./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8 --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 473191b5f1326a38296af26dcd2c7f553c42833f82b512e9fb358484309bc769 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:24:31,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:24:31,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:24:31,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:24:31,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:24:31,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:24:31,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:24:31,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:24:31,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:24:31,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:24:31,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:24:31,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:24:31,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:24:31,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:24:31,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:24:31,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:24:31,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:24:31,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:24:31,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:24:31,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:24:31,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:24:31,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:24:31,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:24:31,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:24:31,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:24:31,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:24:31,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:24:31,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:24:31,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:24:31,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:24:31,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:24:31,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:24:31,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:24:31,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:24:31,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:24:31,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:24:31,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:24:31,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:24:31,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:24:31,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:24:31,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:24:31,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 11:24:31,439 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:24:31,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:24:31,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:24:31,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:24:31,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:24:31,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:24:31,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:24:31,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:24:31,444 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:24:31,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:24:31,445 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:24:31,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:24:31,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:24:31,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:24:31,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:24:31,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:24:31,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:24:31,447 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:24:31,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:24:31,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:24:31,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:24:31,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:24:31,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:24:31,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:24:31,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:24:31,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:24:31,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:24:31,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:24:31,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:24:31,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:24:31,450 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:24:31,450 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:24:31,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:24:31,451 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 473191b5f1326a38296af26dcd2c7f553c42833f82b512e9fb358484309bc769 [2022-11-16 11:24:31,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:24:31,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:24:31,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:24:31,826 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:24:31,826 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:24:31,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-11-16 11:24:31,901 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8/data/3fff5ff60/93e5cd8b85ce42ed8d90cbb0f172c7ef/FLAGf91a51028 [2022-11-16 11:24:32,520 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:24:32,521 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-11-16 11:24:32,534 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8/data/3fff5ff60/93e5cd8b85ce42ed8d90cbb0f172c7ef/FLAGf91a51028 [2022-11-16 11:24:32,816 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8/data/3fff5ff60/93e5cd8b85ce42ed8d90cbb0f172c7ef [2022-11-16 11:24:32,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:24:32,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:24:32,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:24:32,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:24:32,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:24:32,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:24:32" (1/1) ... [2022-11-16 11:24:32,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff41292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:32, skipping insertion in model container [2022-11-16 11:24:32,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:24:32" (1/1) ... [2022-11-16 11:24:32,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:24:32,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:24:33,110 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-11-16 11:24:33,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:24:33,428 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:24:33,443 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2022-11-16 11:24:33,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:24:33,545 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:24:33,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:33 WrapperNode [2022-11-16 11:24:33,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:24:33,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:24:33,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:24:33,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:24:33,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:33" (1/1) ... [2022-11-16 11:24:33,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:33" (1/1) ... [2022-11-16 11:24:33,640 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2022-11-16 11:24:33,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:24:33,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:24:33,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:24:33,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:24:33,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:33" (1/1) ... [2022-11-16 11:24:33,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:33" (1/1) ... [2022-11-16 11:24:33,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:33" (1/1) ... [2022-11-16 11:24:33,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:33" (1/1) ... [2022-11-16 11:24:33,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:33" (1/1) ... [2022-11-16 11:24:33,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:33" (1/1) ... [2022-11-16 11:24:33,685 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:33" (1/1) ... [2022-11-16 11:24:33,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:33" (1/1) ... [2022-11-16 11:24:33,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:24:33,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:24:33,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:24:33,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:24:33,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:33" (1/1) ... [2022-11-16 11:24:33,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:24:33,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:24:33,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:24:33,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd3272da-8757-4e0e-8366-db534354ff4d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:24:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:24:33,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:24:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:24:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:24:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:24:33,798 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 11:24:33,799 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 11:24:33,799 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 11:24:33,800 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 11:24:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 11:24:33,800 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 11:24:33,800 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-16 11:24:33,801 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-16 11:24:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:24:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:24:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:24:33,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:24:33,803 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:24:34,011 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:24:34,013 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:24:34,358 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:24:34,540 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:24:34,540 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:24:34,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:24:34 BoogieIcfgContainer [2022-11-16 11:24:34,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:24:34,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:24:34,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:24:34,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:24:34,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:24:32" (1/3) ... [2022-11-16 11:24:34,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1c4b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:24:34, skipping insertion in model container [2022-11-16 11:24:34,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:33" (2/3) ... [2022-11-16 11:24:34,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a1c4b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:24:34, skipping insertion in model container [2022-11-16 11:24:34,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:24:34" (3/3) ... [2022-11-16 11:24:34,554 INFO L112 eAbstractionObserver]: Analyzing ICFG mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2022-11-16 11:24:34,565 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:24:34,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:24:34,576 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 11:24:34,576 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:24:34,637 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:24:34,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 136 transitions, 292 flow [2022-11-16 11:24:34,776 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2022-11-16 11:24:34,779 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:24:34,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 71 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2022-11-16 11:24:34,785 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 136 transitions, 292 flow [2022-11-16 11:24:34,792 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 132 transitions, 276 flow [2022-11-16 11:24:34,803 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:24:34,810 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2d09cf7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:24:34,810 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-16 11:24:34,834 INFO L130 PetriNetUnfolder]: 0/90 cut-off events. [2022-11-16 11:24:34,834 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:24:34,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:24:34,835 INFO L209 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] [2022-11-16 11:24:34,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:24:34,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:34,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1886494958, now seen corresponding path program 1 times [2022-11-16 11:24:34,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:34,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863506513] [2022-11-16 11:24:34,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:34,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:35,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:35,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:35,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863506513] [2022-11-16 11:24:35,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863506513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:35,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:35,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:24:35,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511294984] [2022-11-16 11:24:35,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:35,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:24:35,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:35,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:24:35,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:24:35,671 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 136 [2022-11-16 11:24:35,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 132 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:35,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:24:35,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 136 [2022-11-16 11:24:35,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:24:35,877 INFO L130 PetriNetUnfolder]: 17/214 cut-off events. [2022-11-16 11:24:35,877 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 11:24:35,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 214 events. 17/214 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 502 event pairs, 3 based on Foata normal form. 9/216 useless extension candidates. Maximal degree in co-relation 213. Up to 27 conditions per place. [2022-11-16 11:24:35,883 INFO L137 encePairwiseOnDemand]: 131/136 looper letters, 11 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2022-11-16 11:24:35,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 131 transitions, 300 flow [2022-11-16 11:24:35,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:24:35,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:24:35,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2022-11-16 11:24:35,907 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9411764705882353 [2022-11-16 11:24:35,908 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 384 transitions. [2022-11-16 11:24:35,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 384 transitions. [2022-11-16 11:24:35,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:24:35,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 384 transitions. [2022-11-16 11:24:35,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:35,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:35,936 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:35,938 INFO L175 Difference]: Start difference. First operand has 143 places, 132 transitions, 276 flow. Second operand 3 states and 384 transitions. [2022-11-16 11:24:35,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 131 transitions, 300 flow [2022-11-16 11:24:35,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 131 transitions, 296 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:24:35,949 INFO L231 Difference]: Finished difference. Result has 139 places, 128 transitions, 268 flow [2022-11-16 11:24:35,952 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=139, PETRI_TRANSITIONS=128} [2022-11-16 11:24:35,957 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, -4 predicate places. [2022-11-16 11:24:35,957 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 268 flow [2022-11-16 11:24:35,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:35,958 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:24:35,959 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:35,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:24:35,959 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:24:35,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:35,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1051469350, now seen corresponding path program 1 times [2022-11-16 11:24:35,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:35,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967926799] [2022-11-16 11:24:35,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:35,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:36,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:36,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:36,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967926799] [2022-11-16 11:24:36,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967926799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:36,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:36,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:24:36,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352612281] [2022-11-16 11:24:36,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:36,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:24:36,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:36,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:24:36,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:24:36,928 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2022-11-16 11:24:36,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 128 transitions, 268 flow. Second operand has 7 states, 7 states have (on average 102.14285714285714) internal successors, (715), 7 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:36,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:24:36,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2022-11-16 11:24:36,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:24:40,429 INFO L130 PetriNetUnfolder]: 5568/14173 cut-off events. [2022-11-16 11:24:40,430 INFO L131 PetriNetUnfolder]: For 455/455 co-relation queries the response was YES. [2022-11-16 11:24:40,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22693 conditions, 14173 events. 5568/14173 cut-off events. For 455/455 co-relation queries the response was YES. Maximal size of possible extension queue 679. Compared 145707 event pairs, 975 based on Foata normal form. 0/13827 useless extension candidates. Maximal degree in co-relation 22627. Up to 2987 conditions per place. [2022-11-16 11:24:40,539 INFO L137 encePairwiseOnDemand]: 120/136 looper letters, 48 selfloop transitions, 14 changer transitions 116/260 dead transitions. [2022-11-16 11:24:40,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 260 transitions, 894 flow [2022-11-16 11:24:40,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:24:40,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:24:40,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1455 transitions. [2022-11-16 11:24:40,547 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8229638009049773 [2022-11-16 11:24:40,547 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1455 transitions. [2022-11-16 11:24:40,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1455 transitions. [2022-11-16 11:24:40,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:24:40,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1455 transitions. [2022-11-16 11:24:40,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 111.92307692307692) internal successors, (1455), 13 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:40,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:40,558 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:40,559 INFO L175 Difference]: Start difference. First operand has 139 places, 128 transitions, 268 flow. Second operand 13 states and 1455 transitions. [2022-11-16 11:24:40,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 260 transitions, 894 flow [2022-11-16 11:24:40,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 260 transitions, 868 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:24:40,568 INFO L231 Difference]: Finished difference. Result has 161 places, 126 transitions, 400 flow [2022-11-16 11:24:40,568 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=400, PETRI_PLACES=161, PETRI_TRANSITIONS=126} [2022-11-16 11:24:40,569 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 18 predicate places. [2022-11-16 11:24:40,570 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 126 transitions, 400 flow [2022-11-16 11:24:40,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 102.14285714285714) internal successors, (715), 7 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:40,571 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:24:40,571 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:40,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:24:40,572 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:24:40,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:40,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1295892025, now seen corresponding path program 1 times [2022-11-16 11:24:40,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:40,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269138579] [2022-11-16 11:24:40,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:40,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:41,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:41,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:41,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269138579] [2022-11-16 11:24:41,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269138579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:41,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:41,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:24:41,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366410795] [2022-11-16 11:24:41,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:41,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:24:41,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:41,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:24:41,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:24:41,797 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2022-11-16 11:24:41,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 126 transitions, 400 flow. Second operand has 10 states, 10 states have (on average 101.3) internal successors, (1013), 10 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:41,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:24:41,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2022-11-16 11:24:41,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:24:44,791 INFO L130 PetriNetUnfolder]: 4935/9478 cut-off events. [2022-11-16 11:24:44,792 INFO L131 PetriNetUnfolder]: For 22909/30595 co-relation queries the response was YES. [2022-11-16 11:24:44,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33899 conditions, 9478 events. 4935/9478 cut-off events. For 22909/30595 co-relation queries the response was YES. Maximal size of possible extension queue 575. Compared 77152 event pairs, 303 based on Foata normal form. 252/9539 useless extension candidates. Maximal degree in co-relation 33819. Up to 3297 conditions per place. [2022-11-16 11:24:44,896 INFO L137 encePairwiseOnDemand]: 117/136 looper letters, 70 selfloop transitions, 36 changer transitions 165/353 dead transitions. [2022-11-16 11:24:44,896 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 353 transitions, 2470 flow [2022-11-16 11:24:44,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-16 11:24:44,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2022-11-16 11:24:44,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2477 transitions. [2022-11-16 11:24:44,903 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7918797953964194 [2022-11-16 11:24:44,903 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2477 transitions. [2022-11-16 11:24:44,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2477 transitions. [2022-11-16 11:24:44,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:24:44,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2477 transitions. [2022-11-16 11:24:44,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 107.69565217391305) internal successors, (2477), 23 states have internal predecessors, (2477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:44,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 136.0) internal successors, (3264), 24 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:44,922 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 136.0) internal successors, (3264), 24 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:44,922 INFO L175 Difference]: Start difference. First operand has 161 places, 126 transitions, 400 flow. Second operand 23 states and 2477 transitions. [2022-11-16 11:24:44,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 353 transitions, 2470 flow [2022-11-16 11:24:45,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 353 transitions, 2426 flow, removed 22 selfloop flow, removed 3 redundant places. [2022-11-16 11:24:45,053 INFO L231 Difference]: Finished difference. Result has 177 places, 151 transitions, 857 flow [2022-11-16 11:24:45,054 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=857, PETRI_PLACES=177, PETRI_TRANSITIONS=151} [2022-11-16 11:24:45,056 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 34 predicate places. [2022-11-16 11:24:45,057 INFO L495 AbstractCegarLoop]: Abstraction has has 177 places, 151 transitions, 857 flow [2022-11-16 11:24:45,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.3) internal successors, (1013), 10 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:45,058 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:24:45,058 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:45,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:24:45,059 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:24:45,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:45,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1888019385, now seen corresponding path program 1 times [2022-11-16 11:24:45,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:45,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403849225] [2022-11-16 11:24:45,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:45,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:45,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:45,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:45,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403849225] [2022-11-16 11:24:45,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403849225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:45,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:45,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:24:45,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886706209] [2022-11-16 11:24:45,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:45,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:24:45,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:45,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:24:45,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:24:45,734 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2022-11-16 11:24:45,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 151 transitions, 857 flow. Second operand has 7 states, 7 states have (on average 102.42857142857143) internal successors, (717), 7 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:45,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:24:45,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2022-11-16 11:24:45,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:24:48,307 INFO L130 PetriNetUnfolder]: 3691/7399 cut-off events. [2022-11-16 11:24:48,308 INFO L131 PetriNetUnfolder]: For 71651/83675 co-relation queries the response was YES. [2022-11-16 11:24:48,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40993 conditions, 7399 events. 3691/7399 cut-off events. For 71651/83675 co-relation queries the response was YES. Maximal size of possible extension queue 431. Compared 59766 event pairs, 420 based on Foata normal form. 157/7400 useless extension candidates. Maximal degree in co-relation 40887. Up to 2517 conditions per place. [2022-11-16 11:24:48,397 INFO L137 encePairwiseOnDemand]: 122/136 looper letters, 81 selfloop transitions, 16 changer transitions 142/321 dead transitions. [2022-11-16 11:24:48,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 321 transitions, 3475 flow [2022-11-16 11:24:48,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:24:48,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:24:48,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1421 transitions. [2022-11-16 11:24:48,402 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8037330316742082 [2022-11-16 11:24:48,402 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1421 transitions. [2022-11-16 11:24:48,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1421 transitions. [2022-11-16 11:24:48,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:24:48,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1421 transitions. [2022-11-16 11:24:48,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 109.3076923076923) internal successors, (1421), 13 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:48,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:48,415 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:48,415 INFO L175 Difference]: Start difference. First operand has 177 places, 151 transitions, 857 flow. Second operand 13 states and 1421 transitions. [2022-11-16 11:24:48,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 321 transitions, 3475 flow [2022-11-16 11:24:48,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 321 transitions, 3204 flow, removed 134 selfloop flow, removed 11 redundant places. [2022-11-16 11:24:48,775 INFO L231 Difference]: Finished difference. Result has 175 places, 161 transitions, 1056 flow [2022-11-16 11:24:48,782 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1056, PETRI_PLACES=175, PETRI_TRANSITIONS=161} [2022-11-16 11:24:48,783 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 32 predicate places. [2022-11-16 11:24:48,784 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 161 transitions, 1056 flow [2022-11-16 11:24:48,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 102.42857142857143) internal successors, (717), 7 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:48,784 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:24:48,785 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:48,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:24:48,785 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:24:48,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:48,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1456722442, now seen corresponding path program 1 times [2022-11-16 11:24:48,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:48,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513968936] [2022-11-16 11:24:48,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:48,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:48,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:49,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:49,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:49,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513968936] [2022-11-16 11:24:49,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513968936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:49,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:49,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:24:49,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450959940] [2022-11-16 11:24:49,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:49,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:24:49,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:49,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:24:49,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:24:49,890 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 136 [2022-11-16 11:24:49,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 161 transitions, 1056 flow. Second operand has 9 states, 9 states have (on average 110.88888888888889) internal successors, (998), 9 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:49,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:24:49,892 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 136 [2022-11-16 11:24:49,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:24:51,735 INFO L130 PetriNetUnfolder]: 2777/5496 cut-off events. [2022-11-16 11:24:51,735 INFO L131 PetriNetUnfolder]: For 63685/72875 co-relation queries the response was YES. [2022-11-16 11:24:51,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32324 conditions, 5496 events. 2777/5496 cut-off events. For 63685/72875 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 41778 event pairs, 509 based on Foata normal form. 557/5864 useless extension candidates. Maximal degree in co-relation 32221. Up to 2119 conditions per place. [2022-11-16 11:24:51,808 INFO L137 encePairwiseOnDemand]: 124/136 looper letters, 54 selfloop transitions, 33 changer transitions 86/288 dead transitions. [2022-11-16 11:24:51,808 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 288 transitions, 3162 flow [2022-11-16 11:24:51,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:24:51,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 11:24:51,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1719 transitions. [2022-11-16 11:24:51,813 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8426470588235294 [2022-11-16 11:24:51,813 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1719 transitions. [2022-11-16 11:24:51,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1719 transitions. [2022-11-16 11:24:51,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:24:51,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1719 transitions. [2022-11-16 11:24:51,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 114.6) internal successors, (1719), 15 states have internal predecessors, (1719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:51,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 136.0) internal successors, (2176), 16 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:51,823 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 136.0) internal successors, (2176), 16 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:51,824 INFO L175 Difference]: Start difference. First operand has 175 places, 161 transitions, 1056 flow. Second operand 15 states and 1719 transitions. [2022-11-16 11:24:51,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 288 transitions, 3162 flow [2022-11-16 11:24:51,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 288 transitions, 3082 flow, removed 34 selfloop flow, removed 5 redundant places. [2022-11-16 11:24:51,972 INFO L231 Difference]: Finished difference. Result has 187 places, 191 transitions, 1654 flow [2022-11-16 11:24:51,972 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1020, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1654, PETRI_PLACES=187, PETRI_TRANSITIONS=191} [2022-11-16 11:24:51,973 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 44 predicate places. [2022-11-16 11:24:51,973 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 191 transitions, 1654 flow [2022-11-16 11:24:51,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 110.88888888888889) internal successors, (998), 9 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:51,974 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:24:51,974 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:51,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:24:51,974 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:24:51,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:51,975 INFO L85 PathProgramCache]: Analyzing trace with hash 43085852, now seen corresponding path program 1 times [2022-11-16 11:24:51,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:51,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074132954] [2022-11-16 11:24:51,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:51,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:53,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:53,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:53,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074132954] [2022-11-16 11:24:53,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074132954] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:53,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:53,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 11:24:53,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528845463] [2022-11-16 11:24:53,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:53,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 11:24:53,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:53,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 11:24:53,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-16 11:24:53,081 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 136 [2022-11-16 11:24:53,084 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 191 transitions, 1654 flow. Second operand has 11 states, 11 states have (on average 110.72727272727273) internal successors, (1218), 11 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:53,084 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:24:53,084 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 136 [2022-11-16 11:24:53,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:24:54,592 INFO L130 PetriNetUnfolder]: 2300/4982 cut-off events. [2022-11-16 11:24:54,592 INFO L131 PetriNetUnfolder]: For 61643/68990 co-relation queries the response was YES. [2022-11-16 11:24:54,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29164 conditions, 4982 events. 2300/4982 cut-off events. For 61643/68990 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 39605 event pairs, 310 based on Foata normal form. 517/5213 useless extension candidates. Maximal degree in co-relation 29047. Up to 2016 conditions per place. [2022-11-16 11:24:54,650 INFO L137 encePairwiseOnDemand]: 124/136 looper letters, 40 selfloop transitions, 22 changer transitions 52/261 dead transitions. [2022-11-16 11:24:54,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 261 transitions, 2872 flow [2022-11-16 11:24:54,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:24:54,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:24:54,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1476 transitions. [2022-11-16 11:24:54,654 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.834841628959276 [2022-11-16 11:24:54,654 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1476 transitions. [2022-11-16 11:24:54,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1476 transitions. [2022-11-16 11:24:54,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:24:54,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1476 transitions. [2022-11-16 11:24:54,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.53846153846153) internal successors, (1476), 13 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:54,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:54,663 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:54,663 INFO L175 Difference]: Start difference. First operand has 187 places, 191 transitions, 1654 flow. Second operand 13 states and 1476 transitions. [2022-11-16 11:24:54,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 261 transitions, 2872 flow [2022-11-16 11:24:54,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 261 transitions, 2715 flow, removed 78 selfloop flow, removed 13 redundant places. [2022-11-16 11:24:54,807 INFO L231 Difference]: Finished difference. Result has 184 places, 198 transitions, 1765 flow [2022-11-16 11:24:54,807 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1519, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1765, PETRI_PLACES=184, PETRI_TRANSITIONS=198} [2022-11-16 11:24:54,811 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 41 predicate places. [2022-11-16 11:24:54,811 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 198 transitions, 1765 flow [2022-11-16 11:24:54,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 110.72727272727273) internal successors, (1218), 11 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:54,812 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:24:54,812 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:54,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:24:54,812 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:24:54,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:54,813 INFO L85 PathProgramCache]: Analyzing trace with hash 877623225, now seen corresponding path program 1 times [2022-11-16 11:24:54,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:54,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037667175] [2022-11-16 11:24:54,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:54,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:55,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:55,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:55,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037667175] [2022-11-16 11:24:55,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037667175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:55,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:55,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:24:55,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632162744] [2022-11-16 11:24:55,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:55,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:24:55,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:55,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:24:55,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:24:55,413 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2022-11-16 11:24:55,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 198 transitions, 1765 flow. Second operand has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:55,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:24:55,415 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2022-11-16 11:24:55,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:24:57,376 INFO L130 PetriNetUnfolder]: 2342/5232 cut-off events. [2022-11-16 11:24:57,377 INFO L131 PetriNetUnfolder]: For 63906/86709 co-relation queries the response was YES. [2022-11-16 11:24:57,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33534 conditions, 5232 events. 2342/5232 cut-off events. For 63906/86709 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 42859 event pairs, 344 based on Foata normal form. 57/5134 useless extension candidates. Maximal degree in co-relation 33414. Up to 1958 conditions per place. [2022-11-16 11:24:57,419 INFO L137 encePairwiseOnDemand]: 121/136 looper letters, 92 selfloop transitions, 61 changer transitions 87/322 dead transitions. [2022-11-16 11:24:57,419 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 322 transitions, 4174 flow [2022-11-16 11:24:57,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:24:57,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:24:57,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1397 transitions. [2022-11-16 11:24:57,424 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.790158371040724 [2022-11-16 11:24:57,424 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1397 transitions. [2022-11-16 11:24:57,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1397 transitions. [2022-11-16 11:24:57,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:24:57,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1397 transitions. [2022-11-16 11:24:57,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 107.46153846153847) internal successors, (1397), 13 states have internal predecessors, (1397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:57,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:57,432 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:57,432 INFO L175 Difference]: Start difference. First operand has 184 places, 198 transitions, 1765 flow. Second operand 13 states and 1397 transitions. [2022-11-16 11:24:57,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 322 transitions, 4174 flow [2022-11-16 11:24:57,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 322 transitions, 4042 flow, removed 41 selfloop flow, removed 8 redundant places. [2022-11-16 11:24:57,603 INFO L231 Difference]: Finished difference. Result has 194 places, 211 transitions, 2211 flow [2022-11-16 11:24:57,604 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=1709, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2211, PETRI_PLACES=194, PETRI_TRANSITIONS=211} [2022-11-16 11:24:57,604 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 51 predicate places. [2022-11-16 11:24:57,605 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 211 transitions, 2211 flow [2022-11-16 11:24:57,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 103.0) internal successors, (721), 7 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:57,605 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:24:57,605 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:24:57,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:24:57,606 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:24:57,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:57,606 INFO L85 PathProgramCache]: Analyzing trace with hash -481347339, now seen corresponding path program 1 times [2022-11-16 11:24:57,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:57,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264336218] [2022-11-16 11:24:57,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:57,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:24:58,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:24:58,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:24:58,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264336218] [2022-11-16 11:24:58,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264336218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:24:58,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:24:58,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-16 11:24:58,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181104880] [2022-11-16 11:24:58,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:24:58,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 11:24:58,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:24:58,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 11:24:58,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-16 11:24:58,721 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2022-11-16 11:24:58,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 211 transitions, 2211 flow. Second operand has 10 states, 10 states have (on average 101.7) internal successors, (1017), 10 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:24:58,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:24:58,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2022-11-16 11:24:58,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:01,265 INFO L130 PetriNetUnfolder]: 2561/5737 cut-off events. [2022-11-16 11:25:01,265 INFO L131 PetriNetUnfolder]: For 101100/126363 co-relation queries the response was YES. [2022-11-16 11:25:01,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41081 conditions, 5737 events. 2561/5737 cut-off events. For 101100/126363 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 47468 event pairs, 233 based on Foata normal form. 228/5720 useless extension candidates. Maximal degree in co-relation 40955. Up to 2182 conditions per place. [2022-11-16 11:25:01,320 INFO L137 encePairwiseOnDemand]: 118/136 looper letters, 95 selfloop transitions, 110 changer transitions 113/400 dead transitions. [2022-11-16 11:25:01,320 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 400 transitions, 6332 flow [2022-11-16 11:25:01,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 11:25:01,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 11:25:01,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1929 transitions. [2022-11-16 11:25:01,326 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7879901960784313 [2022-11-16 11:25:01,326 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1929 transitions. [2022-11-16 11:25:01,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1929 transitions. [2022-11-16 11:25:01,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:01,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1929 transitions. [2022-11-16 11:25:01,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 107.16666666666667) internal successors, (1929), 18 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:01,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 136.0) internal successors, (2584), 19 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:01,336 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 136.0) internal successors, (2584), 19 states have internal predecessors, (2584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:01,336 INFO L175 Difference]: Start difference. First operand has 194 places, 211 transitions, 2211 flow. Second operand 18 states and 1929 transitions. [2022-11-16 11:25:01,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 400 transitions, 6332 flow [2022-11-16 11:25:01,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 400 transitions, 6026 flow, removed 153 selfloop flow, removed 9 redundant places. [2022-11-16 11:25:01,508 INFO L231 Difference]: Finished difference. Result has 206 places, 262 transitions, 3470 flow [2022-11-16 11:25:01,509 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=2151, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3470, PETRI_PLACES=206, PETRI_TRANSITIONS=262} [2022-11-16 11:25:01,509 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 63 predicate places. [2022-11-16 11:25:01,509 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 262 transitions, 3470 flow [2022-11-16 11:25:01,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 101.7) internal successors, (1017), 10 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:01,510 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:01,510 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:01,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:25:01,511 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:25:01,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:01,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1303777131, now seen corresponding path program 2 times [2022-11-16 11:25:01,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:01,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135927118] [2022-11-16 11:25:01,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:01,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:02,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:02,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:02,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135927118] [2022-11-16 11:25:02,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135927118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:02,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:02,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:25:02,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476760019] [2022-11-16 11:25:02,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:02,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:25:02,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:02,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:25:02,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:25:02,573 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 136 [2022-11-16 11:25:02,574 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 262 transitions, 3470 flow. Second operand has 9 states, 9 states have (on average 113.88888888888889) internal successors, (1025), 9 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:02,574 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:02,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 136 [2022-11-16 11:25:02,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:04,144 INFO L130 PetriNetUnfolder]: 2355/5342 cut-off events. [2022-11-16 11:25:04,145 INFO L131 PetriNetUnfolder]: For 150181/183456 co-relation queries the response was YES. [2022-11-16 11:25:04,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42396 conditions, 5342 events. 2355/5342 cut-off events. For 150181/183456 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 45005 event pairs, 209 based on Foata normal form. 958/6068 useless extension candidates. Maximal degree in co-relation 42269. Up to 2368 conditions per place. [2022-11-16 11:25:04,198 INFO L137 encePairwiseOnDemand]: 126/136 looper letters, 65 selfloop transitions, 43 changer transitions 48/338 dead transitions. [2022-11-16 11:25:04,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 338 transitions, 5738 flow [2022-11-16 11:25:04,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 11:25:04,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 11:25:04,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1285 transitions. [2022-11-16 11:25:04,201 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.858957219251337 [2022-11-16 11:25:04,201 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1285 transitions. [2022-11-16 11:25:04,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1285 transitions. [2022-11-16 11:25:04,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:04,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1285 transitions. [2022-11-16 11:25:04,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 116.81818181818181) internal successors, (1285), 11 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:04,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 136.0) internal successors, (1632), 12 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:04,208 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 136.0) internal successors, (1632), 12 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:04,209 INFO L175 Difference]: Start difference. First operand has 206 places, 262 transitions, 3470 flow. Second operand 11 states and 1285 transitions. [2022-11-16 11:25:04,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 338 transitions, 5738 flow [2022-11-16 11:25:04,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 338 transitions, 5245 flow, removed 182 selfloop flow, removed 5 redundant places. [2022-11-16 11:25:04,637 INFO L231 Difference]: Finished difference. Result has 210 places, 285 transitions, 3887 flow [2022-11-16 11:25:04,638 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=3156, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3887, PETRI_PLACES=210, PETRI_TRANSITIONS=285} [2022-11-16 11:25:04,638 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 67 predicate places. [2022-11-16 11:25:04,639 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 285 transitions, 3887 flow [2022-11-16 11:25:04,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 113.88888888888889) internal successors, (1025), 9 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:04,639 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:04,639 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:04,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:25:04,640 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:25:04,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:04,640 INFO L85 PathProgramCache]: Analyzing trace with hash -820221231, now seen corresponding path program 3 times [2022-11-16 11:25:04,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:04,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697003366] [2022-11-16 11:25:04,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:04,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:06,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:06,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:06,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697003366] [2022-11-16 11:25:06,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697003366] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:06,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:06,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:25:06,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874028101] [2022-11-16 11:25:06,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:06,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:25:06,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:06,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:25:06,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:25:06,294 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2022-11-16 11:25:06,296 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 285 transitions, 3887 flow. Second operand has 13 states, 13 states have (on average 101.07692307692308) internal successors, (1314), 13 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:06,296 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:06,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2022-11-16 11:25:06,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:08,293 INFO L130 PetriNetUnfolder]: 2669/6050 cut-off events. [2022-11-16 11:25:08,293 INFO L131 PetriNetUnfolder]: For 123046/221390 co-relation queries the response was YES. [2022-11-16 11:25:08,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47778 conditions, 6050 events. 2669/6050 cut-off events. For 123046/221390 co-relation queries the response was YES. Maximal size of possible extension queue 341. Compared 52228 event pairs, 283 based on Foata normal form. 184/6090 useless extension candidates. Maximal degree in co-relation 47639. Up to 2746 conditions per place. [2022-11-16 11:25:08,349 INFO L137 encePairwiseOnDemand]: 117/136 looper letters, 194 selfloop transitions, 78 changer transitions 110/464 dead transitions. [2022-11-16 11:25:08,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 464 transitions, 8417 flow [2022-11-16 11:25:08,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 11:25:08,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-16 11:25:08,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1699 transitions. [2022-11-16 11:25:08,354 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7807904411764706 [2022-11-16 11:25:08,354 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1699 transitions. [2022-11-16 11:25:08,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1699 transitions. [2022-11-16 11:25:08,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:08,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1699 transitions. [2022-11-16 11:25:08,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 106.1875) internal successors, (1699), 16 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:08,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:08,364 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 136.0) internal successors, (2312), 17 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:08,365 INFO L175 Difference]: Start difference. First operand has 210 places, 285 transitions, 3887 flow. Second operand 16 states and 1699 transitions. [2022-11-16 11:25:08,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 464 transitions, 8417 flow [2022-11-16 11:25:08,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 464 transitions, 8118 flow, removed 149 selfloop flow, removed 13 redundant places. [2022-11-16 11:25:08,756 INFO L231 Difference]: Finished difference. Result has 216 places, 319 transitions, 4786 flow [2022-11-16 11:25:08,757 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=3772, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=4786, PETRI_PLACES=216, PETRI_TRANSITIONS=319} [2022-11-16 11:25:08,757 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 73 predicate places. [2022-11-16 11:25:08,757 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 319 transitions, 4786 flow [2022-11-16 11:25:08,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 101.07692307692308) internal successors, (1314), 13 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:08,759 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:08,759 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:08,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:25:08,759 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:25:08,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:08,760 INFO L85 PathProgramCache]: Analyzing trace with hash 430774612, now seen corresponding path program 1 times [2022-11-16 11:25:08,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:08,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662157404] [2022-11-16 11:25:08,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:08,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:09,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:09,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:09,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662157404] [2022-11-16 11:25:09,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662157404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:09,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:09,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:25:09,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366947502] [2022-11-16 11:25:09,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:09,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:25:09,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:09,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:25:09,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:25:09,702 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 136 [2022-11-16 11:25:09,703 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 319 transitions, 4786 flow. Second operand has 13 states, 13 states have (on average 111.53846153846153) internal successors, (1450), 13 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:09,703 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:09,703 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 136 [2022-11-16 11:25:09,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:11,187 INFO L130 PetriNetUnfolder]: 1996/4859 cut-off events. [2022-11-16 11:25:11,187 INFO L131 PetriNetUnfolder]: For 109026/189418 co-relation queries the response was YES. [2022-11-16 11:25:11,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37350 conditions, 4859 events. 1996/4859 cut-off events. For 109026/189418 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 42886 event pairs, 165 based on Foata normal form. 454/5145 useless extension candidates. Maximal degree in co-relation 37212. Up to 2023 conditions per place. [2022-11-16 11:25:11,251 INFO L137 encePairwiseOnDemand]: 123/136 looper letters, 76 selfloop transitions, 50 changer transitions 18/344 dead transitions. [2022-11-16 11:25:11,251 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 344 transitions, 5734 flow [2022-11-16 11:25:11,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 11:25:11,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-16 11:25:11,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1694 transitions. [2022-11-16 11:25:11,255 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8303921568627451 [2022-11-16 11:25:11,255 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1694 transitions. [2022-11-16 11:25:11,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1694 transitions. [2022-11-16 11:25:11,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:11,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1694 transitions. [2022-11-16 11:25:11,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 112.93333333333334) internal successors, (1694), 15 states have internal predecessors, (1694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:11,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 136.0) internal successors, (2176), 16 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:11,266 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 136.0) internal successors, (2176), 16 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:11,266 INFO L175 Difference]: Start difference. First operand has 216 places, 319 transitions, 4786 flow. Second operand 15 states and 1694 transitions. [2022-11-16 11:25:11,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 344 transitions, 5734 flow [2022-11-16 11:25:11,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 344 transitions, 5408 flow, removed 160 selfloop flow, removed 9 redundant places. [2022-11-16 11:25:11,600 INFO L231 Difference]: Finished difference. Result has 222 places, 322 transitions, 4800 flow [2022-11-16 11:25:11,601 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=4554, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4800, PETRI_PLACES=222, PETRI_TRANSITIONS=322} [2022-11-16 11:25:11,601 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 79 predicate places. [2022-11-16 11:25:11,602 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 322 transitions, 4800 flow [2022-11-16 11:25:11,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 111.53846153846153) internal successors, (1450), 13 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:11,603 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:11,603 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:11,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:25:11,604 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:25:11,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:11,604 INFO L85 PathProgramCache]: Analyzing trace with hash -786492680, now seen corresponding path program 2 times [2022-11-16 11:25:11,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:11,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460095497] [2022-11-16 11:25:11,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:11,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:13,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:13,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:13,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460095497] [2022-11-16 11:25:13,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460095497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:13,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:13,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:25:13,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961860516] [2022-11-16 11:25:13,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:13,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 11:25:13,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:13,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 11:25:13,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-16 11:25:13,212 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 136 [2022-11-16 11:25:13,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 322 transitions, 4800 flow. Second operand has 12 states, 12 states have (on average 101.33333333333333) internal successors, (1216), 12 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:13,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:13,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 136 [2022-11-16 11:25:13,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:14,980 INFO L130 PetriNetUnfolder]: 2378/5707 cut-off events. [2022-11-16 11:25:14,980 INFO L131 PetriNetUnfolder]: For 112835/204938 co-relation queries the response was YES. [2022-11-16 11:25:15,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44350 conditions, 5707 events. 2378/5707 cut-off events. For 112835/204938 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 51009 event pairs, 287 based on Foata normal form. 329/5840 useless extension candidates. Maximal degree in co-relation 44204. Up to 2900 conditions per place. [2022-11-16 11:25:15,037 INFO L137 encePairwiseOnDemand]: 124/136 looper letters, 241 selfloop transitions, 32 changer transitions 74/429 dead transitions. [2022-11-16 11:25:15,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 429 transitions, 7631 flow [2022-11-16 11:25:15,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 11:25:15,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 11:25:15,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1374 transitions. [2022-11-16 11:25:15,042 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7771493212669683 [2022-11-16 11:25:15,042 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1374 transitions. [2022-11-16 11:25:15,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1374 transitions. [2022-11-16 11:25:15,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:15,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1374 transitions. [2022-11-16 11:25:15,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 105.6923076923077) internal successors, (1374), 13 states have internal predecessors, (1374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:15,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:15,048 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:15,048 INFO L175 Difference]: Start difference. First operand has 222 places, 322 transitions, 4800 flow. Second operand 13 states and 1374 transitions. [2022-11-16 11:25:15,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 429 transitions, 7631 flow [2022-11-16 11:25:15,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 429 transitions, 7396 flow, removed 76 selfloop flow, removed 13 redundant places. [2022-11-16 11:25:15,409 INFO L231 Difference]: Finished difference. Result has 222 places, 325 transitions, 4863 flow [2022-11-16 11:25:15,409 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=4653, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4863, PETRI_PLACES=222, PETRI_TRANSITIONS=325} [2022-11-16 11:25:15,410 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 79 predicate places. [2022-11-16 11:25:15,410 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 325 transitions, 4863 flow [2022-11-16 11:25:15,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 101.33333333333333) internal successors, (1216), 12 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:15,411 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:15,411 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:15,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:25:15,411 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:25:15,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:15,412 INFO L85 PathProgramCache]: Analyzing trace with hash -128903954, now seen corresponding path program 3 times [2022-11-16 11:25:15,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:15,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477620001] [2022-11-16 11:25:15,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:15,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:16,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:16,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:16,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477620001] [2022-11-16 11:25:16,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477620001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:16,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:16,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 11:25:16,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601063120] [2022-11-16 11:25:16,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:16,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:25:16,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:16,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:25:16,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:25:16,499 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 136 [2022-11-16 11:25:16,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 325 transitions, 4863 flow. Second operand has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:16,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:16,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 136 [2022-11-16 11:25:16,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:18,803 INFO L130 PetriNetUnfolder]: 2454/6316 cut-off events. [2022-11-16 11:25:18,803 INFO L131 PetriNetUnfolder]: For 115780/210435 co-relation queries the response was YES. [2022-11-16 11:25:18,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46576 conditions, 6316 events. 2454/6316 cut-off events. For 115780/210435 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 58783 event pairs, 177 based on Foata normal form. 446/6509 useless extension candidates. Maximal degree in co-relation 46432. Up to 2236 conditions per place. [2022-11-16 11:25:18,868 INFO L137 encePairwiseOnDemand]: 118/136 looper letters, 184 selfloop transitions, 140 changer transitions 108/516 dead transitions. [2022-11-16 11:25:18,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 516 transitions, 9569 flow [2022-11-16 11:25:18,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:25:18,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:25:18,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2146 transitions. [2022-11-16 11:25:18,872 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7889705882352941 [2022-11-16 11:25:18,872 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2146 transitions. [2022-11-16 11:25:18,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2146 transitions. [2022-11-16 11:25:18,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:18,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2146 transitions. [2022-11-16 11:25:18,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 107.3) internal successors, (2146), 20 states have internal predecessors, (2146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:18,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 136.0) internal successors, (2856), 21 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:18,880 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 136.0) internal successors, (2856), 21 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:18,881 INFO L175 Difference]: Start difference. First operand has 222 places, 325 transitions, 4863 flow. Second operand 20 states and 2146 transitions. [2022-11-16 11:25:18,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 516 transitions, 9569 flow [2022-11-16 11:25:19,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 516 transitions, 9322 flow, removed 105 selfloop flow, removed 10 redundant places. [2022-11-16 11:25:19,213 INFO L231 Difference]: Finished difference. Result has 241 places, 366 transitions, 6296 flow [2022-11-16 11:25:19,214 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=4767, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6296, PETRI_PLACES=241, PETRI_TRANSITIONS=366} [2022-11-16 11:25:19,214 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 98 predicate places. [2022-11-16 11:25:19,214 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 366 transitions, 6296 flow [2022-11-16 11:25:19,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:19,215 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:19,215 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:19,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:25:19,215 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:25:19,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:19,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1912379498, now seen corresponding path program 4 times [2022-11-16 11:25:19,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:19,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572379339] [2022-11-16 11:25:19,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:19,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:20,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:20,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:20,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572379339] [2022-11-16 11:25:20,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572379339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:20,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:20,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-16 11:25:20,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014968724] [2022-11-16 11:25:20,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:20,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 11:25:20,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:20,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 11:25:20,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-16 11:25:20,717 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 136 [2022-11-16 11:25:20,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 366 transitions, 6296 flow. Second operand has 15 states, 15 states have (on average 99.93333333333334) internal successors, (1499), 15 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:20,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:20,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 136 [2022-11-16 11:25:20,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:23,322 INFO L130 PetriNetUnfolder]: 2384/6392 cut-off events. [2022-11-16 11:25:23,322 INFO L131 PetriNetUnfolder]: For 135535/233794 co-relation queries the response was YES. [2022-11-16 11:25:23,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49987 conditions, 6392 events. 2384/6392 cut-off events. For 135535/233794 co-relation queries the response was YES. Maximal size of possible extension queue 443. Compared 62367 event pairs, 101 based on Foata normal form. 432/6646 useless extension candidates. Maximal degree in co-relation 49827. Up to 2171 conditions per place. [2022-11-16 11:25:23,391 INFO L137 encePairwiseOnDemand]: 115/136 looper letters, 266 selfloop transitions, 177 changer transitions 93/617 dead transitions. [2022-11-16 11:25:23,392 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 617 transitions, 12560 flow [2022-11-16 11:25:23,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 11:25:23,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-16 11:25:23,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2307 transitions. [2022-11-16 11:25:23,394 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7710561497326203 [2022-11-16 11:25:23,394 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2307 transitions. [2022-11-16 11:25:23,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2307 transitions. [2022-11-16 11:25:23,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:23,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2307 transitions. [2022-11-16 11:25:23,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 104.86363636363636) internal successors, (2307), 22 states have internal predecessors, (2307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:23,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 136.0) internal successors, (3128), 23 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:23,403 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 136.0) internal successors, (3128), 23 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:23,403 INFO L175 Difference]: Start difference. First operand has 241 places, 366 transitions, 6296 flow. Second operand 22 states and 2307 transitions. [2022-11-16 11:25:23,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 617 transitions, 12560 flow [2022-11-16 11:25:23,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 617 transitions, 12301 flow, removed 127 selfloop flow, removed 12 redundant places. [2022-11-16 11:25:23,928 INFO L231 Difference]: Finished difference. Result has 254 places, 432 transitions, 8416 flow [2022-11-16 11:25:23,929 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=6197, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=8416, PETRI_PLACES=254, PETRI_TRANSITIONS=432} [2022-11-16 11:25:23,929 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 111 predicate places. [2022-11-16 11:25:23,930 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 432 transitions, 8416 flow [2022-11-16 11:25:23,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 99.93333333333334) internal successors, (1499), 15 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:23,930 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:23,930 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:23,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:25:23,931 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:25:23,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:23,931 INFO L85 PathProgramCache]: Analyzing trace with hash -14641898, now seen corresponding path program 1 times [2022-11-16 11:25:23,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:23,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922922324] [2022-11-16 11:25:23,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:23,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:24,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:24,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:24,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922922324] [2022-11-16 11:25:24,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922922324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:24,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:24,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 11:25:24,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736799822] [2022-11-16 11:25:24,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:24,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:25:24,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:24,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:25:24,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:25:24,290 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 136 [2022-11-16 11:25:24,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 432 transitions, 8416 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:24,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:24,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 136 [2022-11-16 11:25:24,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:25:37,656 INFO L130 PetriNetUnfolder]: 24670/44840 cut-off events. [2022-11-16 11:25:37,656 INFO L131 PetriNetUnfolder]: For 1386591/1533426 co-relation queries the response was YES. [2022-11-16 11:25:38,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265281 conditions, 44840 events. 24670/44840 cut-off events. For 1386591/1533426 co-relation queries the response was YES. Maximal size of possible extension queue 3495. Compared 457630 event pairs, 1432 based on Foata normal form. 4921/46732 useless extension candidates. Maximal degree in co-relation 265119. Up to 15360 conditions per place. [2022-11-16 11:25:38,604 INFO L137 encePairwiseOnDemand]: 125/136 looper letters, 387 selfloop transitions, 20 changer transitions 97/774 dead transitions. [2022-11-16 11:25:38,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 774 transitions, 18933 flow [2022-11-16 11:25:38,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 11:25:38,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 11:25:38,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1194 transitions. [2022-11-16 11:25:38,607 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8779411764705882 [2022-11-16 11:25:38,607 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1194 transitions. [2022-11-16 11:25:38,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1194 transitions. [2022-11-16 11:25:38,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:25:38,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1194 transitions. [2022-11-16 11:25:38,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 119.4) internal successors, (1194), 10 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:38,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:38,611 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 136.0) internal successors, (1496), 11 states have internal predecessors, (1496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:38,612 INFO L175 Difference]: Start difference. First operand has 254 places, 432 transitions, 8416 flow. Second operand 10 states and 1194 transitions. [2022-11-16 11:25:38,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 774 transitions, 18933 flow [2022-11-16 11:25:42,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 774 transitions, 18466 flow, removed 148 selfloop flow, removed 11 redundant places. [2022-11-16 11:25:42,838 INFO L231 Difference]: Finished difference. Result has 249 places, 428 transitions, 7895 flow [2022-11-16 11:25:42,839 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=7752, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7895, PETRI_PLACES=249, PETRI_TRANSITIONS=428} [2022-11-16 11:25:42,839 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 106 predicate places. [2022-11-16 11:25:42,840 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 428 transitions, 7895 flow [2022-11-16 11:25:42,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:42,840 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:25:42,840 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:25:42,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:25:42,840 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 11:25:42,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:25:42,841 INFO L85 PathProgramCache]: Analyzing trace with hash 623724526, now seen corresponding path program 1 times [2022-11-16 11:25:42,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:25:42,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316025889] [2022-11-16 11:25:42,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:25:42,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:25:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:25:43,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:25:43,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:25:43,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316025889] [2022-11-16 11:25:43,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316025889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:25:43,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:25:43,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:25:43,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017422650] [2022-11-16 11:25:43,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:25:43,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:25:43,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:25:43,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:25:43,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:25:43,051 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 136 [2022-11-16 11:25:43,052 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 428 transitions, 7895 flow. Second operand has 7 states, 7 states have (on average 113.28571428571429) internal successors, (793), 7 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:25:43,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:25:43,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 136 [2022-11-16 11:25:43,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand