./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix005.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix005.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc --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 0c4e58b38f229da1b25a4c7b1c830f1f36e4dc5c1e18903f04a209f4b4cfa3c5 --- 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-5e519f3 [2022-11-02 20:41:14,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:41:14,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:41:14,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:41:14,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:41:14,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:41:14,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:41:14,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:41:14,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:41:14,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:41:14,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:41:14,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:41:14,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:41:14,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:41:14,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:41:14,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:41:14,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:41:14,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:41:14,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:41:14,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:41:14,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:41:14,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:41:14,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:41:14,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:41:14,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:41:14,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:41:14,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:41:14,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:41:14,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:41:14,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:41:14,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:41:14,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:41:14,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:41:14,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:41:14,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:41:14,496 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:41:14,497 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:41:14,497 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:41:14,497 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:41:14,498 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:41:14,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:41:14,503 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:41:14,546 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:41:14,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:41:14,547 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:41:14,547 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:41:14,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:41:14,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:41:14,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:41:14,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:41:14,549 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:41:14,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:41:14,551 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:41:14,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:41:14,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:41:14,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:41:14,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:41:14,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:41:14,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:41:14,552 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:41:14,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:41:14,553 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:41:14,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:41:14,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:41:14,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:41:14,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:41:14,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:41:14,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:41:14,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:41:14,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:41:14,555 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:41:14,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:41:14,555 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:41:14,555 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:41:14,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:41:14,556 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_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c4e58b38f229da1b25a4c7b1c830f1f36e4dc5c1e18903f04a209f4b4cfa3c5 [2022-11-02 20:41:14,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:41:14,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:41:14,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:41:14,863 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:41:14,864 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:41:14,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-wmm/mix005.opt.i [2022-11-02 20:41:14,955 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc/data/6140df223/a9105bb2f2b843f0b8f7ab223fe20c2f/FLAG695513759 [2022-11-02 20:41:15,584 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:41:15,585 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a049ddb-e2d5-47ba-a692-2848afa935db/sv-benchmarks/c/pthread-wmm/mix005.opt.i [2022-11-02 20:41:15,608 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc/data/6140df223/a9105bb2f2b843f0b8f7ab223fe20c2f/FLAG695513759 [2022-11-02 20:41:15,867 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc/data/6140df223/a9105bb2f2b843f0b8f7ab223fe20c2f [2022-11-02 20:41:15,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:41:15,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:41:15,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:41:15,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:41:15,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:41:15,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:41:15" (1/1) ... [2022-11-02 20:41:15,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@668ca162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:15, skipping insertion in model container [2022-11-02 20:41:15,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:41:15" (1/1) ... [2022-11-02 20:41:15,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:41:15,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:41:16,149 WARN L230 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_1a049ddb-e2d5-47ba-a692-2848afa935db/sv-benchmarks/c/pthread-wmm/mix005.opt.i[944,957] [2022-11-02 20:41:16,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:41:16,362 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:41:16,374 WARN L230 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_1a049ddb-e2d5-47ba-a692-2848afa935db/sv-benchmarks/c/pthread-wmm/mix005.opt.i[944,957] [2022-11-02 20:41:16,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:41:16,508 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:41:16,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:16 WrapperNode [2022-11-02 20:41:16,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:41:16,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:41:16,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:41:16,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:41:16,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:16" (1/1) ... [2022-11-02 20:41:16,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:16" (1/1) ... [2022-11-02 20:41:16,602 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 296 [2022-11-02 20:41:16,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:41:16,611 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:41:16,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:41:16,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:41:16,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:16" (1/1) ... [2022-11-02 20:41:16,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:16" (1/1) ... [2022-11-02 20:41:16,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:16" (1/1) ... [2022-11-02 20:41:16,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:16" (1/1) ... [2022-11-02 20:41:16,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:16" (1/1) ... [2022-11-02 20:41:16,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:16" (1/1) ... [2022-11-02 20:41:16,671 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:16" (1/1) ... [2022-11-02 20:41:16,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:16" (1/1) ... [2022-11-02 20:41:16,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:41:16,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:41:16,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:41:16,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:41:16,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:16" (1/1) ... [2022-11-02 20:41:16,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:41:16,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:41:16,722 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:41:16,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a049ddb-e2d5-47ba-a692-2848afa935db/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:41:16,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:41:16,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:41:16,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:41:16,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:41:16,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:41:16,772 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-02 20:41:16,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-02 20:41:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-02 20:41:16,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-02 20:41:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-02 20:41:16,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-02 20:41:16,773 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-02 20:41:16,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-02 20:41:16,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:41:16,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:41:16,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:41:16,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:41:16,776 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:41:16,970 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:41:16,989 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:41:17,852 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:41:18,480 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:41:18,480 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:41:18,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:41:18 BoogieIcfgContainer [2022-11-02 20:41:18,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:41:18,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:41:18,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:41:18,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:41:18,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:41:15" (1/3) ... [2022-11-02 20:41:18,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29be363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:41:18, skipping insertion in model container [2022-11-02 20:41:18,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:41:16" (2/3) ... [2022-11-02 20:41:18,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29be363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:41:18, skipping insertion in model container [2022-11-02 20:41:18,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:41:18" (3/3) ... [2022-11-02 20:41:18,495 INFO L112 eAbstractionObserver]: Analyzing ICFG mix005.opt.i [2022-11-02 20:41:18,505 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:41:18,516 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:41:18,516 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 20:41:18,516 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:41:18,646 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:41:18,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 148 places, 137 transitions, 294 flow [2022-11-02 20:41:18,784 INFO L130 PetriNetUnfolder]: 2/133 cut-off events. [2022-11-02 20:41:18,785 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:41:18,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 133 events. 2/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-11-02 20:41:18,790 INFO L82 GeneralOperation]: Start removeDead. Operand has 148 places, 137 transitions, 294 flow [2022-11-02 20:41:18,799 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 133 transitions, 278 flow [2022-11-02 20:41:18,822 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:41:18,833 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;@34c311a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:41:18,833 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-02 20:41:18,868 INFO L130 PetriNetUnfolder]: 0/91 cut-off events. [2022-11-02 20:41:18,869 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:41:18,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:41:18,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:18,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:41:18,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:18,878 INFO L85 PathProgramCache]: Analyzing trace with hash 488251171, now seen corresponding path program 1 times [2022-11-02 20:41:18,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:18,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614066369] [2022-11-02 20:41:18,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:18,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:19,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:19,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:19,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614066369] [2022-11-02 20:41:19,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614066369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:19,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:19,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:41:19,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992865115] [2022-11-02 20:41:19,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:19,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:41:19,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:19,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:41:19,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:41:19,643 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 137 [2022-11-02 20:41:19,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 133 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:19,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:41:19,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 137 [2022-11-02 20:41:19,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:41:19,842 INFO L130 PetriNetUnfolder]: 14/214 cut-off events. [2022-11-02 20:41:19,842 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 20:41:19,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 214 events. 14/214 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 465 event pairs, 6 based on Foata normal form. 6/209 useless extension candidates. Maximal degree in co-relation 206. Up to 25 conditions per place. [2022-11-02 20:41:19,846 INFO L137 encePairwiseOnDemand]: 132/137 looper letters, 10 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2022-11-02 20:41:19,846 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 131 transitions, 298 flow [2022-11-02 20:41:19,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:41:19,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:41:19,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2022-11-02 20:41:19,861 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9391727493917275 [2022-11-02 20:41:19,862 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2022-11-02 20:41:19,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2022-11-02 20:41:19,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:41:19,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2022-11-02 20:41:19,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:19,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:19,876 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:19,878 INFO L175 Difference]: Start difference. First operand has 144 places, 133 transitions, 278 flow. Second operand 3 states and 386 transitions. [2022-11-02 20:41:19,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 131 transitions, 298 flow [2022-11-02 20:41:19,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 131 transitions, 294 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:41:19,886 INFO L231 Difference]: Finished difference. Result has 140 places, 129 transitions, 270 flow [2022-11-02 20:41:19,888 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=140, PETRI_TRANSITIONS=129} [2022-11-02 20:41:19,891 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, -4 predicate places. [2022-11-02 20:41:19,892 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 129 transitions, 270 flow [2022-11-02 20:41:19,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:19,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:41:19,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:19,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:41:19,894 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)] === [2022-11-02 20:41:19,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:19,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1847271632, now seen corresponding path program 1 times [2022-11-02 20:41:19,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:19,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944307303] [2022-11-02 20:41:19,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:19,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:19,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:20,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:20,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:20,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944307303] [2022-11-02 20:41:20,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944307303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:20,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:20,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:41:20,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919190421] [2022-11-02 20:41:20,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:20,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:41:20,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:20,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:41:20,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:41:20,480 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 137 [2022-11-02 20:41:20,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 129 transitions, 270 flow. Second operand has 7 states, 7 states have (on average 108.42857142857143) internal successors, (759), 7 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:20,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:41:20,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 137 [2022-11-02 20:41:20,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:41:23,112 INFO L130 PetriNetUnfolder]: 3015/7278 cut-off events. [2022-11-02 20:41:23,112 INFO L131 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2022-11-02 20:41:23,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11815 conditions, 7278 events. 3015/7278 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 65789 event pairs, 390 based on Foata normal form. 0/7117 useless extension candidates. Maximal degree in co-relation 11752. Up to 1641 conditions per place. [2022-11-02 20:41:23,173 INFO L137 encePairwiseOnDemand]: 123/137 looper letters, 33 selfloop transitions, 10 changer transitions 89/221 dead transitions. [2022-11-02 20:41:23,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 221 transitions, 698 flow [2022-11-02 20:41:23,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:41:23,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:41:23,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1500 transitions. [2022-11-02 20:41:23,181 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8422234699606962 [2022-11-02 20:41:23,181 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1500 transitions. [2022-11-02 20:41:23,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1500 transitions. [2022-11-02 20:41:23,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:41:23,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1500 transitions. [2022-11-02 20:41:23,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.38461538461539) internal successors, (1500), 13 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:23,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:23,194 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:23,194 INFO L175 Difference]: Start difference. First operand has 140 places, 129 transitions, 270 flow. Second operand 13 states and 1500 transitions. [2022-11-02 20:41:23,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 221 transitions, 698 flow [2022-11-02 20:41:23,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 221 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:41:23,200 INFO L231 Difference]: Finished difference. Result has 162 places, 121 transitions, 360 flow [2022-11-02 20:41:23,201 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=360, PETRI_PLACES=162, PETRI_TRANSITIONS=121} [2022-11-02 20:41:23,202 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 18 predicate places. [2022-11-02 20:41:23,202 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 121 transitions, 360 flow [2022-11-02 20:41:23,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.42857142857143) internal successors, (759), 7 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:23,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:41:23,203 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:23,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:41:23,204 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)] === [2022-11-02 20:41:23,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:23,204 INFO L85 PathProgramCache]: Analyzing trace with hash -576544474, now seen corresponding path program 1 times [2022-11-02 20:41:23,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:23,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890501010] [2022-11-02 20:41:23,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:23,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:23,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:23,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:23,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890501010] [2022-11-02 20:41:23,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890501010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:23,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:23,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:41:23,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782891097] [2022-11-02 20:41:23,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:23,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:41:23,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:23,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:41:23,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:41:23,619 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 137 [2022-11-02 20:41:23,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 121 transitions, 360 flow. Second operand has 7 states, 7 states have (on average 108.71428571428571) internal successors, (761), 7 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:23,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:41:23,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 137 [2022-11-02 20:41:23,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:41:25,439 INFO L130 PetriNetUnfolder]: 1919/3926 cut-off events. [2022-11-02 20:41:25,439 INFO L131 PetriNetUnfolder]: For 9880/9896 co-relation queries the response was YES. [2022-11-02 20:41:25,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13904 conditions, 3926 events. 1919/3926 cut-off events. For 9880/9896 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 28135 event pairs, 383 based on Foata normal form. 80/3897 useless extension candidates. Maximal degree in co-relation 13825. Up to 1524 conditions per place. [2022-11-02 20:41:25,485 INFO L137 encePairwiseOnDemand]: 121/137 looper letters, 39 selfloop transitions, 20 changer transitions 67/215 dead transitions. [2022-11-02 20:41:25,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 215 transitions, 1252 flow [2022-11-02 20:41:25,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:41:25,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:41:25,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1501 transitions. [2022-11-02 20:41:25,490 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8427849522740034 [2022-11-02 20:41:25,491 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1501 transitions. [2022-11-02 20:41:25,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1501 transitions. [2022-11-02 20:41:25,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:41:25,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1501 transitions. [2022-11-02 20:41:25,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.46153846153847) internal successors, (1501), 13 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:25,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:25,501 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:25,501 INFO L175 Difference]: Start difference. First operand has 162 places, 121 transitions, 360 flow. Second operand 13 states and 1501 transitions. [2022-11-02 20:41:25,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 215 transitions, 1252 flow [2022-11-02 20:41:25,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 215 transitions, 1200 flow, removed 24 selfloop flow, removed 4 redundant places. [2022-11-02 20:41:25,534 INFO L231 Difference]: Finished difference. Result has 158 places, 129 transitions, 509 flow [2022-11-02 20:41:25,535 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=509, PETRI_PLACES=158, PETRI_TRANSITIONS=129} [2022-11-02 20:41:25,535 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 14 predicate places. [2022-11-02 20:41:25,536 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 129 transitions, 509 flow [2022-11-02 20:41:25,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.71428571428571) internal successors, (761), 7 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:25,536 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:41:25,537 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:25,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:41:25,537 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)] === [2022-11-02 20:41:25,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:25,538 INFO L85 PathProgramCache]: Analyzing trace with hash -763909537, now seen corresponding path program 1 times [2022-11-02 20:41:25,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:25,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858196162] [2022-11-02 20:41:25,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:25,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:25,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:25,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:25,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858196162] [2022-11-02 20:41:25,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858196162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:25,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:25,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:41:25,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911835448] [2022-11-02 20:41:25,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:25,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:41:25,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:25,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:41:25,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:41:25,921 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 137 [2022-11-02 20:41:25,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 129 transitions, 509 flow. Second operand has 6 states, 6 states have (on average 117.33333333333333) internal successors, (704), 6 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:25,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:41:25,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 137 [2022-11-02 20:41:25,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:41:27,117 INFO L130 PetriNetUnfolder]: 1014/2349 cut-off events. [2022-11-02 20:41:27,118 INFO L131 PetriNetUnfolder]: For 9614/11182 co-relation queries the response was YES. [2022-11-02 20:41:27,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9384 conditions, 2349 events. 1014/2349 cut-off events. For 9614/11182 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 16693 event pairs, 454 based on Foata normal form. 112/2295 useless extension candidates. Maximal degree in co-relation 9295. Up to 988 conditions per place. [2022-11-02 20:41:27,156 INFO L137 encePairwiseOnDemand]: 131/137 looper letters, 24 selfloop transitions, 4 changer transitions 25/160 dead transitions. [2022-11-02 20:41:27,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 160 transitions, 830 flow [2022-11-02 20:41:27,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:41:27,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:41:27,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1078 transitions. [2022-11-02 20:41:27,161 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8742903487429035 [2022-11-02 20:41:27,162 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1078 transitions. [2022-11-02 20:41:27,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1078 transitions. [2022-11-02 20:41:27,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:41:27,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1078 transitions. [2022-11-02 20:41:27,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 119.77777777777777) internal successors, (1078), 9 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:27,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:27,175 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:27,175 INFO L175 Difference]: Start difference. First operand has 158 places, 129 transitions, 509 flow. Second operand 9 states and 1078 transitions. [2022-11-02 20:41:27,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 160 transitions, 830 flow [2022-11-02 20:41:27,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 160 transitions, 776 flow, removed 27 selfloop flow, removed 12 redundant places. [2022-11-02 20:41:27,212 INFO L231 Difference]: Finished difference. Result has 152 places, 129 transitions, 505 flow [2022-11-02 20:41:27,213 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=505, PETRI_PLACES=152, PETRI_TRANSITIONS=129} [2022-11-02 20:41:27,214 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 8 predicate places. [2022-11-02 20:41:27,214 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 129 transitions, 505 flow [2022-11-02 20:41:27,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.33333333333333) internal successors, (704), 6 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:27,215 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:41:27,215 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:27,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:41:27,216 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)] === [2022-11-02 20:41:27,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:27,217 INFO L85 PathProgramCache]: Analyzing trace with hash 52920362, now seen corresponding path program 1 times [2022-11-02 20:41:27,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:27,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662002267] [2022-11-02 20:41:27,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:27,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:27,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:27,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:27,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662002267] [2022-11-02 20:41:27,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662002267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:27,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:27,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:41:27,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257185777] [2022-11-02 20:41:27,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:27,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:41:27,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:27,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:41:27,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:41:27,805 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 137 [2022-11-02 20:41:27,806 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 129 transitions, 505 flow. Second operand has 6 states, 6 states have (on average 114.33333333333333) internal successors, (686), 6 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:27,806 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:41:27,806 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 137 [2022-11-02 20:41:27,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:41:33,353 INFO L130 PetriNetUnfolder]: 9034/15718 cut-off events. [2022-11-02 20:41:33,354 INFO L131 PetriNetUnfolder]: For 32212/52290 co-relation queries the response was YES. [2022-11-02 20:41:33,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44734 conditions, 15718 events. 9034/15718 cut-off events. For 32212/52290 co-relation queries the response was YES. Maximal size of possible extension queue 1215. Compared 131746 event pairs, 719 based on Foata normal form. 154/14380 useless extension candidates. Maximal degree in co-relation 44648. Up to 5144 conditions per place. [2022-11-02 20:41:33,522 INFO L137 encePairwiseOnDemand]: 126/137 looper letters, 71 selfloop transitions, 18 changer transitions 24/218 dead transitions. [2022-11-02 20:41:33,522 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 218 transitions, 1188 flow [2022-11-02 20:41:33,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:41:33,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:41:33,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1211 transitions. [2022-11-02 20:41:33,526 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8839416058394161 [2022-11-02 20:41:33,526 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1211 transitions. [2022-11-02 20:41:33,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1211 transitions. [2022-11-02 20:41:33,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:41:33,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1211 transitions. [2022-11-02 20:41:33,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 121.1) internal successors, (1211), 10 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:33,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:33,533 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 137.0) internal successors, (1507), 11 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:33,533 INFO L175 Difference]: Start difference. First operand has 152 places, 129 transitions, 505 flow. Second operand 10 states and 1211 transitions. [2022-11-02 20:41:33,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 218 transitions, 1188 flow [2022-11-02 20:41:33,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 218 transitions, 1168 flow, removed 6 selfloop flow, removed 8 redundant places. [2022-11-02 20:41:33,573 INFO L231 Difference]: Finished difference. Result has 153 places, 145 transitions, 617 flow [2022-11-02 20:41:33,574 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=617, PETRI_PLACES=153, PETRI_TRANSITIONS=145} [2022-11-02 20:41:33,575 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 9 predicate places. [2022-11-02 20:41:33,575 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 145 transitions, 617 flow [2022-11-02 20:41:33,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.33333333333333) internal successors, (686), 6 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:33,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:41:33,576 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:33,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:41:33,576 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)] === [2022-11-02 20:41:33,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:33,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1063568071, now seen corresponding path program 1 times [2022-11-02 20:41:33,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:33,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042977452] [2022-11-02 20:41:33,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:33,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:33,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:33,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:33,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042977452] [2022-11-02 20:41:33,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042977452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:33,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:33,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:41:33,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345614200] [2022-11-02 20:41:33,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:33,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:41:33,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:33,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:41:33,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:41:33,865 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 137 [2022-11-02 20:41:33,866 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 145 transitions, 617 flow. Second operand has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:33,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:41:33,866 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 137 [2022-11-02 20:41:33,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:41:35,991 INFO L130 PetriNetUnfolder]: 2289/7447 cut-off events. [2022-11-02 20:41:35,991 INFO L131 PetriNetUnfolder]: For 13173/15433 co-relation queries the response was YES. [2022-11-02 20:41:36,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21995 conditions, 7447 events. 2289/7447 cut-off events. For 13173/15433 co-relation queries the response was YES. Maximal size of possible extension queue 585. Compared 81676 event pairs, 995 based on Foata normal form. 164/6992 useless extension candidates. Maximal degree in co-relation 21908. Up to 1725 conditions per place. [2022-11-02 20:41:36,085 INFO L137 encePairwiseOnDemand]: 131/137 looper letters, 46 selfloop transitions, 15 changer transitions 1/179 dead transitions. [2022-11-02 20:41:36,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 179 transitions, 940 flow [2022-11-02 20:41:36,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:41:36,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:41:36,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1081 transitions. [2022-11-02 20:41:36,089 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8767234387672344 [2022-11-02 20:41:36,089 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1081 transitions. [2022-11-02 20:41:36,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1081 transitions. [2022-11-02 20:41:36,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:41:36,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1081 transitions. [2022-11-02 20:41:36,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 120.11111111111111) internal successors, (1081), 9 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:36,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:36,096 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:36,096 INFO L175 Difference]: Start difference. First operand has 153 places, 145 transitions, 617 flow. Second operand 9 states and 1081 transitions. [2022-11-02 20:41:36,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 179 transitions, 940 flow [2022-11-02 20:41:36,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 179 transitions, 938 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:41:36,152 INFO L231 Difference]: Finished difference. Result has 167 places, 152 transitions, 731 flow [2022-11-02 20:41:36,152 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=615, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=731, PETRI_PLACES=167, PETRI_TRANSITIONS=152} [2022-11-02 20:41:36,153 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 23 predicate places. [2022-11-02 20:41:36,153 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 152 transitions, 731 flow [2022-11-02 20:41:36,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.5) internal successors, (699), 6 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:36,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:41:36,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:36,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:41:36,155 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)] === [2022-11-02 20:41:36,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:36,155 INFO L85 PathProgramCache]: Analyzing trace with hash 851184257, now seen corresponding path program 1 times [2022-11-02 20:41:36,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:36,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796716623] [2022-11-02 20:41:36,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:36,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:36,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:36,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:36,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796716623] [2022-11-02 20:41:36,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796716623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:36,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:36,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:41:36,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251893471] [2022-11-02 20:41:36,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:36,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:41:36,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:36,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:41:36,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:41:36,562 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 137 [2022-11-02 20:41:36,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 152 transitions, 731 flow. Second operand has 8 states, 8 states have (on average 107.0) internal successors, (856), 8 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:36,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:41:36,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 137 [2022-11-02 20:41:36,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:41:40,168 INFO L130 PetriNetUnfolder]: 4567/14505 cut-off events. [2022-11-02 20:41:40,169 INFO L131 PetriNetUnfolder]: For 29767/32666 co-relation queries the response was YES. [2022-11-02 20:41:40,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44663 conditions, 14505 events. 4567/14505 cut-off events. For 29767/32666 co-relation queries the response was YES. Maximal size of possible extension queue 1091. Compared 178575 event pairs, 1581 based on Foata normal form. 200/13407 useless extension candidates. Maximal degree in co-relation 44563. Up to 3709 conditions per place. [2022-11-02 20:41:40,371 INFO L137 encePairwiseOnDemand]: 120/137 looper letters, 88 selfloop transitions, 37 changer transitions 11/239 dead transitions. [2022-11-02 20:41:40,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 239 transitions, 1703 flow [2022-11-02 20:41:40,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:41:40,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:41:40,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1029 transitions. [2022-11-02 20:41:40,374 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8345498783454988 [2022-11-02 20:41:40,375 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1029 transitions. [2022-11-02 20:41:40,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1029 transitions. [2022-11-02 20:41:40,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:41:40,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1029 transitions. [2022-11-02 20:41:40,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 114.33333333333333) internal successors, (1029), 9 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:40,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:40,381 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 137.0) internal successors, (1370), 10 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:40,381 INFO L175 Difference]: Start difference. First operand has 167 places, 152 transitions, 731 flow. Second operand 9 states and 1029 transitions. [2022-11-02 20:41:40,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 239 transitions, 1703 flow [2022-11-02 20:41:40,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 239 transitions, 1673 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-11-02 20:41:40,593 INFO L231 Difference]: Finished difference. Result has 182 places, 179 transitions, 1182 flow [2022-11-02 20:41:40,594 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1182, PETRI_PLACES=182, PETRI_TRANSITIONS=179} [2022-11-02 20:41:40,594 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 38 predicate places. [2022-11-02 20:41:40,595 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 179 transitions, 1182 flow [2022-11-02 20:41:40,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 107.0) internal successors, (856), 8 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:40,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:41:40,596 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:40,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:41:40,596 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)] === [2022-11-02 20:41:40,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:40,597 INFO L85 PathProgramCache]: Analyzing trace with hash -579470325, now seen corresponding path program 2 times [2022-11-02 20:41:40,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:40,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698912415] [2022-11-02 20:41:40,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:40,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:40,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:40,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:40,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698912415] [2022-11-02 20:41:40,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698912415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:40,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:40,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:41:40,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692971356] [2022-11-02 20:41:40,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:40,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:41:40,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:40,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:41:40,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:41:40,929 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 137 [2022-11-02 20:41:40,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 179 transitions, 1182 flow. Second operand has 7 states, 7 states have (on average 114.14285714285714) internal successors, (799), 7 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:40,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:41:40,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 137 [2022-11-02 20:41:40,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:41:51,954 INFO L130 PetriNetUnfolder]: 18513/34103 cut-off events. [2022-11-02 20:41:51,954 INFO L131 PetriNetUnfolder]: For 142002/209211 co-relation queries the response was YES. [2022-11-02 20:41:52,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136259 conditions, 34103 events. 18513/34103 cut-off events. For 142002/209211 co-relation queries the response was YES. Maximal size of possible extension queue 2693. Compared 342729 event pairs, 879 based on Foata normal form. 1769/33921 useless extension candidates. Maximal degree in co-relation 136148. Up to 10090 conditions per place. [2022-11-02 20:41:52,292 INFO L137 encePairwiseOnDemand]: 126/137 looper letters, 122 selfloop transitions, 36 changer transitions 54/340 dead transitions. [2022-11-02 20:41:52,292 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 340 transitions, 3110 flow [2022-11-02 20:41:52,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:41:52,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:41:52,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1576 transitions. [2022-11-02 20:41:52,297 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8848961257720381 [2022-11-02 20:41:52,297 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1576 transitions. [2022-11-02 20:41:52,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1576 transitions. [2022-11-02 20:41:52,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:41:52,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1576 transitions. [2022-11-02 20:41:52,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 121.23076923076923) internal successors, (1576), 13 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:52,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:52,307 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 137.0) internal successors, (1918), 14 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:52,308 INFO L175 Difference]: Start difference. First operand has 182 places, 179 transitions, 1182 flow. Second operand 13 states and 1576 transitions. [2022-11-02 20:41:52,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 340 transitions, 3110 flow [2022-11-02 20:41:53,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 340 transitions, 3084 flow, removed 13 selfloop flow, removed 0 redundant places. [2022-11-02 20:41:53,161 INFO L231 Difference]: Finished difference. Result has 200 places, 191 transitions, 1352 flow [2022-11-02 20:41:53,162 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1156, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1352, PETRI_PLACES=200, PETRI_TRANSITIONS=191} [2022-11-02 20:41:53,163 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 56 predicate places. [2022-11-02 20:41:53,163 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 191 transitions, 1352 flow [2022-11-02 20:41:53,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 114.14285714285714) internal successors, (799), 7 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:53,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:41:53,164 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:41:53,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:41:53,164 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)] === [2022-11-02 20:41:53,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:41:53,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1565842060, now seen corresponding path program 1 times [2022-11-02 20:41:53,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:41:53,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544616754] [2022-11-02 20:41:53,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:41:53,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:41:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:41:53,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:41:53,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:41:53,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544616754] [2022-11-02 20:41:53,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544616754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:41:53,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:41:53,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:41:53,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968885878] [2022-11-02 20:41:53,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:41:53,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:41:53,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:41:53,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:41:53,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:41:53,769 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 137 [2022-11-02 20:41:53,770 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 191 transitions, 1352 flow. Second operand has 8 states, 8 states have (on average 114.125) internal successors, (913), 8 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:41:53,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:41:53,771 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 137 [2022-11-02 20:41:53,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:42:03,702 INFO L130 PetriNetUnfolder]: 17098/32544 cut-off events. [2022-11-02 20:42:03,702 INFO L131 PetriNetUnfolder]: For 203157/253555 co-relation queries the response was YES. [2022-11-02 20:42:04,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155400 conditions, 32544 events. 17098/32544 cut-off events. For 203157/253555 co-relation queries the response was YES. Maximal size of possible extension queue 2650. Compared 340181 event pairs, 730 based on Foata normal form. 1664/32388 useless extension candidates. Maximal degree in co-relation 155280. Up to 9479 conditions per place. [2022-11-02 20:42:04,066 INFO L137 encePairwiseOnDemand]: 126/137 looper letters, 119 selfloop transitions, 56 changer transitions 51/343 dead transitions. [2022-11-02 20:42:04,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 343 transitions, 3264 flow [2022-11-02 20:42:04,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 20:42:04,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-02 20:42:04,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1942 transitions. [2022-11-02 20:42:04,072 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8859489051094891 [2022-11-02 20:42:04,072 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1942 transitions. [2022-11-02 20:42:04,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1942 transitions. [2022-11-02 20:42:04,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:42:04,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1942 transitions. [2022-11-02 20:42:04,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 121.375) internal successors, (1942), 16 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:04,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 137.0) internal successors, (2329), 17 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:04,086 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 137.0) internal successors, (2329), 17 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:04,087 INFO L175 Difference]: Start difference. First operand has 200 places, 191 transitions, 1352 flow. Second operand 16 states and 1942 transitions. [2022-11-02 20:42:04,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 343 transitions, 3264 flow [2022-11-02 20:42:14,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 343 transitions, 3147 flow, removed 46 selfloop flow, removed 8 redundant places. [2022-11-02 20:42:14,025 INFO L231 Difference]: Finished difference. Result has 208 places, 206 transitions, 1573 flow [2022-11-02 20:42:14,025 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=1243, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1573, PETRI_PLACES=208, PETRI_TRANSITIONS=206} [2022-11-02 20:42:14,026 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 64 predicate places. [2022-11-02 20:42:14,026 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 206 transitions, 1573 flow [2022-11-02 20:42:14,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 114.125) internal successors, (913), 8 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:14,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:42:14,027 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:14,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:42:14,028 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)] === [2022-11-02 20:42:14,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:14,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1623753292, now seen corresponding path program 1 times [2022-11-02 20:42:14,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:42:14,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296271860] [2022-11-02 20:42:14,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:14,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:42:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:14,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:14,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:42:14,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296271860] [2022-11-02 20:42:14,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296271860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:14,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:14,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-02 20:42:14,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727452687] [2022-11-02 20:42:14,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:14,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:14,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:42:14,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:14,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:14,476 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 137 [2022-11-02 20:42:14,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 206 transitions, 1573 flow. Second operand has 9 states, 9 states have (on average 114.11111111111111) internal successors, (1027), 9 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:42:14,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:42:14,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 137 [2022-11-02 20:42:14,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand