./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons.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/popl20-prod-cons.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 f9b434f3343269d91303305376bff127738dc22172486554888e346753333fd7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 16:36:08,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 16:36:08,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 16:36:08,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 16:36:08,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 16:36:08,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 16:36:08,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 16:36:08,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 16:36:08,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 16:36:08,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 16:36:08,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 16:36:08,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 16:36:08,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 16:36:08,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 16:36:08,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 16:36:08,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 16:36:08,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 16:36:08,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 16:36:08,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 16:36:08,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 16:36:08,669 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 16:36:08,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 16:36:08,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 16:36:08,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 16:36:08,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 16:36:08,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 16:36:08,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 16:36:08,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 16:36:08,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 16:36:08,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 16:36:08,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 16:36:08,678 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 16:36:08,680 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 16:36:08,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 16:36:08,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 16:36:08,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 16:36:08,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 16:36:08,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 16:36:08,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 16:36:08,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 16:36:08,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 16:36:08,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 16:36:08,685 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-04-18 16:36:08,712 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 16:36:08,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 16:36:08,713 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 16:36:08,713 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 16:36:08,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 16:36:08,714 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 16:36:08,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-18 16:36:08,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-18 16:36:08,714 INFO L138 SettingsManager]: * Use SBE=true [2022-04-18 16:36:08,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 16:36:08,715 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 16:36:08,715 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 16:36:08,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 16:36:08,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 16:36:08,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 16:36:08,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 16:36:08,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 16:36:08,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 16:36:08,716 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 16:36:08,717 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 16:36:08,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 16:36:08,717 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 16:36:08,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 16:36:08,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 16:36:08,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 16:36:08,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 16:36:08,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:08,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 16:36:08,718 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 16:36:08,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 16:36:08,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-18 16:36:08,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 16:36:08,719 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-04-18 16:36:08,719 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-04-18 16:36:08,719 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 16:36:08,720 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9b434f3343269d91303305376bff127738dc22172486554888e346753333fd7 [2022-04-18 16:36:08,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 16:36:08,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 16:36:08,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 16:36:08,924 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 16:36:08,924 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 16:36:08,925 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons.wvr.c [2022-04-18 16:36:08,973 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad7f93a2d/c512ab031bde4c08875dbd783edbfafc/FLAG80312a617 [2022-04-18 16:36:09,345 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 16:36:09,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons.wvr.c [2022-04-18 16:36:09,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad7f93a2d/c512ab031bde4c08875dbd783edbfafc/FLAG80312a617 [2022-04-18 16:36:09,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad7f93a2d/c512ab031bde4c08875dbd783edbfafc [2022-04-18 16:36:09,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 16:36:09,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 16:36:09,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:09,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 16:36:09,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 16:36:09,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:09" (1/1) ... [2022-04-18 16:36:09,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c186cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:09, skipping insertion in model container [2022-04-18 16:36:09,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:36:09" (1/1) ... [2022-04-18 16:36:09,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 16:36:09,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 16:36:09,556 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/popl20-prod-cons.wvr.c[3056,3069] [2022-04-18 16:36:09,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:09,574 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 16:36:09,614 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/popl20-prod-cons.wvr.c[3056,3069] [2022-04-18 16:36:09,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 16:36:09,635 INFO L208 MainTranslator]: Completed translation [2022-04-18 16:36:09,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:09 WrapperNode [2022-04-18 16:36:09,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 16:36:09,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:09,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 16:36:09,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 16:36:09,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:09" (1/1) ... [2022-04-18 16:36:09,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:09" (1/1) ... [2022-04-18 16:36:09,682 INFO L137 Inliner]: procedures = 25, calls = 50, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 292 [2022-04-18 16:36:09,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 16:36:09,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 16:36:09,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 16:36:09,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 16:36:09,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:09" (1/1) ... [2022-04-18 16:36:09,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:09" (1/1) ... [2022-04-18 16:36:09,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:09" (1/1) ... [2022-04-18 16:36:09,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:09" (1/1) ... [2022-04-18 16:36:09,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:09" (1/1) ... [2022-04-18 16:36:09,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:09" (1/1) ... [2022-04-18 16:36:09,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:09" (1/1) ... [2022-04-18 16:36:09,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 16:36:09,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 16:36:09,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 16:36:09,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 16:36:09,724 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:09" (1/1) ... [2022-04-18 16:36:09,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 16:36:09,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-18 16:36:09,744 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 16:36:09,749 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 16:36:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 16:36:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 16:36:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 16:36:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 16:36:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-04-18 16:36:09,771 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-04-18 16:36:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-04-18 16:36:09,771 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-04-18 16:36:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-04-18 16:36:09,771 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-04-18 16:36:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 16:36:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 16:36:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 16:36:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-18 16:36:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 16:36:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 16:36:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 16:36:09,773 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 16:36:09,849 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 16:36:09,850 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 16:36:10,252 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 16:36:10,428 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 16:36:10,428 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-04-18 16:36:10,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:10 BoogieIcfgContainer [2022-04-18 16:36:10,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 16:36:10,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 16:36:10,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 16:36:10,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 16:36:10,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:36:09" (1/3) ... [2022-04-18 16:36:10,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e6bfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:10, skipping insertion in model container [2022-04-18 16:36:10,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:36:09" (2/3) ... [2022-04-18 16:36:10,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e6bfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:36:10, skipping insertion in model container [2022-04-18 16:36:10,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:10" (3/3) ... [2022-04-18 16:36:10,439 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons.wvr.c [2022-04-18 16:36:10,444 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 16:36:10,444 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 16:36:10,445 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2022-04-18 16:36:10,445 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 16:36:10,533 INFO L135 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-04-18 16:36:10,564 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 16:36:10,570 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 16:36:10,570 INFO L341 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2022-04-18 16:36:10,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 251 places, 252 transitions, 528 flow [2022-04-18 16:36:10,664 INFO L129 PetriNetUnfolder]: 11/249 cut-off events. [2022-04-18 16:36:10,664 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 16:36:10,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 249 events. 11/249 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 262 event pairs, 0 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 195. Up to 3 conditions per place. [2022-04-18 16:36:10,670 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 252 transitions, 528 flow [2022-04-18 16:36:10,678 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 229 transitions, 476 flow [2022-04-18 16:36:10,687 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2022-04-18 16:36:10,687 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-04-18 16:36:10,688 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:10,688 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 16:36:10,689 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2022-04-18 16:36:10,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:10,694 INFO L85 PathProgramCache]: Analyzing trace with hash -570171162, now seen corresponding path program 1 times [2022-04-18 16:36:10,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:10,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308498858] [2022-04-18 16:36:10,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:10,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:10,843 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 16:36:10,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:10,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308498858] [2022-04-18 16:36:10,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308498858] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:10,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:10,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:10,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443606617] [2022-04-18 16:36:10,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:10,853 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:10,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:10,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:10,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:10,876 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 252 [2022-04-18 16:36:10,880 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 229 transitions, 476 flow. Second operand has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 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 16:36:10,882 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:10,882 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 252 [2022-04-18 16:36:10,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:11,025 INFO L129 PetriNetUnfolder]: 138/520 cut-off events. [2022-04-18 16:36:11,025 INFO L130 PetriNetUnfolder]: For 94/131 co-relation queries the response was YES. [2022-04-18 16:36:11,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 520 events. 138/520 cut-off events. For 94/131 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2144 event pairs, 107 based on Foata normal form. 37/484 useless extension candidates. Maximal degree in co-relation 607. Up to 223 conditions per place. [2022-04-18 16:36:11,031 INFO L132 encePairwiseOnDemand]: 217/252 looper letters, 22 selfloop transitions, 2 changer transitions 3/196 dead transitions. [2022-04-18 16:36:11,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 196 transitions, 458 flow [2022-04-18 16:36:11,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:11,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:11,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 636 transitions. [2022-04-18 16:36:11,045 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8412698412698413 [2022-04-18 16:36:11,046 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 636 transitions. [2022-04-18 16:36:11,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 636 transitions. [2022-04-18 16:36:11,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:11,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 636 transitions. [2022-04-18 16:36:11,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 212.0) internal successors, (636), 3 states have internal predecessors, (636), 0 states have call successors, (0), 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 16:36:11,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,061 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,062 INFO L186 Difference]: Start difference. First operand has 229 places, 229 transitions, 476 flow. Second operand 3 states and 636 transitions. [2022-04-18 16:36:11,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 196 transitions, 458 flow [2022-04-18 16:36:11,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 196 transitions, 446 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-04-18 16:36:11,069 INFO L242 Difference]: Finished difference. Result has 198 places, 193 transitions, 396 flow [2022-04-18 16:36:11,071 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=198, PETRI_TRANSITIONS=193} [2022-04-18 16:36:11,074 INFO L335 CegarLoopForPetriNet]: 229 programPoint places, -31 predicate places. [2022-04-18 16:36:11,075 INFO L478 AbstractCegarLoop]: Abstraction has has 198 places, 193 transitions, 396 flow [2022-04-18 16:36:11,081 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 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 16:36:11,082 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:11,082 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 16:36:11,082 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 16:36:11,083 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2022-04-18 16:36:11,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:11,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1079955918, now seen corresponding path program 1 times [2022-04-18 16:36:11,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:11,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929663854] [2022-04-18 16:36:11,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:11,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:11,136 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 16:36:11,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:11,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929663854] [2022-04-18 16:36:11,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929663854] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:11,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:11,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:11,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118346911] [2022-04-18 16:36:11,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:11,141 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:11,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:11,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:11,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:11,147 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 252 [2022-04-18 16:36:11,148 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 193 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 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 16:36:11,148 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:11,148 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 252 [2022-04-18 16:36:11,148 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:11,217 INFO L129 PetriNetUnfolder]: 91/397 cut-off events. [2022-04-18 16:36:11,218 INFO L130 PetriNetUnfolder]: For 19/42 co-relation queries the response was YES. [2022-04-18 16:36:11,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 397 events. 91/397 cut-off events. For 19/42 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1273 event pairs, 53 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 525. Up to 141 conditions per place. [2022-04-18 16:36:11,220 INFO L132 encePairwiseOnDemand]: 249/252 looper letters, 19 selfloop transitions, 2 changer transitions 0/192 dead transitions. [2022-04-18 16:36:11,221 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 192 transitions, 436 flow [2022-04-18 16:36:11,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:11,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:11,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2022-04-18 16:36:11,222 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8068783068783069 [2022-04-18 16:36:11,222 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 610 transitions. [2022-04-18 16:36:11,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 610 transitions. [2022-04-18 16:36:11,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:11,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 610 transitions. [2022-04-18 16:36:11,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 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 16:36:11,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,226 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,226 INFO L186 Difference]: Start difference. First operand has 198 places, 193 transitions, 396 flow. Second operand 3 states and 610 transitions. [2022-04-18 16:36:11,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 192 transitions, 436 flow [2022-04-18 16:36:11,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 192 transitions, 432 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:11,233 INFO L242 Difference]: Finished difference. Result has 194 places, 192 transitions, 394 flow [2022-04-18 16:36:11,234 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=394, PETRI_PLACES=194, PETRI_TRANSITIONS=192} [2022-04-18 16:36:11,234 INFO L335 CegarLoopForPetriNet]: 229 programPoint places, -35 predicate places. [2022-04-18 16:36:11,234 INFO L478 AbstractCegarLoop]: Abstraction has has 194 places, 192 transitions, 394 flow [2022-04-18 16:36:11,235 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 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 16:36:11,235 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:11,235 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 16:36:11,235 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 16:36:11,235 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2022-04-18 16:36:11,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:11,236 INFO L85 PathProgramCache]: Analyzing trace with hash 116854116, now seen corresponding path program 1 times [2022-04-18 16:36:11,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:11,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309768466] [2022-04-18 16:36:11,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:11,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:11,287 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 16:36:11,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:11,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309768466] [2022-04-18 16:36:11,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309768466] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:11,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:11,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:11,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070841850] [2022-04-18 16:36:11,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:11,290 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:11,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:11,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:11,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:11,291 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 252 [2022-04-18 16:36:11,292 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 192 transitions, 394 flow. Second operand has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 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 16:36:11,292 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:11,292 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 252 [2022-04-18 16:36:11,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:11,349 INFO L129 PetriNetUnfolder]: 91/396 cut-off events. [2022-04-18 16:36:11,349 INFO L130 PetriNetUnfolder]: For 19/42 co-relation queries the response was YES. [2022-04-18 16:36:11,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 559 conditions, 396 events. 91/396 cut-off events. For 19/42 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1272 event pairs, 53 based on Foata normal form. 0/349 useless extension candidates. Maximal degree in co-relation 517. Up to 141 conditions per place. [2022-04-18 16:36:11,375 INFO L132 encePairwiseOnDemand]: 249/252 looper letters, 19 selfloop transitions, 2 changer transitions 0/191 dead transitions. [2022-04-18 16:36:11,375 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 191 transitions, 434 flow [2022-04-18 16:36:11,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:11,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:11,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2022-04-18 16:36:11,377 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8068783068783069 [2022-04-18 16:36:11,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 610 transitions. [2022-04-18 16:36:11,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 610 transitions. [2022-04-18 16:36:11,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:11,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 610 transitions. [2022-04-18 16:36:11,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 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 16:36:11,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,380 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,381 INFO L186 Difference]: Start difference. First operand has 194 places, 192 transitions, 394 flow. Second operand 3 states and 610 transitions. [2022-04-18 16:36:11,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 191 transitions, 434 flow [2022-04-18 16:36:11,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 191 transitions, 430 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:11,383 INFO L242 Difference]: Finished difference. Result has 193 places, 191 transitions, 392 flow [2022-04-18 16:36:11,384 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=193, PETRI_TRANSITIONS=191} [2022-04-18 16:36:11,386 INFO L335 CegarLoopForPetriNet]: 229 programPoint places, -36 predicate places. [2022-04-18 16:36:11,386 INFO L478 AbstractCegarLoop]: Abstraction has has 193 places, 191 transitions, 392 flow [2022-04-18 16:36:11,386 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 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 16:36:11,386 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:11,386 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] [2022-04-18 16:36:11,387 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 16:36:11,388 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2022-04-18 16:36:11,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:11,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1908537597, now seen corresponding path program 1 times [2022-04-18 16:36:11,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:11,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828092656] [2022-04-18 16:36:11,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:11,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:11,440 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 16:36:11,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:11,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828092656] [2022-04-18 16:36:11,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828092656] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:11,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:11,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:11,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148009437] [2022-04-18 16:36:11,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:11,442 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:11,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:11,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:11,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:11,443 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 252 [2022-04-18 16:36:11,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 191 transitions, 392 flow. Second operand has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 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 16:36:11,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:11,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 252 [2022-04-18 16:36:11,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:11,510 INFO L129 PetriNetUnfolder]: 111/468 cut-off events. [2022-04-18 16:36:11,511 INFO L130 PetriNetUnfolder]: For 27/54 co-relation queries the response was YES. [2022-04-18 16:36:11,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 468 events. 111/468 cut-off events. For 27/54 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1699 event pairs, 23 based on Foata normal form. 1/412 useless extension candidates. Maximal degree in co-relation 615. Up to 111 conditions per place. [2022-04-18 16:36:11,514 INFO L132 encePairwiseOnDemand]: 249/252 looper letters, 23 selfloop transitions, 2 changer transitions 0/198 dead transitions. [2022-04-18 16:36:11,514 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 198 transitions, 460 flow [2022-04-18 16:36:11,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:11,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:11,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 623 transitions. [2022-04-18 16:36:11,519 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8240740740740741 [2022-04-18 16:36:11,519 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 623 transitions. [2022-04-18 16:36:11,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 623 transitions. [2022-04-18 16:36:11,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:11,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 623 transitions. [2022-04-18 16:36:11,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 207.66666666666666) internal successors, (623), 3 states have internal predecessors, (623), 0 states have call successors, (0), 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 16:36:11,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,522 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,522 INFO L186 Difference]: Start difference. First operand has 193 places, 191 transitions, 392 flow. Second operand 3 states and 623 transitions. [2022-04-18 16:36:11,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 198 transitions, 460 flow [2022-04-18 16:36:11,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 198 transitions, 456 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:11,527 INFO L242 Difference]: Finished difference. Result has 193 places, 191 transitions, 396 flow [2022-04-18 16:36:11,527 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=193, PETRI_TRANSITIONS=191} [2022-04-18 16:36:11,529 INFO L335 CegarLoopForPetriNet]: 229 programPoint places, -36 predicate places. [2022-04-18 16:36:11,529 INFO L478 AbstractCegarLoop]: Abstraction has has 193 places, 191 transitions, 396 flow [2022-04-18 16:36:11,530 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 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 16:36:11,530 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:11,530 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] [2022-04-18 16:36:11,530 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 16:36:11,530 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2022-04-18 16:36:11,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:11,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1598375624, now seen corresponding path program 1 times [2022-04-18 16:36:11,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:11,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551815045] [2022-04-18 16:36:11,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:11,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:11,580 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 16:36:11,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:11,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551815045] [2022-04-18 16:36:11,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551815045] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:11,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:11,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:11,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788085816] [2022-04-18 16:36:11,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:11,582 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:11,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:11,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:11,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:11,584 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 252 [2022-04-18 16:36:11,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 191 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 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 16:36:11,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:11,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 252 [2022-04-18 16:36:11,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:11,651 INFO L129 PetriNetUnfolder]: 112/478 cut-off events. [2022-04-18 16:36:11,652 INFO L130 PetriNetUnfolder]: For 49/77 co-relation queries the response was YES. [2022-04-18 16:36:11,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 478 events. 112/478 cut-off events. For 49/77 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1830 event pairs, 69 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 327. Up to 173 conditions per place. [2022-04-18 16:36:11,654 INFO L132 encePairwiseOnDemand]: 249/252 looper letters, 17 selfloop transitions, 2 changer transitions 0/190 dead transitions. [2022-04-18 16:36:11,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 190 transitions, 432 flow [2022-04-18 16:36:11,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:11,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:11,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 616 transitions. [2022-04-18 16:36:11,656 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2022-04-18 16:36:11,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 616 transitions. [2022-04-18 16:36:11,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 616 transitions. [2022-04-18 16:36:11,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:11,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 616 transitions. [2022-04-18 16:36:11,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 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 16:36:11,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,665 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,665 INFO L186 Difference]: Start difference. First operand has 193 places, 191 transitions, 396 flow. Second operand 3 states and 616 transitions. [2022-04-18 16:36:11,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 190 transitions, 432 flow [2022-04-18 16:36:11,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 190 transitions, 430 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:11,668 INFO L242 Difference]: Finished difference. Result has 193 places, 190 transitions, 396 flow [2022-04-18 16:36:11,669 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=193, PETRI_TRANSITIONS=190} [2022-04-18 16:36:11,670 INFO L335 CegarLoopForPetriNet]: 229 programPoint places, -36 predicate places. [2022-04-18 16:36:11,670 INFO L478 AbstractCegarLoop]: Abstraction has has 193 places, 190 transitions, 396 flow [2022-04-18 16:36:11,671 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 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 16:36:11,671 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:11,671 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] [2022-04-18 16:36:11,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 16:36:11,672 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2022-04-18 16:36:11,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:11,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1590207467, now seen corresponding path program 1 times [2022-04-18 16:36:11,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:11,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782322049] [2022-04-18 16:36:11,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:11,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:11,700 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 16:36:11,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:11,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782322049] [2022-04-18 16:36:11,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782322049] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:11,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:11,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:11,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065306707] [2022-04-18 16:36:11,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:11,701 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:11,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:11,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:11,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:11,703 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 252 [2022-04-18 16:36:11,703 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 190 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 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 16:36:11,704 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:11,704 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 252 [2022-04-18 16:36:11,704 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:11,759 INFO L129 PetriNetUnfolder]: 112/477 cut-off events. [2022-04-18 16:36:11,759 INFO L130 PetriNetUnfolder]: For 48/76 co-relation queries the response was YES. [2022-04-18 16:36:11,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 703 conditions, 477 events. 112/477 cut-off events. For 48/76 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1829 event pairs, 69 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 645. Up to 177 conditions per place. [2022-04-18 16:36:11,762 INFO L132 encePairwiseOnDemand]: 249/252 looper letters, 19 selfloop transitions, 2 changer transitions 0/189 dead transitions. [2022-04-18 16:36:11,762 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 189 transitions, 436 flow [2022-04-18 16:36:11,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:11,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:11,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 609 transitions. [2022-04-18 16:36:11,764 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8055555555555556 [2022-04-18 16:36:11,764 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 609 transitions. [2022-04-18 16:36:11,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 609 transitions. [2022-04-18 16:36:11,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:11,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 609 transitions. [2022-04-18 16:36:11,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 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 16:36:11,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,767 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,767 INFO L186 Difference]: Start difference. First operand has 193 places, 190 transitions, 396 flow. Second operand 3 states and 609 transitions. [2022-04-18 16:36:11,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 189 transitions, 436 flow [2022-04-18 16:36:11,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 189 transitions, 432 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:11,770 INFO L242 Difference]: Finished difference. Result has 192 places, 189 transitions, 394 flow [2022-04-18 16:36:11,770 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=394, PETRI_PLACES=192, PETRI_TRANSITIONS=189} [2022-04-18 16:36:11,771 INFO L335 CegarLoopForPetriNet]: 229 programPoint places, -37 predicate places. [2022-04-18 16:36:11,771 INFO L478 AbstractCegarLoop]: Abstraction has has 192 places, 189 transitions, 394 flow [2022-04-18 16:36:11,771 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 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 16:36:11,771 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:11,772 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] [2022-04-18 16:36:11,772 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 16:36:11,772 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2022-04-18 16:36:11,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:11,772 INFO L85 PathProgramCache]: Analyzing trace with hash 382050159, now seen corresponding path program 1 times [2022-04-18 16:36:11,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:11,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947642335] [2022-04-18 16:36:11,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:11,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:11,791 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 16:36:11,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:11,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947642335] [2022-04-18 16:36:11,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947642335] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:11,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:11,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:11,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728566415] [2022-04-18 16:36:11,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:11,793 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:11,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:11,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:11,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:11,794 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 252 [2022-04-18 16:36:11,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 189 transitions, 394 flow. Second operand has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 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 16:36:11,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:11,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 252 [2022-04-18 16:36:11,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:11,844 INFO L129 PetriNetUnfolder]: 112/476 cut-off events. [2022-04-18 16:36:11,845 INFO L130 PetriNetUnfolder]: For 48/76 co-relation queries the response was YES. [2022-04-18 16:36:11,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 697 conditions, 476 events. 112/476 cut-off events. For 48/76 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1825 event pairs, 69 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 633. Up to 171 conditions per place. [2022-04-18 16:36:11,848 INFO L132 encePairwiseOnDemand]: 250/252 looper letters, 17 selfloop transitions, 1 changer transitions 0/188 dead transitions. [2022-04-18 16:36:11,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 188 transitions, 428 flow [2022-04-18 16:36:11,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:11,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:11,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 615 transitions. [2022-04-18 16:36:11,849 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8134920634920635 [2022-04-18 16:36:11,850 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 615 transitions. [2022-04-18 16:36:11,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 615 transitions. [2022-04-18 16:36:11,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:11,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 615 transitions. [2022-04-18 16:36:11,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 0 states have call successors, (0), 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 16:36:11,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,852 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,853 INFO L186 Difference]: Start difference. First operand has 192 places, 189 transitions, 394 flow. Second operand 3 states and 615 transitions. [2022-04-18 16:36:11,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 188 transitions, 428 flow [2022-04-18 16:36:11,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 188 transitions, 424 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:11,855 INFO L242 Difference]: Finished difference. Result has 191 places, 188 transitions, 390 flow [2022-04-18 16:36:11,856 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=390, PETRI_PLACES=191, PETRI_TRANSITIONS=188} [2022-04-18 16:36:11,856 INFO L335 CegarLoopForPetriNet]: 229 programPoint places, -38 predicate places. [2022-04-18 16:36:11,856 INFO L478 AbstractCegarLoop]: Abstraction has has 191 places, 188 transitions, 390 flow [2022-04-18 16:36:11,857 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 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 16:36:11,857 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:11,857 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] [2022-04-18 16:36:11,857 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 16:36:11,857 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2022-04-18 16:36:11,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:11,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1185192579, now seen corresponding path program 1 times [2022-04-18 16:36:11,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:11,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280371266] [2022-04-18 16:36:11,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:11,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:11,886 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 16:36:11,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:11,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280371266] [2022-04-18 16:36:11,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280371266] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:11,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:11,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:11,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363041727] [2022-04-18 16:36:11,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:11,888 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:11,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:11,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:11,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:11,889 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 252 [2022-04-18 16:36:11,889 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 188 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 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 16:36:11,889 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:11,889 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 252 [2022-04-18 16:36:11,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:11,957 INFO L129 PetriNetUnfolder]: 112/475 cut-off events. [2022-04-18 16:36:11,958 INFO L130 PetriNetUnfolder]: For 48/76 co-relation queries the response was YES. [2022-04-18 16:36:11,959 INFO L84 FinitePrefix]: Finished finitePrefix Result has 696 conditions, 475 events. 112/475 cut-off events. For 48/76 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1824 event pairs, 69 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 633. Up to 173 conditions per place. [2022-04-18 16:36:11,960 INFO L132 encePairwiseOnDemand]: 249/252 looper letters, 17 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2022-04-18 16:36:11,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 187 transitions, 426 flow [2022-04-18 16:36:11,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:11,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:11,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 616 transitions. [2022-04-18 16:36:11,962 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2022-04-18 16:36:11,962 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 616 transitions. [2022-04-18 16:36:11,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 616 transitions. [2022-04-18 16:36:11,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:11,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 616 transitions. [2022-04-18 16:36:11,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 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 16:36:11,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,964 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:11,965 INFO L186 Difference]: Start difference. First operand has 191 places, 188 transitions, 390 flow. Second operand 3 states and 616 transitions. [2022-04-18 16:36:11,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 187 transitions, 426 flow [2022-04-18 16:36:11,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 187 transitions, 425 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:11,967 INFO L242 Difference]: Finished difference. Result has 191 places, 187 transitions, 391 flow [2022-04-18 16:36:11,967 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=391, PETRI_PLACES=191, PETRI_TRANSITIONS=187} [2022-04-18 16:36:11,968 INFO L335 CegarLoopForPetriNet]: 229 programPoint places, -38 predicate places. [2022-04-18 16:36:11,968 INFO L478 AbstractCegarLoop]: Abstraction has has 191 places, 187 transitions, 391 flow [2022-04-18 16:36:11,968 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 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 16:36:11,968 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:11,969 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] [2022-04-18 16:36:11,969 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 16:36:11,969 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2022-04-18 16:36:11,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:11,969 INFO L85 PathProgramCache]: Analyzing trace with hash 799950541, now seen corresponding path program 1 times [2022-04-18 16:36:11,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:11,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203914626] [2022-04-18 16:36:11,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:11,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:12,078 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 16:36:12,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:12,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203914626] [2022-04-18 16:36:12,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203914626] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:12,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:12,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:12,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259995302] [2022-04-18 16:36:12,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:12,080 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:12,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:12,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:12,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:12,081 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 252 [2022-04-18 16:36:12,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 187 transitions, 391 flow. Second operand has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 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 16:36:12,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:12,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 252 [2022-04-18 16:36:12,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:12,273 INFO L129 PetriNetUnfolder]: 665/1329 cut-off events. [2022-04-18 16:36:12,274 INFO L130 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2022-04-18 16:36:12,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2475 conditions, 1329 events. 665/1329 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6268 event pairs, 513 based on Foata normal form. 0/1233 useless extension candidates. Maximal degree in co-relation 2413. Up to 997 conditions per place. [2022-04-18 16:36:12,281 INFO L132 encePairwiseOnDemand]: 246/252 looper letters, 43 selfloop transitions, 5 changer transitions 0/186 dead transitions. [2022-04-18 16:36:12,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 186 transitions, 485 flow [2022-04-18 16:36:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:12,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:12,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1068 transitions. [2022-04-18 16:36:12,283 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7063492063492064 [2022-04-18 16:36:12,283 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1068 transitions. [2022-04-18 16:36:12,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1068 transitions. [2022-04-18 16:36:12,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:12,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1068 transitions. [2022-04-18 16:36:12,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 0 states have call successors, (0), 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 16:36:12,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 252.0) internal successors, (1764), 7 states have internal predecessors, (1764), 0 states have call successors, (0), 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 16:36:12,289 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 252.0) internal successors, (1764), 7 states have internal predecessors, (1764), 0 states have call successors, (0), 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 16:36:12,289 INFO L186 Difference]: Start difference. First operand has 191 places, 187 transitions, 391 flow. Second operand 6 states and 1068 transitions. [2022-04-18 16:36:12,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 186 transitions, 485 flow [2022-04-18 16:36:12,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 186 transitions, 481 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-04-18 16:36:12,292 INFO L242 Difference]: Finished difference. Result has 193 places, 186 transitions, 395 flow [2022-04-18 16:36:12,292 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=395, PETRI_PLACES=193, PETRI_TRANSITIONS=186} [2022-04-18 16:36:12,293 INFO L335 CegarLoopForPetriNet]: 229 programPoint places, -36 predicate places. [2022-04-18 16:36:12,293 INFO L478 AbstractCegarLoop]: Abstraction has has 193 places, 186 transitions, 395 flow [2022-04-18 16:36:12,294 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 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 16:36:12,294 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:12,294 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] [2022-04-18 16:36:12,294 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 16:36:12,294 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2022-04-18 16:36:12,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:12,295 INFO L85 PathProgramCache]: Analyzing trace with hash -678802683, now seen corresponding path program 1 times [2022-04-18 16:36:12,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:12,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261114682] [2022-04-18 16:36:12,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:12,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:12,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:12,335 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 16:36:12,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:12,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261114682] [2022-04-18 16:36:12,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261114682] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:12,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:12,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:12,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591519995] [2022-04-18 16:36:12,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:12,339 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:12,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:12,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:12,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:12,341 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 252 [2022-04-18 16:36:12,341 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 186 transitions, 395 flow. Second operand has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 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 16:36:12,341 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:12,341 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 252 [2022-04-18 16:36:12,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:12,400 INFO L129 PetriNetUnfolder]: 143/577 cut-off events. [2022-04-18 16:36:12,401 INFO L130 PetriNetUnfolder]: For 50/86 co-relation queries the response was YES. [2022-04-18 16:36:12,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 885 conditions, 577 events. 143/577 cut-off events. For 50/86 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2648 event pairs, 115 based on Foata normal form. 0/519 useless extension candidates. Maximal degree in co-relation 866. Up to 230 conditions per place. [2022-04-18 16:36:12,404 INFO L132 encePairwiseOnDemand]: 249/252 looper letters, 19 selfloop transitions, 1 changer transitions 0/184 dead transitions. [2022-04-18 16:36:12,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 184 transitions, 431 flow [2022-04-18 16:36:12,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:12,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:12,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 609 transitions. [2022-04-18 16:36:12,406 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8055555555555556 [2022-04-18 16:36:12,406 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 609 transitions. [2022-04-18 16:36:12,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 609 transitions. [2022-04-18 16:36:12,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:12,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 609 transitions. [2022-04-18 16:36:12,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 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 16:36:12,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:12,409 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:12,409 INFO L186 Difference]: Start difference. First operand has 193 places, 186 transitions, 395 flow. Second operand 3 states and 609 transitions. [2022-04-18 16:36:12,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 184 transitions, 431 flow [2022-04-18 16:36:12,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 184 transitions, 421 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-04-18 16:36:12,415 INFO L242 Difference]: Finished difference. Result has 188 places, 184 transitions, 383 flow [2022-04-18 16:36:12,416 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=383, PETRI_PLACES=188, PETRI_TRANSITIONS=184} [2022-04-18 16:36:12,417 INFO L335 CegarLoopForPetriNet]: 229 programPoint places, -41 predicate places. [2022-04-18 16:36:12,417 INFO L478 AbstractCegarLoop]: Abstraction has has 188 places, 184 transitions, 383 flow [2022-04-18 16:36:12,418 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 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 16:36:12,418 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:12,418 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] [2022-04-18 16:36:12,418 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 16:36:12,418 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2022-04-18 16:36:12,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:12,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1526211071, now seen corresponding path program 1 times [2022-04-18 16:36:12,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:12,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163918343] [2022-04-18 16:36:12,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:12,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:12,513 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 16:36:12,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:12,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163918343] [2022-04-18 16:36:12,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163918343] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:12,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:12,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:12,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94978439] [2022-04-18 16:36:12,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:12,515 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:12,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:12,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:12,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:12,516 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 252 [2022-04-18 16:36:12,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 184 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 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 16:36:12,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:12,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 252 [2022-04-18 16:36:12,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:12,808 INFO L129 PetriNetUnfolder]: 665/1326 cut-off events. [2022-04-18 16:36:12,809 INFO L130 PetriNetUnfolder]: For 118/118 co-relation queries the response was YES. [2022-04-18 16:36:12,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2463 conditions, 1326 events. 665/1326 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 6243 event pairs, 113 based on Foata normal form. 0/1266 useless extension candidates. Maximal degree in co-relation 2399. Up to 439 conditions per place. [2022-04-18 16:36:12,816 INFO L132 encePairwiseOnDemand]: 247/252 looper letters, 68 selfloop transitions, 4 changer transitions 0/215 dead transitions. [2022-04-18 16:36:12,816 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 215 transitions, 605 flow [2022-04-18 16:36:12,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:12,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:12,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1118 transitions. [2022-04-18 16:36:12,818 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7394179894179894 [2022-04-18 16:36:12,819 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1118 transitions. [2022-04-18 16:36:12,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1118 transitions. [2022-04-18 16:36:12,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:12,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1118 transitions. [2022-04-18 16:36:12,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 186.33333333333334) internal successors, (1118), 6 states have internal predecessors, (1118), 0 states have call successors, (0), 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 16:36:12,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 252.0) internal successors, (1764), 7 states have internal predecessors, (1764), 0 states have call successors, (0), 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 16:36:12,822 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 252.0) internal successors, (1764), 7 states have internal predecessors, (1764), 0 states have call successors, (0), 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 16:36:12,823 INFO L186 Difference]: Start difference. First operand has 188 places, 184 transitions, 383 flow. Second operand 6 states and 1118 transitions. [2022-04-18 16:36:12,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 215 transitions, 605 flow [2022-04-18 16:36:12,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 215 transitions, 604 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:12,825 INFO L242 Difference]: Finished difference. Result has 191 places, 183 transitions, 388 flow [2022-04-18 16:36:12,826 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=388, PETRI_PLACES=191, PETRI_TRANSITIONS=183} [2022-04-18 16:36:12,826 INFO L335 CegarLoopForPetriNet]: 229 programPoint places, -38 predicate places. [2022-04-18 16:36:12,826 INFO L478 AbstractCegarLoop]: Abstraction has has 191 places, 183 transitions, 388 flow [2022-04-18 16:36:12,827 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 177.0) internal successors, (1062), 6 states have internal predecessors, (1062), 0 states have call successors, (0), 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 16:36:12,827 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:12,827 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 16:36:12,827 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 16:36:12,827 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2022-04-18 16:36:12,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:12,827 INFO L85 PathProgramCache]: Analyzing trace with hash 474357910, now seen corresponding path program 1 times [2022-04-18 16:36:12,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:12,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694329376] [2022-04-18 16:36:12,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:12,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:12,890 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 16:36:12,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:12,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694329376] [2022-04-18 16:36:12,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694329376] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:12,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:12,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:12,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458168415] [2022-04-18 16:36:12,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:12,891 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:12,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:12,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:12,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:12,892 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 252 [2022-04-18 16:36:12,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 183 transitions, 388 flow. Second operand has 6 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 0 states have call successors, (0), 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 16:36:12,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:12,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 252 [2022-04-18 16:36:12,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:13,104 INFO L129 PetriNetUnfolder]: 512/1122 cut-off events. [2022-04-18 16:36:13,104 INFO L130 PetriNetUnfolder]: For 163/163 co-relation queries the response was YES. [2022-04-18 16:36:13,107 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2191 conditions, 1122 events. 512/1122 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 5286 event pairs, 377 based on Foata normal form. 0/1082 useless extension candidates. Maximal degree in co-relation 2127. Up to 649 conditions per place. [2022-04-18 16:36:13,111 INFO L132 encePairwiseOnDemand]: 247/252 looper letters, 59 selfloop transitions, 4 changer transitions 0/206 dead transitions. [2022-04-18 16:36:13,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 206 transitions, 576 flow [2022-04-18 16:36:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:13,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:13,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1109 transitions. [2022-04-18 16:36:13,113 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7334656084656085 [2022-04-18 16:36:13,113 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1109 transitions. [2022-04-18 16:36:13,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1109 transitions. [2022-04-18 16:36:13,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:13,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1109 transitions. [2022-04-18 16:36:13,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.83333333333334) internal successors, (1109), 6 states have internal predecessors, (1109), 0 states have call successors, (0), 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 16:36:13,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 252.0) internal successors, (1764), 7 states have internal predecessors, (1764), 0 states have call successors, (0), 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 16:36:13,117 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 252.0) internal successors, (1764), 7 states have internal predecessors, (1764), 0 states have call successors, (0), 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 16:36:13,117 INFO L186 Difference]: Start difference. First operand has 191 places, 183 transitions, 388 flow. Second operand 6 states and 1109 transitions. [2022-04-18 16:36:13,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 206 transitions, 576 flow [2022-04-18 16:36:13,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 206 transitions, 569 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:13,121 INFO L242 Difference]: Finished difference. Result has 191 places, 182 transitions, 387 flow [2022-04-18 16:36:13,121 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=191, PETRI_TRANSITIONS=182} [2022-04-18 16:36:13,121 INFO L335 CegarLoopForPetriNet]: 229 programPoint places, -38 predicate places. [2022-04-18 16:36:13,121 INFO L478 AbstractCegarLoop]: Abstraction has has 191 places, 182 transitions, 387 flow [2022-04-18 16:36:13,122 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 0 states have call successors, (0), 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 16:36:13,122 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:13,122 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, 1, 1, 1, 1, 1] [2022-04-18 16:36:13,122 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 16:36:13,122 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2022-04-18 16:36:13,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:13,125 INFO L85 PathProgramCache]: Analyzing trace with hash 663732656, now seen corresponding path program 1 times [2022-04-18 16:36:13,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:13,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506550676] [2022-04-18 16:36:13,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:13,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:13,170 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 16:36:13,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:13,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506550676] [2022-04-18 16:36:13,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506550676] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:13,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:13,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 16:36:13,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832142168] [2022-04-18 16:36:13,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:13,171 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-18 16:36:13,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:13,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-18 16:36:13,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-18 16:36:13,172 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 252 [2022-04-18 16:36:13,173 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 182 transitions, 387 flow. Second operand has 4 states, 4 states have (on average 202.25) internal successors, (809), 4 states have internal predecessors, (809), 0 states have call successors, (0), 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 16:36:13,173 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:13,173 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 252 [2022-04-18 16:36:13,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:13,251 INFO L129 PetriNetUnfolder]: 188/600 cut-off events. [2022-04-18 16:36:13,251 INFO L130 PetriNetUnfolder]: For 56/78 co-relation queries the response was YES. [2022-04-18 16:36:13,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 979 conditions, 600 events. 188/600 cut-off events. For 56/78 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2638 event pairs, 26 based on Foata normal form. 1/546 useless extension candidates. Maximal degree in co-relation 918. Up to 115 conditions per place. [2022-04-18 16:36:13,255 INFO L132 encePairwiseOnDemand]: 247/252 looper letters, 35 selfloop transitions, 5 changer transitions 0/204 dead transitions. [2022-04-18 16:36:13,255 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 204 transitions, 523 flow [2022-04-18 16:36:13,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 16:36:13,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-04-18 16:36:13,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1039 transitions. [2022-04-18 16:36:13,256 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8246031746031746 [2022-04-18 16:36:13,257 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1039 transitions. [2022-04-18 16:36:13,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1039 transitions. [2022-04-18 16:36:13,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:13,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1039 transitions. [2022-04-18 16:36:13,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 207.8) internal successors, (1039), 5 states have internal predecessors, (1039), 0 states have call successors, (0), 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 16:36:13,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 252.0) internal successors, (1512), 6 states have internal predecessors, (1512), 0 states have call successors, (0), 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 16:36:13,260 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 252.0) internal successors, (1512), 6 states have internal predecessors, (1512), 0 states have call successors, (0), 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 16:36:13,260 INFO L186 Difference]: Start difference. First operand has 191 places, 182 transitions, 387 flow. Second operand 5 states and 1039 transitions. [2022-04-18 16:36:13,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 204 transitions, 523 flow [2022-04-18 16:36:13,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 204 transitions, 516 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:13,263 INFO L242 Difference]: Finished difference. Result has 194 places, 185 transitions, 411 flow [2022-04-18 16:36:13,263 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=411, PETRI_PLACES=194, PETRI_TRANSITIONS=185} [2022-04-18 16:36:13,264 INFO L335 CegarLoopForPetriNet]: 229 programPoint places, -35 predicate places. [2022-04-18 16:36:13,264 INFO L478 AbstractCegarLoop]: Abstraction has has 194 places, 185 transitions, 411 flow [2022-04-18 16:36:13,264 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 202.25) internal successors, (809), 4 states have internal predecessors, (809), 0 states have call successors, (0), 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 16:36:13,264 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:13,264 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 16:36:13,265 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-18 16:36:13,265 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2022-04-18 16:36:13,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:13,265 INFO L85 PathProgramCache]: Analyzing trace with hash 195605610, now seen corresponding path program 1 times [2022-04-18 16:36:13,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:13,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509643324] [2022-04-18 16:36:13,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:13,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:13,344 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 16:36:13,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:13,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509643324] [2022-04-18 16:36:13,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509643324] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:13,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:13,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-18 16:36:13,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847874527] [2022-04-18 16:36:13,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:13,345 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-18 16:36:13,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:13,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-18 16:36:13,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-04-18 16:36:13,346 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 252 [2022-04-18 16:36:13,347 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 185 transitions, 411 flow. Second operand has 6 states, 6 states have (on average 179.33333333333334) internal successors, (1076), 6 states have internal predecessors, (1076), 0 states have call successors, (0), 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 16:36:13,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:13,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 252 [2022-04-18 16:36:13,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:13,522 INFO L129 PetriNetUnfolder]: 750/1519 cut-off events. [2022-04-18 16:36:13,522 INFO L130 PetriNetUnfolder]: For 610/610 co-relation queries the response was YES. [2022-04-18 16:36:13,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3358 conditions, 1519 events. 750/1519 cut-off events. For 610/610 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 7986 event pairs, 533 based on Foata normal form. 0/1476 useless extension candidates. Maximal degree in co-relation 3290. Up to 1124 conditions per place. [2022-04-18 16:36:13,533 INFO L132 encePairwiseOnDemand]: 247/252 looper letters, 37 selfloop transitions, 4 changer transitions 0/184 dead transitions. [2022-04-18 16:36:13,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 184 transitions, 491 flow [2022-04-18 16:36:13,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-18 16:36:13,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-04-18 16:36:13,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1088 transitions. [2022-04-18 16:36:13,535 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.7195767195767195 [2022-04-18 16:36:13,535 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1088 transitions. [2022-04-18 16:36:13,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1088 transitions. [2022-04-18 16:36:13,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:13,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1088 transitions. [2022-04-18 16:36:13,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.33333333333334) internal successors, (1088), 6 states have internal predecessors, (1088), 0 states have call successors, (0), 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 16:36:13,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 252.0) internal successors, (1764), 7 states have internal predecessors, (1764), 0 states have call successors, (0), 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 16:36:13,539 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 252.0) internal successors, (1764), 7 states have internal predecessors, (1764), 0 states have call successors, (0), 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 16:36:13,539 INFO L186 Difference]: Start difference. First operand has 194 places, 185 transitions, 411 flow. Second operand 6 states and 1088 transitions. [2022-04-18 16:36:13,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 184 transitions, 491 flow [2022-04-18 16:36:13,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 184 transitions, 488 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-04-18 16:36:13,543 INFO L242 Difference]: Finished difference. Result has 197 places, 184 transitions, 414 flow [2022-04-18 16:36:13,543 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=414, PETRI_PLACES=197, PETRI_TRANSITIONS=184} [2022-04-18 16:36:13,543 INFO L335 CegarLoopForPetriNet]: 229 programPoint places, -32 predicate places. [2022-04-18 16:36:13,544 INFO L478 AbstractCegarLoop]: Abstraction has has 197 places, 184 transitions, 414 flow [2022-04-18 16:36:13,544 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.33333333333334) internal successors, (1076), 6 states have internal predecessors, (1076), 0 states have call successors, (0), 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 16:36:13,544 INFO L247 CegarLoopForPetriNet]: Found error trace [2022-04-18 16:36:13,544 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] [2022-04-18 16:36:13,544 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-18 16:36:13,544 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2022-04-18 16:36:13,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 16:36:13,545 INFO L85 PathProgramCache]: Analyzing trace with hash 247765534, now seen corresponding path program 1 times [2022-04-18 16:36:13,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-18 16:36:13,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289340320] [2022-04-18 16:36:13,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 16:36:13,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 16:36:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 16:36:13,585 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 16:36:13,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-18 16:36:13,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289340320] [2022-04-18 16:36:13,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289340320] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 16:36:13,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 16:36:13,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 16:36:13,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096681026] [2022-04-18 16:36:13,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 16:36:13,586 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 16:36:13,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-18 16:36:13,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 16:36:13,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 16:36:13,587 INFO L502 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 252 [2022-04-18 16:36:13,588 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 184 transitions, 414 flow. Second operand has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 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 16:36:13,588 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-04-18 16:36:13,588 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 252 [2022-04-18 16:36:13,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-04-18 16:36:13,653 INFO L129 PetriNetUnfolder]: 149/598 cut-off events. [2022-04-18 16:36:13,653 INFO L130 PetriNetUnfolder]: For 143/186 co-relation queries the response was YES. [2022-04-18 16:36:13,655 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1012 conditions, 598 events. 149/598 cut-off events. For 143/186 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2707 event pairs, 23 based on Foata normal form. 3/558 useless extension candidates. Maximal degree in co-relation 977. Up to 184 conditions per place. [2022-04-18 16:36:13,655 INFO L132 encePairwiseOnDemand]: 247/252 looper letters, 0 selfloop transitions, 0 changer transitions 195/195 dead transitions. [2022-04-18 16:36:13,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 195 transitions, 517 flow [2022-04-18 16:36:13,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 16:36:13,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-04-18 16:36:13,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 624 transitions. [2022-04-18 16:36:13,657 INFO L547 CegarLoopForPetriNet]: DFA transition density 0.8253968253968254 [2022-04-18 16:36:13,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 624 transitions. [2022-04-18 16:36:13,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 624 transitions. [2022-04-18 16:36:13,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-04-18 16:36:13,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 624 transitions. [2022-04-18 16:36:13,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 0 states have call successors, (0), 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 16:36:13,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:13,665 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 252.0) internal successors, (1008), 4 states have internal predecessors, (1008), 0 states have call successors, (0), 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 16:36:13,665 INFO L186 Difference]: Start difference. First operand has 197 places, 184 transitions, 414 flow. Second operand 3 states and 624 transitions. [2022-04-18 16:36:13,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 195 transitions, 517 flow [2022-04-18 16:36:13,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 195 transitions, 510 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-04-18 16:36:13,668 INFO L242 Difference]: Finished difference. Result has 194 places, 0 transitions, 0 flow [2022-04-18 16:36:13,668 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=252, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=194, PETRI_TRANSITIONS=0} [2022-04-18 16:36:13,668 INFO L335 CegarLoopForPetriNet]: 229 programPoint places, -35 predicate places. [2022-04-18 16:36:13,668 INFO L478 AbstractCegarLoop]: Abstraction has has 194 places, 0 transitions, 0 flow [2022-04-18 16:36:13,669 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 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 16:36:13,670 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (70 of 71 remaining) [2022-04-18 16:36:13,671 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (69 of 71 remaining) [2022-04-18 16:36:13,671 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (68 of 71 remaining) [2022-04-18 16:36:13,671 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (67 of 71 remaining) [2022-04-18 16:36:13,671 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (66 of 71 remaining) [2022-04-18 16:36:13,671 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (65 of 71 remaining) [2022-04-18 16:36:13,671 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (64 of 71 remaining) [2022-04-18 16:36:13,671 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (63 of 71 remaining) [2022-04-18 16:36:13,672 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (62 of 71 remaining) [2022-04-18 16:36:13,672 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (61 of 71 remaining) [2022-04-18 16:36:13,672 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (60 of 71 remaining) [2022-04-18 16:36:13,672 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (59 of 71 remaining) [2022-04-18 16:36:13,672 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (58 of 71 remaining) [2022-04-18 16:36:13,672 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (57 of 71 remaining) [2022-04-18 16:36:13,672 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (56 of 71 remaining) [2022-04-18 16:36:13,672 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (55 of 71 remaining) [2022-04-18 16:36:13,673 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (54 of 71 remaining) [2022-04-18 16:36:13,673 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (53 of 71 remaining) [2022-04-18 16:36:13,673 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (52 of 71 remaining) [2022-04-18 16:36:13,673 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (51 of 71 remaining) [2022-04-18 16:36:13,674 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (50 of 71 remaining) [2022-04-18 16:36:13,674 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (49 of 71 remaining) [2022-04-18 16:36:13,674 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (48 of 71 remaining) [2022-04-18 16:36:13,675 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (47 of 71 remaining) [2022-04-18 16:36:13,675 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (46 of 71 remaining) [2022-04-18 16:36:13,675 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (45 of 71 remaining) [2022-04-18 16:36:13,675 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (44 of 71 remaining) [2022-04-18 16:36:13,675 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (43 of 71 remaining) [2022-04-18 16:36:13,675 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (42 of 71 remaining) [2022-04-18 16:36:13,676 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (41 of 71 remaining) [2022-04-18 16:36:13,676 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (40 of 71 remaining) [2022-04-18 16:36:13,676 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 71 remaining) [2022-04-18 16:36:13,676 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 71 remaining) [2022-04-18 16:36:13,676 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 71 remaining) [2022-04-18 16:36:13,677 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (36 of 71 remaining) [2022-04-18 16:36:13,677 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (35 of 71 remaining) [2022-04-18 16:36:13,677 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (34 of 71 remaining) [2022-04-18 16:36:13,677 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (33 of 71 remaining) [2022-04-18 16:36:13,677 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (32 of 71 remaining) [2022-04-18 16:36:13,677 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (31 of 71 remaining) [2022-04-18 16:36:13,677 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (30 of 71 remaining) [2022-04-18 16:36:13,677 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 71 remaining) [2022-04-18 16:36:13,677 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 71 remaining) [2022-04-18 16:36:13,677 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (27 of 71 remaining) [2022-04-18 16:36:13,677 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (26 of 71 remaining) [2022-04-18 16:36:13,677 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (25 of 71 remaining) [2022-04-18 16:36:13,677 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (24 of 71 remaining) [2022-04-18 16:36:13,677 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (23 of 71 remaining) [2022-04-18 16:36:13,677 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (22 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (21 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (20 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (19 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (18 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (17 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (16 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (15 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (14 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (13 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (12 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (11 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (10 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (9 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (8 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (7 of 71 remaining) [2022-04-18 16:36:13,678 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (6 of 71 remaining) [2022-04-18 16:36:13,679 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (5 of 71 remaining) [2022-04-18 16:36:13,679 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (4 of 71 remaining) [2022-04-18 16:36:13,679 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (3 of 71 remaining) [2022-04-18 16:36:13,679 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (2 of 71 remaining) [2022-04-18 16:36:13,679 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (1 of 71 remaining) [2022-04-18 16:36:13,679 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (0 of 71 remaining) [2022-04-18 16:36:13,679 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-18 16:36:13,681 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 16:36:13,684 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 16:36:13,684 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 16:36:13,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:36:13 BasicIcfg [2022-04-18 16:36:13,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 16:36:13,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 16:36:13,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 16:36:13,687 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 16:36:13,687 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:36:10" (3/4) ... [2022-04-18 16:36:13,688 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 16:36:13,691 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-04-18 16:36:13,691 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-04-18 16:36:13,691 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-04-18 16:36:13,694 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-04-18 16:36:13,695 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 16:36:13,695 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 16:36:13,695 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 16:36:13,729 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-04-18 16:36:13,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 16:36:13,729 INFO L158 Benchmark]: Toolchain (without parser) took 4363.46ms. Allocated memory was 104.9MB in the beginning and 247.5MB in the end (delta: 142.6MB). Free memory was 73.6MB in the beginning and 175.5MB in the end (delta: -101.9MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2022-04-18 16:36:13,729 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 16:36:13,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.63ms. Allocated memory is still 104.9MB. Free memory was 73.3MB in the beginning and 78.0MB in the end (delta: -4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-04-18 16:36:13,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.42ms. Allocated memory is still 104.9MB. Free memory was 78.0MB in the beginning and 75.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 16:36:13,730 INFO L158 Benchmark]: Boogie Preprocessor took 35.57ms. Allocated memory is still 104.9MB. Free memory was 75.2MB in the beginning and 73.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:36:13,730 INFO L158 Benchmark]: RCFGBuilder took 712.25ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 73.1MB in the beginning and 87.1MB in the end (delta: -14.0MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2022-04-18 16:36:13,731 INFO L158 Benchmark]: TraceAbstraction took 3252.70ms. Allocated memory was 134.2MB in the beginning and 247.5MB in the end (delta: 113.2MB). Free memory was 86.9MB in the beginning and 179.6MB in the end (delta: -92.8MB). Peak memory consumption was 127.7MB. Max. memory is 16.1GB. [2022-04-18 16:36:13,731 INFO L158 Benchmark]: Witness Printer took 42.33ms. Allocated memory is still 247.5MB. Free memory was 179.6MB in the beginning and 175.5MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 16:36:13,733 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.63ms. Allocated memory is still 104.9MB. Free memory was 73.3MB in the beginning and 78.0MB in the end (delta: -4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.42ms. Allocated memory is still 104.9MB. Free memory was 78.0MB in the beginning and 75.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.57ms. Allocated memory is still 104.9MB. Free memory was 75.2MB in the beginning and 73.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 712.25ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 73.1MB in the beginning and 87.1MB in the end (delta: -14.0MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3252.70ms. Allocated memory was 134.2MB in the beginning and 247.5MB in the end (delta: 113.2MB). Free memory was 86.9MB in the beginning and 179.6MB in the end (delta: -92.8MB). Peak memory consumption was 127.7MB. Max. memory is 16.1GB. * Witness Printer took 42.33ms. Allocated memory is still 247.5MB. Free memory was 179.6MB in the beginning and 175.5MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. 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: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: 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: 57]: 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: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: 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: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: 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: 77]: 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: 89]: 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: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: 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: 101]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: 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: 127]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 105]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 112]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 115]: 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 7 procedures, 298 locations, 71 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: 3.1s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 132 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 242 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 807 IncrementalHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 129 mSDtfsCounter, 807 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=476occurred in iteration=0, InterpolantAutomatonStates: 59, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1273 NumberOfCodeBlocks, 1273 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1258 ConstructedInterpolants, 0 QuantifiedInterpolants, 1846 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 41 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 16:36:13,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE