./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/queue_longest.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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 ../sv-benchmarks/c/pthread/queue_longest.i -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 5fb3c623242420f3b3352ce2377df781fcc1efd56f82dd0011f9620e127821b3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 08:31:22,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 08:31:22,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 08:31:22,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 08:31:22,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 08:31:22,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 08:31:22,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 08:31:22,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 08:31:22,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 08:31:22,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 08:31:22,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 08:31:22,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 08:31:22,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 08:31:22,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 08:31:22,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 08:31:22,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 08:31:22,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 08:31:22,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 08:31:22,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 08:31:22,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 08:31:22,847 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 08:31:22,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 08:31:22,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 08:31:22,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 08:31:22,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 08:31:22,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 08:31:22,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 08:31:22,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 08:31:22,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 08:31:22,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 08:31:22,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 08:31:22,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 08:31:22,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 08:31:22,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 08:31:22,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 08:31:22,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 08:31:22,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 08:31:22,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 08:31:22,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 08:31:22,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 08:31:22,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 08:31:22,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 08:31:22,866 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 08:31:22,892 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 08:31:22,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 08:31:22,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 08:31:22,894 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 08:31:22,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 08:31:22,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 08:31:22,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 08:31:22,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 08:31:22,895 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 08:31:22,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 08:31:22,896 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 08:31:22,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 08:31:22,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 08:31:22,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 08:31:22,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 08:31:22,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 08:31:22,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 08:31:22,897 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 08:31:22,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 08:31:22,898 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 08:31:22,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 08:31:22,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 08:31:22,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 08:31:22,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 08:31:22,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:31:22,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 08:31:22,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 08:31:22,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 08:31:22,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 08:31:22,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 08:31:22,900 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 08:31:22,900 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 08:31:22,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 08:31:22,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fb3c623242420f3b3352ce2377df781fcc1efd56f82dd0011f9620e127821b3 [2022-07-21 08:31:23,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 08:31:23,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 08:31:23,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 08:31:23,161 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 08:31:23,161 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 08:31:23,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/queue_longest.i [2022-07-21 08:31:23,207 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7713799b/8ff4e14d6e1145b98b9985ff65f42ea2/FLAGfa6878cae [2022-07-21 08:31:23,623 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 08:31:23,624 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i [2022-07-21 08:31:23,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7713799b/8ff4e14d6e1145b98b9985ff65f42ea2/FLAGfa6878cae [2022-07-21 08:31:23,650 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7713799b/8ff4e14d6e1145b98b9985ff65f42ea2 [2022-07-21 08:31:23,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 08:31:23,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 08:31:23,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 08:31:23,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 08:31:23,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 08:31:23,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:31:23" (1/1) ... [2022-07-21 08:31:23,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147dac7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:31:23, skipping insertion in model container [2022-07-21 08:31:23,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:31:23" (1/1) ... [2022-07-21 08:31:23,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 08:31:23,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 08:31:24,037 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i[43296,43309] [2022-07-21 08:31:24,043 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i[43503,43516] [2022-07-21 08:31:24,047 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i[43783,43796] [2022-07-21 08:31:24,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:31:24,058 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 08:31:24,082 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i[43296,43309] [2022-07-21 08:31:24,085 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i[43503,43516] [2022-07-21 08:31:24,087 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/queue_longest.i[43783,43796] [2022-07-21 08:31:24,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:31:24,133 INFO L208 MainTranslator]: Completed translation [2022-07-21 08:31:24,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:31:24 WrapperNode [2022-07-21 08:31:24,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 08:31:24,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 08:31:24,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 08:31:24,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 08:31:24,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:31:24" (1/1) ... [2022-07-21 08:31:24,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:31:24" (1/1) ... [2022-07-21 08:31:24,186 INFO L137 Inliner]: procedures = 274, calls = 62, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 243 [2022-07-21 08:31:24,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 08:31:24,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 08:31:24,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 08:31:24,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 08:31:24,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:31:24" (1/1) ... [2022-07-21 08:31:24,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:31:24" (1/1) ... [2022-07-21 08:31:24,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:31:24" (1/1) ... [2022-07-21 08:31:24,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:31:24" (1/1) ... [2022-07-21 08:31:24,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:31:24" (1/1) ... [2022-07-21 08:31:24,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:31:24" (1/1) ... [2022-07-21 08:31:24,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:31:24" (1/1) ... [2022-07-21 08:31:24,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 08:31:24,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 08:31:24,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 08:31:24,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 08:31:24,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:31:24" (1/1) ... [2022-07-21 08:31:24,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:31:24,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 08:31:24,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 08:31:24,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 08:31:24,273 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-07-21 08:31:24,273 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-07-21 08:31:24,273 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-07-21 08:31:24,273 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-07-21 08:31:24,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 08:31:24,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 08:31:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 08:31:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 08:31:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-21 08:31:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 08:31:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 08:31:24,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 08:31:24,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 08:31:24,276 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-21 08:31:24,410 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 08:31:24,424 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 08:31:24,741 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 08:31:24,748 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 08:31:24,748 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 08:31:24,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:31:24 BoogieIcfgContainer [2022-07-21 08:31:24,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 08:31:24,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 08:31:24,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 08:31:24,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 08:31:24,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:31:23" (1/3) ... [2022-07-21 08:31:24,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0b8bb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:31:24, skipping insertion in model container [2022-07-21 08:31:24,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:31:24" (2/3) ... [2022-07-21 08:31:24,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b0b8bb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:31:24, skipping insertion in model container [2022-07-21 08:31:24,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:31:24" (3/3) ... [2022-07-21 08:31:24,755 INFO L111 eAbstractionObserver]: Analyzing ICFG queue_longest.i [2022-07-21 08:31:24,758 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-21 08:31:24,763 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 08:31:24,763 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-07-21 08:31:24,763 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-21 08:31:24,830 INFO L135 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-07-21 08:31:24,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 266 places, 274 transitions, 564 flow [2022-07-21 08:31:24,961 INFO L129 PetriNetUnfolder]: 15/272 cut-off events. [2022-07-21 08:31:24,962 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-07-21 08:31:24,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 272 events. 15/272 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 363 event pairs, 0 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 198. Up to 2 conditions per place. [2022-07-21 08:31:24,968 INFO L82 GeneralOperation]: Start removeDead. Operand has 266 places, 274 transitions, 564 flow [2022-07-21 08:31:24,976 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 262 transitions, 533 flow [2022-07-21 08:31:24,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 08:31:24,999 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@38aea03e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@770dba9 [2022-07-21 08:31:24,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-07-21 08:31:25,016 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2022-07-21 08:31:25,016 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-21 08:31:25,017 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:31:25,017 INFO L200 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] [2022-07-21 08:31:25,018 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:31:25,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:31:25,022 INFO L85 PathProgramCache]: Analyzing trace with hash -266547570, now seen corresponding path program 1 times [2022-07-21 08:31:25,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:31:25,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767738524] [2022-07-21 08:31:25,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:31:25,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:31:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:31:25,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:31:25,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:31:25,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767738524] [2022-07-21 08:31:25,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767738524] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:31:25,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:31:25,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 08:31:25,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603691229] [2022-07-21 08:31:25,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:31:25,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 08:31:25,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:31:25,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 08:31:25,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 08:31:25,250 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 274 [2022-07-21 08:31:25,255 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 262 transitions, 533 flow. Second operand has 2 states, 2 states have (on average 261.5) internal successors, (523), 2 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:25,255 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:31:25,255 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 274 [2022-07-21 08:31:25,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:31:25,304 INFO L129 PetriNetUnfolder]: 10/251 cut-off events. [2022-07-21 08:31:25,305 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-07-21 08:31:25,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 251 events. 10/251 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 285 event pairs, 0 based on Foata normal form. 7/246 useless extension candidates. Maximal degree in co-relation 191. Up to 4 conditions per place. [2022-07-21 08:31:25,309 INFO L132 encePairwiseOnDemand]: 269/274 looper letters, 3 selfloop transitions, 0 changer transitions 0/251 dead transitions. [2022-07-21 08:31:25,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 251 transitions, 517 flow [2022-07-21 08:31:25,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 08:31:25,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-07-21 08:31:25,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 530 transitions. [2022-07-21 08:31:25,322 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9671532846715328 [2022-07-21 08:31:25,323 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 530 transitions. [2022-07-21 08:31:25,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 530 transitions. [2022-07-21 08:31:25,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:31:25,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 530 transitions. [2022-07-21 08:31:25,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 265.0) internal successors, (530), 2 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:25,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:25,337 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 274.0) internal successors, (822), 3 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:25,339 INFO L186 Difference]: Start difference. First operand has 254 places, 262 transitions, 533 flow. Second operand 2 states and 530 transitions. [2022-07-21 08:31:25,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 251 transitions, 517 flow [2022-07-21 08:31:25,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 251 transitions, 512 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-07-21 08:31:25,347 INFO L242 Difference]: Finished difference. Result has 246 places, 251 transitions, 506 flow [2022-07-21 08:31:25,349 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=506, PETRI_PLACES=246, PETRI_TRANSITIONS=251} [2022-07-21 08:31:25,354 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, -8 predicate places. [2022-07-21 08:31:25,354 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 251 transitions, 506 flow [2022-07-21 08:31:25,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 261.5) internal successors, (523), 2 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:25,355 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:31:25,355 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:31:25,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 08:31:25,356 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:31:25,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:31:25,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1627698218, now seen corresponding path program 1 times [2022-07-21 08:31:25,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:31:25,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052634293] [2022-07-21 08:31:25,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:31:25,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:31:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:31:25,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:31:25,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:31:25,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052634293] [2022-07-21 08:31:25,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052634293] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:31:25,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:31:25,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 08:31:25,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445520850] [2022-07-21 08:31:25,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:31:25,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 08:31:25,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:31:25,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 08:31:25,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-21 08:31:25,673 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 274 [2022-07-21 08:31:25,678 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 251 transitions, 506 flow. Second operand has 12 states, 12 states have (on average 199.75) internal successors, (2397), 12 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:25,678 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:31:25,678 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 274 [2022-07-21 08:31:25,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:31:26,449 INFO L129 PetriNetUnfolder]: 1003/4117 cut-off events. [2022-07-21 08:31:26,449 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-07-21 08:31:26,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5628 conditions, 4117 events. 1003/4117 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 33911 event pairs, 789 based on Foata normal form. 0/3832 useless extension candidates. Maximal degree in co-relation 5625. Up to 1435 conditions per place. [2022-07-21 08:31:26,466 INFO L132 encePairwiseOnDemand]: 261/274 looper letters, 52 selfloop transitions, 12 changer transitions 0/247 dead transitions. [2022-07-21 08:31:26,466 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 247 transitions, 626 flow [2022-07-21 08:31:26,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 08:31:26,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-21 08:31:26,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2626 transitions. [2022-07-21 08:31:26,471 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7372262773722628 [2022-07-21 08:31:26,471 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2626 transitions. [2022-07-21 08:31:26,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2626 transitions. [2022-07-21 08:31:26,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:31:26,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2626 transitions. [2022-07-21 08:31:26,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 202.0) internal successors, (2626), 13 states have internal predecessors, (2626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 274.0) internal successors, (3836), 14 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,482 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 274.0) internal successors, (3836), 14 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,482 INFO L186 Difference]: Start difference. First operand has 246 places, 251 transitions, 506 flow. Second operand 13 states and 2626 transitions. [2022-07-21 08:31:26,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 247 transitions, 626 flow [2022-07-21 08:31:26,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 247 transitions, 626 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-07-21 08:31:26,486 INFO L242 Difference]: Finished difference. Result has 255 places, 247 transitions, 522 flow [2022-07-21 08:31:26,487 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=522, PETRI_PLACES=255, PETRI_TRANSITIONS=247} [2022-07-21 08:31:26,487 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 1 predicate places. [2022-07-21 08:31:26,488 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 247 transitions, 522 flow [2022-07-21 08:31:26,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 199.75) internal successors, (2397), 12 states have internal predecessors, (2397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,489 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:31:26,489 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:31:26,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 08:31:26,489 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:31:26,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:31:26,490 INFO L85 PathProgramCache]: Analyzing trace with hash -2013468752, now seen corresponding path program 1 times [2022-07-21 08:31:26,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:31:26,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756555329] [2022-07-21 08:31:26,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:31:26,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:31:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:31:26,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:31:26,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:31:26,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756555329] [2022-07-21 08:31:26,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756555329] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:31:26,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:31:26,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 08:31:26,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927412959] [2022-07-21 08:31:26,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:31:26,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 08:31:26,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:31:26,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 08:31:26,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 08:31:26,582 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 274 [2022-07-21 08:31:26,583 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 247 transitions, 522 flow. Second operand has 4 states, 4 states have (on average 251.75) internal successors, (1007), 4 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,583 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:31:26,583 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 274 [2022-07-21 08:31:26,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:31:26,657 INFO L129 PetriNetUnfolder]: 26/432 cut-off events. [2022-07-21 08:31:26,658 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-21 08:31:26,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 432 events. 26/432 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1084 event pairs, 2 based on Foata normal form. 0/407 useless extension candidates. Maximal degree in co-relation 495. Up to 13 conditions per place. [2022-07-21 08:31:26,660 INFO L132 encePairwiseOnDemand]: 268/274 looper letters, 9 selfloop transitions, 5 changer transitions 0/247 dead transitions. [2022-07-21 08:31:26,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 247 transitions, 554 flow [2022-07-21 08:31:26,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 08:31:26,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-07-21 08:31:26,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1015 transitions. [2022-07-21 08:31:26,662 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.926094890510949 [2022-07-21 08:31:26,662 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1015 transitions. [2022-07-21 08:31:26,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1015 transitions. [2022-07-21 08:31:26,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:31:26,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1015 transitions. [2022-07-21 08:31:26,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 253.75) internal successors, (1015), 4 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 274.0) internal successors, (1370), 5 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,666 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 274.0) internal successors, (1370), 5 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,667 INFO L186 Difference]: Start difference. First operand has 255 places, 247 transitions, 522 flow. Second operand 4 states and 1015 transitions. [2022-07-21 08:31:26,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 247 transitions, 554 flow [2022-07-21 08:31:26,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 247 transitions, 531 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-07-21 08:31:26,670 INFO L242 Difference]: Finished difference. Result has 246 places, 245 transitions, 505 flow [2022-07-21 08:31:26,671 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=505, PETRI_PLACES=246, PETRI_TRANSITIONS=245} [2022-07-21 08:31:26,671 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, -8 predicate places. [2022-07-21 08:31:26,671 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 245 transitions, 505 flow [2022-07-21 08:31:26,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 251.75) internal successors, (1007), 4 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,672 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:31:26,672 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:31:26,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 08:31:26,673 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:31:26,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:31:26,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1617079602, now seen corresponding path program 1 times [2022-07-21 08:31:26,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:31:26,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511093504] [2022-07-21 08:31:26,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:31:26,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:31:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:31:26,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:31:26,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:31:26,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511093504] [2022-07-21 08:31:26,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511093504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:31:26,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:31:26,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 08:31:26,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252379207] [2022-07-21 08:31:26,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:31:26,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 08:31:26,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:31:26,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 08:31:26,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 08:31:26,721 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 274 [2022-07-21 08:31:26,722 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 245 transitions, 505 flow. Second operand has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,722 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:31:26,722 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 274 [2022-07-21 08:31:26,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:31:26,779 INFO L129 PetriNetUnfolder]: 33/527 cut-off events. [2022-07-21 08:31:26,779 INFO L130 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2022-07-21 08:31:26,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 586 conditions, 527 events. 33/527 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1268 event pairs, 2 based on Foata normal form. 0/493 useless extension candidates. Maximal degree in co-relation 582. Up to 23 conditions per place. [2022-07-21 08:31:26,782 INFO L132 encePairwiseOnDemand]: 270/274 looper letters, 10 selfloop transitions, 3 changer transitions 0/249 dead transitions. [2022-07-21 08:31:26,782 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 249 transitions, 542 flow [2022-07-21 08:31:26,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 08:31:26,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-21 08:31:26,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 779 transitions. [2022-07-21 08:31:26,784 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9476885644768857 [2022-07-21 08:31:26,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 779 transitions. [2022-07-21 08:31:26,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 779 transitions. [2022-07-21 08:31:26,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:31:26,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 779 transitions. [2022-07-21 08:31:26,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 259.6666666666667) internal successors, (779), 3 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,790 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,790 INFO L186 Difference]: Start difference. First operand has 246 places, 245 transitions, 505 flow. Second operand 3 states and 779 transitions. [2022-07-21 08:31:26,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 249 transitions, 542 flow [2022-07-21 08:31:26,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 249 transitions, 532 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-07-21 08:31:26,795 INFO L242 Difference]: Finished difference. Result has 246 places, 246 transitions, 510 flow [2022-07-21 08:31:26,795 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=510, PETRI_PLACES=246, PETRI_TRANSITIONS=246} [2022-07-21 08:31:26,796 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, -8 predicate places. [2022-07-21 08:31:26,796 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 246 transitions, 510 flow [2022-07-21 08:31:26,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,797 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:31:26,797 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:31:26,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 08:31:26,797 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:31:26,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:31:26,798 INFO L85 PathProgramCache]: Analyzing trace with hash 771775214, now seen corresponding path program 1 times [2022-07-21 08:31:26,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:31:26,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123089312] [2022-07-21 08:31:26,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:31:26,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:31:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:31:26,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:31:26,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:31:26,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123089312] [2022-07-21 08:31:26,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123089312] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:31:26,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:31:26,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 08:31:26,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277477653] [2022-07-21 08:31:26,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:31:26,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 08:31:26,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:31:26,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 08:31:26,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 08:31:26,855 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 274 [2022-07-21 08:31:26,856 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 246 transitions, 510 flow. Second operand has 4 states, 4 states have (on average 253.75) internal successors, (1015), 4 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,856 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:31:26,856 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 274 [2022-07-21 08:31:26,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:31:26,970 INFO L129 PetriNetUnfolder]: 51/836 cut-off events. [2022-07-21 08:31:26,970 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-07-21 08:31:26,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 945 conditions, 836 events. 51/836 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3004 event pairs, 7 based on Foata normal form. 0/788 useless extension candidates. Maximal degree in co-relation 940. Up to 27 conditions per place. [2022-07-21 08:31:26,974 INFO L132 encePairwiseOnDemand]: 269/274 looper letters, 15 selfloop transitions, 5 changer transitions 0/254 dead transitions. [2022-07-21 08:31:26,975 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 254 transitions, 573 flow [2022-07-21 08:31:26,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 08:31:26,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-07-21 08:31:26,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1281 transitions. [2022-07-21 08:31:26,977 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.935036496350365 [2022-07-21 08:31:26,977 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1281 transitions. [2022-07-21 08:31:26,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1281 transitions. [2022-07-21 08:31:26,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:31:26,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1281 transitions. [2022-07-21 08:31:26,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 256.2) internal successors, (1281), 5 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 274.0) internal successors, (1644), 6 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,982 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 274.0) internal successors, (1644), 6 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,982 INFO L186 Difference]: Start difference. First operand has 246 places, 246 transitions, 510 flow. Second operand 5 states and 1281 transitions. [2022-07-21 08:31:26,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 254 transitions, 573 flow [2022-07-21 08:31:26,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 254 transitions, 570 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-21 08:31:26,986 INFO L242 Difference]: Finished difference. Result has 252 places, 249 transitions, 537 flow [2022-07-21 08:31:26,986 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=537, PETRI_PLACES=252, PETRI_TRANSITIONS=249} [2022-07-21 08:31:26,987 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, -2 predicate places. [2022-07-21 08:31:26,987 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 249 transitions, 537 flow [2022-07-21 08:31:26,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 253.75) internal successors, (1015), 4 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:26,988 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:31:26,988 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:31:26,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 08:31:26,988 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:31:26,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:31:26,989 INFO L85 PathProgramCache]: Analyzing trace with hash -703749757, now seen corresponding path program 1 times [2022-07-21 08:31:26,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:31:26,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201555013] [2022-07-21 08:31:26,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:31:26,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:31:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:31:27,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:31:27,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:31:27,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201555013] [2022-07-21 08:31:27,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201555013] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:31:27,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:31:27,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-21 08:31:27,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182726008] [2022-07-21 08:31:27,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:31:27,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-21 08:31:27,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:31:27,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-21 08:31:27,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-07-21 08:31:27,342 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 274 [2022-07-21 08:31:27,344 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 249 transitions, 537 flow. Second operand has 17 states, 17 states have (on average 187.41176470588235) internal successors, (3186), 17 states have internal predecessors, (3186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:27,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:31:27,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 274 [2022-07-21 08:31:27,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:31:28,482 INFO L129 PetriNetUnfolder]: 1599/6669 cut-off events. [2022-07-21 08:31:28,482 INFO L130 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-07-21 08:31:28,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9623 conditions, 6669 events. 1599/6669 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 58360 event pairs, 1290 based on Foata normal form. 0/6318 useless extension candidates. Maximal degree in co-relation 9616. Up to 2556 conditions per place. [2022-07-21 08:31:28,515 INFO L132 encePairwiseOnDemand]: 258/274 looper letters, 79 selfloop transitions, 20 changer transitions 0/271 dead transitions. [2022-07-21 08:31:28,516 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 271 transitions, 781 flow [2022-07-21 08:31:28,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 08:31:28,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-07-21 08:31:28,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2876 transitions. [2022-07-21 08:31:28,520 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6997566909975669 [2022-07-21 08:31:28,520 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2876 transitions. [2022-07-21 08:31:28,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2876 transitions. [2022-07-21 08:31:28,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:31:28,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2876 transitions. [2022-07-21 08:31:28,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 191.73333333333332) internal successors, (2876), 15 states have internal predecessors, (2876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:28,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 274.0) internal successors, (4384), 16 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:28,530 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 274.0) internal successors, (4384), 16 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:28,531 INFO L186 Difference]: Start difference. First operand has 252 places, 249 transitions, 537 flow. Second operand 15 states and 2876 transitions. [2022-07-21 08:31:28,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 271 transitions, 781 flow [2022-07-21 08:31:28,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 271 transitions, 781 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-07-21 08:31:28,535 INFO L242 Difference]: Finished difference. Result has 272 places, 262 transitions, 644 flow [2022-07-21 08:31:28,536 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=644, PETRI_PLACES=272, PETRI_TRANSITIONS=262} [2022-07-21 08:31:28,536 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 18 predicate places. [2022-07-21 08:31:28,536 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 262 transitions, 644 flow [2022-07-21 08:31:28,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 187.41176470588235) internal successors, (3186), 17 states have internal predecessors, (3186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:28,538 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:31:28,538 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:31:28,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 08:31:28,538 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:31:28,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:31:28,539 INFO L85 PathProgramCache]: Analyzing trace with hash -940168002, now seen corresponding path program 1 times [2022-07-21 08:31:28,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:31:28,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583559398] [2022-07-21 08:31:28,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:31:28,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:31:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:31:29,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:31:29,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:31:29,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583559398] [2022-07-21 08:31:29,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583559398] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:31:29,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:31:29,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-07-21 08:31:29,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975439847] [2022-07-21 08:31:29,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:31:29,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-21 08:31:29,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:31:29,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-21 08:31:29,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2022-07-21 08:31:29,501 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 274 [2022-07-21 08:31:29,504 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 262 transitions, 644 flow. Second operand has 27 states, 27 states have (on average 173.92592592592592) internal successors, (4696), 27 states have internal predecessors, (4696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:29,504 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:31:29,504 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 274 [2022-07-21 08:31:29,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:31:32,045 INFO L129 PetriNetUnfolder]: 1457/6029 cut-off events. [2022-07-21 08:31:32,046 INFO L130 PetriNetUnfolder]: For 117/120 co-relation queries the response was YES. [2022-07-21 08:31:32,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8866 conditions, 6029 events. 1457/6029 cut-off events. For 117/120 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 51340 event pairs, 1160 based on Foata normal form. 2/5754 useless extension candidates. Maximal degree in co-relation 8852. Up to 2311 conditions per place. [2022-07-21 08:31:32,076 INFO L132 encePairwiseOnDemand]: 243/274 looper letters, 88 selfloop transitions, 45 changer transitions 0/297 dead transitions. [2022-07-21 08:31:32,077 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 297 transitions, 1004 flow [2022-07-21 08:31:32,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-21 08:31:32,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-07-21 08:31:32,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4778 transitions. [2022-07-21 08:31:32,085 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6458502297918356 [2022-07-21 08:31:32,085 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4778 transitions. [2022-07-21 08:31:32,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4778 transitions. [2022-07-21 08:31:32,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:31:32,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4778 transitions. [2022-07-21 08:31:32,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 176.96296296296296) internal successors, (4778), 27 states have internal predecessors, (4778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:32,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 274.0) internal successors, (7672), 28 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:32,101 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 274.0) internal successors, (7672), 28 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:32,102 INFO L186 Difference]: Start difference. First operand has 272 places, 262 transitions, 644 flow. Second operand 27 states and 4778 transitions. [2022-07-21 08:31:32,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 297 transitions, 1004 flow [2022-07-21 08:31:32,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 297 transitions, 991 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-07-21 08:31:32,107 INFO L242 Difference]: Finished difference. Result has 303 places, 284 transitions, 870 flow [2022-07-21 08:31:32,108 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=870, PETRI_PLACES=303, PETRI_TRANSITIONS=284} [2022-07-21 08:31:32,108 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 49 predicate places. [2022-07-21 08:31:32,108 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 284 transitions, 870 flow [2022-07-21 08:31:32,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 173.92592592592592) internal successors, (4696), 27 states have internal predecessors, (4696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:32,110 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:31:32,110 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:31:32,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 08:31:32,110 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:31:32,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:31:32,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1623156073, now seen corresponding path program 1 times [2022-07-21 08:31:32,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:31:32,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806063061] [2022-07-21 08:31:32,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:31:32,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:31:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:31:32,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:31:32,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:31:32,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806063061] [2022-07-21 08:31:32,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806063061] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:31:32,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:31:32,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-21 08:31:32,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606704281] [2022-07-21 08:31:32,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:31:32,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 08:31:32,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:31:32,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 08:31:32,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-07-21 08:31:32,589 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 274 [2022-07-21 08:31:32,591 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 284 transitions, 870 flow. Second operand has 18 states, 18 states have (on average 176.83333333333334) internal successors, (3183), 18 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:32,591 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:31:32,591 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 274 [2022-07-21 08:31:32,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:31:34,114 INFO L129 PetriNetUnfolder]: 1619/6777 cut-off events. [2022-07-21 08:31:34,115 INFO L130 PetriNetUnfolder]: For 451/455 co-relation queries the response was YES. [2022-07-21 08:31:34,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10294 conditions, 6777 events. 1619/6777 cut-off events. For 451/455 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 59251 event pairs, 734 based on Foata normal form. 3/6433 useless extension candidates. Maximal degree in co-relation 10268. Up to 2470 conditions per place. [2022-07-21 08:31:34,159 INFO L132 encePairwiseOnDemand]: 253/274 looper letters, 117 selfloop transitions, 34 changer transitions 0/320 dead transitions. [2022-07-21 08:31:34,159 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 320 transitions, 1284 flow [2022-07-21 08:31:34,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 08:31:34,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-07-21 08:31:34,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2913 transitions. [2022-07-21 08:31:34,166 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6644616788321168 [2022-07-21 08:31:34,166 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2913 transitions. [2022-07-21 08:31:34,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2913 transitions. [2022-07-21 08:31:34,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:31:34,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2913 transitions. [2022-07-21 08:31:34,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 182.0625) internal successors, (2913), 16 states have internal predecessors, (2913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:34,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 274.0) internal successors, (4658), 17 states have internal predecessors, (4658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:34,177 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 274.0) internal successors, (4658), 17 states have internal predecessors, (4658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:34,177 INFO L186 Difference]: Start difference. First operand has 303 places, 284 transitions, 870 flow. Second operand 16 states and 2913 transitions. [2022-07-21 08:31:34,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 320 transitions, 1284 flow [2022-07-21 08:31:34,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 320 transitions, 1241 flow, removed 8 selfloop flow, removed 12 redundant places. [2022-07-21 08:31:34,186 INFO L242 Difference]: Finished difference. Result has 311 places, 294 transitions, 994 flow [2022-07-21 08:31:34,187 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=994, PETRI_PLACES=311, PETRI_TRANSITIONS=294} [2022-07-21 08:31:34,187 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 57 predicate places. [2022-07-21 08:31:34,187 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 294 transitions, 994 flow [2022-07-21 08:31:34,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.83333333333334) internal successors, (3183), 18 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:34,188 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:31:34,188 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:31:34,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 08:31:34,189 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:31:34,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:31:34,189 INFO L85 PathProgramCache]: Analyzing trace with hash -156557425, now seen corresponding path program 2 times [2022-07-21 08:31:34,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:31:34,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932638336] [2022-07-21 08:31:34,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:31:34,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:31:34,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:31:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:31:34,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:31:34,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932638336] [2022-07-21 08:31:34,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932638336] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:31:34,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:31:34,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-21 08:31:34,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198941065] [2022-07-21 08:31:34,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:31:34,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 08:31:34,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:31:34,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 08:31:34,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-07-21 08:31:34,657 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 274 [2022-07-21 08:31:34,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 294 transitions, 994 flow. Second operand has 18 states, 18 states have (on average 176.83333333333334) internal successors, (3183), 18 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:34,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:31:34,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 274 [2022-07-21 08:31:34,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:31:36,529 INFO L129 PetriNetUnfolder]: 1640/6855 cut-off events. [2022-07-21 08:31:36,529 INFO L130 PetriNetUnfolder]: For 708/712 co-relation queries the response was YES. [2022-07-21 08:31:36,560 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10633 conditions, 6855 events. 1640/6855 cut-off events. For 708/712 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 59968 event pairs, 735 based on Foata normal form. 3/6511 useless extension candidates. Maximal degree in co-relation 10602. Up to 2475 conditions per place. [2022-07-21 08:31:36,580 INFO L132 encePairwiseOnDemand]: 254/274 looper letters, 118 selfloop transitions, 38 changer transitions 0/325 dead transitions. [2022-07-21 08:31:36,581 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 325 transitions, 1427 flow [2022-07-21 08:31:36,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 08:31:36,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-07-21 08:31:36,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2737 transitions. [2022-07-21 08:31:36,585 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6659367396593674 [2022-07-21 08:31:36,585 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2737 transitions. [2022-07-21 08:31:36,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2737 transitions. [2022-07-21 08:31:36,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:31:36,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2737 transitions. [2022-07-21 08:31:36,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 182.46666666666667) internal successors, (2737), 15 states have internal predecessors, (2737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:36,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 274.0) internal successors, (4384), 16 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:36,594 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 274.0) internal successors, (4384), 16 states have internal predecessors, (4384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:36,595 INFO L186 Difference]: Start difference. First operand has 311 places, 294 transitions, 994 flow. Second operand 15 states and 2737 transitions. [2022-07-21 08:31:36,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 325 transitions, 1427 flow [2022-07-21 08:31:36,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 325 transitions, 1395 flow, removed 6 selfloop flow, removed 10 redundant places. [2022-07-21 08:31:36,603 INFO L242 Difference]: Finished difference. Result has 319 places, 300 transitions, 1140 flow [2022-07-21 08:31:36,604 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=968, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1140, PETRI_PLACES=319, PETRI_TRANSITIONS=300} [2022-07-21 08:31:36,604 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 65 predicate places. [2022-07-21 08:31:36,605 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 300 transitions, 1140 flow [2022-07-21 08:31:36,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.83333333333334) internal successors, (3183), 18 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:36,605 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:31:36,606 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:31:36,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 08:31:36,606 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:31:36,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:31:36,606 INFO L85 PathProgramCache]: Analyzing trace with hash 655539223, now seen corresponding path program 3 times [2022-07-21 08:31:36,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:31:36,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18845295] [2022-07-21 08:31:36,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:31:36,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:31:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:31:36,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:31:36,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:31:36,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18845295] [2022-07-21 08:31:36,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18845295] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:31:37,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:31:37,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-21 08:31:37,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833008563] [2022-07-21 08:31:37,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:31:37,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 08:31:37,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:31:37,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 08:31:37,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-07-21 08:31:37,002 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 274 [2022-07-21 08:31:37,004 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 300 transitions, 1140 flow. Second operand has 18 states, 18 states have (on average 176.83333333333334) internal successors, (3183), 18 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:37,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:31:37,004 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 274 [2022-07-21 08:31:37,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:31:38,377 INFO L129 PetriNetUnfolder]: 1625/6840 cut-off events. [2022-07-21 08:31:38,377 INFO L130 PetriNetUnfolder]: For 1143/1147 co-relation queries the response was YES. [2022-07-21 08:31:38,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10698 conditions, 6840 events. 1625/6840 cut-off events. For 1143/1147 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 60100 event pairs, 741 based on Foata normal form. 6/6497 useless extension candidates. Maximal degree in co-relation 10664. Up to 2414 conditions per place. [2022-07-21 08:31:38,428 INFO L132 encePairwiseOnDemand]: 257/274 looper letters, 101 selfloop transitions, 36 changer transitions 0/306 dead transitions. [2022-07-21 08:31:38,428 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 306 transitions, 1422 flow [2022-07-21 08:31:38,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 08:31:38,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-07-21 08:31:38,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2535 transitions. [2022-07-21 08:31:38,431 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6608446298227321 [2022-07-21 08:31:38,431 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2535 transitions. [2022-07-21 08:31:38,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2535 transitions. [2022-07-21 08:31:38,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:31:38,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2535 transitions. [2022-07-21 08:31:38,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 181.07142857142858) internal successors, (2535), 14 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:38,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 274.0) internal successors, (4110), 15 states have internal predecessors, (4110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:38,439 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 274.0) internal successors, (4110), 15 states have internal predecessors, (4110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:38,439 INFO L186 Difference]: Start difference. First operand has 319 places, 300 transitions, 1140 flow. Second operand 14 states and 2535 transitions. [2022-07-21 08:31:38,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 306 transitions, 1422 flow [2022-07-21 08:31:38,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 306 transitions, 1386 flow, removed 4 selfloop flow, removed 11 redundant places. [2022-07-21 08:31:38,447 INFO L242 Difference]: Finished difference. Result has 319 places, 296 transitions, 1154 flow [2022-07-21 08:31:38,448 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1154, PETRI_PLACES=319, PETRI_TRANSITIONS=296} [2022-07-21 08:31:38,448 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 65 predicate places. [2022-07-21 08:31:38,448 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 296 transitions, 1154 flow [2022-07-21 08:31:38,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 176.83333333333334) internal successors, (3183), 18 states have internal predecessors, (3183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:38,449 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:31:38,449 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:31:38,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 08:31:38,450 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:31:38,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:31:38,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1000254974, now seen corresponding path program 1 times [2022-07-21 08:31:38,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:31:38,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354290628] [2022-07-21 08:31:38,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:31:38,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:31:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:31:39,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:31:39,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:31:39,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354290628] [2022-07-21 08:31:39,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354290628] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:31:39,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:31:39,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-07-21 08:31:39,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931066387] [2022-07-21 08:31:39,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:31:39,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-21 08:31:39,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:31:39,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-21 08:31:39,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=718, Unknown=0, NotChecked=0, Total=812 [2022-07-21 08:31:39,496 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 274 [2022-07-21 08:31:39,499 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 296 transitions, 1154 flow. Second operand has 29 states, 29 states have (on average 163.13793103448276) internal successors, (4731), 29 states have internal predecessors, (4731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:39,499 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:31:39,499 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 274 [2022-07-21 08:31:39,499 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:31:42,315 INFO L129 PetriNetUnfolder]: 847/3524 cut-off events. [2022-07-21 08:31:42,315 INFO L130 PetriNetUnfolder]: For 1183/1186 co-relation queries the response was YES. [2022-07-21 08:31:42,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5962 conditions, 3524 events. 847/3524 cut-off events. For 1183/1186 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 24833 event pairs, 336 based on Foata normal form. 3/3355 useless extension candidates. Maximal degree in co-relation 5929. Up to 1081 conditions per place. [2022-07-21 08:31:42,338 INFO L132 encePairwiseOnDemand]: 245/274 looper letters, 121 selfloop transitions, 52 changer transitions 0/320 dead transitions. [2022-07-21 08:31:42,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 320 transitions, 1567 flow [2022-07-21 08:31:42,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-21 08:31:42,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2022-07-21 08:31:42,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 4489 transitions. [2022-07-21 08:31:42,343 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6067856177345229 [2022-07-21 08:31:42,343 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 4489 transitions. [2022-07-21 08:31:42,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 4489 transitions. [2022-07-21 08:31:42,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:31:42,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 4489 transitions. [2022-07-21 08:31:42,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 166.25925925925927) internal successors, (4489), 27 states have internal predecessors, (4489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:42,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 274.0) internal successors, (7672), 28 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:42,356 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 274.0) internal successors, (7672), 28 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:42,356 INFO L186 Difference]: Start difference. First operand has 319 places, 296 transitions, 1154 flow. Second operand 27 states and 4489 transitions. [2022-07-21 08:31:42,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 320 transitions, 1567 flow [2022-07-21 08:31:42,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 320 transitions, 1475 flow, removed 1 selfloop flow, removed 21 redundant places. [2022-07-21 08:31:42,364 INFO L242 Difference]: Finished difference. Result has 318 places, 287 transitions, 1154 flow [2022-07-21 08:31:42,365 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=1154, PETRI_PLACES=318, PETRI_TRANSITIONS=287} [2022-07-21 08:31:42,365 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 64 predicate places. [2022-07-21 08:31:42,365 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 287 transitions, 1154 flow [2022-07-21 08:31:42,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 163.13793103448276) internal successors, (4731), 29 states have internal predecessors, (4731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:42,366 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:31:42,367 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:31:42,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 08:31:42,367 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:31:42,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:31:42,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1509204245, now seen corresponding path program 1 times [2022-07-21 08:31:42,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:31:42,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868998909] [2022-07-21 08:31:42,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:31:42,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:31:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:31:42,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:31:42,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:31:42,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868998909] [2022-07-21 08:31:42,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868998909] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:31:42,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:31:42,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 08:31:42,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476781969] [2022-07-21 08:31:42,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:31:42,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 08:31:42,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:31:42,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 08:31:42,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 08:31:42,410 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 274 [2022-07-21 08:31:42,411 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 287 transitions, 1154 flow. Second operand has 3 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:42,411 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:31:42,411 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 274 [2022-07-21 08:31:42,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:31:42,499 INFO L129 PetriNetUnfolder]: 62/911 cut-off events. [2022-07-21 08:31:42,500 INFO L130 PetriNetUnfolder]: For 544/545 co-relation queries the response was YES. [2022-07-21 08:31:42,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1485 conditions, 911 events. 62/911 cut-off events. For 544/545 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3746 event pairs, 7 based on Foata normal form. 18/884 useless extension candidates. Maximal degree in co-relation 1455. Up to 39 conditions per place. [2022-07-21 08:31:42,504 INFO L132 encePairwiseOnDemand]: 268/274 looper letters, 12 selfloop transitions, 6 changer transitions 0/289 dead transitions. [2022-07-21 08:31:42,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 289 transitions, 1197 flow [2022-07-21 08:31:42,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 08:31:42,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-21 08:31:42,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 765 transitions. [2022-07-21 08:31:42,506 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9306569343065694 [2022-07-21 08:31:42,506 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 765 transitions. [2022-07-21 08:31:42,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 765 transitions. [2022-07-21 08:31:42,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:31:42,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 765 transitions. [2022-07-21 08:31:42,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:42,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:42,508 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:42,508 INFO L186 Difference]: Start difference. First operand has 318 places, 287 transitions, 1154 flow. Second operand 3 states and 765 transitions. [2022-07-21 08:31:42,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 289 transitions, 1197 flow [2022-07-21 08:31:42,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 289 transitions, 1103 flow, removed 2 selfloop flow, removed 23 redundant places. [2022-07-21 08:31:42,516 INFO L242 Difference]: Finished difference. Result has 297 places, 287 transitions, 1072 flow [2022-07-21 08:31:42,516 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1072, PETRI_PLACES=297, PETRI_TRANSITIONS=287} [2022-07-21 08:31:42,517 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 43 predicate places. [2022-07-21 08:31:42,517 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 287 transitions, 1072 flow [2022-07-21 08:31:42,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:42,518 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:31:42,518 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:31:42,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 08:31:42,518 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:31:42,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:31:42,519 INFO L85 PathProgramCache]: Analyzing trace with hash -849021323, now seen corresponding path program 1 times [2022-07-21 08:31:42,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:31:42,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373530458] [2022-07-21 08:31:42,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:31:42,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:31:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:31:43,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:31:43,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:31:43,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373530458] [2022-07-21 08:31:43,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373530458] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:31:43,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:31:43,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-07-21 08:31:43,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992494185] [2022-07-21 08:31:43,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:31:43,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-21 08:31:43,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:31:43,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-21 08:31:43,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=682, Unknown=0, NotChecked=0, Total=812 [2022-07-21 08:31:43,182 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 274 [2022-07-21 08:31:43,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 287 transitions, 1072 flow. Second operand has 29 states, 29 states have (on average 167.75862068965517) internal successors, (4865), 29 states have internal predecessors, (4865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:43,184 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:31:43,184 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 274 [2022-07-21 08:31:43,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:31:44,882 INFO L129 PetriNetUnfolder]: 393/1832 cut-off events. [2022-07-21 08:31:44,882 INFO L130 PetriNetUnfolder]: For 1081/1085 co-relation queries the response was YES. [2022-07-21 08:31:44,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3796 conditions, 1832 events. 393/1832 cut-off events. For 1081/1085 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 10155 event pairs, 43 based on Foata normal form. 0/1767 useless extension candidates. Maximal degree in co-relation 3766. Up to 359 conditions per place. [2022-07-21 08:31:44,892 INFO L132 encePairwiseOnDemand]: 243/274 looper letters, 141 selfloop transitions, 56 changer transitions 0/342 dead transitions. [2022-07-21 08:31:44,892 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 342 transitions, 1639 flow [2022-07-21 08:31:44,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-21 08:31:44,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-07-21 08:31:44,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4780 transitions. [2022-07-21 08:31:44,897 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6230448383733055 [2022-07-21 08:31:44,897 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4780 transitions. [2022-07-21 08:31:44,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4780 transitions. [2022-07-21 08:31:44,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:31:44,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4780 transitions. [2022-07-21 08:31:44,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 170.71428571428572) internal successors, (4780), 28 states have internal predecessors, (4780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:44,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 274.0) internal successors, (7946), 29 states have internal predecessors, (7946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:44,909 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 274.0) internal successors, (7946), 29 states have internal predecessors, (7946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:44,909 INFO L186 Difference]: Start difference. First operand has 297 places, 287 transitions, 1072 flow. Second operand 28 states and 4780 transitions. [2022-07-21 08:31:44,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 342 transitions, 1639 flow [2022-07-21 08:31:44,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 342 transitions, 1633 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-21 08:31:44,918 INFO L242 Difference]: Finished difference. Result has 328 places, 294 transitions, 1223 flow [2022-07-21 08:31:44,919 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1066, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1223, PETRI_PLACES=328, PETRI_TRANSITIONS=294} [2022-07-21 08:31:44,920 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 74 predicate places. [2022-07-21 08:31:44,920 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 294 transitions, 1223 flow [2022-07-21 08:31:44,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 167.75862068965517) internal successors, (4865), 29 states have internal predecessors, (4865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:44,921 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:31:44,921 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:31:44,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 08:31:44,921 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:31:44,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:31:44,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1556864042, now seen corresponding path program 1 times [2022-07-21 08:31:44,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:31:44,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299650940] [2022-07-21 08:31:44,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:31:44,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:31:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:31:46,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:31:46,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:31:46,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299650940] [2022-07-21 08:31:46,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299650940] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:31:46,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:31:46,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-07-21 08:31:46,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553961233] [2022-07-21 08:31:46,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:31:46,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-07-21 08:31:46,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:31:46,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-07-21 08:31:46,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=925, Unknown=0, NotChecked=0, Total=1056 [2022-07-21 08:31:46,606 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 274 [2022-07-21 08:31:46,608 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 294 transitions, 1223 flow. Second operand has 33 states, 33 states have (on average 155.75757575757575) internal successors, (5140), 33 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:46,608 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:31:46,608 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 274 [2022-07-21 08:31:46,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:31:50,199 INFO L129 PetriNetUnfolder]: 539/2379 cut-off events. [2022-07-21 08:31:50,200 INFO L130 PetriNetUnfolder]: For 1658/1662 co-relation queries the response was YES. [2022-07-21 08:31:50,206 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5116 conditions, 2379 events. 539/2379 cut-off events. For 1658/1662 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 14419 event pairs, 59 based on Foata normal form. 0/2306 useless extension candidates. Maximal degree in co-relation 5080. Up to 378 conditions per place. [2022-07-21 08:31:50,209 INFO L132 encePairwiseOnDemand]: 234/274 looper letters, 184 selfloop transitions, 66 changer transitions 0/386 dead transitions. [2022-07-21 08:31:50,210 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 386 transitions, 2006 flow [2022-07-21 08:31:50,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-07-21 08:31:50,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-07-21 08:31:50,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 5564 transitions. [2022-07-21 08:31:50,215 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5801876955161627 [2022-07-21 08:31:50,215 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 5564 transitions. [2022-07-21 08:31:50,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 5564 transitions. [2022-07-21 08:31:50,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:31:50,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 5564 transitions. [2022-07-21 08:31:50,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 158.97142857142856) internal successors, (5564), 35 states have internal predecessors, (5564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:50,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 274.0) internal successors, (9864), 36 states have internal predecessors, (9864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:50,231 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 274.0) internal successors, (9864), 36 states have internal predecessors, (9864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:50,231 INFO L186 Difference]: Start difference. First operand has 328 places, 294 transitions, 1223 flow. Second operand 35 states and 5564 transitions. [2022-07-21 08:31:50,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 386 transitions, 2006 flow [2022-07-21 08:31:50,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 386 transitions, 1910 flow, removed 0 selfloop flow, removed 21 redundant places. [2022-07-21 08:31:50,241 INFO L242 Difference]: Finished difference. Result has 351 places, 309 transitions, 1373 flow [2022-07-21 08:31:50,242 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1127, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=1373, PETRI_PLACES=351, PETRI_TRANSITIONS=309} [2022-07-21 08:31:50,242 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 97 predicate places. [2022-07-21 08:31:50,242 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 309 transitions, 1373 flow [2022-07-21 08:31:50,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 155.75757575757575) internal successors, (5140), 33 states have internal predecessors, (5140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:50,244 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:31:50,244 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:31:50,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 08:31:50,244 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:31:50,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:31:50,245 INFO L85 PathProgramCache]: Analyzing trace with hash -797621177, now seen corresponding path program 1 times [2022-07-21 08:31:50,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:31:50,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501796991] [2022-07-21 08:31:50,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:31:50,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:31:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:31:53,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:31:53,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:31:53,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501796991] [2022-07-21 08:31:53,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501796991] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:31:53,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:31:53,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2022-07-21 08:31:53,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552147454] [2022-07-21 08:31:53,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:31:53,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-21 08:31:53,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:31:53,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-21 08:31:53,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=2087, Unknown=0, NotChecked=0, Total=2256 [2022-07-21 08:31:53,680 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 274 [2022-07-21 08:31:53,683 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 309 transitions, 1373 flow. Second operand has 48 states, 48 states have (on average 133.3125) internal successors, (6399), 48 states have internal predecessors, (6399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:31:53,683 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:31:53,683 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 274 [2022-07-21 08:31:53,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:32:11,131 INFO L129 PetriNetUnfolder]: 5960/14638 cut-off events. [2022-07-21 08:32:11,131 INFO L130 PetriNetUnfolder]: For 7350/7351 co-relation queries the response was YES. [2022-07-21 08:32:11,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32000 conditions, 14638 events. 5960/14638 cut-off events. For 7350/7351 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 115671 event pairs, 1067 based on Foata normal form. 0/13670 useless extension candidates. Maximal degree in co-relation 31954. Up to 4688 conditions per place. [2022-07-21 08:32:11,218 INFO L132 encePairwiseOnDemand]: 215/274 looper letters, 566 selfloop transitions, 192 changer transitions 65/943 dead transitions. [2022-07-21 08:32:11,219 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 943 transitions, 4854 flow [2022-07-21 08:32:11,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-07-21 08:32:11,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2022-07-21 08:32:11,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 11917 transitions. [2022-07-21 08:32:11,228 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.5116788321167883 [2022-07-21 08:32:11,228 INFO L72 ComplementDD]: Start complementDD. Operand 85 states and 11917 transitions. [2022-07-21 08:32:11,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 11917 transitions. [2022-07-21 08:32:11,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:32:11,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 85 states and 11917 transitions. [2022-07-21 08:32:11,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 86 states, 85 states have (on average 140.2) internal successors, (11917), 85 states have internal predecessors, (11917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:32:11,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 86 states, 86 states have (on average 274.0) internal successors, (23564), 86 states have internal predecessors, (23564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:32:11,265 INFO L81 ComplementDD]: Finished complementDD. Result has 86 states, 86 states have (on average 274.0) internal successors, (23564), 86 states have internal predecessors, (23564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:32:11,265 INFO L186 Difference]: Start difference. First operand has 351 places, 309 transitions, 1373 flow. Second operand 85 states and 11917 transitions. [2022-07-21 08:32:11,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 943 transitions, 4854 flow [2022-07-21 08:32:11,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 943 transitions, 4705 flow, removed 15 selfloop flow, removed 22 redundant places. [2022-07-21 08:32:11,306 INFO L242 Difference]: Finished difference. Result has 473 places, 456 transitions, 2733 flow [2022-07-21 08:32:11,307 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1277, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=85, PETRI_FLOW=2733, PETRI_PLACES=473, PETRI_TRANSITIONS=456} [2022-07-21 08:32:11,307 INFO L279 CegarLoopForPetriNet]: 254 programPoint places, 219 predicate places. [2022-07-21 08:32:11,307 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 456 transitions, 2733 flow [2022-07-21 08:32:11,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 133.3125) internal successors, (6399), 48 states have internal predecessors, (6399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 08:32:11,309 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:32:11,309 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 08:32:11,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 08:32:11,309 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-07-21 08:32:11,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:32:11,310 INFO L85 PathProgramCache]: Analyzing trace with hash 188543869, now seen corresponding path program 2 times [2022-07-21 08:32:11,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:32:11,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858382760] [2022-07-21 08:32:11,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:32:11,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:32:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat