./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 19:36:29,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 19:36:29,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 19:36:29,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 19:36:29,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 19:36:29,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 19:36:29,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 19:36:29,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 19:36:29,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 19:36:29,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 19:36:29,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 19:36:29,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 19:36:29,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 19:36:29,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 19:36:29,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 19:36:29,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 19:36:29,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 19:36:29,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 19:36:29,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 19:36:29,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 19:36:29,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 19:36:29,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 19:36:29,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 19:36:29,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 19:36:29,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 19:36:29,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 19:36:29,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 19:36:29,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 19:36:29,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 19:36:29,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 19:36:29,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 19:36:29,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 19:36:29,742 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 19:36:29,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 19:36:29,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 19:36:29,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 19:36:29,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 19:36:29,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 19:36:29,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 19:36:29,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 19:36:29,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 19:36:29,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 19:36:29,765 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 19:36:29,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 19:36:29,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 19:36:29,766 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 19:36:29,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 19:36:29,766 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 19:36:29,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 19:36:29,767 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 19:36:29,767 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 19:36:29,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 19:36:29,768 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 19:36:29,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 19:36:29,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 19:36:29,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 19:36:29,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 19:36:29,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 19:36:29,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 19:36:29,769 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 19:36:29,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 19:36:29,769 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 19:36:29,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 19:36:29,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 19:36:29,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 19:36:29,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 19:36:29,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 19:36:29,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 19:36:29,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 19:36:29,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 19:36:29,771 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 19:36:29,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 19:36:29,771 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 19:36:29,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 19:36:29,772 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 19:36:29,772 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 19:36:29,772 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 19:36:29,772 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 19:36:30,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 19:36:30,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 19:36:30,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 19:36:30,080 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 19:36:30,081 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 19:36:30,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2023-08-30 19:36:31,271 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 19:36:31,475 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 19:36:31,476 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2023-08-30 19:36:31,485 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5b1eeef/771aa02223dc443dabd6da5641062ebe/FLAG21a6571ab [2023-08-30 19:36:31,497 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5b1eeef/771aa02223dc443dabd6da5641062ebe [2023-08-30 19:36:31,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 19:36:31,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 19:36:31,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 19:36:31,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 19:36:31,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 19:36:31,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 07:36:31" (1/1) ... [2023-08-30 19:36:31,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31b82723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:36:31, skipping insertion in model container [2023-08-30 19:36:31,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 07:36:31" (1/1) ... [2023-08-30 19:36:31,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 19:36:31,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 19:36:31,639 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c[4722,4735] [2023-08-30 19:36:31,643 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 19:36:31,650 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 19:36:31,669 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c[4722,4735] [2023-08-30 19:36:31,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 19:36:31,676 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 19:36:31,676 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 19:36:31,681 INFO L208 MainTranslator]: Completed translation [2023-08-30 19:36:31,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:36:31 WrapperNode [2023-08-30 19:36:31,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 19:36:31,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 19:36:31,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 19:36:31,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 19:36:31,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:36:31" (1/1) ... [2023-08-30 19:36:31,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:36:31" (1/1) ... [2023-08-30 19:36:31,710 INFO L138 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 265 [2023-08-30 19:36:31,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 19:36:31,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 19:36:31,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 19:36:31,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 19:36:31,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:36:31" (1/1) ... [2023-08-30 19:36:31,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:36:31" (1/1) ... [2023-08-30 19:36:31,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:36:31" (1/1) ... [2023-08-30 19:36:31,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:36:31" (1/1) ... [2023-08-30 19:36:31,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:36:31" (1/1) ... [2023-08-30 19:36:31,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:36:31" (1/1) ... [2023-08-30 19:36:31,738 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:36:31" (1/1) ... [2023-08-30 19:36:31,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:36:31" (1/1) ... [2023-08-30 19:36:31,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 19:36:31,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 19:36:31,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 19:36:31,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 19:36:31,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:36:31" (1/1) ... [2023-08-30 19:36:31,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 19:36:31,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 19:36:31,799 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) [2023-08-30 19:36:31,808 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 [2023-08-30 19:36:31,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 19:36:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 19:36:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 19:36:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 19:36:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-30 19:36:31,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-30 19:36:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-30 19:36:31,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-30 19:36:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-30 19:36:31,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-30 19:36:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-08-30 19:36:31,834 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-08-30 19:36:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 19:36:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-08-30 19:36:31,834 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-08-30 19:36:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-08-30 19:36:31,835 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-08-30 19:36:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 19:36:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 19:36:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 19:36:31,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 19:36:31,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 19:36:31,844 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 19:36:32,023 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 19:36:32,025 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 19:36:32,252 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 19:36:32,302 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 19:36:32,303 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 19:36:32,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 07:36:32 BoogieIcfgContainer [2023-08-30 19:36:32,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 19:36:32,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 19:36:32,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 19:36:32,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 19:36:32,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 07:36:31" (1/3) ... [2023-08-30 19:36:32,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21178601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 07:36:32, skipping insertion in model container [2023-08-30 19:36:32,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 07:36:31" (2/3) ... [2023-08-30 19:36:32,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21178601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 07:36:32, skipping insertion in model container [2023-08-30 19:36:32,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 07:36:32" (3/3) ... [2023-08-30 19:36:32,311 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2023-08-30 19:36:32,317 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 19:36:32,324 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 19:36:32,324 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-30 19:36:32,324 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 19:36:32,481 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-08-30 19:36:32,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 236 transitions, 544 flow [2023-08-30 19:36:32,623 INFO L130 PetriNetUnfolder]: 8/208 cut-off events. [2023-08-30 19:36:32,623 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 19:36:32,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 208 events. 8/208 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 231 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 180. Up to 3 conditions per place. [2023-08-30 19:36:32,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 236 transitions, 544 flow [2023-08-30 19:36:32,641 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 200 transitions, 448 flow [2023-08-30 19:36:32,645 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 19:36:32,661 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 200 transitions, 448 flow [2023-08-30 19:36:32,664 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 200 transitions, 448 flow [2023-08-30 19:36:32,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 200 transitions, 448 flow [2023-08-30 19:36:32,718 INFO L130 PetriNetUnfolder]: 8/200 cut-off events. [2023-08-30 19:36:32,718 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 19:36:32,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 200 events. 8/200 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 230 event pairs, 0 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 180. Up to 3 conditions per place. [2023-08-30 19:36:32,726 INFO L119 LiptonReduction]: Number of co-enabled transitions 7268 [2023-08-30 19:36:36,527 INFO L134 LiptonReduction]: Checked pairs total: 54922 [2023-08-30 19:36:36,528 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-08-30 19:36:36,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 19:36:36,553 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6dac14fd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 19:36:36,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-08-30 19:36:36,566 INFO L130 PetriNetUnfolder]: 6/77 cut-off events. [2023-08-30 19:36:36,569 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-08-30 19:36:36,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 19:36:36,570 INFO L208 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] [2023-08-30 19:36:36,570 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-08-30 19:36:36,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 19:36:36,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1652580324, now seen corresponding path program 1 times [2023-08-30 19:36:36,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 19:36:36,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944885350] [2023-08-30 19:36:36,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 19:36:36,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 19:36:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 19:36:36,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 19:36:36,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 19:36:36,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944885350] [2023-08-30 19:36:36,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944885350] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 19:36:36,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 19:36:36,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 19:36:36,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679650988] [2023-08-30 19:36:36,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 19:36:36,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 19:36:36,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 19:36:36,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 19:36:36,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 19:36:36,868 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 382 [2023-08-30 19:36:36,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 78 transitions, 204 flow. Second operand has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:36,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 19:36:36,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 382 [2023-08-30 19:36:36,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 19:36:38,202 INFO L130 PetriNetUnfolder]: 6800/10951 cut-off events. [2023-08-30 19:36:38,202 INFO L131 PetriNetUnfolder]: For 1693/1693 co-relation queries the response was YES. [2023-08-30 19:36:38,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22350 conditions, 10951 events. 6800/10951 cut-off events. For 1693/1693 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 75337 event pairs, 6256 based on Foata normal form. 68/9617 useless extension candidates. Maximal degree in co-relation 21902. Up to 9114 conditions per place. [2023-08-30 19:36:38,322 INFO L137 encePairwiseOnDemand]: 380/382 looper letters, 40 selfloop transitions, 0 changer transitions 1/76 dead transitions. [2023-08-30 19:36:38,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 76 transitions, 282 flow [2023-08-30 19:36:38,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 19:36:38,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 19:36:38,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 457 transitions. [2023-08-30 19:36:38,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5981675392670157 [2023-08-30 19:36:38,344 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 457 transitions. [2023-08-30 19:36:38,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 457 transitions. [2023-08-30 19:36:38,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 19:36:38,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 457 transitions. [2023-08-30 19:36:38,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 228.5) internal successors, (457), 2 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:38,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:38,360 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:38,361 INFO L175 Difference]: Start difference. First operand has 91 places, 78 transitions, 204 flow. Second operand 2 states and 457 transitions. [2023-08-30 19:36:38,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 76 transitions, 282 flow [2023-08-30 19:36:38,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 76 transitions, 250 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-08-30 19:36:38,463 INFO L231 Difference]: Finished difference. Result has 80 places, 75 transitions, 166 flow [2023-08-30 19:36:38,465 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=166, PETRI_PLACES=80, PETRI_TRANSITIONS=75} [2023-08-30 19:36:38,468 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, -11 predicate places. [2023-08-30 19:36:38,468 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 75 transitions, 166 flow [2023-08-30 19:36:38,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 225.5) internal successors, (451), 2 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:38,469 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 19:36:38,469 INFO L208 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] [2023-08-30 19:36:38,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 19:36:38,470 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-08-30 19:36:38,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 19:36:38,471 INFO L85 PathProgramCache]: Analyzing trace with hash 415429005, now seen corresponding path program 1 times [2023-08-30 19:36:38,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 19:36:38,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049832537] [2023-08-30 19:36:38,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 19:36:38,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 19:36:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 19:36:38,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 19:36:38,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 19:36:38,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049832537] [2023-08-30 19:36:38,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049832537] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 19:36:38,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 19:36:38,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 19:36:38,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316988671] [2023-08-30 19:36:38,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 19:36:38,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 19:36:38,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 19:36:38,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 19:36:38,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 19:36:38,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 382 [2023-08-30 19:36:38,849 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 75 transitions, 166 flow. Second operand has 4 states, 4 states have (on average 212.25) internal successors, (849), 4 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:38,849 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 19:36:38,849 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 382 [2023-08-30 19:36:38,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 19:36:39,755 INFO L130 PetriNetUnfolder]: 6155/10159 cut-off events. [2023-08-30 19:36:39,755 INFO L131 PetriNetUnfolder]: For 451/451 co-relation queries the response was YES. [2023-08-30 19:36:39,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18851 conditions, 10159 events. 6155/10159 cut-off events. For 451/451 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 69474 event pairs, 4201 based on Foata normal form. 198/9491 useless extension candidates. Maximal degree in co-relation 18848. Up to 6985 conditions per place. [2023-08-30 19:36:39,817 INFO L137 encePairwiseOnDemand]: 378/382 looper letters, 75 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2023-08-30 19:36:39,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 112 transitions, 410 flow [2023-08-30 19:36:39,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 19:36:39,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 19:36:39,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 891 transitions. [2023-08-30 19:36:39,821 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5831151832460733 [2023-08-30 19:36:39,822 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 891 transitions. [2023-08-30 19:36:39,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 891 transitions. [2023-08-30 19:36:39,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 19:36:39,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 891 transitions. [2023-08-30 19:36:39,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 222.75) internal successors, (891), 4 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:39,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 382.0) internal successors, (1910), 5 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:39,844 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 382.0) internal successors, (1910), 5 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:39,844 INFO L175 Difference]: Start difference. First operand has 80 places, 75 transitions, 166 flow. Second operand 4 states and 891 transitions. [2023-08-30 19:36:39,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 112 transitions, 410 flow [2023-08-30 19:36:39,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 112 transitions, 410 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 19:36:39,847 INFO L231 Difference]: Finished difference. Result has 83 places, 75 transitions, 176 flow [2023-08-30 19:36:39,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=83, PETRI_TRANSITIONS=75} [2023-08-30 19:36:39,848 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, -8 predicate places. [2023-08-30 19:36:39,848 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 75 transitions, 176 flow [2023-08-30 19:36:39,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 212.25) internal successors, (849), 4 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:39,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 19:36:39,849 INFO L208 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] [2023-08-30 19:36:39,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 19:36:39,850 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-08-30 19:36:39,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 19:36:39,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1295147923, now seen corresponding path program 2 times [2023-08-30 19:36:39,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 19:36:39,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467791881] [2023-08-30 19:36:39,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 19:36:39,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 19:36:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 19:36:40,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 19:36:40,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 19:36:40,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467791881] [2023-08-30 19:36:40,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467791881] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 19:36:40,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 19:36:40,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-08-30 19:36:40,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948895697] [2023-08-30 19:36:40,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 19:36:40,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-30 19:36:40,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 19:36:40,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-30 19:36:40,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2023-08-30 19:36:41,459 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 382 [2023-08-30 19:36:41,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 75 transitions, 176 flow. Second operand has 17 states, 17 states have (on average 178.8235294117647) internal successors, (3040), 17 states have internal predecessors, (3040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:41,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 19:36:41,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 382 [2023-08-30 19:36:41,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 19:36:49,830 INFO L130 PetriNetUnfolder]: 78245/106344 cut-off events. [2023-08-30 19:36:49,830 INFO L131 PetriNetUnfolder]: For 5814/5814 co-relation queries the response was YES. [2023-08-30 19:36:50,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214348 conditions, 106344 events. 78245/106344 cut-off events. For 5814/5814 co-relation queries the response was YES. Maximal size of possible extension queue 2348. Compared 653349 event pairs, 15503 based on Foata normal form. 1/102862 useless extension candidates. Maximal degree in co-relation 214343. Up to 68181 conditions per place. [2023-08-30 19:36:50,354 INFO L137 encePairwiseOnDemand]: 364/382 looper letters, 469 selfloop transitions, 129 changer transitions 29/650 dead transitions. [2023-08-30 19:36:50,354 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 650 transitions, 2795 flow [2023-08-30 19:36:50,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-08-30 19:36:50,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2023-08-30 19:36:50,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 6788 transitions. [2023-08-30 19:36:50,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5077038145100973 [2023-08-30 19:36:50,367 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 6788 transitions. [2023-08-30 19:36:50,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 6788 transitions. [2023-08-30 19:36:50,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 19:36:50,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 6788 transitions. [2023-08-30 19:36:50,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 193.94285714285715) internal successors, (6788), 35 states have internal predecessors, (6788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:50,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 382.0) internal successors, (13752), 36 states have internal predecessors, (13752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:50,403 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 382.0) internal successors, (13752), 36 states have internal predecessors, (13752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:50,403 INFO L175 Difference]: Start difference. First operand has 83 places, 75 transitions, 176 flow. Second operand 35 states and 6788 transitions. [2023-08-30 19:36:50,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 650 transitions, 2795 flow [2023-08-30 19:36:50,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 650 transitions, 2733 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 19:36:50,509 INFO L231 Difference]: Finished difference. Result has 132 places, 214 transitions, 895 flow [2023-08-30 19:36:50,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=895, PETRI_PLACES=132, PETRI_TRANSITIONS=214} [2023-08-30 19:36:50,510 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 41 predicate places. [2023-08-30 19:36:50,511 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 214 transitions, 895 flow [2023-08-30 19:36:50,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 178.8235294117647) internal successors, (3040), 17 states have internal predecessors, (3040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:50,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 19:36:50,512 INFO L208 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] [2023-08-30 19:36:50,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 19:36:50,512 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-08-30 19:36:50,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 19:36:50,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1874849889, now seen corresponding path program 3 times [2023-08-30 19:36:50,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 19:36:50,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900129973] [2023-08-30 19:36:50,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 19:36:50,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 19:36:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 19:36:50,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 19:36:50,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 19:36:50,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900129973] [2023-08-30 19:36:50,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900129973] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 19:36:50,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 19:36:50,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 19:36:50,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222110549] [2023-08-30 19:36:50,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 19:36:50,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 19:36:50,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 19:36:50,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 19:36:50,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 19:36:50,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 382 [2023-08-30 19:36:50,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 214 transitions, 895 flow. Second operand has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:50,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 19:36:50,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 382 [2023-08-30 19:36:50,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 19:36:53,326 INFO L130 PetriNetUnfolder]: 17697/28148 cut-off events. [2023-08-30 19:36:53,327 INFO L131 PetriNetUnfolder]: For 10480/11072 co-relation queries the response was YES. [2023-08-30 19:36:53,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65263 conditions, 28148 events. 17697/28148 cut-off events. For 10480/11072 co-relation queries the response was YES. Maximal size of possible extension queue 997. Compared 207603 event pairs, 11035 based on Foata normal form. 589/25361 useless extension candidates. Maximal degree in co-relation 65240. Up to 18616 conditions per place. [2023-08-30 19:36:53,503 INFO L137 encePairwiseOnDemand]: 379/382 looper letters, 84 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2023-08-30 19:36:53,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 164 transitions, 791 flow [2023-08-30 19:36:53,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 19:36:53,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 19:36:53,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 674 transitions. [2023-08-30 19:36:53,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5881326352530541 [2023-08-30 19:36:53,506 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 674 transitions. [2023-08-30 19:36:53,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 674 transitions. [2023-08-30 19:36:53,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 19:36:53,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 674 transitions. [2023-08-30 19:36:53,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:53,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 382.0) internal successors, (1528), 4 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:53,509 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 382.0) internal successors, (1528), 4 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:53,509 INFO L175 Difference]: Start difference. First operand has 132 places, 214 transitions, 895 flow. Second operand 3 states and 674 transitions. [2023-08-30 19:36:53,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 164 transitions, 791 flow [2023-08-30 19:36:53,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 164 transitions, 745 flow, removed 12 selfloop flow, removed 11 redundant places. [2023-08-30 19:36:53,832 INFO L231 Difference]: Finished difference. Result has 107 places, 140 transitions, 511 flow [2023-08-30 19:36:53,832 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=511, PETRI_PLACES=107, PETRI_TRANSITIONS=140} [2023-08-30 19:36:53,833 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 16 predicate places. [2023-08-30 19:36:53,833 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 140 transitions, 511 flow [2023-08-30 19:36:53,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:53,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 19:36:53,834 INFO L208 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] [2023-08-30 19:36:53,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 19:36:53,834 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-08-30 19:36:53,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 19:36:53,835 INFO L85 PathProgramCache]: Analyzing trace with hash 889750141, now seen corresponding path program 4 times [2023-08-30 19:36:53,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 19:36:53,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334098038] [2023-08-30 19:36:53,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 19:36:53,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 19:36:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 19:36:54,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 19:36:54,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 19:36:54,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334098038] [2023-08-30 19:36:54,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334098038] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 19:36:54,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 19:36:54,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-08-30 19:36:54,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141048310] [2023-08-30 19:36:54,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 19:36:54,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-08-30 19:36:54,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 19:36:54,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-08-30 19:36:54,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-08-30 19:36:55,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 382 [2023-08-30 19:36:55,413 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 140 transitions, 511 flow. Second operand has 20 states, 20 states have (on average 178.4) internal successors, (3568), 20 states have internal predecessors, (3568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:36:55,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 19:36:55,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 382 [2023-08-30 19:36:55,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 19:37:04,826 INFO L130 PetriNetUnfolder]: 66042/90270 cut-off events. [2023-08-30 19:37:04,827 INFO L131 PetriNetUnfolder]: For 31455/31461 co-relation queries the response was YES. [2023-08-30 19:37:05,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221970 conditions, 90270 events. 66042/90270 cut-off events. For 31455/31461 co-relation queries the response was YES. Maximal size of possible extension queue 1578. Compared 539541 event pairs, 10178 based on Foata normal form. 7/86849 useless extension candidates. Maximal degree in co-relation 221956. Up to 60083 conditions per place. [2023-08-30 19:37:05,328 INFO L137 encePairwiseOnDemand]: 363/382 looper letters, 664 selfloop transitions, 224 changer transitions 25/936 dead transitions. [2023-08-30 19:37:05,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 936 transitions, 4660 flow [2023-08-30 19:37:05,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-08-30 19:37:05,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2023-08-30 19:37:05,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 12494 transitions. [2023-08-30 19:37:05,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4955576709503411 [2023-08-30 19:37:05,348 INFO L72 ComplementDD]: Start complementDD. Operand 66 states and 12494 transitions. [2023-08-30 19:37:05,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 12494 transitions. [2023-08-30 19:37:05,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 19:37:05,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 66 states and 12494 transitions. [2023-08-30 19:37:05,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 67 states, 66 states have (on average 189.3030303030303) internal successors, (12494), 66 states have internal predecessors, (12494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:05,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 67 states, 67 states have (on average 382.0) internal successors, (25594), 67 states have internal predecessors, (25594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:05,404 INFO L81 ComplementDD]: Finished complementDD. Result has 67 states, 67 states have (on average 382.0) internal successors, (25594), 67 states have internal predecessors, (25594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:05,405 INFO L175 Difference]: Start difference. First operand has 107 places, 140 transitions, 511 flow. Second operand 66 states and 12494 transitions. [2023-08-30 19:37:05,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 936 transitions, 4660 flow [2023-08-30 19:37:05,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 936 transitions, 4654 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 19:37:05,519 INFO L231 Difference]: Finished difference. Result has 181 places, 349 transitions, 1931 flow [2023-08-30 19:37:05,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=66, PETRI_FLOW=1931, PETRI_PLACES=181, PETRI_TRANSITIONS=349} [2023-08-30 19:37:05,520 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 90 predicate places. [2023-08-30 19:37:05,520 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 349 transitions, 1931 flow [2023-08-30 19:37:05,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 178.4) internal successors, (3568), 20 states have internal predecessors, (3568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:05,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 19:37:05,521 INFO L208 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] [2023-08-30 19:37:05,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 19:37:05,521 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-08-30 19:37:05,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 19:37:05,522 INFO L85 PathProgramCache]: Analyzing trace with hash 909847024, now seen corresponding path program 1 times [2023-08-30 19:37:05,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 19:37:05,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773268508] [2023-08-30 19:37:05,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 19:37:05,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 19:37:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 19:37:06,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 19:37:06,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 19:37:06,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773268508] [2023-08-30 19:37:06,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773268508] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 19:37:06,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 19:37:06,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-08-30 19:37:06,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883355432] [2023-08-30 19:37:06,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 19:37:06,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-30 19:37:06,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 19:37:06,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-30 19:37:06,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2023-08-30 19:37:06,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 382 [2023-08-30 19:37:06,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 349 transitions, 1931 flow. Second operand has 19 states, 19 states have (on average 178.52631578947367) internal successors, (3392), 19 states have internal predecessors, (3392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:06,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 19:37:06,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 382 [2023-08-30 19:37:06,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 19:37:16,537 INFO L130 PetriNetUnfolder]: 75226/102789 cut-off events. [2023-08-30 19:37:16,537 INFO L131 PetriNetUnfolder]: For 129882/129894 co-relation queries the response was YES. [2023-08-30 19:37:17,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308413 conditions, 102789 events. 75226/102789 cut-off events. For 129882/129894 co-relation queries the response was YES. Maximal size of possible extension queue 1783. Compared 627679 event pairs, 21365 based on Foata normal form. 1/99006 useless extension candidates. Maximal degree in co-relation 308388. Up to 84044 conditions per place. [2023-08-30 19:37:17,377 INFO L137 encePairwiseOnDemand]: 364/382 looper letters, 604 selfloop transitions, 146 changer transitions 44/817 dead transitions. [2023-08-30 19:37:17,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 817 transitions, 5401 flow [2023-08-30 19:37:17,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-08-30 19:37:17,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-08-30 19:37:17,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 6807 transitions. [2023-08-30 19:37:17,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4949825479930192 [2023-08-30 19:37:17,384 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 6807 transitions. [2023-08-30 19:37:17,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 6807 transitions. [2023-08-30 19:37:17,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 19:37:17,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 6807 transitions. [2023-08-30 19:37:17,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 189.08333333333334) internal successors, (6807), 36 states have internal predecessors, (6807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:17,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 382.0) internal successors, (14134), 37 states have internal predecessors, (14134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:17,548 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 382.0) internal successors, (14134), 37 states have internal predecessors, (14134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:17,548 INFO L175 Difference]: Start difference. First operand has 181 places, 349 transitions, 1931 flow. Second operand 36 states and 6807 transitions. [2023-08-30 19:37:17,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 817 transitions, 5401 flow [2023-08-30 19:37:18,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 817 transitions, 4941 flow, removed 175 selfloop flow, removed 8 redundant places. [2023-08-30 19:37:18,824 INFO L231 Difference]: Finished difference. Result has 225 places, 486 transitions, 2943 flow [2023-08-30 19:37:18,825 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=1538, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=2943, PETRI_PLACES=225, PETRI_TRANSITIONS=486} [2023-08-30 19:37:18,825 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 134 predicate places. [2023-08-30 19:37:18,825 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 486 transitions, 2943 flow [2023-08-30 19:37:18,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 178.52631578947367) internal successors, (3392), 19 states have internal predecessors, (3392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:18,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 19:37:18,827 INFO L208 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] [2023-08-30 19:37:18,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 19:37:18,829 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-08-30 19:37:18,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 19:37:18,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1384318865, now seen corresponding path program 5 times [2023-08-30 19:37:18,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 19:37:18,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107209978] [2023-08-30 19:37:18,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 19:37:18,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 19:37:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 19:37:18,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 19:37:18,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 19:37:18,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107209978] [2023-08-30 19:37:18,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107209978] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 19:37:18,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 19:37:18,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 19:37:18,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437839235] [2023-08-30 19:37:18,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 19:37:18,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 19:37:18,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 19:37:18,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 19:37:18,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 19:37:18,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 382 [2023-08-30 19:37:18,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 486 transitions, 2943 flow. Second operand has 4 states, 4 states have (on average 212.25) internal successors, (849), 4 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:18,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 19:37:18,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 382 [2023-08-30 19:37:18,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 19:37:21,461 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([725] L63-->thread2EXIT: Formula: (and (= |v_thread2Thread1of1ForFork5_#res#1.offset_9| 0) (= |v_thread2Thread1of1ForFork5_#res#1.base_9| 0) (= (+ v_~temp_4~0_15 1) v_~y_1~0_26)) InVars {~temp_4~0=v_~temp_4~0_15} OutVars{~temp_4~0=v_~temp_4~0_15, thread2Thread1of1ForFork5_#res#1.offset=|v_thread2Thread1of1ForFork5_#res#1.offset_9|, ~y_1~0=v_~y_1~0_26, thread2Thread1of1ForFork5_#res#1.base=|v_thread2Thread1of1ForFork5_#res#1.base_9|} AuxVars[] AssignedVars[thread2Thread1of1ForFork5_#res#1.offset, ~y_1~0, thread2Thread1of1ForFork5_#res#1.base][145], [Black: 504#(and (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 511#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0)), Black: 540#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 508#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (= ~temp_11~0 0) (<= ~y_1~0 1)), Black: 542#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 536#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 526#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_4~0 ~temp_10~0)), Black: 556#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0)), Black: 534#(and (< ~x_6~0 (+ ~x_0~0 1)) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 500#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0)), 259#true, Black: 544#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (= ~temp_11~0 0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 528#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0) (<= ~temp_4~0 ~temp_10~0)), 498#true, 595#(= ~f1_8~0 (* 256 (div ~f1_8~0 256))), Black: 546#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 518#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (= ~temp_10~0 ~x_0~0)), Black: 532#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 295#(and (<= ~x_0~0 (+ ~x_6~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~x_6~0 2) ~x_0~0) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), 94#L140true, Black: 524#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_4~0 ~temp_10~0)), 69#L166-1true, Black: 277#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), Black: 301#(and (<= ~y_7~0 ~y_1~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 1)), 250#true, Black: 279#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), Black: 293#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), 356#true, Black: 261#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0)), 188#thread2EXITtrue, Black: 287#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~temp_5~0 ~y_7~0) (<= ~y_7~0 ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), 9#$Ultimate##0true, Black: 353#(= ~f2_3~0 (* 256 (div ~f2_3~0 256))), 172#L102-4true, Black: 425#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_5~0 1) ~x_6~0) (<= ~x_0~0 ~x_6~0) (<= ~temp_11~0 ~temp_5~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~x_6~0 (+ ~temp_5~0 1)) (<= ~x_6~0 ~x_0~0)), Black: 399#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~y_7~0 0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= ~temp_5~0 ~x_6~0) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 403#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~temp_5~0 ~x_6~0) (<= ~x_0~0 1)), Black: 405#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 389#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 366#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 1)), Black: 377#(and (< ~x_0~0 (+ ~x_6~0 1)) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~x_6~0 ~x_0~0) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0)) (or (= ~y_7~0 0) (not (= ~x_6~0 0)))), Black: 371#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~temp_5~0 ~temp_11~0)), Black: 393#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 358#(and (or (and (or (= ~y_7~0 0) (not (= ~x_0~0 0))) (or (= ~y_1~0 0) (= ~x_0~0 0))) (not (= ~x_6~0 0))) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0))), 227#L193-4true, 76#thread3EXITtrue, Black: 501#(and (= ~y_1~0 0) (= ~y_7~0 0) (= ~temp_10~0 ~x_0~0)), Black: 572#(and (< ~x_6~0 (+ ~x_0~0 1)) (<= (+ ~temp_10~0 1) ~y_1~0) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~x_0~0 ~x_6~0) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 (+ ~temp_10~0 1)))]) [2023-08-30 19:37:21,462 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is not cut-off event [2023-08-30 19:37:21,462 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is not cut-off event [2023-08-30 19:37:21,462 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is not cut-off event [2023-08-30 19:37:21,462 INFO L386 tUnfolder$Statistics]: existing Event has 41 ancestors and is not cut-off event [2023-08-30 19:37:21,556 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([725] L63-->thread2EXIT: Formula: (and (= |v_thread2Thread1of1ForFork5_#res#1.offset_9| 0) (= |v_thread2Thread1of1ForFork5_#res#1.base_9| 0) (= (+ v_~temp_4~0_15 1) v_~y_1~0_26)) InVars {~temp_4~0=v_~temp_4~0_15} OutVars{~temp_4~0=v_~temp_4~0_15, thread2Thread1of1ForFork5_#res#1.offset=|v_thread2Thread1of1ForFork5_#res#1.offset_9|, ~y_1~0=v_~y_1~0_26, thread2Thread1of1ForFork5_#res#1.base=|v_thread2Thread1of1ForFork5_#res#1.base_9|} AuxVars[] AssignedVars[thread2Thread1of1ForFork5_#res#1.offset, ~y_1~0, thread2Thread1of1ForFork5_#res#1.base][145], [Black: 504#(and (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 511#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0)), Black: 540#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 508#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (= ~temp_11~0 0) (<= ~y_1~0 1)), Black: 542#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 536#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 526#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_4~0 ~temp_10~0)), Black: 556#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0)), Black: 534#(and (< ~x_6~0 (+ ~x_0~0 1)) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 500#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0)), Black: 544#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (= ~temp_11~0 0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), 259#true, Black: 528#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0) (<= ~temp_4~0 ~temp_10~0)), Black: 546#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), 498#true, 595#(= ~f1_8~0 (* 256 (div ~f1_8~0 256))), Black: 518#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (= ~temp_10~0 ~x_0~0)), Black: 532#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 295#(and (<= ~x_0~0 (+ ~x_6~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~x_6~0 2) ~x_0~0) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), 94#L140true, Black: 524#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_4~0 ~temp_10~0)), 69#L166-1true, Black: 277#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), Black: 301#(and (<= ~y_7~0 ~y_1~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 1)), 250#true, Black: 279#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), Black: 293#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), 356#true, Black: 261#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0)), Black: 287#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~temp_5~0 ~y_7~0) (<= ~y_7~0 ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), 188#thread2EXITtrue, 9#$Ultimate##0true, Black: 353#(= ~f2_3~0 (* 256 (div ~f2_3~0 256))), 172#L102-4true, Black: 425#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_5~0 1) ~x_6~0) (<= ~x_0~0 ~x_6~0) (<= ~temp_11~0 ~temp_5~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~x_6~0 (+ ~temp_5~0 1)) (<= ~x_6~0 ~x_0~0)), Black: 399#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~y_7~0 0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= ~temp_5~0 ~x_6~0) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 403#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~temp_5~0 ~x_6~0) (<= ~x_0~0 1)), Black: 405#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 389#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 366#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 1)), Black: 377#(and (< ~x_0~0 (+ ~x_6~0 1)) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~x_6~0 ~x_0~0) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0)) (or (= ~y_7~0 0) (not (= ~x_6~0 0)))), Black: 371#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~temp_5~0 ~temp_11~0)), Black: 393#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 358#(and (or (and (or (= ~y_7~0 0) (not (= ~x_0~0 0))) (or (= ~y_1~0 0) (= ~x_0~0 0))) (not (= ~x_6~0 0))) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0))), 76#thread3EXITtrue, 11#L194-1true, Black: 501#(and (= ~y_1~0 0) (= ~y_7~0 0) (= ~temp_10~0 ~x_0~0)), Black: 572#(and (< ~x_6~0 (+ ~x_0~0 1)) (<= (+ ~temp_10~0 1) ~y_1~0) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~x_0~0 ~x_6~0) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 (+ ~temp_10~0 1)))]) [2023-08-30 19:37:21,556 INFO L383 tUnfolder$Statistics]: this new event has 42 ancestors and is not cut-off event [2023-08-30 19:37:21,556 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is not cut-off event [2023-08-30 19:37:21,556 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is not cut-off event [2023-08-30 19:37:21,557 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is not cut-off event [2023-08-30 19:37:21,628 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([725] L63-->thread2EXIT: Formula: (and (= |v_thread2Thread1of1ForFork5_#res#1.offset_9| 0) (= |v_thread2Thread1of1ForFork5_#res#1.base_9| 0) (= (+ v_~temp_4~0_15 1) v_~y_1~0_26)) InVars {~temp_4~0=v_~temp_4~0_15} OutVars{~temp_4~0=v_~temp_4~0_15, thread2Thread1of1ForFork5_#res#1.offset=|v_thread2Thread1of1ForFork5_#res#1.offset_9|, ~y_1~0=v_~y_1~0_26, thread2Thread1of1ForFork5_#res#1.base=|v_thread2Thread1of1ForFork5_#res#1.base_9|} AuxVars[] AssignedVars[thread2Thread1of1ForFork5_#res#1.offset, ~y_1~0, thread2Thread1of1ForFork5_#res#1.base][145], [Black: 504#(and (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 511#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0)), Black: 540#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 508#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (= ~temp_11~0 0) (<= ~y_1~0 1)), Black: 542#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 536#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 526#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_4~0 ~temp_10~0)), Black: 556#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0)), Black: 534#(and (< ~x_6~0 (+ ~x_0~0 1)) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 500#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0)), Black: 544#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 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9#$Ultimate##0true, Black: 353#(= ~f2_3~0 (* 256 (div ~f2_3~0 256))), Black: 425#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_5~0 1) ~x_6~0) (<= ~x_0~0 ~x_6~0) (<= ~temp_11~0 ~temp_5~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~x_6~0 (+ ~temp_5~0 1)) (<= ~x_6~0 ~x_0~0)), Black: 399#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~y_7~0 0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= ~temp_5~0 ~x_6~0) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 403#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~temp_5~0 ~x_6~0) (<= ~x_0~0 1)), Black: 405#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 389#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 366#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 1)), Black: 377#(and (< ~x_0~0 (+ ~x_6~0 1)) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~x_6~0 ~x_0~0) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0)) (or (= ~y_7~0 0) (not (= ~x_6~0 0)))), Black: 371#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~temp_5~0 ~temp_11~0)), Black: 393#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 358#(and (or (and (or (= ~y_7~0 0) (not (= ~x_0~0 0))) (or (= ~y_1~0 0) (= ~x_0~0 0))) (not (= ~x_6~0 0))) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0))), 227#L193-4true, 76#thread3EXITtrue, Black: 501#(and (= ~y_1~0 0) (= ~y_7~0 0) (= ~temp_10~0 ~x_0~0)), Black: 572#(and (< ~x_6~0 (+ ~x_0~0 1)) (<= (+ ~temp_10~0 1) ~y_1~0) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~x_0~0 ~x_6~0) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 (+ ~temp_10~0 1)))]) [2023-08-30 19:37:21,628 INFO L383 tUnfolder$Statistics]: this new event has 42 ancestors and is not cut-off event [2023-08-30 19:37:21,628 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is not cut-off event [2023-08-30 19:37:21,628 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is not cut-off event [2023-08-30 19:37:21,629 INFO L386 tUnfolder$Statistics]: existing Event has 42 ancestors and is not cut-off event [2023-08-30 19:37:21,721 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([725] L63-->thread2EXIT: Formula: (and (= |v_thread2Thread1of1ForFork5_#res#1.offset_9| 0) (= |v_thread2Thread1of1ForFork5_#res#1.base_9| 0) (= (+ v_~temp_4~0_15 1) v_~y_1~0_26)) InVars {~temp_4~0=v_~temp_4~0_15} OutVars{~temp_4~0=v_~temp_4~0_15, thread2Thread1of1ForFork5_#res#1.offset=|v_thread2Thread1of1ForFork5_#res#1.offset_9|, ~y_1~0=v_~y_1~0_26, thread2Thread1of1ForFork5_#res#1.base=|v_thread2Thread1of1ForFork5_#res#1.base_9|} AuxVars[] AssignedVars[thread2Thread1of1ForFork5_#res#1.offset, ~y_1~0, thread2Thread1of1ForFork5_#res#1.base][145], [Black: 504#(and (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 511#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0)), Black: 540#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 508#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (= ~temp_11~0 0) (<= ~y_1~0 1)), Black: 542#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 536#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 526#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~temp_10~0 ~temp_4~0) (<= ~x_0~0 (+ ~temp_10~0 1)) (<= ~temp_4~0 ~temp_10~0)), Black: 556#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_10~0 2) ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0)), Black: 534#(and (< ~x_6~0 (+ ~x_0~0 1)) (= ~y_7~0 0) (<= ~x_0~0 ~x_6~0) (<= 1 ~y_1~0) (<= (+ ~temp_10~0 1) ~x_0~0) (<= ~y_1~0 1) (<= ~x_0~0 (+ ~temp_10~0 1)) (= ~temp_5~0 0)), Black: 500#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0)), 259#true, Black: 544#(and (<= ~x_0~0 (+ ~temp_10~0 2)) (= ~y_7~0 0) (<= (+ ~temp_10~0 2) ~x_0~0) (<= 1 ~y_1~0) (= ~temp_11~0 0) (<= (+ ~temp_10~0 1) ~temp_5~0) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~temp_10~0 1))), Black: 528#(and (= ~y_1~0 0) (= 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69#L166-1true, Black: 277#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), Black: 301#(and (<= ~y_7~0 ~y_1~0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 1)), 250#true, Black: 279#(and (= ~y_1~0 0) (= ~y_7~0 0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~x_6~0 ~temp_4~0) (<= ~temp_4~0 ~x_6~0)), Black: 293#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1) (<= ~temp_5~0 (+ ~x_6~0 1)) (<= (+ ~x_6~0 1) ~temp_5~0)), 356#true, 126#L103-1true, Black: 261#(and (= ~y_1~0 0) (= ~x_0~0 ~x_6~0) (= ~y_7~0 0)), 188#thread2EXITtrue, Black: 287#(and (= ~y_7~0 0) (<= 1 ~y_1~0) (<= (+ ~x_6~0 1) ~x_0~0) (<= ~temp_5~0 ~y_7~0) (<= ~y_7~0 ~temp_5~0) (<= ~x_0~0 (+ ~x_6~0 1)) (<= ~y_1~0 1)), 9#$Ultimate##0true, Black: 353#(= ~f2_3~0 (* 256 (div ~f2_3~0 256))), Black: 425#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= (+ ~temp_5~0 1) ~x_6~0) (<= ~x_0~0 ~x_6~0) (<= ~temp_11~0 ~temp_5~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~x_6~0 (+ ~temp_5~0 1)) (<= ~x_6~0 ~x_0~0)), Black: 399#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~y_7~0 0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= ~temp_5~0 ~x_6~0) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 403#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= 2 ~y_1~0) (<= ~y_1~0 2) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~x_6~0 ~temp_5~0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_5~0 ~temp_11~0) (<= ~temp_5~0 ~x_6~0) (<= ~x_0~0 1)), Black: 405#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 389#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1) (= ~temp_5~0 0)), Black: 366#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (<= 1 ~x_0~0) (= ~temp_11~0 0) (<= ~x_0~0 1)), Black: 377#(and (< ~x_0~0 (+ ~x_6~0 1)) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~y_1~0 ~y_7~0) (<= ~x_6~0 ~x_0~0) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0)) (or (= ~y_7~0 0) (not (= ~x_6~0 0)))), Black: 371#(and (<= ~y_1~0 (+ ~y_7~0 1)) (<= (+ ~y_7~0 1) ~y_1~0) (<= ~temp_11~0 ~temp_5~0) (<= ~temp_5~0 ~temp_11~0)), Black: 393#(and (<= 2 ~y_1~0) (<= ~y_1~0 2) (= ~x_6~0 0) (= ~y_7~0 0) (<= 1 ~x_0~0) (<= ~temp_4~0 1) (<= 1 ~temp_4~0) (<= ~x_0~0 1)), Black: 358#(and (or (and (or (= ~y_7~0 0) (not (= ~x_0~0 0))) (or (= ~y_1~0 0) (= ~x_0~0 0))) (not (= ~x_6~0 0))) (or (not (= ~x_0~0 ~y_1~0)) (= ~x_6~0 0))), 76#thread3EXITtrue, 11#L194-1true, Black: 501#(and (= ~y_1~0 0) (= ~y_7~0 0) (= ~temp_10~0 ~x_0~0)), Black: 572#(and (< ~x_6~0 (+ ~x_0~0 1)) (<= (+ ~temp_10~0 1) ~y_1~0) (< ~y_7~0 (+ ~y_1~0 1)) (<= ~x_0~0 ~x_6~0) (<= ~y_1~0 ~y_7~0) (<= ~y_1~0 (+ ~temp_10~0 1)))]) [2023-08-30 19:37:21,722 INFO L383 tUnfolder$Statistics]: this new event has 43 ancestors and is not cut-off event [2023-08-30 19:37:21,722 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is not cut-off event [2023-08-30 19:37:21,722 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is not cut-off event [2023-08-30 19:37:21,722 INFO L386 tUnfolder$Statistics]: existing Event has 43 ancestors and is not cut-off event [2023-08-30 19:37:24,065 INFO L130 PetriNetUnfolder]: 34503/53294 cut-off events. [2023-08-30 19:37:24,066 INFO L131 PetriNetUnfolder]: For 66979/74566 co-relation queries the response was YES. [2023-08-30 19:37:24,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155890 conditions, 53294 events. 34503/53294 cut-off events. For 66979/74566 co-relation queries the response was YES. Maximal size of possible extension queue 1556. Compared 401876 event pairs, 15936 based on Foata normal form. 1179/48382 useless extension candidates. Maximal degree in co-relation 155847. Up to 29556 conditions per place. [2023-08-30 19:37:24,624 INFO L137 encePairwiseOnDemand]: 378/382 looper letters, 227 selfloop transitions, 3 changer transitions 0/503 dead transitions. [2023-08-30 19:37:24,624 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 503 transitions, 3542 flow [2023-08-30 19:37:24,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 19:37:24,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 19:37:24,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 893 transitions. [2023-08-30 19:37:24,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5844240837696335 [2023-08-30 19:37:24,626 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 893 transitions. [2023-08-30 19:37:24,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 893 transitions. [2023-08-30 19:37:24,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 19:37:24,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 893 transitions. [2023-08-30 19:37:24,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 223.25) internal successors, (893), 4 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:24,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 382.0) internal successors, (1910), 5 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:24,629 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 382.0) internal successors, (1910), 5 states have internal predecessors, (1910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:24,629 INFO L175 Difference]: Start difference. First operand has 225 places, 486 transitions, 2943 flow. Second operand 4 states and 893 transitions. [2023-08-30 19:37:24,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 503 transitions, 3542 flow [2023-08-30 19:37:25,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 503 transitions, 3313 flow, removed 107 selfloop flow, removed 4 redundant places. [2023-08-30 19:37:25,349 INFO L231 Difference]: Finished difference. Result has 214 places, 427 transitions, 2488 flow [2023-08-30 19:37:25,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=2478, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2488, PETRI_PLACES=214, PETRI_TRANSITIONS=427} [2023-08-30 19:37:25,349 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 123 predicate places. [2023-08-30 19:37:25,350 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 427 transitions, 2488 flow [2023-08-30 19:37:25,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 212.25) internal successors, (849), 4 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:25,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 19:37:25,350 INFO L208 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] [2023-08-30 19:37:25,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 19:37:25,351 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-08-30 19:37:25,351 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 19:37:25,351 INFO L85 PathProgramCache]: Analyzing trace with hash 13186073, now seen corresponding path program 6 times [2023-08-30 19:37:25,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 19:37:25,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600210235] [2023-08-30 19:37:25,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 19:37:25,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 19:37:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 19:37:25,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 19:37:25,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 19:37:25,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600210235] [2023-08-30 19:37:25,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600210235] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 19:37:25,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 19:37:25,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 19:37:25,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488223656] [2023-08-30 19:37:25,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 19:37:25,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 19:37:25,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 19:37:25,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 19:37:25,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 19:37:25,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 382 [2023-08-30 19:37:25,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 427 transitions, 2488 flow. Second operand has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:25,620 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 19:37:25,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 382 [2023-08-30 19:37:25,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 19:37:29,338 INFO L130 PetriNetUnfolder]: 27865/43898 cut-off events. [2023-08-30 19:37:29,339 INFO L131 PetriNetUnfolder]: For 48978/52747 co-relation queries the response was YES. [2023-08-30 19:37:29,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127988 conditions, 43898 events. 27865/43898 cut-off events. For 48978/52747 co-relation queries the response was YES. Maximal size of possible extension queue 1245. Compared 327683 event pairs, 13933 based on Foata normal form. 720/39779 useless extension candidates. Maximal degree in co-relation 127947. Up to 26541 conditions per place. [2023-08-30 19:37:29,836 INFO L137 encePairwiseOnDemand]: 379/382 looper letters, 173 selfloop transitions, 3 changer transitions 0/448 dead transitions. [2023-08-30 19:37:29,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 448 transitions, 2910 flow [2023-08-30 19:37:29,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 19:37:29,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 19:37:29,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 676 transitions. [2023-08-30 19:37:29,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5898778359511344 [2023-08-30 19:37:29,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 676 transitions. [2023-08-30 19:37:29,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 676 transitions. [2023-08-30 19:37:29,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 19:37:29,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 676 transitions. [2023-08-30 19:37:29,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 225.33333333333334) internal successors, (676), 3 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:29,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 382.0) internal successors, (1528), 4 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:29,840 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 382.0) internal successors, (1528), 4 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:29,840 INFO L175 Difference]: Start difference. First operand has 214 places, 427 transitions, 2488 flow. Second operand 3 states and 676 transitions. [2023-08-30 19:37:29,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 448 transitions, 2910 flow [2023-08-30 19:37:30,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 448 transitions, 2900 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 19:37:30,106 INFO L231 Difference]: Finished difference. Result has 214 places, 426 transitions, 2489 flow [2023-08-30 19:37:30,107 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=2478, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2489, PETRI_PLACES=214, PETRI_TRANSITIONS=426} [2023-08-30 19:37:30,107 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 123 predicate places. [2023-08-30 19:37:30,108 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 426 transitions, 2489 flow [2023-08-30 19:37:30,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:30,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 19:37:30,108 INFO L208 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] [2023-08-30 19:37:30,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 19:37:30,108 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-08-30 19:37:30,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 19:37:30,109 INFO L85 PathProgramCache]: Analyzing trace with hash 550546311, now seen corresponding path program 7 times [2023-08-30 19:37:30,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 19:37:30,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961372897] [2023-08-30 19:37:30,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 19:37:30,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 19:37:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 19:37:30,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 19:37:30,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 19:37:30,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961372897] [2023-08-30 19:37:30,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961372897] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 19:37:30,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 19:37:30,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-08-30 19:37:30,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564897936] [2023-08-30 19:37:30,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 19:37:30,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-08-30 19:37:30,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 19:37:30,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-08-30 19:37:30,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2023-08-30 19:37:31,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 382 [2023-08-30 19:37:31,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 426 transitions, 2489 flow. Second operand has 21 states, 21 states have (on average 177.28571428571428) internal successors, (3723), 21 states have internal predecessors, (3723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:31,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 19:37:31,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 382 [2023-08-30 19:37:31,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 19:37:44,397 INFO L130 PetriNetUnfolder]: 74458/102565 cut-off events. [2023-08-30 19:37:44,397 INFO L131 PetriNetUnfolder]: For 183441/183515 co-relation queries the response was YES. [2023-08-30 19:37:45,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 351052 conditions, 102565 events. 74458/102565 cut-off events. For 183441/183515 co-relation queries the response was YES. Maximal size of possible extension queue 2216. Compared 631829 event pairs, 9445 based on Foata normal form. 23/99403 useless extension candidates. Maximal degree in co-relation 351010. Up to 63494 conditions per place. [2023-08-30 19:37:45,402 INFO L137 encePairwiseOnDemand]: 362/382 looper letters, 847 selfloop transitions, 432 changer transitions 55/1357 dead transitions. [2023-08-30 19:37:45,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 1357 transitions, 10028 flow [2023-08-30 19:37:45,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2023-08-30 19:37:45,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2023-08-30 19:37:45,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 14532 transitions. [2023-08-30 19:37:45,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4877164720096657 [2023-08-30 19:37:45,415 INFO L72 ComplementDD]: Start complementDD. Operand 78 states and 14532 transitions. [2023-08-30 19:37:45,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 78 states and 14532 transitions. [2023-08-30 19:37:45,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 19:37:45,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 78 states and 14532 transitions. [2023-08-30 19:37:45,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 79 states, 78 states have (on average 186.30769230769232) internal successors, (14532), 78 states have internal predecessors, (14532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:45,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 79 states, 79 states have (on average 382.0) internal successors, (30178), 79 states have internal predecessors, (30178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:45,468 INFO L81 ComplementDD]: Finished complementDD. Result has 79 states, 79 states have (on average 382.0) internal successors, (30178), 79 states have internal predecessors, (30178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:45,468 INFO L175 Difference]: Start difference. First operand has 214 places, 426 transitions, 2489 flow. Second operand 78 states and 14532 transitions. [2023-08-30 19:37:45,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 1357 transitions, 10028 flow [2023-08-30 19:37:49,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 1357 transitions, 10022 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 19:37:49,192 INFO L231 Difference]: Finished difference. Result has 322 places, 800 transitions, 6768 flow [2023-08-30 19:37:49,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=2483, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=78, PETRI_FLOW=6768, PETRI_PLACES=322, PETRI_TRANSITIONS=800} [2023-08-30 19:37:49,193 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 231 predicate places. [2023-08-30 19:37:49,193 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 800 transitions, 6768 flow [2023-08-30 19:37:49,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 177.28571428571428) internal successors, (3723), 21 states have internal predecessors, (3723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:49,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 19:37:49,194 INFO L208 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] [2023-08-30 19:37:49,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 19:37:49,194 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-08-30 19:37:49,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 19:37:49,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1185867669, now seen corresponding path program 8 times [2023-08-30 19:37:49,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 19:37:49,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27675390] [2023-08-30 19:37:49,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 19:37:49,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 19:37:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 19:37:49,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 19:37:49,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 19:37:49,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27675390] [2023-08-30 19:37:49,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27675390] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 19:37:49,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 19:37:49,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-08-30 19:37:49,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212154689] [2023-08-30 19:37:49,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 19:37:49,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-08-30 19:37:49,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 19:37:49,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-08-30 19:37:49,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2023-08-30 19:37:50,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 382 [2023-08-30 19:37:50,340 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 800 transitions, 6768 flow. Second operand has 20 states, 20 states have (on average 178.4) internal successors, (3568), 20 states have internal predecessors, (3568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:37:50,340 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 19:37:50,340 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 382 [2023-08-30 19:37:50,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 19:38:07,465 INFO L130 PetriNetUnfolder]: 87497/120383 cut-off events. [2023-08-30 19:38:07,465 INFO L131 PetriNetUnfolder]: For 845281/845295 co-relation queries the response was YES. [2023-08-30 19:38:09,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 513007 conditions, 120383 events. 87497/120383 cut-off events. For 845281/845295 co-relation queries the response was YES. Maximal size of possible extension queue 2483. Compared 752140 event pairs, 24468 based on Foata normal form. 15/116423 useless extension candidates. Maximal degree in co-relation 512932. Up to 95180 conditions per place. [2023-08-30 19:38:09,432 INFO L137 encePairwiseOnDemand]: 363/382 looper letters, 1100 selfloop transitions, 247 changer transitions 20/1390 dead transitions. [2023-08-30 19:38:09,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 1390 transitions, 13463 flow [2023-08-30 19:38:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-08-30 19:38:09,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2023-08-30 19:38:09,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 8487 transitions. [2023-08-30 19:38:09,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.493717277486911 [2023-08-30 19:38:09,441 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 8487 transitions. [2023-08-30 19:38:09,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 8487 transitions. [2023-08-30 19:38:09,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 19:38:09,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 8487 transitions. [2023-08-30 19:38:09,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 188.6) internal successors, (8487), 45 states have internal predecessors, (8487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:38:09,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 382.0) internal successors, (17572), 46 states have internal predecessors, (17572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:38:09,476 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 382.0) internal successors, (17572), 46 states have internal predecessors, (17572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:38:09,488 INFO L175 Difference]: Start difference. First operand has 322 places, 800 transitions, 6768 flow. Second operand 45 states and 8487 transitions. [2023-08-30 19:38:09,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 1390 transitions, 13463 flow [2023-08-30 19:38:24,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 1390 transitions, 12289 flow, removed 541 selfloop flow, removed 4 redundant places. [2023-08-30 19:38:24,430 INFO L231 Difference]: Finished difference. Result has 374 places, 1025 transitions, 8974 flow [2023-08-30 19:38:24,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=5641, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=800, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=705, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=8974, PETRI_PLACES=374, PETRI_TRANSITIONS=1025} [2023-08-30 19:38:24,431 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 283 predicate places. [2023-08-30 19:38:24,431 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 1025 transitions, 8974 flow [2023-08-30 19:38:24,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 178.4) internal successors, (3568), 20 states have internal predecessors, (3568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:38:24,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 19:38:24,432 INFO L208 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] [2023-08-30 19:38:24,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 19:38:24,432 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-08-30 19:38:24,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 19:38:24,433 INFO L85 PathProgramCache]: Analyzing trace with hash 414408044, now seen corresponding path program 2 times [2023-08-30 19:38:24,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 19:38:24,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252768540] [2023-08-30 19:38:24,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 19:38:24,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 19:38:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 19:38:24,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 19:38:24,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 19:38:24,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252768540] [2023-08-30 19:38:24,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252768540] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 19:38:24,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 19:38:24,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-08-30 19:38:24,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871079418] [2023-08-30 19:38:24,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 19:38:24,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-08-30 19:38:24,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 19:38:24,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-08-30 19:38:24,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2023-08-30 19:38:25,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 382 [2023-08-30 19:38:25,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 1025 transitions, 8974 flow. Second operand has 19 states, 19 states have (on average 178.52631578947367) internal successors, (3392), 19 states have internal predecessors, (3392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:38:25,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 19:38:25,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 382 [2023-08-30 19:38:25,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 19:38:49,342 INFO L130 PetriNetUnfolder]: 105363/144544 cut-off events. [2023-08-30 19:38:49,342 INFO L131 PetriNetUnfolder]: For 1411209/1411265 co-relation queries the response was YES. [2023-08-30 19:38:51,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654930 conditions, 144544 events. 105363/144544 cut-off events. For 1411209/1411265 co-relation queries the response was YES. Maximal size of possible extension queue 2823. Compared 918942 event pairs, 28427 based on Foata normal form. 35/139737 useless extension candidates. Maximal degree in co-relation 654841. Up to 110921 conditions per place. [2023-08-30 19:38:52,133 INFO L137 encePairwiseOnDemand]: 364/382 looper letters, 1312 selfloop transitions, 296 changer transitions 31/1662 dead transitions. [2023-08-30 19:38:52,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 1662 transitions, 17149 flow [2023-08-30 19:38:52,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-08-30 19:38:52,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2023-08-30 19:38:52,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 9430 transitions. [2023-08-30 19:38:52,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.493717277486911 [2023-08-30 19:38:52,167 INFO L72 ComplementDD]: Start complementDD. Operand 50 states and 9430 transitions. [2023-08-30 19:38:52,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 9430 transitions. [2023-08-30 19:38:52,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 19:38:52,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 50 states and 9430 transitions. [2023-08-30 19:38:52,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 51 states, 50 states have (on average 188.6) internal successors, (9430), 50 states have internal predecessors, (9430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:38:52,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 51 states, 51 states have (on average 382.0) internal successors, (19482), 51 states have internal predecessors, (19482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:38:52,203 INFO L81 ComplementDD]: Finished complementDD. Result has 51 states, 51 states have (on average 382.0) internal successors, (19482), 51 states have internal predecessors, (19482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:38:52,203 INFO L175 Difference]: Start difference. First operand has 374 places, 1025 transitions, 8974 flow. Second operand 50 states and 9430 transitions. [2023-08-30 19:38:52,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 1662 transitions, 17149 flow [2023-08-30 19:39:19,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 1662 transitions, 16056 flow, removed 541 selfloop flow, removed 2 redundant places. [2023-08-30 19:39:19,932 INFO L231 Difference]: Finished difference. Result has 451 places, 1239 transitions, 11793 flow [2023-08-30 19:39:19,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=382, PETRI_DIFFERENCE_MINUEND_FLOW=7909, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1025, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=898, PETRI_DIFFERENCE_SUBTRAHEND_STATES=50, PETRI_FLOW=11793, PETRI_PLACES=451, PETRI_TRANSITIONS=1239} [2023-08-30 19:39:19,934 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, 360 predicate places. [2023-08-30 19:39:19,934 INFO L495 AbstractCegarLoop]: Abstraction has has 451 places, 1239 transitions, 11793 flow [2023-08-30 19:39:19,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 178.52631578947367) internal successors, (3392), 19 states have internal predecessors, (3392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:39:19,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 19:39:19,934 INFO L208 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] [2023-08-30 19:39:19,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 19:39:19,935 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2023-08-30 19:39:19,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 19:39:19,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1933339520, now seen corresponding path program 3 times [2023-08-30 19:39:19,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 19:39:19,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615306487] [2023-08-30 19:39:19,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 19:39:19,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 19:39:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 19:39:20,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 19:39:20,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 19:39:20,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615306487] [2023-08-30 19:39:20,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615306487] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 19:39:20,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 19:39:20,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-08-30 19:39:20,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132067866] [2023-08-30 19:39:20,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 19:39:20,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-08-30 19:39:20,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 19:39:20,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-08-30 19:39:20,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2023-08-30 19:39:21,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 382 [2023-08-30 19:39:21,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 1239 transitions, 11793 flow. Second operand has 21 states, 21 states have (on average 177.28571428571428) internal successors, (3723), 21 states have internal predecessors, (3723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 19:39:21,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 19:39:21,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 382 [2023-08-30 19:39:21,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand