./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.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 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 10:08:26,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 10:08:26,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 10:08:26,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 10:08:26,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 10:08:26,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 10:08:26,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 10:08:26,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 10:08:26,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 10:08:26,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 10:08:26,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 10:08:26,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 10:08:26,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 10:08:26,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 10:08:26,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 10:08:26,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 10:08:26,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 10:08:26,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 10:08:26,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 10:08:26,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 10:08:26,655 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 10:08:26,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 10:08:26,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 10:08:26,658 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 10:08:26,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 10:08:26,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 10:08:26,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 10:08:26,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 10:08:26,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 10:08:26,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 10:08:26,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 10:08:26,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 10:08:26,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 10:08:26,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 10:08:26,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 10:08:26,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 10:08:26,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 10:08:26,669 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 10:08:26,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 10:08:26,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 10:08:26,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 10:08:26,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 10:08:26,672 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 10:08:26,695 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 10:08:26,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 10:08:26,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 10:08:26,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 10:08:26,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 10:08:26,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 10:08:26,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 10:08:26,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 10:08:26,699 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 10:08:26,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 10:08:26,700 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 10:08:26,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 10:08:26,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 10:08:26,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 10:08:26,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 10:08:26,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 10:08:26,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 10:08:26,701 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 10:08:26,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 10:08:26,701 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 10:08:26,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 10:08:26,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 10:08:26,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 10:08:26,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 10:08:26,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:08:26,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 10:08:26,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 10:08:26,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 10:08:26,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 10:08:26,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 10:08:26,703 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 10:08:26,703 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 10:08:26,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 10:08:26,704 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa [2022-07-12 10:08:26,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 10:08:26,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 10:08:26,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 10:08:26,885 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 10:08:26,885 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 10:08:26,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-07-12 10:08:26,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fa2da4a7/dbf6462cc22244219eea638f4d53e08c/FLAG75a9b02dd [2022-07-12 10:08:27,390 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 10:08:27,391 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-07-12 10:08:27,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fa2da4a7/dbf6462cc22244219eea638f4d53e08c/FLAG75a9b02dd [2022-07-12 10:08:27,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fa2da4a7/dbf6462cc22244219eea638f4d53e08c [2022-07-12 10:08:27,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 10:08:27,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 10:08:27,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 10:08:27,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 10:08:27,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 10:08:27,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:08:27" (1/1) ... [2022-07-12 10:08:27,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@569ad167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:08:27, skipping insertion in model container [2022-07-12 10:08:27,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 10:08:27" (1/1) ... [2022-07-12 10:08:27,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 10:08:27,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 10:08:27,681 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-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-07-12 10:08:27,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:08:27,868 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 10:08:27,876 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-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2022-07-12 10:08:27,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 10:08:27,933 INFO L208 MainTranslator]: Completed translation [2022-07-12 10:08:27,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:08:27 WrapperNode [2022-07-12 10:08:27,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 10:08:27,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 10:08:27,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 10:08:27,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 10:08:27,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:08:27" (1/1) ... [2022-07-12 10:08:27,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:08:27" (1/1) ... [2022-07-12 10:08:27,984 INFO L137 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 366 [2022-07-12 10:08:27,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 10:08:27,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 10:08:27,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 10:08:27,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 10:08:27,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:08:27" (1/1) ... [2022-07-12 10:08:27,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:08:27" (1/1) ... [2022-07-12 10:08:27,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:08:27" (1/1) ... [2022-07-12 10:08:27,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:08:27" (1/1) ... [2022-07-12 10:08:28,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:08:27" (1/1) ... [2022-07-12 10:08:28,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:08:27" (1/1) ... [2022-07-12 10:08:28,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:08:27" (1/1) ... [2022-07-12 10:08:28,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 10:08:28,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 10:08:28,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 10:08:28,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 10:08:28,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:08:27" (1/1) ... [2022-07-12 10:08:28,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 10:08:28,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 10:08:28,051 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) [2022-07-12 10:08:28,057 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 [2022-07-12 10:08:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 10:08:28,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-07-12 10:08:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 10:08:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 10:08:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 10:08:28,084 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-07-12 10:08:28,085 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-07-12 10:08:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-07-12 10:08:28,085 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-07-12 10:08:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 10:08:28,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-07-12 10:08:28,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 10:08:28,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 10:08:28,087 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-12 10:08:28,221 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 10:08:28,222 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 10:08:28,681 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 10:08:29,108 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 10:08:29,108 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 10:08:29,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:08:29 BoogieIcfgContainer [2022-07-12 10:08:29,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 10:08:29,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 10:08:29,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 10:08:29,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 10:08:29,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 10:08:27" (1/3) ... [2022-07-12 10:08:29,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5175bd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:08:29, skipping insertion in model container [2022-07-12 10:08:29,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 10:08:27" (2/3) ... [2022-07-12 10:08:29,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5175bd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 10:08:29, skipping insertion in model container [2022-07-12 10:08:29,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:08:29" (3/3) ... [2022-07-12 10:08:29,118 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2022-07-12 10:08:29,123 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-12 10:08:29,130 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 10:08:29,130 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 10:08:29,130 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-12 10:08:29,196 INFO L135 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-07-12 10:08:29,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 99 transitions, 208 flow [2022-07-12 10:08:29,269 INFO L129 PetriNetUnfolder]: 2/97 cut-off events. [2022-07-12 10:08:29,269 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-12 10:08:29,272 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 2/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2022-07-12 10:08:29,272 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 99 transitions, 208 flow [2022-07-12 10:08:29,276 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 97 transitions, 200 flow [2022-07-12 10:08:29,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 10:08:29,294 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@264d4b1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5b56cda [2022-07-12 10:08:29,294 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-07-12 10:08:29,310 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2022-07-12 10:08:29,311 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-12 10:08:29,311 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:08:29,312 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] [2022-07-12 10:08:29,312 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:08:29,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:08:29,315 INFO L85 PathProgramCache]: Analyzing trace with hash -491542144, now seen corresponding path program 1 times [2022-07-12 10:08:29,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:08:29,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945504078] [2022-07-12 10:08:29,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:08:29,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:08:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:08:29,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:08:29,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:08:29,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945504078] [2022-07-12 10:08:29,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945504078] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:08:29,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:08:29,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 10:08:29,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275394536] [2022-07-12 10:08:29,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:08:29,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 10:08:29,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:08:29,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 10:08:29,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 10:08:29,602 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 99 [2022-07-12 10:08:29,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 97 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:29,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:08:29,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 99 [2022-07-12 10:08:29,606 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:08:29,801 INFO L129 PetriNetUnfolder]: 60/468 cut-off events. [2022-07-12 10:08:29,801 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-07-12 10:08:29,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 468 events. 60/468 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2638 event pairs, 25 based on Foata normal form. 23/460 useless extension candidates. Maximal degree in co-relation 546. Up to 88 conditions per place. [2022-07-12 10:08:29,805 INFO L132 encePairwiseOnDemand]: 94/99 looper letters, 14 selfloop transitions, 2 changer transitions 0/98 dead transitions. [2022-07-12 10:08:29,805 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 98 transitions, 234 flow [2022-07-12 10:08:29,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 10:08:29,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-07-12 10:08:29,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 273 transitions. [2022-07-12 10:08:29,821 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.9191919191919192 [2022-07-12 10:08:29,822 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 273 transitions. [2022-07-12 10:08:29,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 273 transitions. [2022-07-12 10:08:29,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:08:29,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 273 transitions. [2022-07-12 10:08:29,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:29,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:29,840 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:29,841 INFO L186 Difference]: Start difference. First operand has 102 places, 97 transitions, 200 flow. Second operand 3 states and 273 transitions. [2022-07-12 10:08:29,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 98 transitions, 234 flow [2022-07-12 10:08:29,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 98 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-07-12 10:08:29,846 INFO L242 Difference]: Finished difference. Result has 100 places, 93 transitions, 194 flow [2022-07-12 10:08:29,848 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=100, PETRI_TRANSITIONS=93} [2022-07-12 10:08:29,851 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, -2 predicate places. [2022-07-12 10:08:29,851 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 93 transitions, 194 flow [2022-07-12 10:08:29,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:29,852 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:08:29,852 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] [2022-07-12 10:08:29,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 10:08:29,853 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:08:29,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:08:29,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1591079342, now seen corresponding path program 1 times [2022-07-12 10:08:29,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:08:29,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148402139] [2022-07-12 10:08:29,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:08:29,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:08:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:08:30,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:08:30,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:08:30,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148402139] [2022-07-12 10:08:30,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148402139] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:08:30,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:08:30,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 10:08:30,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539499017] [2022-07-12 10:08:30,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:08:30,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 10:08:30,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:08:30,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 10:08:30,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 10:08:30,035 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 99 [2022-07-12 10:08:30,035 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 93 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:30,036 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:08:30,036 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 99 [2022-07-12 10:08:30,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:08:30,338 INFO L129 PetriNetUnfolder]: 208/704 cut-off events. [2022-07-12 10:08:30,338 INFO L130 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-07-12 10:08:30,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 704 events. 208/704 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4181 event pairs, 42 based on Foata normal form. 0/682 useless extension candidates. Maximal degree in co-relation 1082. Up to 149 conditions per place. [2022-07-12 10:08:30,343 INFO L132 encePairwiseOnDemand]: 93/99 looper letters, 19 selfloop transitions, 2 changer transitions 46/134 dead transitions. [2022-07-12 10:08:30,343 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 134 transitions, 408 flow [2022-07-12 10:08:30,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 10:08:30,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-12 10:08:30,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 762 transitions. [2022-07-12 10:08:30,348 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8552188552188552 [2022-07-12 10:08:30,349 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 762 transitions. [2022-07-12 10:08:30,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 762 transitions. [2022-07-12 10:08:30,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:08:30,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 762 transitions. [2022-07-12 10:08:30,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 84.66666666666667) internal successors, (762), 9 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:30,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:30,354 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:30,354 INFO L186 Difference]: Start difference. First operand has 100 places, 93 transitions, 194 flow. Second operand 9 states and 762 transitions. [2022-07-12 10:08:30,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 134 transitions, 408 flow [2022-07-12 10:08:30,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 134 transitions, 390 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-07-12 10:08:30,358 INFO L242 Difference]: Finished difference. Result has 113 places, 83 transitions, 190 flow [2022-07-12 10:08:30,358 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=190, PETRI_PLACES=113, PETRI_TRANSITIONS=83} [2022-07-12 10:08:30,359 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, 11 predicate places. [2022-07-12 10:08:30,359 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 83 transitions, 190 flow [2022-07-12 10:08:30,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:30,360 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:08:30,360 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] [2022-07-12 10:08:30,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 10:08:30,360 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:08:30,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:08:30,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1642654892, now seen corresponding path program 1 times [2022-07-12 10:08:30,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:08:30,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491763800] [2022-07-12 10:08:30,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:08:30,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:08:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:08:30,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:08:30,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:08:30,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491763800] [2022-07-12 10:08:30,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491763800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:08:30,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:08:30,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 10:08:30,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004589519] [2022-07-12 10:08:30,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:08:30,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 10:08:30,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:08:30,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 10:08:30,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 10:08:30,522 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 99 [2022-07-12 10:08:30,523 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 83 transitions, 190 flow. Second operand has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:30,523 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:08:30,523 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 99 [2022-07-12 10:08:30,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:08:30,721 INFO L129 PetriNetUnfolder]: 127/381 cut-off events. [2022-07-12 10:08:30,721 INFO L130 PetriNetUnfolder]: For 121/121 co-relation queries the response was YES. [2022-07-12 10:08:30,722 INFO L84 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 381 events. 127/381 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1569 event pairs, 36 based on Foata normal form. 10/372 useless extension candidates. Maximal degree in co-relation 699. Up to 120 conditions per place. [2022-07-12 10:08:30,723 INFO L132 encePairwiseOnDemand]: 93/99 looper letters, 19 selfloop transitions, 2 changer transitions 25/112 dead transitions. [2022-07-12 10:08:30,723 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 112 transitions, 361 flow [2022-07-12 10:08:30,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 10:08:30,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-12 10:08:30,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 741 transitions. [2022-07-12 10:08:30,725 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8316498316498316 [2022-07-12 10:08:30,726 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 741 transitions. [2022-07-12 10:08:30,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 741 transitions. [2022-07-12 10:08:30,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:08:30,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 741 transitions. [2022-07-12 10:08:30,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.33333333333333) internal successors, (741), 9 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:30,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:30,729 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:30,730 INFO L186 Difference]: Start difference. First operand has 113 places, 83 transitions, 190 flow. Second operand 9 states and 741 transitions. [2022-07-12 10:08:30,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 112 transitions, 361 flow [2022-07-12 10:08:30,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 112 transitions, 327 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-07-12 10:08:30,733 INFO L242 Difference]: Finished difference. Result has 104 places, 83 transitions, 194 flow [2022-07-12 10:08:30,733 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=194, PETRI_PLACES=104, PETRI_TRANSITIONS=83} [2022-07-12 10:08:30,734 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, 2 predicate places. [2022-07-12 10:08:30,734 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 83 transitions, 194 flow [2022-07-12 10:08:30,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:30,735 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:08:30,735 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] [2022-07-12 10:08:30,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 10:08:30,735 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:08:30,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:08:30,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1028990539, now seen corresponding path program 1 times [2022-07-12 10:08:30,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:08:30,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568846453] [2022-07-12 10:08:30,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:08:30,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:08:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:08:31,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:08:31,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:08:31,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568846453] [2022-07-12 10:08:31,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568846453] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:08:31,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:08:31,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-12 10:08:31,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512251530] [2022-07-12 10:08:31,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:08:31,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-12 10:08:31,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:08:31,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-12 10:08:31,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-07-12 10:08:31,024 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2022-07-12 10:08:31,025 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 83 transitions, 194 flow. Second operand has 14 states, 14 states have (on average 74.28571428571429) internal successors, (1040), 14 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:31,025 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:08:31,025 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2022-07-12 10:08:31,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:08:31,370 INFO L129 PetriNetUnfolder]: 120/374 cut-off events. [2022-07-12 10:08:31,373 INFO L130 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2022-07-12 10:08:31,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 374 events. 120/374 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1511 event pairs, 16 based on Foata normal form. 7/358 useless extension candidates. Maximal degree in co-relation 691. Up to 136 conditions per place. [2022-07-12 10:08:31,377 INFO L132 encePairwiseOnDemand]: 84/99 looper letters, 22 selfloop transitions, 13 changer transitions 22/119 dead transitions. [2022-07-12 10:08:31,377 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 119 transitions, 404 flow [2022-07-12 10:08:31,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 10:08:31,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-07-12 10:08:31,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1081 transitions. [2022-07-12 10:08:31,384 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7799422799422799 [2022-07-12 10:08:31,384 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1081 transitions. [2022-07-12 10:08:31,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1081 transitions. [2022-07-12 10:08:31,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:08:31,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1081 transitions. [2022-07-12 10:08:31,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 77.21428571428571) internal successors, (1081), 14 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:31,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 99.0) internal successors, (1485), 15 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:31,393 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 99.0) internal successors, (1485), 15 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:31,393 INFO L186 Difference]: Start difference. First operand has 104 places, 83 transitions, 194 flow. Second operand 14 states and 1081 transitions. [2022-07-12 10:08:31,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 119 transitions, 404 flow [2022-07-12 10:08:31,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 119 transitions, 372 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-07-12 10:08:31,398 INFO L242 Difference]: Finished difference. Result has 110 places, 90 transitions, 262 flow [2022-07-12 10:08:31,398 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=262, PETRI_PLACES=110, PETRI_TRANSITIONS=90} [2022-07-12 10:08:31,399 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, 8 predicate places. [2022-07-12 10:08:31,400 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 90 transitions, 262 flow [2022-07-12 10:08:31,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 74.28571428571429) internal successors, (1040), 14 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:31,401 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:08:31,401 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] [2022-07-12 10:08:31,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 10:08:31,402 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:08:31,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:08:31,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1474894337, now seen corresponding path program 2 times [2022-07-12 10:08:31,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:08:31,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445892157] [2022-07-12 10:08:31,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:08:31,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:08:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:08:31,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:08:31,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:08:31,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445892157] [2022-07-12 10:08:31,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445892157] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:08:31,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:08:31,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-12 10:08:31,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146561583] [2022-07-12 10:08:31,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:08:31,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-12 10:08:31,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:08:31,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-12 10:08:31,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-12 10:08:31,753 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 99 [2022-07-12 10:08:31,754 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 90 transitions, 262 flow. Second operand has 13 states, 13 states have (on average 73.46153846153847) internal successors, (955), 13 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:31,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:08:31,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 99 [2022-07-12 10:08:31,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:08:32,252 INFO L129 PetriNetUnfolder]: 124/391 cut-off events. [2022-07-12 10:08:32,252 INFO L130 PetriNetUnfolder]: For 594/610 co-relation queries the response was YES. [2022-07-12 10:08:32,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1152 conditions, 391 events. 124/391 cut-off events. For 594/610 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1575 event pairs, 23 based on Foata normal form. 14/378 useless extension candidates. Maximal degree in co-relation 1085. Up to 151 conditions per place. [2022-07-12 10:08:32,255 INFO L132 encePairwiseOnDemand]: 84/99 looper letters, 28 selfloop transitions, 17 changer transitions 22/128 dead transitions. [2022-07-12 10:08:32,255 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 128 transitions, 642 flow [2022-07-12 10:08:32,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 10:08:32,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-07-12 10:08:32,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1146 transitions. [2022-07-12 10:08:32,262 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7717171717171717 [2022-07-12 10:08:32,262 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1146 transitions. [2022-07-12 10:08:32,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1146 transitions. [2022-07-12 10:08:32,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:08:32,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1146 transitions. [2022-07-12 10:08:32,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.4) internal successors, (1146), 15 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:32,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:32,267 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:32,267 INFO L186 Difference]: Start difference. First operand has 110 places, 90 transitions, 262 flow. Second operand 15 states and 1146 transitions. [2022-07-12 10:08:32,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 128 transitions, 642 flow [2022-07-12 10:08:32,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 128 transitions, 623 flow, removed 7 selfloop flow, removed 6 redundant places. [2022-07-12 10:08:32,271 INFO L242 Difference]: Finished difference. Result has 120 places, 98 transitions, 378 flow [2022-07-12 10:08:32,271 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=378, PETRI_PLACES=120, PETRI_TRANSITIONS=98} [2022-07-12 10:08:32,271 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, 18 predicate places. [2022-07-12 10:08:32,271 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 98 transitions, 378 flow [2022-07-12 10:08:32,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 73.46153846153847) internal successors, (955), 13 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:32,272 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:08:32,272 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] [2022-07-12 10:08:32,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 10:08:32,272 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:08:32,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:08:32,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1191993787, now seen corresponding path program 3 times [2022-07-12 10:08:32,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:08:32,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619502435] [2022-07-12 10:08:32,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:08:32,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:08:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:08:32,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:08:32,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:08:32,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619502435] [2022-07-12 10:08:32,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619502435] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:08:32,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:08:32,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 10:08:32,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209503742] [2022-07-12 10:08:32,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:08:32,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 10:08:32,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:08:32,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 10:08:32,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-07-12 10:08:32,538 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 99 [2022-07-12 10:08:32,538 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 98 transitions, 378 flow. Second operand has 10 states, 10 states have (on average 73.9) internal successors, (739), 10 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:32,539 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:08:32,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 99 [2022-07-12 10:08:32,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:08:32,920 INFO L129 PetriNetUnfolder]: 130/401 cut-off events. [2022-07-12 10:08:32,921 INFO L130 PetriNetUnfolder]: For 2046/2168 co-relation queries the response was YES. [2022-07-12 10:08:32,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1594 conditions, 401 events. 130/401 cut-off events. For 2046/2168 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1730 event pairs, 18 based on Foata normal form. 32/407 useless extension candidates. Maximal degree in co-relation 1521. Up to 156 conditions per place. [2022-07-12 10:08:32,924 INFO L132 encePairwiseOnDemand]: 86/99 looper letters, 27 selfloop transitions, 18 changer transitions 25/131 dead transitions. [2022-07-12 10:08:32,924 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 131 transitions, 879 flow [2022-07-12 10:08:32,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 10:08:32,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-07-12 10:08:32,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 923 transitions. [2022-07-12 10:08:32,926 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7769360269360269 [2022-07-12 10:08:32,926 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 923 transitions. [2022-07-12 10:08:32,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 923 transitions. [2022-07-12 10:08:32,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:08:32,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 923 transitions. [2022-07-12 10:08:32,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 76.91666666666667) internal successors, (923), 12 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:32,930 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 99.0) internal successors, (1287), 13 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:32,930 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 99.0) internal successors, (1287), 13 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:32,931 INFO L186 Difference]: Start difference. First operand has 120 places, 98 transitions, 378 flow. Second operand 12 states and 923 transitions. [2022-07-12 10:08:32,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 131 transitions, 879 flow [2022-07-12 10:08:32,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 131 transitions, 725 flow, removed 73 selfloop flow, removed 10 redundant places. [2022-07-12 10:08:32,936 INFO L242 Difference]: Finished difference. Result has 123 places, 102 transitions, 469 flow [2022-07-12 10:08:32,936 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=469, PETRI_PLACES=123, PETRI_TRANSITIONS=102} [2022-07-12 10:08:32,937 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, 21 predicate places. [2022-07-12 10:08:32,937 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 102 transitions, 469 flow [2022-07-12 10:08:32,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 73.9) internal successors, (739), 10 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:32,937 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:08:32,937 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] [2022-07-12 10:08:32,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 10:08:32,938 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:08:32,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:08:32,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1474989084, now seen corresponding path program 1 times [2022-07-12 10:08:32,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:08:32,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991524980] [2022-07-12 10:08:32,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:08:32,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:08:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:08:33,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:08:33,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:08:33,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991524980] [2022-07-12 10:08:33,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991524980] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:08:33,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:08:33,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-12 10:08:33,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226530215] [2022-07-12 10:08:33,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:08:33,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-12 10:08:33,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:08:33,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-12 10:08:33,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2022-07-12 10:08:33,383 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 99 [2022-07-12 10:08:33,384 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 102 transitions, 469 flow. Second operand has 14 states, 14 states have (on average 71.57142857142857) internal successors, (1002), 14 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:33,384 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:08:33,384 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 99 [2022-07-12 10:08:33,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:08:33,838 INFO L129 PetriNetUnfolder]: 115/387 cut-off events. [2022-07-12 10:08:33,838 INFO L130 PetriNetUnfolder]: For 2108/2189 co-relation queries the response was YES. [2022-07-12 10:08:33,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1648 conditions, 387 events. 115/387 cut-off events. For 2108/2189 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1644 event pairs, 23 based on Foata normal form. 13/368 useless extension candidates. Maximal degree in co-relation 1571. Up to 162 conditions per place. [2022-07-12 10:08:33,841 INFO L132 encePairwiseOnDemand]: 86/99 looper letters, 49 selfloop transitions, 14 changer transitions 13/135 dead transitions. [2022-07-12 10:08:33,841 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 135 transitions, 958 flow [2022-07-12 10:08:33,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 10:08:33,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-07-12 10:08:33,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1105 transitions. [2022-07-12 10:08:33,844 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7441077441077442 [2022-07-12 10:08:33,844 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1105 transitions. [2022-07-12 10:08:33,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1105 transitions. [2022-07-12 10:08:33,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:08:33,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1105 transitions. [2022-07-12 10:08:33,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 73.66666666666667) internal successors, (1105), 15 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:33,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:33,849 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:33,849 INFO L186 Difference]: Start difference. First operand has 123 places, 102 transitions, 469 flow. Second operand 15 states and 1105 transitions. [2022-07-12 10:08:33,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 135 transitions, 958 flow [2022-07-12 10:08:33,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 135 transitions, 893 flow, removed 29 selfloop flow, removed 6 redundant places. [2022-07-12 10:08:33,855 INFO L242 Difference]: Finished difference. Result has 133 places, 108 transitions, 561 flow [2022-07-12 10:08:33,855 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=561, PETRI_PLACES=133, PETRI_TRANSITIONS=108} [2022-07-12 10:08:33,855 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, 31 predicate places. [2022-07-12 10:08:33,855 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 108 transitions, 561 flow [2022-07-12 10:08:33,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 71.57142857142857) internal successors, (1002), 14 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:33,856 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:08:33,856 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] [2022-07-12 10:08:33,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 10:08:33,857 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:08:33,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:08:33,857 INFO L85 PathProgramCache]: Analyzing trace with hash 487450421, now seen corresponding path program 1 times [2022-07-12 10:08:33,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:08:33,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855550420] [2022-07-12 10:08:33,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:08:33,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:08:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:08:33,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:08:33,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:08:33,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855550420] [2022-07-12 10:08:33,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855550420] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:08:33,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:08:33,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 10:08:33,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352065963] [2022-07-12 10:08:33,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:08:33,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 10:08:33,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:08:33,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 10:08:33,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 10:08:33,955 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 99 [2022-07-12 10:08:33,956 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 108 transitions, 561 flow. Second operand has 7 states, 7 states have (on average 77.42857142857143) internal successors, (542), 7 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:33,956 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:08:33,956 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 99 [2022-07-12 10:08:33,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:08:34,218 INFO L129 PetriNetUnfolder]: 144/471 cut-off events. [2022-07-12 10:08:34,218 INFO L130 PetriNetUnfolder]: For 2853/3140 co-relation queries the response was YES. [2022-07-12 10:08:34,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2163 conditions, 471 events. 144/471 cut-off events. For 2853/3140 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2347 event pairs, 34 based on Foata normal form. 45/486 useless extension candidates. Maximal degree in co-relation 2082. Up to 186 conditions per place. [2022-07-12 10:08:34,222 INFO L132 encePairwiseOnDemand]: 89/99 looper letters, 37 selfloop transitions, 9 changer transitions 26/137 dead transitions. [2022-07-12 10:08:34,222 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 137 transitions, 1029 flow [2022-07-12 10:08:34,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 10:08:34,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-12 10:08:34,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 565 transitions. [2022-07-12 10:08:34,223 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.8152958152958153 [2022-07-12 10:08:34,224 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 565 transitions. [2022-07-12 10:08:34,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 565 transitions. [2022-07-12 10:08:34,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:08:34,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 565 transitions. [2022-07-12 10:08:34,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:34,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 99.0) internal successors, (792), 8 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:34,226 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 99.0) internal successors, (792), 8 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:34,226 INFO L186 Difference]: Start difference. First operand has 133 places, 108 transitions, 561 flow. Second operand 7 states and 565 transitions. [2022-07-12 10:08:34,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 137 transitions, 1029 flow [2022-07-12 10:08:34,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 137 transitions, 915 flow, removed 49 selfloop flow, removed 14 redundant places. [2022-07-12 10:08:34,234 INFO L242 Difference]: Finished difference. Result has 124 places, 111 transitions, 572 flow [2022-07-12 10:08:34,234 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=572, PETRI_PLACES=124, PETRI_TRANSITIONS=111} [2022-07-12 10:08:34,235 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, 22 predicate places. [2022-07-12 10:08:34,235 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 111 transitions, 572 flow [2022-07-12 10:08:34,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 77.42857142857143) internal successors, (542), 7 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:34,235 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:08:34,235 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] [2022-07-12 10:08:34,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 10:08:34,236 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:08:34,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:08:34,236 INFO L85 PathProgramCache]: Analyzing trace with hash 342414929, now seen corresponding path program 2 times [2022-07-12 10:08:34,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:08:34,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062816006] [2022-07-12 10:08:34,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:08:34,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:08:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:08:34,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:08:34,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:08:34,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062816006] [2022-07-12 10:08:34,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062816006] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:08:34,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:08:34,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 10:08:34,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724467420] [2022-07-12 10:08:34,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:08:34,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 10:08:34,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:08:34,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 10:08:34,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-12 10:08:34,525 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 99 [2022-07-12 10:08:34,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 111 transitions, 572 flow. Second operand has 11 states, 11 states have (on average 72.0) internal successors, (792), 11 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:34,526 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:08:34,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 99 [2022-07-12 10:08:34,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:08:34,983 INFO L129 PetriNetUnfolder]: 101/388 cut-off events. [2022-07-12 10:08:34,983 INFO L130 PetriNetUnfolder]: For 1393/1877 co-relation queries the response was YES. [2022-07-12 10:08:34,984 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1582 conditions, 388 events. 101/388 cut-off events. For 1393/1877 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1790 event pairs, 7 based on Foata normal form. 32/399 useless extension candidates. Maximal degree in co-relation 1507. Up to 133 conditions per place. [2022-07-12 10:08:34,986 INFO L132 encePairwiseOnDemand]: 85/99 looper letters, 43 selfloop transitions, 22 changer transitions 19/143 dead transitions. [2022-07-12 10:08:34,986 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 143 transitions, 1027 flow [2022-07-12 10:08:34,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 10:08:34,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-07-12 10:08:34,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 971 transitions. [2022-07-12 10:08:34,988 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7544677544677545 [2022-07-12 10:08:34,989 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 971 transitions. [2022-07-12 10:08:34,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 971 transitions. [2022-07-12 10:08:34,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:08:34,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 971 transitions. [2022-07-12 10:08:34,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.6923076923077) internal successors, (971), 13 states have internal predecessors, (971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:34,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:34,993 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 99.0) internal successors, (1386), 14 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:34,993 INFO L186 Difference]: Start difference. First operand has 124 places, 111 transitions, 572 flow. Second operand 13 states and 971 transitions. [2022-07-12 10:08:34,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 143 transitions, 1027 flow [2022-07-12 10:08:34,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 143 transitions, 992 flow, removed 13 selfloop flow, removed 5 redundant places. [2022-07-12 10:08:34,999 INFO L242 Difference]: Finished difference. Result has 135 places, 116 transitions, 717 flow [2022-07-12 10:08:34,999 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=717, PETRI_PLACES=135, PETRI_TRANSITIONS=116} [2022-07-12 10:08:34,999 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, 33 predicate places. [2022-07-12 10:08:35,000 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 116 transitions, 717 flow [2022-07-12 10:08:35,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 72.0) internal successors, (792), 11 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:35,000 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:08:35,001 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] [2022-07-12 10:08:35,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 10:08:35,001 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:08:35,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:08:35,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1668573592, now seen corresponding path program 2 times [2022-07-12 10:08:35,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:08:35,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905763488] [2022-07-12 10:08:35,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:08:35,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:08:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:08:35,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:08:35,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:08:35,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905763488] [2022-07-12 10:08:35,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905763488] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:08:35,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:08:35,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-12 10:08:35,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828151242] [2022-07-12 10:08:35,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:08:35,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-12 10:08:35,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:08:35,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-12 10:08:35,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-07-12 10:08:35,344 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 99 [2022-07-12 10:08:35,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 116 transitions, 717 flow. Second operand has 15 states, 15 states have (on average 71.46666666666667) internal successors, (1072), 15 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:35,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:08:35,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 99 [2022-07-12 10:08:35,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:08:35,846 INFO L129 PetriNetUnfolder]: 92/370 cut-off events. [2022-07-12 10:08:35,847 INFO L130 PetriNetUnfolder]: For 2339/2799 co-relation queries the response was YES. [2022-07-12 10:08:35,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1751 conditions, 370 events. 92/370 cut-off events. For 2339/2799 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1705 event pairs, 9 based on Foata normal form. 29/379 useless extension candidates. Maximal degree in co-relation 1667. Up to 131 conditions per place. [2022-07-12 10:08:35,849 INFO L132 encePairwiseOnDemand]: 87/99 looper letters, 51 selfloop transitions, 16 changer transitions 13/139 dead transitions. [2022-07-12 10:08:35,850 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 139 transitions, 1144 flow [2022-07-12 10:08:35,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 10:08:35,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-07-12 10:08:35,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1102 transitions. [2022-07-12 10:08:35,852 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7420875420875421 [2022-07-12 10:08:35,852 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1102 transitions. [2022-07-12 10:08:35,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1102 transitions. [2022-07-12 10:08:35,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:08:35,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1102 transitions. [2022-07-12 10:08:35,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 73.46666666666667) internal successors, (1102), 15 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:35,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:35,873 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:35,873 INFO L186 Difference]: Start difference. First operand has 135 places, 116 transitions, 717 flow. Second operand 15 states and 1102 transitions. [2022-07-12 10:08:35,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 139 transitions, 1144 flow [2022-07-12 10:08:35,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 139 transitions, 1089 flow, removed 23 selfloop flow, removed 10 redundant places. [2022-07-12 10:08:35,879 INFO L242 Difference]: Finished difference. Result has 140 places, 118 transitions, 785 flow [2022-07-12 10:08:35,879 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=785, PETRI_PLACES=140, PETRI_TRANSITIONS=118} [2022-07-12 10:08:35,879 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, 38 predicate places. [2022-07-12 10:08:35,879 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 118 transitions, 785 flow [2022-07-12 10:08:35,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 71.46666666666667) internal successors, (1072), 15 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:35,880 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:08:35,880 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] [2022-07-12 10:08:35,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 10:08:35,881 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:08:35,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:08:35,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1394114376, now seen corresponding path program 3 times [2022-07-12 10:08:35,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:08:35,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595619742] [2022-07-12 10:08:35,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:08:35,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:08:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:08:36,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:08:36,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:08:36,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595619742] [2022-07-12 10:08:36,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595619742] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:08:36,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:08:36,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 10:08:36,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803451608] [2022-07-12 10:08:36,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:08:36,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 10:08:36,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:08:36,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 10:08:36,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-12 10:08:36,136 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2022-07-12 10:08:36,137 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 118 transitions, 785 flow. Second operand has 10 states, 10 states have (on average 74.9) internal successors, (749), 10 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:36,137 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:08:36,137 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2022-07-12 10:08:36,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:08:36,398 INFO L129 PetriNetUnfolder]: 88/372 cut-off events. [2022-07-12 10:08:36,399 INFO L130 PetriNetUnfolder]: For 2364/2808 co-relation queries the response was YES. [2022-07-12 10:08:36,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1766 conditions, 372 events. 88/372 cut-off events. For 2364/2808 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1737 event pairs, 8 based on Foata normal form. 26/377 useless extension candidates. Maximal degree in co-relation 1707. Up to 135 conditions per place. [2022-07-12 10:08:36,402 INFO L132 encePairwiseOnDemand]: 89/99 looper letters, 51 selfloop transitions, 14 changer transitions 16/143 dead transitions. [2022-07-12 10:08:36,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 143 transitions, 1280 flow [2022-07-12 10:08:36,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 10:08:36,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-07-12 10:08:36,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 926 transitions. [2022-07-12 10:08:36,404 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7794612794612794 [2022-07-12 10:08:36,404 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 926 transitions. [2022-07-12 10:08:36,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 926 transitions. [2022-07-12 10:08:36,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:08:36,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 926 transitions. [2022-07-12 10:08:36,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 77.16666666666667) internal successors, (926), 12 states have internal predecessors, (926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:36,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 99.0) internal successors, (1287), 13 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:36,408 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 99.0) internal successors, (1287), 13 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:36,408 INFO L186 Difference]: Start difference. First operand has 140 places, 118 transitions, 785 flow. Second operand 12 states and 926 transitions. [2022-07-12 10:08:36,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 143 transitions, 1280 flow [2022-07-12 10:08:36,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 143 transitions, 1157 flow, removed 50 selfloop flow, removed 13 redundant places. [2022-07-12 10:08:36,414 INFO L242 Difference]: Finished difference. Result has 139 places, 121 transitions, 835 flow [2022-07-12 10:08:36,414 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=835, PETRI_PLACES=139, PETRI_TRANSITIONS=121} [2022-07-12 10:08:36,415 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, 37 predicate places. [2022-07-12 10:08:36,415 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 121 transitions, 835 flow [2022-07-12 10:08:36,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.9) internal successors, (749), 10 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:36,415 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:08:36,416 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] [2022-07-12 10:08:36,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 10:08:36,416 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:08:36,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:08:36,416 INFO L85 PathProgramCache]: Analyzing trace with hash 427079432, now seen corresponding path program 1 times [2022-07-12 10:08:36,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:08:36,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170872928] [2022-07-12 10:08:36,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:08:36,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:08:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:08:36,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:08:36,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:08:36,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170872928] [2022-07-12 10:08:36,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170872928] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:08:36,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:08:36,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-12 10:08:36,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113055029] [2022-07-12 10:08:36,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:08:36,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-12 10:08:36,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:08:36,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-12 10:08:36,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-12 10:08:36,605 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 99 [2022-07-12 10:08:36,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 121 transitions, 835 flow. Second operand has 11 states, 11 states have (on average 71.9090909090909) internal successors, (791), 11 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:36,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:08:36,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 99 [2022-07-12 10:08:36,606 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:08:37,039 INFO L129 PetriNetUnfolder]: 259/752 cut-off events. [2022-07-12 10:08:37,039 INFO L130 PetriNetUnfolder]: For 4533/4796 co-relation queries the response was YES. [2022-07-12 10:08:37,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3284 conditions, 752 events. 259/752 cut-off events. For 4533/4796 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4406 event pairs, 46 based on Foata normal form. 72/809 useless extension candidates. Maximal degree in co-relation 3201. Up to 224 conditions per place. [2022-07-12 10:08:37,044 INFO L132 encePairwiseOnDemand]: 85/99 looper letters, 57 selfloop transitions, 18 changer transitions 69/204 dead transitions. [2022-07-12 10:08:37,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 204 transitions, 1959 flow [2022-07-12 10:08:37,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 10:08:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-07-12 10:08:37,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1147 transitions. [2022-07-12 10:08:37,047 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7723905723905724 [2022-07-12 10:08:37,047 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1147 transitions. [2022-07-12 10:08:37,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1147 transitions. [2022-07-12 10:08:37,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:08:37,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1147 transitions. [2022-07-12 10:08:37,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.46666666666667) internal successors, (1147), 15 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:37,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:37,052 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 99.0) internal successors, (1584), 16 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:37,052 INFO L186 Difference]: Start difference. First operand has 139 places, 121 transitions, 835 flow. Second operand 15 states and 1147 transitions. [2022-07-12 10:08:37,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 204 transitions, 1959 flow [2022-07-12 10:08:37,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 204 transitions, 1814 flow, removed 68 selfloop flow, removed 8 redundant places. [2022-07-12 10:08:37,066 INFO L242 Difference]: Finished difference. Result has 151 places, 117 transitions, 807 flow [2022-07-12 10:08:37,066 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=807, PETRI_PLACES=151, PETRI_TRANSITIONS=117} [2022-07-12 10:08:37,067 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, 49 predicate places. [2022-07-12 10:08:37,067 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 117 transitions, 807 flow [2022-07-12 10:08:37,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 71.9090909090909) internal successors, (791), 11 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:37,068 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:08:37,068 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] [2022-07-12 10:08:37,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 10:08:37,068 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:08:37,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:08:37,069 INFO L85 PathProgramCache]: Analyzing trace with hash -2035540178, now seen corresponding path program 2 times [2022-07-12 10:08:37,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:08:37,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945350957] [2022-07-12 10:08:37,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:08:37,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:08:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:08:37,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:08:37,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:08:37,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945350957] [2022-07-12 10:08:37,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945350957] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:08:37,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:08:37,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 10:08:37,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176206928] [2022-07-12 10:08:37,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:08:37,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 10:08:37,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:08:37,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 10:08:37,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-07-12 10:08:37,232 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2022-07-12 10:08:37,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 117 transitions, 807 flow. Second operand has 10 states, 10 states have (on average 75.0) internal successors, (750), 10 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:37,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:08:37,233 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2022-07-12 10:08:37,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:08:37,516 INFO L129 PetriNetUnfolder]: 102/417 cut-off events. [2022-07-12 10:08:37,516 INFO L130 PetriNetUnfolder]: For 2956/3594 co-relation queries the response was YES. [2022-07-12 10:08:37,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2029 conditions, 417 events. 102/417 cut-off events. For 2956/3594 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2041 event pairs, 13 based on Foata normal form. 41/438 useless extension candidates. Maximal degree in co-relation 1939. Up to 126 conditions per place. [2022-07-12 10:08:37,519 INFO L132 encePairwiseOnDemand]: 90/99 looper letters, 42 selfloop transitions, 9 changer transitions 30/146 dead transitions. [2022-07-12 10:08:37,519 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 146 transitions, 1340 flow [2022-07-12 10:08:37,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 10:08:37,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-12 10:08:37,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 701 transitions. [2022-07-12 10:08:37,520 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7867564534231201 [2022-07-12 10:08:37,520 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 701 transitions. [2022-07-12 10:08:37,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 701 transitions. [2022-07-12 10:08:37,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:08:37,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 701 transitions. [2022-07-12 10:08:37,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.88888888888889) internal successors, (701), 9 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:37,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:37,523 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 99.0) internal successors, (990), 10 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:37,523 INFO L186 Difference]: Start difference. First operand has 151 places, 117 transitions, 807 flow. Second operand 9 states and 701 transitions. [2022-07-12 10:08:37,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 146 transitions, 1340 flow [2022-07-12 10:08:37,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 146 transitions, 1280 flow, removed 15 selfloop flow, removed 8 redundant places. [2022-07-12 10:08:37,532 INFO L242 Difference]: Finished difference. Result has 147 places, 112 transitions, 740 flow [2022-07-12 10:08:37,532 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=740, PETRI_PLACES=147, PETRI_TRANSITIONS=112} [2022-07-12 10:08:37,533 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, 45 predicate places. [2022-07-12 10:08:37,534 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 112 transitions, 740 flow [2022-07-12 10:08:37,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 75.0) internal successors, (750), 10 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:37,534 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-12 10:08:37,534 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] [2022-07-12 10:08:37,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 10:08:37,534 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-07-12 10:08:37,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 10:08:37,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1673830086, now seen corresponding path program 3 times [2022-07-12 10:08:37,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 10:08:37,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028516990] [2022-07-12 10:08:37,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 10:08:37,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 10:08:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 10:08:37,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 10:08:37,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 10:08:37,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028516990] [2022-07-12 10:08:37,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028516990] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 10:08:37,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 10:08:37,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 10:08:37,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127050401] [2022-07-12 10:08:37,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 10:08:37,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 10:08:37,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 10:08:37,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 10:08:37,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-07-12 10:08:37,740 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 99 [2022-07-12 10:08:37,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 112 transitions, 740 flow. Second operand has 12 states, 12 states have (on average 73.75) internal successors, (885), 12 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:37,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-12 10:08:37,741 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 99 [2022-07-12 10:08:37,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-12 10:08:37,970 INFO L129 PetriNetUnfolder]: 43/221 cut-off events. [2022-07-12 10:08:37,971 INFO L130 PetriNetUnfolder]: For 1369/1931 co-relation queries the response was YES. [2022-07-12 10:08:37,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 995 conditions, 221 events. 43/221 cut-off events. For 1369/1931 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 675 event pairs, 9 based on Foata normal form. 18/223 useless extension candidates. Maximal degree in co-relation 963. Up to 56 conditions per place. [2022-07-12 10:08:37,972 INFO L132 encePairwiseOnDemand]: 90/99 looper letters, 0 selfloop transitions, 0 changer transitions 119/119 dead transitions. [2022-07-12 10:08:37,972 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 119 transitions, 967 flow [2022-07-12 10:08:37,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 10:08:37,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-07-12 10:08:37,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 753 transitions. [2022-07-12 10:08:37,973 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7606060606060606 [2022-07-12 10:08:37,973 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 753 transitions. [2022-07-12 10:08:37,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 753 transitions. [2022-07-12 10:08:37,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-12 10:08:37,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 753 transitions. [2022-07-12 10:08:37,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.3) internal successors, (753), 10 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:37,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 99.0) internal successors, (1089), 11 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:37,976 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 99.0) internal successors, (1089), 11 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:37,976 INFO L186 Difference]: Start difference. First operand has 147 places, 112 transitions, 740 flow. Second operand 10 states and 753 transitions. [2022-07-12 10:08:37,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 119 transitions, 967 flow [2022-07-12 10:08:37,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 119 transitions, 905 flow, removed 15 selfloop flow, removed 13 redundant places. [2022-07-12 10:08:37,980 INFO L242 Difference]: Finished difference. Result has 137 places, 0 transitions, 0 flow [2022-07-12 10:08:37,980 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=137, PETRI_TRANSITIONS=0} [2022-07-12 10:08:37,981 INFO L279 CegarLoopForPetriNet]: 102 programPoint places, 35 predicate places. [2022-07-12 10:08:37,981 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 0 transitions, 0 flow [2022-07-12 10:08:37,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 73.75) internal successors, (885), 12 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 10:08:37,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-07-12 10:08:37,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-07-12 10:08:37,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-07-12 10:08:37,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-07-12 10:08:37,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-07-12 10:08:37,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 10:08:37,985 INFO L356 BasicCegarLoop]: Path program histogram: [3, 3, 3, 2, 1, 1, 1] [2022-07-12 10:08:37,988 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-12 10:08:37,988 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 10:08:37,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 10:08:37 BasicIcfg [2022-07-12 10:08:37,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 10:08:37,992 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 10:08:37,992 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 10:08:37,992 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 10:08:37,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 10:08:29" (3/4) ... [2022-07-12 10:08:37,994 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 10:08:37,997 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-07-12 10:08:37,997 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-07-12 10:08:38,002 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 116 nodes and edges [2022-07-12 10:08:38,002 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-07-12 10:08:38,002 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-07-12 10:08:38,003 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-12 10:08:38,050 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 10:08:38,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 10:08:38,051 INFO L158 Benchmark]: Toolchain (without parser) took 10612.12ms. Allocated memory was 153.1MB in the beginning and 312.5MB in the end (delta: 159.4MB). Free memory was 117.5MB in the beginning and 97.2MB in the end (delta: 20.3MB). Peak memory consumption was 179.8MB. Max. memory is 16.1GB. [2022-07-12 10:08:38,051 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 88.1MB. Free memory was 45.2MB in the beginning and 45.2MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 10:08:38,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.57ms. Allocated memory is still 153.1MB. Free memory was 117.3MB in the beginning and 110.8MB in the end (delta: 6.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-12 10:08:38,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.19ms. Allocated memory is still 153.1MB. Free memory was 110.8MB in the beginning and 107.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 10:08:38,052 INFO L158 Benchmark]: Boogie Preprocessor took 26.05ms. Allocated memory is still 153.1MB. Free memory was 107.5MB in the beginning and 104.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 10:08:38,052 INFO L158 Benchmark]: RCFGBuilder took 1098.93ms. Allocated memory was 153.1MB in the beginning and 195.0MB in the end (delta: 41.9MB). Free memory was 104.5MB in the beginning and 141.0MB in the end (delta: -36.4MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. [2022-07-12 10:08:38,052 INFO L158 Benchmark]: TraceAbstraction took 8878.82ms. Allocated memory was 195.0MB in the beginning and 312.5MB in the end (delta: 117.4MB). Free memory was 139.9MB in the beginning and 101.4MB in the end (delta: 38.5MB). Peak memory consumption was 155.9MB. Max. memory is 16.1GB. [2022-07-12 10:08:38,053 INFO L158 Benchmark]: Witness Printer took 58.58ms. Allocated memory is still 312.5MB. Free memory was 101.4MB in the beginning and 97.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 10:08:38,055 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 88.1MB. Free memory was 45.2MB in the beginning and 45.2MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 493.57ms. Allocated memory is still 153.1MB. Free memory was 117.3MB in the beginning and 110.8MB in the end (delta: 6.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.19ms. Allocated memory is still 153.1MB. Free memory was 110.8MB in the beginning and 107.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.05ms. Allocated memory is still 153.1MB. Free memory was 107.5MB in the beginning and 104.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1098.93ms. Allocated memory was 153.1MB in the beginning and 195.0MB in the end (delta: 41.9MB). Free memory was 104.5MB in the beginning and 141.0MB in the end (delta: -36.4MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8878.82ms. Allocated memory was 195.0MB in the beginning and 312.5MB in the end (delta: 117.4MB). Free memory was 139.9MB in the beginning and 101.4MB in the end (delta: 38.5MB). Peak memory consumption was 155.9MB. Max. memory is 16.1GB. * Witness Printer took 58.58ms. Allocated memory is still 312.5MB. Free memory was 101.4MB in the beginning and 97.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 120 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.8s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 605 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 605 mSDsluCounter, 750 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1047 mSDsCounter, 381 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2426 IncrementalHoareTripleChecker+Invalid, 2807 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 381 mSolverCounterUnsat, 126 mSDtfsCounter, 2426 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 30 SyntacticMatches, 8 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=835occurred in iteration=11, InterpolantAutomatonStates: 158, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 998 NumberOfCodeBlocks, 998 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 984 ConstructedInterpolants, 0 QuantifiedInterpolants, 6957 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-12 10:08:38,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE