PLACES=468, PETRI_TRANSITIONS=457} [2022-04-18 16:34:15,852 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, 8 predicate places. [2022-04-18 16:34:15,852 INFO L478 AbstractCegarLoop]: Abstraction has has 468 places, 457 transitions, 1262 flow [2022-04-18 16:34:15,852 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 407.6666666666667) internal successors, (2446), 6 states have internal predecessors, (2446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:15,853 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:15,853 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:15,853 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-18 16:34:15,853 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:34:15,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:15,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1468916526, now seen corresponding path program 1 times [2022-04-18 16:34:15,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:15,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190775225] [2022-04-18 16:34:15,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:15,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:15,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:15,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:15,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190775225] [2022-04-18 16:34:15,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190775225] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:15,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:15,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 16:34:15,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628890480] [2022-04-18 16:34:15,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:15,903 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:15,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:15,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:15,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:15,905 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 504 [2022-04-18 16:34:15,906 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 457 transitions, 1262 flow. Second operand has 3 states, 3 states have (on average 479.6666666666667) internal successors, (1439), 3 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:15,906 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:15,906 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 504 [2022-04-18 16:34:15,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:16,288 INFO L129 PetriNetUnfolder]: 272/3624 cut-off events. [2022-04-18 16:34:16,288 INFO L130 PetriNetUnfolder]: For 495/505 co-relation queries the response was YES. [2022-04-18 16:34:16,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4731 conditions, 3624 events. 272/3624 cut-off events. For 495/505 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 29772 event pairs, 50 based on Foata normal form. 1/3317 useless extension candidates. Maximal degree in co-relation 4643. Up to 248 conditions per place. [2022-04-18 16:34:16,314 INFO L132 encePairwiseOnDemand]: 500/504 looper letters, 19 selfloop transitions, 2 changer transitions 0/462 dead transitions. [2022-04-18 16:34:16,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 462 transitions, 1317 flow [2022-04-18 16:34:16,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:16,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:16,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1451 transitions. [2022-04-18 16:34:16,316 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9596560846560847 [2022-04-18 16:34:16,316 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1451 transitions. [2022-04-18 16:34:16,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1451 transitions. [2022-04-18 16:34:16,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:16,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1451 transitions. [2022-04-18 16:34:16,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.6666666666667) internal successors, (1451), 3 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:16,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:16,319 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:16,319 INFO L186 Difference]: Start difference. First operand has 468 places, 457 transitions, 1262 flow. Second operand 3 states and 1451 transitions. [2022-04-18 16:34:16,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 462 transitions, 1317 flow [2022-04-18 16:34:16,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 462 transitions, 1307 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:34:16,328 INFO L242 Difference]: Finished difference. Result has 467 places, 459 transitions, 1272 flow [2022-04-18 16:34:16,329 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1252, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1272, PETRI_PLACES=467, PETRI_TRANSITIONS=459} [2022-04-18 16:34:16,329 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, 7 predicate places. [2022-04-18 16:34:16,329 INFO L478 AbstractCegarLoop]: Abstraction has has 467 places, 459 transitions, 1272 flow [2022-04-18 16:34:16,329 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 479.6666666666667) internal successors, (1439), 3 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:16,329 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:16,330 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:16,330 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-18 16:34:16,330 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:34:16,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:16,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1979715312, now seen corresponding path program 2 times [2022-04-18 16:34:16,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:16,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543001599] [2022-04-18 16:34:16,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:16,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:16,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:16,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:16,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543001599] [2022-04-18 16:34:16,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543001599] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:16,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:16,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 16:34:16,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299867207] [2022-04-18 16:34:16,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:16,356 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:16,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:16,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:16,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:16,358 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 504 [2022-04-18 16:34:16,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 459 transitions, 1272 flow. Second operand has 3 states, 3 states have (on average 479.6666666666667) internal successors, (1439), 3 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:16,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:16,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 504 [2022-04-18 16:34:16,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:16,691 INFO L129 PetriNetUnfolder]: 224/3244 cut-off events. [2022-04-18 16:34:16,691 INFO L130 PetriNetUnfolder]: For 674/690 co-relation queries the response was YES. [2022-04-18 16:34:16,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4483 conditions, 3244 events. 224/3244 cut-off events. For 674/690 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 25340 event pairs, 54 based on Foata normal form. 14/3062 useless extension candidates. Maximal degree in co-relation 4394. Up to 189 conditions per place. [2022-04-18 16:34:16,718 INFO L132 encePairwiseOnDemand]: 500/504 looper letters, 21 selfloop transitions, 2 changer transitions 0/464 dead transitions. [2022-04-18 16:34:16,718 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 464 transitions, 1335 flow [2022-04-18 16:34:16,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:16,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:16,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1451 transitions. [2022-04-18 16:34:16,720 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9596560846560847 [2022-04-18 16:34:16,720 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1451 transitions. [2022-04-18 16:34:16,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1451 transitions. [2022-04-18 16:34:16,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:16,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1451 transitions. [2022-04-18 16:34:16,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.6666666666667) internal successors, (1451), 3 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:16,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:16,723 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:16,723 INFO L186 Difference]: Start difference. First operand has 467 places, 459 transitions, 1272 flow. Second operand 3 states and 1451 transitions. [2022-04-18 16:34:16,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 464 transitions, 1335 flow [2022-04-18 16:34:16,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 464 transitions, 1333 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:34:16,733 INFO L242 Difference]: Finished difference. Result has 470 places, 461 transitions, 1294 flow [2022-04-18 16:34:16,734 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1294, PETRI_PLACES=470, PETRI_TRANSITIONS=461} [2022-04-18 16:34:16,734 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, 10 predicate places. [2022-04-18 16:34:16,734 INFO L478 AbstractCegarLoop]: Abstraction has has 470 places, 461 transitions, 1294 flow [2022-04-18 16:34:16,735 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 479.6666666666667) internal successors, (1439), 3 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:16,735 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:16,735 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:16,735 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-18 16:34:16,735 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:34:16,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:16,736 INFO L85 PathProgramCache]: Analyzing trace with hash -2097304232, now seen corresponding path program 1 times [2022-04-18 16:34:16,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:16,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97435803] [2022-04-18 16:34:16,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:16,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:16,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 16:34:16,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:16,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97435803] [2022-04-18 16:34:16,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97435803] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:16,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:16,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:34:16,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370131388] [2022-04-18 16:34:16,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:16,832 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:34:16,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:16,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:34:16,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:34:16,836 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 504 [2022-04-18 16:34:16,837 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 461 transitions, 1294 flow. Second operand has 6 states, 6 states have (on average 407.8333333333333) internal successors, (2447), 6 states have internal predecessors, (2447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:16,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:16,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 504 [2022-04-18 16:34:16,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:20,781 INFO L129 PetriNetUnfolder]: 9899/29475 cut-off events. [2022-04-18 16:34:20,781 INFO L130 PetriNetUnfolder]: For 3248/3625 co-relation queries the response was YES. [2022-04-18 16:34:21,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49480 conditions, 29475 events. 9899/29475 cut-off events. For 3248/3625 co-relation queries the response was YES. Maximal size of possible extension queue 479. Compared 308933 event pairs, 3890 based on Foata normal form. 26/28283 useless extension candidates. Maximal degree in co-relation 49393. Up to 6863 conditions per place. [2022-04-18 16:34:21,214 INFO L132 encePairwiseOnDemand]: 497/504 looper letters, 210 selfloop transitions, 5 changer transitions 0/592 dead transitions. [2022-04-18 16:34:21,214 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 592 transitions, 1999 flow [2022-04-18 16:34:21,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:34:21,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:34:21,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2630 transitions. [2022-04-18 16:34:21,217 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8697089947089947 [2022-04-18 16:34:21,217 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2630 transitions. [2022-04-18 16:34:21,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2630 transitions. [2022-04-18 16:34:21,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:21,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2630 transitions. [2022-04-18 16:34:21,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 438.3333333333333) internal successors, (2630), 6 states have internal predecessors, (2630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:21,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:21,221 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:21,221 INFO L186 Difference]: Start difference. First operand has 470 places, 461 transitions, 1294 flow. Second operand 6 states and 2630 transitions. [2022-04-18 16:34:21,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 592 transitions, 1999 flow [2022-04-18 16:34:21,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 592 transitions, 1993 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-04-18 16:34:21,245 INFO L242 Difference]: Finished difference. Result has 472 places, 459 transitions, 1294 flow [2022-04-18 16:34:21,246 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1294, PETRI_PLACES=472, PETRI_TRANSITIONS=459} [2022-04-18 16:34:21,247 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, 12 predicate places. [2022-04-18 16:34:21,247 INFO L478 AbstractCegarLoop]: Abstraction has has 472 places, 459 transitions, 1294 flow [2022-04-18 16:34:21,247 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 407.8333333333333) internal successors, (2447), 6 states have internal predecessors, (2447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:21,247 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:21,248 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:21,248 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-18 16:34:21,248 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:34:21,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:21,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1139940656, now seen corresponding path program 1 times [2022-04-18 16:34:21,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:21,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680967992] [2022-04-18 16:34:21,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:21,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:21,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:21,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:21,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680967992] [2022-04-18 16:34:21,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680967992] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:21,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:21,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 16:34:21,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665104508] [2022-04-18 16:34:21,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:21,284 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:21,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:21,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:21,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:21,286 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 504 [2022-04-18 16:34:21,298 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 459 transitions, 1294 flow. Second operand has 3 states, 3 states have (on average 480.0) internal successors, (1440), 3 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:21,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:21,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 504 [2022-04-18 16:34:21,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:21,644 INFO L129 PetriNetUnfolder]: 199/3651 cut-off events. [2022-04-18 16:34:21,645 INFO L130 PetriNetUnfolder]: For 564/570 co-relation queries the response was YES. [2022-04-18 16:34:21,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4905 conditions, 3651 events. 199/3651 cut-off events. For 564/570 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 29611 event pairs, 46 based on Foata normal form. 0/3404 useless extension candidates. Maximal degree in co-relation 4815. Up to 208 conditions per place. [2022-04-18 16:34:21,671 INFO L132 encePairwiseOnDemand]: 502/504 looper letters, 23 selfloop transitions, 1 changer transitions 0/463 dead transitions. [2022-04-18 16:34:21,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 463 transitions, 1354 flow [2022-04-18 16:34:21,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:21,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:21,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1449 transitions. [2022-04-18 16:34:21,673 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2022-04-18 16:34:21,673 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1449 transitions. [2022-04-18 16:34:21,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1449 transitions. [2022-04-18 16:34:21,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:21,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1449 transitions. [2022-04-18 16:34:21,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:21,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:21,675 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:21,675 INFO L186 Difference]: Start difference. First operand has 472 places, 459 transitions, 1294 flow. Second operand 3 states and 1449 transitions. [2022-04-18 16:34:21,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 463 transitions, 1354 flow [2022-04-18 16:34:21,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 463 transitions, 1344 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:34:21,685 INFO L242 Difference]: Finished difference. Result has 470 places, 459 transitions, 1289 flow [2022-04-18 16:34:21,686 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1289, PETRI_PLACES=470, PETRI_TRANSITIONS=459} [2022-04-18 16:34:21,686 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, 10 predicate places. [2022-04-18 16:34:21,686 INFO L478 AbstractCegarLoop]: Abstraction has has 470 places, 459 transitions, 1289 flow [2022-04-18 16:34:21,686 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 480.0) internal successors, (1440), 3 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:21,686 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:21,687 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:21,687 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-18 16:34:21,687 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:34:21,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:21,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1181576694, now seen corresponding path program 2 times [2022-04-18 16:34:21,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:21,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303655393] [2022-04-18 16:34:21,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:21,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:21,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:21,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:21,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303655393] [2022-04-18 16:34:21,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303655393] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:21,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:21,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 16:34:21,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393628113] [2022-04-18 16:34:21,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:21,718 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:21,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:21,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:21,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:21,719 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 504 [2022-04-18 16:34:21,720 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 459 transitions, 1289 flow. Second operand has 3 states, 3 states have (on average 480.0) internal successors, (1440), 3 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:21,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:21,720 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 504 [2022-04-18 16:34:21,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:22,111 INFO L129 PetriNetUnfolder]: 206/3758 cut-off events. [2022-04-18 16:34:22,112 INFO L130 PetriNetUnfolder]: For 685/691 co-relation queries the response was YES. [2022-04-18 16:34:22,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5044 conditions, 3758 events. 206/3758 cut-off events. For 685/691 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 31955 event pairs, 42 based on Foata normal form. 8/3557 useless extension candidates. Maximal degree in co-relation 4953. Up to 217 conditions per place. [2022-04-18 16:34:22,138 INFO L132 encePairwiseOnDemand]: 502/504 looper letters, 24 selfloop transitions, 1 changer transitions 0/464 dead transitions. [2022-04-18 16:34:22,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 464 transitions, 1354 flow [2022-04-18 16:34:22,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:22,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:22,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1450 transitions. [2022-04-18 16:34:22,140 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.958994708994709 [2022-04-18 16:34:22,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1450 transitions. [2022-04-18 16:34:22,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1450 transitions. [2022-04-18 16:34:22,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:22,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1450 transitions. [2022-04-18 16:34:22,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.3333333333333) internal successors, (1450), 3 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:22,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:22,142 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:22,142 INFO L186 Difference]: Start difference. First operand has 470 places, 459 transitions, 1289 flow. Second operand 3 states and 1450 transitions. [2022-04-18 16:34:22,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 464 transitions, 1354 flow [2022-04-18 16:34:22,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 464 transitions, 1353 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:34:22,154 INFO L242 Difference]: Finished difference. Result has 472 places, 459 transitions, 1293 flow [2022-04-18 16:34:22,154 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1288, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1293, PETRI_PLACES=472, PETRI_TRANSITIONS=459} [2022-04-18 16:34:22,155 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, 12 predicate places. [2022-04-18 16:34:22,155 INFO L478 AbstractCegarLoop]: Abstraction has has 472 places, 459 transitions, 1293 flow [2022-04-18 16:34:22,155 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 480.0) internal successors, (1440), 3 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:22,155 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:22,155 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:22,155 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-18 16:34:22,155 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:34:22,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:22,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1404562646, now seen corresponding path program 1 times [2022-04-18 16:34:22,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:22,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436792103] [2022-04-18 16:34:22,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:22,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:22,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:22,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:22,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436792103] [2022-04-18 16:34:22,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436792103] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:22,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:22,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:22,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145773350] [2022-04-18 16:34:22,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:22,197 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:22,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:22,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:22,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:22,199 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 504 [2022-04-18 16:34:22,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 459 transitions, 1293 flow. Second operand has 3 states, 3 states have (on average 472.6666666666667) internal successors, (1418), 3 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:22,200 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:22,200 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 504 [2022-04-18 16:34:22,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:22,554 INFO L129 PetriNetUnfolder]: 168/3549 cut-off events. [2022-04-18 16:34:22,554 INFO L130 PetriNetUnfolder]: For 505/534 co-relation queries the response was YES. [2022-04-18 16:34:22,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4803 conditions, 3549 events. 168/3549 cut-off events. For 505/534 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 29790 event pairs, 31 based on Foata normal form. 0/3389 useless extension candidates. Maximal degree in co-relation 4715. Up to 145 conditions per place. [2022-04-18 16:34:22,579 INFO L132 encePairwiseOnDemand]: 500/504 looper letters, 16 selfloop transitions, 1 changer transitions 0/456 dead transitions. [2022-04-18 16:34:22,579 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 456 transitions, 1321 flow [2022-04-18 16:34:22,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:22,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:22,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1430 transitions. [2022-04-18 16:34:22,580 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9457671957671958 [2022-04-18 16:34:22,580 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1430 transitions. [2022-04-18 16:34:22,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1430 transitions. [2022-04-18 16:34:22,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:22,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1430 transitions. [2022-04-18 16:34:22,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 476.6666666666667) internal successors, (1430), 3 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:22,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:22,582 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:22,582 INFO L186 Difference]: Start difference. First operand has 472 places, 459 transitions, 1293 flow. Second operand 3 states and 1430 transitions. [2022-04-18 16:34:22,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 456 transitions, 1321 flow [2022-04-18 16:34:22,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 456 transitions, 1320 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:34:22,591 INFO L242 Difference]: Finished difference. Result has 470 places, 456 transitions, 1288 flow [2022-04-18 16:34:22,591 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1286, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1288, PETRI_PLACES=470, PETRI_TRANSITIONS=456} [2022-04-18 16:34:22,591 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, 10 predicate places. [2022-04-18 16:34:22,591 INFO L478 AbstractCegarLoop]: Abstraction has has 470 places, 456 transitions, 1288 flow [2022-04-18 16:34:22,592 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.6666666666667) internal successors, (1418), 3 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:22,592 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:22,592 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:22,592 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-18 16:34:22,592 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:34:22,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:22,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1514462043, now seen corresponding path program 1 times [2022-04-18 16:34:22,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:22,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436660780] [2022-04-18 16:34:22,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:22,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:22,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 16:34:22,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:22,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436660780] [2022-04-18 16:34:22,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436660780] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:22,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:22,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:22,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775814096] [2022-04-18 16:34:22,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:22,623 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:22,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:22,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:22,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:22,625 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 504 [2022-04-18 16:34:22,625 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 456 transitions, 1288 flow. Second operand has 3 states, 3 states have (on average 472.6666666666667) internal successors, (1418), 3 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:22,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:22,626 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 504 [2022-04-18 16:34:22,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:22,962 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1377] thread2EXIT-->L100-7: Formula: (and (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem40#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[][303], [Black: 637#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 639#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (= thread1Thread1of1ForFork1_~i~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 641#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (not |thread1Thread1of1ForFork1_#t~short2|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (= thread1Thread1of1ForFork1_~i~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 707#(not (= (+ ~count1~0 (* (- 1) ~count2~0)) 0)), Black: 635#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 530#(= |#race~count2~0| 0), Black: 711#true, 595#(= |#race~get2~0| 0), Black: 586#(and (<= ~n1~0 0) (not |thread1Thread1of1ForFork1_#t~short2|) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 574#(<= ~n1~0 0), Black: 575#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), 517#(= |#race~n2~0| 0), Black: 523#true, Black: 580#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), 734#true, Black: 528#true, 525#(= |#race~count1~0| 0), Black: 593#true, 668#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 726#(<= (+ ~count1~0 1) ~count2~0), Black: 731#(<= (+ ~count2~0 1) ~count1~0), 502#(= |#race~n1~0| 0), Black: 542#(not |thread1Thread1of1ForFork1_#t~short2|), 569#true, 738#true, Black: 674#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= thread2Thread1of1ForFork0_~i~1 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 672#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 550#true, Black: 676#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (not |thread2Thread1of1ForFork0_#t~short13|) (<= ~n2~0 0) (= thread2Thread1of1ForFork0_~i~1 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 608#(and (<= ~n1~0 0) (= thread2Thread1of1ForFork0_~i~1 0)), Black: 619#(and (not |thread2Thread1of1ForFork0_#t~short13|) (<= ~n1~0 0) (= thread2Thread1of1ForFork0_~i~1 0)), Black: 607#(<= ~n1~0 0), Black: 557#(not |thread2Thread1of1ForFork0_#t~short13|), 657#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), 538#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 412#L100-7true, 552#(= |#race~get1~0| 0), 713#(= (+ ~count1~0 (* (- 1) ~count2~0)) 0)]) [2022-04-18 16:34:22,963 INFO L384 tUnfolder$Statistics]: this new event has 252 ancestors and is cut-off event [2022-04-18 16:34:22,963 INFO L387 tUnfolder$Statistics]: existing Event has 243 ancestors and is cut-off event [2022-04-18 16:34:22,963 INFO L387 tUnfolder$Statistics]: existing Event has 243 ancestors and is cut-off event [2022-04-18 16:34:22,963 INFO L387 tUnfolder$Statistics]: existing Event has 274 ancestors and is cut-off event [2022-04-18 16:34:22,971 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1305] L77-6-->L77-7: Formula: (= |v_thread2Thread1of1ForFork0_#t~nondet20_3| |v_#race~res2~0_1|) InVars {thread2Thread1of1ForFork0_#t~nondet20=|v_thread2Thread1of1ForFork0_#t~nondet20_3|} OutVars{thread2Thread1of1ForFork0_#t~nondet20=|v_thread2Thread1of1ForFork0_#t~nondet20_3|, #race~res2~0=|v_#race~res2~0_1|} AuxVars[] AssignedVars[#race~res2~0][265], [Black: 637#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 639#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (= thread1Thread1of1ForFork1_~i~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 641#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (not |thread1Thread1of1ForFork1_#t~short2|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (= thread1Thread1of1ForFork1_~i~0 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 707#(not (= (+ ~count1~0 (* (- 1) ~count2~0)) 0)), Black: 635#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 711#true, 530#(= |#race~count2~0| 0), 595#(= |#race~get2~0| 0), Black: 586#(and (<= ~n1~0 0) (not |thread1Thread1of1ForFork1_#t~short2|) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 574#(<= ~n1~0 0), Black: 575#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), 517#(= |#race~n2~0| 0), Black: 523#true, Black: 580#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), 734#true, Black: 528#true, 525#(= |#race~count1~0| 0), Black: 593#true, 668#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 726#(<= (+ ~count1~0 1) ~count2~0), Black: 731#(<= (+ ~count2~0 1) ~count1~0), 502#(= |#race~n1~0| 0), Black: 542#(not |thread1Thread1of1ForFork1_#t~short2|), 569#true, 738#true, Black: 674#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= thread2Thread1of1ForFork0_~i~1 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 672#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 550#true, Black: 676#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (not |thread2Thread1of1ForFork0_#t~short13|) (<= ~n2~0 0) (= thread2Thread1of1ForFork0_~i~1 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 608#(and (<= ~n1~0 0) (= thread2Thread1of1ForFork0_~i~1 0)), Black: 619#(and (not |thread2Thread1of1ForFork0_#t~short13|) (<= ~n1~0 0) (= thread2Thread1of1ForFork0_~i~1 0)), Black: 607#(<= ~n1~0 0), Black: 557#(not |thread2Thread1of1ForFork0_#t~short13|), 538#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 199#L99-7true, 552#(= |#race~get1~0| 0), 184#L77-7true, 713#(= (+ ~count1~0 (* (- 1) ~count2~0)) 0)]) [2022-04-18 16:34:22,971 INFO L384 tUnfolder$Statistics]: this new event has 258 ancestors and is cut-off event [2022-04-18 16:34:22,971 INFO L387 tUnfolder$Statistics]: existing Event has 240 ancestors and is cut-off event [2022-04-18 16:34:22,971 INFO L387 tUnfolder$Statistics]: existing Event has 240 ancestors and is cut-off event [2022-04-18 16:34:22,971 INFO L387 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-04-18 16:34:22,981 INFO L129 PetriNetUnfolder]: 205/3502 cut-off events. [2022-04-18 16:34:22,981 INFO L130 PetriNetUnfolder]: For 478/513 co-relation queries the response was YES. [2022-04-18 16:34:23,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4718 conditions, 3502 events. 205/3502 cut-off events. For 478/513 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 29760 event pairs, 42 based on Foata normal form. 18/3377 useless extension candidates. Maximal degree in co-relation 4630. Up to 272 conditions per place. [2022-04-18 16:34:23,004 INFO L132 encePairwiseOnDemand]: 498/504 looper letters, 10 selfloop transitions, 0 changer transitions 82/455 dead transitions. [2022-04-18 16:34:23,004 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 455 transitions, 1322 flow [2022-04-18 16:34:23,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:23,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:23,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1431 transitions. [2022-04-18 16:34:23,005 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9464285714285714 [2022-04-18 16:34:23,005 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1431 transitions. [2022-04-18 16:34:23,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1431 transitions. [2022-04-18 16:34:23,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:23,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1431 transitions. [2022-04-18 16:34:23,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:23,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:23,008 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:23,008 INFO L186 Difference]: Start difference. First operand has 470 places, 456 transitions, 1288 flow. Second operand 3 states and 1431 transitions. [2022-04-18 16:34:23,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 455 transitions, 1322 flow [2022-04-18 16:34:23,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 455 transitions, 1321 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:34:23,015 INFO L242 Difference]: Finished difference. Result has 468 places, 373 transitions, 934 flow [2022-04-18 16:34:23,015 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1281, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=934, PETRI_PLACES=468, PETRI_TRANSITIONS=373} [2022-04-18 16:34:23,016 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, 8 predicate places. [2022-04-18 16:34:23,016 INFO L478 AbstractCegarLoop]: Abstraction has has 468 places, 373 transitions, 934 flow [2022-04-18 16:34:23,016 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.6666666666667) internal successors, (1418), 3 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:23,016 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:23,016 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:23,016 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-18 16:34:23,016 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting thread1Err12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:34:23,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:23,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1594126926, now seen corresponding path program 1 times [2022-04-18 16:34:23,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:23,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125120383] [2022-04-18 16:34:23,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:23,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:23,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 16:34:23,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:23,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125120383] [2022-04-18 16:34:23,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125120383] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:23,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:23,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:23,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261351031] [2022-04-18 16:34:23,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:23,049 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:23,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:23,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:23,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:23,051 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 504 [2022-04-18 16:34:23,051 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 373 transitions, 934 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:23,051 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:23,051 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 504 [2022-04-18 16:34:23,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:23,187 INFO L129 PetriNetUnfolder]: 74/1315 cut-off events. [2022-04-18 16:34:23,187 INFO L130 PetriNetUnfolder]: For 150/153 co-relation queries the response was YES. [2022-04-18 16:34:23,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1794 conditions, 1315 events. 74/1315 cut-off events. For 150/153 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7512 event pairs, 8 based on Foata normal form. 0/1273 useless extension candidates. Maximal degree in co-relation 1764. Up to 38 conditions per place. [2022-04-18 16:34:23,198 INFO L132 encePairwiseOnDemand]: 501/504 looper letters, 8 selfloop transitions, 2 changer transitions 0/373 dead transitions. [2022-04-18 16:34:23,199 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 373 transitions, 955 flow [2022-04-18 16:34:23,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:23,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:23,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1415 transitions. [2022-04-18 16:34:23,200 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9358465608465608 [2022-04-18 16:34:23,200 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1415 transitions. [2022-04-18 16:34:23,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1415 transitions. [2022-04-18 16:34:23,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:23,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1415 transitions. [2022-04-18 16:34:23,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 471.6666666666667) internal successors, (1415), 3 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:23,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:23,202 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:23,202 INFO L186 Difference]: Start difference. First operand has 468 places, 373 transitions, 934 flow. Second operand 3 states and 1415 transitions. [2022-04-18 16:34:23,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 373 transitions, 955 flow [2022-04-18 16:34:23,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 373 transitions, 887 flow, removed 17 selfloop flow, removed 22 redundant places. [2022-04-18 16:34:23,207 INFO L242 Difference]: Finished difference. Result has 384 places, 372 transitions, 868 flow [2022-04-18 16:34:23,208 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=868, PETRI_PLACES=384, PETRI_TRANSITIONS=372} [2022-04-18 16:34:23,208 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -76 predicate places. [2022-04-18 16:34:23,208 INFO L478 AbstractCegarLoop]: Abstraction has has 384 places, 372 transitions, 868 flow [2022-04-18 16:34:23,208 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:23,208 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:34:23,209 INFO L255 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:23,209 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-18 16:34:23,209 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting thread2Err12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-04-18 16:34:23,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:34:23,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1229003988, now seen corresponding path program 1 times [2022-04-18 16:34:23,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:34:23,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714632094] [2022-04-18 16:34:23,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:34:23,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:34:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:34:23,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-18 16:34:23,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:34:23,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714632094] [2022-04-18 16:34:23,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714632094] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:34:23,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:34:23,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:34:23,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17106357] [2022-04-18 16:34:23,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:34:23,245 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:34:23,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:34:23,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:34:23,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:34:23,246 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 504 [2022-04-18 16:34:23,247 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 372 transitions, 868 flow. Second operand has 3 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:23,247 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:34:23,247 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 504 [2022-04-18 16:34:23,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:34:23,350 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1305] L77-6-->L77-7: Formula: (= |v_thread2Thread1of1ForFork0_#t~nondet20_3| |v_#race~res2~0_1|) InVars {thread2Thread1of1ForFork0_#t~nondet20=|v_thread2Thread1of1ForFork0_#t~nondet20_3|} OutVars{thread2Thread1of1ForFork0_#t~nondet20=|v_thread2Thread1of1ForFork0_#t~nondet20_3|, #race~res2~0=|v_#race~res2~0_1|} AuxVars[] AssignedVars[#race~res2~0][264], [Black: 635#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 707#(not (= (+ ~count1~0 (* (- 1) ~count2~0)) 0)), Black: 711#true, 530#(= |#race~count2~0| 0), 595#(= |#race~get2~0| 0), 742#true, 517#(= |#race~n2~0| 0), Black: 523#true, Black: 580#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), Black: 528#true, 525#(= |#race~count1~0| 0), Black: 593#true, 668#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 502#(= |#race~n1~0| 0), Black: 542#(not |thread1Thread1of1ForFork1_#t~short2|), 569#true, 738#true, Black: 550#true, Black: 557#(not |thread2Thread1of1ForFork0_#t~short13|), 538#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 199#L99-7true, 552#(= |#race~get1~0| 0), 746#true, 184#L77-7true, 713#(= (+ ~count1~0 (* (- 1) ~count2~0)) 0)]) [2022-04-18 16:34:23,350 INFO L384 tUnfolder$Statistics]: this new event has 258 ancestors and is cut-off event [2022-04-18 16:34:23,350 INFO L387 tUnfolder$Statistics]: existing Event has 240 ancestors and is cut-off event [2022-04-18 16:34:23,350 INFO L387 tUnfolder$Statistics]: existing Event has 240 ancestors and is cut-off event [2022-04-18 16:34:23,350 INFO L387 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-04-18 16:34:23,351 INFO L129 PetriNetUnfolder]: 84/1180 cut-off events. [2022-04-18 16:34:23,351 INFO L130 PetriNetUnfolder]: For 58/62 co-relation queries the response was YES. [2022-04-18 16:34:23,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1480 conditions, 1180 events. 84/1180 cut-off events. For 58/62 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6450 event pairs, 10 based on Foata normal form. 0/1133 useless extension candidates. Maximal degree in co-relation 1464. Up to 82 conditions per place. [2022-04-18 16:34:23,358 INFO L132 encePairwiseOnDemand]: 501/504 looper letters, 0 selfloop transitions, 0 changer transitions 372/372 dead transitions. [2022-04-18 16:34:23,358 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 372 transitions, 893 flow [2022-04-18 16:34:23,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:34:23,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:34:23,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1417 transitions. [2022-04-18 16:34:23,361 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.9371693121693122 [2022-04-18 16:34:23,361 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1417 transitions. [2022-04-18 16:34:23,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1417 transitions. [2022-04-18 16:34:23,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:34:23,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1417 transitions. [2022-04-18 16:34:23,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:23,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:23,364 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:23,364 INFO L186 Difference]: Start difference. First operand has 384 places, 372 transitions, 868 flow. Second operand 3 states and 1417 transitions. [2022-04-18 16:34:23,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 372 transitions, 893 flow [2022-04-18 16:34:23,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 372 transitions, 889 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:34:23,367 INFO L242 Difference]: Finished difference. Result has 383 places, 0 transitions, 0 flow [2022-04-18 16:34:23,367 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=383, PETRI_TRANSITIONS=0} [2022-04-18 16:34:23,368 INFO L335 CegarLoopForPetriNet]: 460 programPoint places, -77 predicate places. [2022-04-18 16:34:23,368 INFO L478 AbstractCegarLoop]: Abstraction has has 383 places, 0 transitions, 0 flow [2022-04-18 16:34:23,368 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 16:34:23,370 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (95 of 96 remaining) [2022-04-18 16:34:23,370 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (94 of 96 remaining) [2022-04-18 16:34:23,370 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONDATA_RACE (93 of 96 remaining) [2022-04-18 16:34:23,370 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (92 of 96 remaining) [2022-04-18 16:34:23,370 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONDATA_RACE (91 of 96 remaining) [2022-04-18 16:34:23,370 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (90 of 96 remaining) [2022-04-18 16:34:23,370 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (89 of 96 remaining) [2022-04-18 16:34:23,370 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (88 of 96 remaining) [2022-04-18 16:34:23,370 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (87 of 96 remaining) [2022-04-18 16:34:23,370 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONDATA_RACE (86 of 96 remaining) [2022-04-18 16:34:23,370 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (85 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (84 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (83 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (82 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (81 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (80 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (79 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (78 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (77 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (76 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (75 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (74 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (73 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (72 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (71 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (70 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (69 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (68 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (67 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (66 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (65 of 96 remaining) [2022-04-18 16:34:23,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (64 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (63 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (62 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (61 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (60 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (59 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (58 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (57 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (56 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (55 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (54 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (53 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (52 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (51 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (50 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (49 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (48 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (47 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (46 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (45 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (44 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (43 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (42 of 96 remaining) [2022-04-18 16:34:23,372 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (41 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (40 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONDATA_RACE (35 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (34 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONDATA_RACE (33 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (32 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (31 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (30 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (29 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONDATA_RACE (28 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (27 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (26 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (25 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (24 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (23 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (22 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (21 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (20 of 96 remaining) [2022-04-18 16:34:23,373 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (19 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (18 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (17 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (16 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (14 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (13 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (12 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (11 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (10 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (9 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (8 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (6 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (5 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (4 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (3 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (2 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (1 of 96 remaining) [2022-04-18 16:34:23,374 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (0 of 96 remaining) [2022-04-18 16:34:23,374 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-18 16:34:23,377 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:34:23,380 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:34:23,380 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:34:23,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:34:23 BasicIcfg [2022-04-18 16:34:23,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:34:23,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:34:23,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:34:23,383 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:34:23,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:33:41" (3/4) ... [2022-04-18 16:34:23,385 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:34:23,389 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:34:23,389 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:34:23,393 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-04-18 16:34:23,393 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:34:23,393 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:34:23,393 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:34:23,421 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:34:23,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:34:23,422 INFO L158 Benchmark]: Toolchain (without parser) took 42830.36ms. Allocated memory was 119.5MB in the beginning and 5.7GB in the end (delta: 5.6GB). Free memory was 89.7MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. [2022-04-18 16:34:23,422 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory was 43.9MB in the beginning and 43.8MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:34:23,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.50ms. Allocated memory is still 119.5MB. Free memory was 89.4MB in the beginning and 93.4MB in the end (delta: -4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 16:34:23,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.23ms. Allocated memory is still 119.5MB. Free memory was 93.4MB in the beginning and 90.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:34:23,423 INFO L158 Benchmark]: Boogie Preprocessor took 34.79ms. Allocated memory is still 119.5MB. Free memory was 90.9MB in the beginning and 88.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:34:23,423 INFO L158 Benchmark]: RCFGBuilder took 670.93ms. Allocated memory is still 119.5MB. Free memory was 88.3MB in the beginning and 57.3MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-04-18 16:34:23,423 INFO L158 Benchmark]: TraceAbstraction took 41775.12ms. Allocated memory was 119.5MB in the beginning and 5.7GB in the end (delta: 5.6GB). Free memory was 56.9MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. [2022-04-18 16:34:23,423 INFO L158 Benchmark]: Witness Printer took 38.50ms. Allocated memory is still 5.7GB. Free memory was 2.4GB in the beginning and 2.4GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:34:23,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory was 43.9MB in the beginning and 43.8MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.50ms. Allocated memory is still 119.5MB. Free memory was 89.4MB in the beginning and 93.4MB in the end (delta: -4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.23ms. Allocated memory is still 119.5MB. Free memory was 93.4MB in the beginning and 90.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.79ms. Allocated memory is still 119.5MB. Free memory was 90.9MB in the beginning and 88.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 670.93ms. Allocated memory is still 119.5MB. Free memory was 88.3MB in the beginning and 57.3MB in the end (delta: 31.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 41775.12ms. Allocated memory was 119.5MB in the beginning and 5.7GB in the end (delta: 5.6GB). Free memory was 56.9MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. * Witness Printer took 38.50ms. Allocated memory is still 5.7GB. Free memory was 2.4GB in the beginning and 2.4GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 705 locations, 96 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 41.6s, OverallIterations: 38, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 39.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1099 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1099 mSDsluCounter, 1788 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1033 mSDsCounter, 803 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3779 IncrementalHoareTripleChecker+Invalid, 4582 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 803 mSolverCounterUnsat, 980 mSDtfsCounter, 3779 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1294occurred in iteration=31, InterpolantAutomatonStates: 165, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 5252 NumberOfCodeBlocks, 5252 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 5214 ConstructedInterpolants, 0 QuantifiedInterpolants, 7217 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 38 InterpolantComputations, 38 PerfectInterpolantSequences, 14/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 56 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:34:23,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE