./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/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_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/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_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/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 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 --- 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 20:52:02,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:52:02,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:52:02,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:52:02,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:52:02,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:52:02,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:52:02,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:52:02,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:52:02,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:52:02,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:52:02,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:52:02,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:52:02,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:52:02,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:52:02,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:52:02,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:52:02,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:52:02,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:52:02,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:52:02,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:52:02,735 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:52:02,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:52:02,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:52:02,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:52:02,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:52:02,751 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:52:02,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:52:02,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:52:02,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:52:02,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:52:02,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:52:02,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:52:02,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:52:02,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:52:02,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:52:02,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:52:02,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:52:02,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:52:02,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:52:02,765 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:52:02,766 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:52:02,794 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:52:02,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:52:02,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:52:02,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:52:02,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:52:02,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:52:02,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:52:02,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:52:02,797 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:52:02,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:52:02,798 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:52:02,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:52:02,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:52:02,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:52:02,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:52:02,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:52:02,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:52:02,799 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:52:02,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:52:02,799 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:52:02,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:52:02,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:52:02,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:52:02,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:52:02,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:52:02,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:52:02,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:52:02,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:52:02,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:52:02,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:52:02,801 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:52:02,802 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:52:02,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:52:02,802 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_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 [2022-11-02 20:52:03,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:52:03,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:52:03,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:52:03,090 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:52:03,091 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:52:03,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2022-11-02 20:52:03,183 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/bin/uautomizer-Dbtcem3rbc/data/cc924baae/5252952098ba4b6abd35d0793798bc81/FLAG006fabdb7 [2022-11-02 20:52:03,701 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:52:03,702 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2022-11-02 20:52:03,711 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/bin/uautomizer-Dbtcem3rbc/data/cc924baae/5252952098ba4b6abd35d0793798bc81/FLAG006fabdb7 [2022-11-02 20:52:04,049 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/bin/uautomizer-Dbtcem3rbc/data/cc924baae/5252952098ba4b6abd35d0793798bc81 [2022-11-02 20:52:04,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:52:04,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:52:04,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:52:04,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:52:04,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:52:04,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:52:04" (1/1) ... [2022-11-02 20:52:04,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c9a376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:04, skipping insertion in model container [2022-11-02 20:52:04,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:52:04" (1/1) ... [2022-11-02 20:52:04,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:52:04,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:52:04,347 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_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2022-11-02 20:52:04,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:52:04,360 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:52:04,395 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_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2022-11-02 20:52:04,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:52:04,411 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:52:04,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:04 WrapperNode [2022-11-02 20:52:04,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:52:04,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:52:04,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:52:04,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:52:04,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:04" (1/1) ... [2022-11-02 20:52:04,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:04" (1/1) ... [2022-11-02 20:52:04,461 INFO L138 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 253 [2022-11-02 20:52:04,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:52:04,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:52:04,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:52:04,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:52:04,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:04" (1/1) ... [2022-11-02 20:52:04,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:04" (1/1) ... [2022-11-02 20:52:04,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:04" (1/1) ... [2022-11-02 20:52:04,478 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:04" (1/1) ... [2022-11-02 20:52:04,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:04" (1/1) ... [2022-11-02 20:52:04,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:04" (1/1) ... [2022-11-02 20:52:04,490 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:04" (1/1) ... [2022-11-02 20:52:04,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:04" (1/1) ... [2022-11-02 20:52:04,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:52:04,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:52:04,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:52:04,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:52:04,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:04" (1/1) ... [2022-11-02 20:52:04,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:52:04,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:52:04,539 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:52:04,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad6414e0-c41f-4caa-b9d1-7c9f3e5a05f0/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:52:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:52:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:52:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:52:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:52:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:52:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:52:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:52:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:52:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 20:52:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 20:52:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-02 20:52:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-02 20:52:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:52:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-02 20:52:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-02 20:52:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-02 20:52:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-02 20:52:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:52:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:52:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:52:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:52:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:52:04,599 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 20:52:04,813 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:52:04,815 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:52:05,283 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:52:05,407 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:52:05,408 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:52:05,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:05 BoogieIcfgContainer [2022-11-02 20:52:05,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:52:05,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:52:05,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:52:05,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:52:05,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:52:04" (1/3) ... [2022-11-02 20:52:05,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1187a038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:52:05, skipping insertion in model container [2022-11-02 20:52:05,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:04" (2/3) ... [2022-11-02 20:52:05,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1187a038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:52:05, skipping insertion in model container [2022-11-02 20:52:05,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:52:05" (3/3) ... [2022-11-02 20:52:05,427 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2022-11-02 20:52:05,437 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:52:05,449 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:52:05,449 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:52:05,450 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:52:05,694 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-02 20:52:05,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 246 places, 235 transitions, 542 flow [2022-11-02 20:52:05,997 INFO L130 PetriNetUnfolder]: 8/207 cut-off events. [2022-11-02 20:52:05,999 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 20:52:06,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 207 events. 8/207 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 240 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 177. Up to 3 conditions per place. [2022-11-02 20:52:06,009 INFO L82 GeneralOperation]: Start removeDead. Operand has 246 places, 235 transitions, 542 flow [2022-11-02 20:52:06,025 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 198 transitions, 444 flow [2022-11-02 20:52:06,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:52:06,048 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;@1de32e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:52:06,048 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-02 20:52:06,151 INFO L130 PetriNetUnfolder]: 8/197 cut-off events. [2022-11-02 20:52:06,152 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 20:52:06,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:06,154 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:52:06,156 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-02 20:52:06,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:06,162 INFO L85 PathProgramCache]: Analyzing trace with hash 2027569251, now seen corresponding path program 1 times [2022-11-02 20:52:06,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:06,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654404717] [2022-11-02 20:52:06,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:06,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:06,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:07,732 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 20:52:07,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:07,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654404717] [2022-11-02 20:52:07,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654404717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:07,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:07,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:52:07,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155377029] [2022-11-02 20:52:07,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:07,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:52:07,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:07,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:52:07,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:52:07,816 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-11-02 20:52:07,827 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 198 transitions, 444 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:07,827 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:07,828 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-11-02 20:52:07,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:08,530 INFO L130 PetriNetUnfolder]: 300/1180 cut-off events. [2022-11-02 20:52:08,531 INFO L131 PetriNetUnfolder]: For 362/362 co-relation queries the response was YES. [2022-11-02 20:52:08,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2011 conditions, 1180 events. 300/1180 cut-off events. For 362/362 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6508 event pairs, 155 based on Foata normal form. 49/1100 useless extension candidates. Maximal degree in co-relation 1815. Up to 289 conditions per place. [2022-11-02 20:52:08,558 INFO L137 encePairwiseOnDemand]: 228/239 looper letters, 48 selfloop transitions, 6 changer transitions 3/221 dead transitions. [2022-11-02 20:52:08,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 221 transitions, 663 flow [2022-11-02 20:52:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:52:08,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-02 20:52:08,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1053 transitions. [2022-11-02 20:52:08,590 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8811715481171548 [2022-11-02 20:52:08,591 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1053 transitions. [2022-11-02 20:52:08,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1053 transitions. [2022-11-02 20:52:08,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:08,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1053 transitions. [2022-11-02 20:52:08,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.6) internal successors, (1053), 5 states have internal predecessors, (1053), 0 states have call successors, (0), 0 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 20:52:08,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 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 20:52:08,630 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 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 20:52:08,632 INFO L175 Difference]: Start difference. First operand has 209 places, 198 transitions, 444 flow. Second operand 5 states and 1053 transitions. [2022-11-02 20:52:08,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 221 transitions, 663 flow [2022-11-02 20:52:08,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 221 transitions, 589 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-02 20:52:08,647 INFO L231 Difference]: Finished difference. Result has 202 places, 191 transitions, 416 flow [2022-11-02 20:52:08,650 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=416, PETRI_PLACES=202, PETRI_TRANSITIONS=191} [2022-11-02 20:52:08,654 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, -7 predicate places. [2022-11-02 20:52:08,655 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 191 transitions, 416 flow [2022-11-02 20:52:08,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:08,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:08,657 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:52:08,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:52:08,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-02 20:52:08,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:08,658 INFO L85 PathProgramCache]: Analyzing trace with hash -2124591546, now seen corresponding path program 1 times [2022-11-02 20:52:08,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:08,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219680499] [2022-11-02 20:52:08,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:08,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:09,332 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 20:52:09,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:09,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219680499] [2022-11-02 20:52:09,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219680499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:09,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:09,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:52:09,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148917076] [2022-11-02 20:52:09,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:09,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:52:09,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:09,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:52:09,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:52:09,346 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-11-02 20:52:09,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 191 transitions, 416 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:09,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:09,350 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-11-02 20:52:09,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:09,813 INFO L130 PetriNetUnfolder]: 311/1247 cut-off events. [2022-11-02 20:52:09,814 INFO L131 PetriNetUnfolder]: For 153/153 co-relation queries the response was YES. [2022-11-02 20:52:09,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1923 conditions, 1247 events. 311/1247 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7355 event pairs, 127 based on Foata normal form. 11/1166 useless extension candidates. Maximal degree in co-relation 1604. Up to 327 conditions per place. [2022-11-02 20:52:09,827 INFO L137 encePairwiseOnDemand]: 232/239 looper letters, 49 selfloop transitions, 6 changer transitions 0/219 dead transitions. [2022-11-02 20:52:09,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 219 transitions, 604 flow [2022-11-02 20:52:09,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:52:09,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-02 20:52:09,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1046 transitions. [2022-11-02 20:52:09,831 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8753138075313808 [2022-11-02 20:52:09,831 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1046 transitions. [2022-11-02 20:52:09,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1046 transitions. [2022-11-02 20:52:09,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:09,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1046 transitions. [2022-11-02 20:52:09,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.2) internal successors, (1046), 5 states have internal predecessors, (1046), 0 states have call successors, (0), 0 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 20:52:09,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 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 20:52:09,840 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 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 20:52:09,840 INFO L175 Difference]: Start difference. First operand has 202 places, 191 transitions, 416 flow. Second operand 5 states and 1046 transitions. [2022-11-02 20:52:09,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 219 transitions, 604 flow [2022-11-02 20:52:09,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 219 transitions, 592 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:52:09,870 INFO L231 Difference]: Finished difference. Result has 200 places, 191 transitions, 422 flow [2022-11-02 20:52:09,871 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=422, PETRI_PLACES=200, PETRI_TRANSITIONS=191} [2022-11-02 20:52:09,872 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, -9 predicate places. [2022-11-02 20:52:09,872 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 191 transitions, 422 flow [2022-11-02 20:52:09,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:09,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:09,874 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:52:09,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:52:09,874 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-02 20:52:09,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:09,877 INFO L85 PathProgramCache]: Analyzing trace with hash 864293, now seen corresponding path program 1 times [2022-11-02 20:52:09,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:09,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31684245] [2022-11-02 20:52:09,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:09,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:10,472 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 20:52:10,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:10,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31684245] [2022-11-02 20:52:10,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31684245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:10,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:10,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:52:10,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753610402] [2022-11-02 20:52:10,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:10,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:52:10,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:10,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:52:10,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:52:10,484 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-11-02 20:52:10,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 191 transitions, 422 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:10,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:10,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-11-02 20:52:10,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:10,930 INFO L130 PetriNetUnfolder]: 264/1019 cut-off events. [2022-11-02 20:52:10,931 INFO L131 PetriNetUnfolder]: For 176/176 co-relation queries the response was YES. [2022-11-02 20:52:10,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 1019 events. 264/1019 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5632 event pairs, 109 based on Foata normal form. 20/941 useless extension candidates. Maximal degree in co-relation 1364. Up to 258 conditions per place. [2022-11-02 20:52:10,944 INFO L137 encePairwiseOnDemand]: 232/239 looper letters, 48 selfloop transitions, 6 changer transitions 1/218 dead transitions. [2022-11-02 20:52:10,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 218 transitions, 619 flow [2022-11-02 20:52:10,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:52:10,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-02 20:52:10,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1046 transitions. [2022-11-02 20:52:10,949 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8753138075313808 [2022-11-02 20:52:10,949 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1046 transitions. [2022-11-02 20:52:10,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1046 transitions. [2022-11-02 20:52:10,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:10,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1046 transitions. [2022-11-02 20:52:10,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.2) internal successors, (1046), 5 states have internal predecessors, (1046), 0 states have call successors, (0), 0 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 20:52:10,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 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 20:52:10,959 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 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 20:52:10,959 INFO L175 Difference]: Start difference. First operand has 200 places, 191 transitions, 422 flow. Second operand 5 states and 1046 transitions. [2022-11-02 20:52:10,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 218 transitions, 619 flow [2022-11-02 20:52:10,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 218 transitions, 607 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:52:10,971 INFO L231 Difference]: Finished difference. Result has 201 places, 190 transitions, 426 flow [2022-11-02 20:52:10,972 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=426, PETRI_PLACES=201, PETRI_TRANSITIONS=190} [2022-11-02 20:52:10,975 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, -8 predicate places. [2022-11-02 20:52:10,975 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 190 transitions, 426 flow [2022-11-02 20:52:10,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:10,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:10,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:52:10,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:52:10,977 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-02 20:52:10,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:10,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1823949991, now seen corresponding path program 1 times [2022-11-02 20:52:10,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:10,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215732168] [2022-11-02 20:52:10,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:10,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:11,685 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 20:52:11,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:11,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215732168] [2022-11-02 20:52:11,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215732168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:11,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:11,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:52:11,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768355891] [2022-11-02 20:52:11,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:11,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:52:11,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:11,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:52:11,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:52:11,695 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-11-02 20:52:11,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 190 transitions, 426 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:11,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:11,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-11-02 20:52:11,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:12,088 INFO L130 PetriNetUnfolder]: 274/1058 cut-off events. [2022-11-02 20:52:12,088 INFO L131 PetriNetUnfolder]: For 205/211 co-relation queries the response was YES. [2022-11-02 20:52:12,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1727 conditions, 1058 events. 274/1058 cut-off events. For 205/211 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5930 event pairs, 114 based on Foata normal form. 16/977 useless extension candidates. Maximal degree in co-relation 756. Up to 292 conditions per place. [2022-11-02 20:52:12,099 INFO L137 encePairwiseOnDemand]: 232/239 looper letters, 49 selfloop transitions, 6 changer transitions 0/218 dead transitions. [2022-11-02 20:52:12,099 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 218 transitions, 626 flow [2022-11-02 20:52:12,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:52:12,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-02 20:52:12,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1046 transitions. [2022-11-02 20:52:12,103 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8753138075313808 [2022-11-02 20:52:12,103 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1046 transitions. [2022-11-02 20:52:12,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1046 transitions. [2022-11-02 20:52:12,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:12,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1046 transitions. [2022-11-02 20:52:12,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.2) internal successors, (1046), 5 states have internal predecessors, (1046), 0 states have call successors, (0), 0 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 20:52:12,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 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 20:52:12,112 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 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 20:52:12,112 INFO L175 Difference]: Start difference. First operand has 201 places, 190 transitions, 426 flow. Second operand 5 states and 1046 transitions. [2022-11-02 20:52:12,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 218 transitions, 626 flow [2022-11-02 20:52:12,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 218 transitions, 614 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:52:12,118 INFO L231 Difference]: Finished difference. Result has 201 places, 190 transitions, 432 flow [2022-11-02 20:52:12,119 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=432, PETRI_PLACES=201, PETRI_TRANSITIONS=190} [2022-11-02 20:52:12,120 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, -8 predicate places. [2022-11-02 20:52:12,120 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 190 transitions, 432 flow [2022-11-02 20:52:12,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:12,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:12,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:52:12,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:52:12,122 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-02 20:52:12,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:12,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1201062752, now seen corresponding path program 1 times [2022-11-02 20:52:12,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:12,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127908908] [2022-11-02 20:52:12,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:12,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:14,152 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 20:52:14,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:14,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127908908] [2022-11-02 20:52:14,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127908908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:14,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:14,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-02 20:52:14,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487787677] [2022-11-02 20:52:14,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:14,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-02 20:52:14,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:14,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-02 20:52:14,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:52:14,162 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-11-02 20:52:14,167 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 190 transitions, 432 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 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 20:52:14,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:14,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-11-02 20:52:14,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:18,596 INFO L130 PetriNetUnfolder]: 3471/7068 cut-off events. [2022-11-02 20:52:18,596 INFO L131 PetriNetUnfolder]: For 1355/1355 co-relation queries the response was YES. [2022-11-02 20:52:18,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13670 conditions, 7068 events. 3471/7068 cut-off events. For 1355/1355 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 51039 event pairs, 818 based on Foata normal form. 1/6485 useless extension candidates. Maximal degree in co-relation 12572. Up to 2858 conditions per place. [2022-11-02 20:52:18,688 INFO L137 encePairwiseOnDemand]: 216/239 looper letters, 214 selfloop transitions, 59 changer transitions 23/425 dead transitions. [2022-11-02 20:52:18,689 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 425 transitions, 1654 flow [2022-11-02 20:52:18,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-02 20:52:18,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-02 20:52:18,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 4861 transitions. [2022-11-02 20:52:18,703 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7263897190675433 [2022-11-02 20:52:18,703 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 4861 transitions. [2022-11-02 20:52:18,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 4861 transitions. [2022-11-02 20:52:18,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:18,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 4861 transitions. [2022-11-02 20:52:18,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 173.60714285714286) internal successors, (4861), 28 states have internal predecessors, (4861), 0 states have call successors, (0), 0 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 20:52:18,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 239.0) internal successors, (6931), 29 states have internal predecessors, (6931), 0 states have call successors, (0), 0 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 20:52:18,738 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 239.0) internal successors, (6931), 29 states have internal predecessors, (6931), 0 states have call successors, (0), 0 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 20:52:18,739 INFO L175 Difference]: Start difference. First operand has 201 places, 190 transitions, 432 flow. Second operand 28 states and 4861 transitions. [2022-11-02 20:52:18,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 425 transitions, 1654 flow [2022-11-02 20:52:18,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 425 transitions, 1618 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:52:18,754 INFO L231 Difference]: Finished difference. Result has 238 places, 248 transitions, 750 flow [2022-11-02 20:52:18,755 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=750, PETRI_PLACES=238, PETRI_TRANSITIONS=248} [2022-11-02 20:52:18,756 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 29 predicate places. [2022-11-02 20:52:18,756 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 248 transitions, 750 flow [2022-11-02 20:52:18,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 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 20:52:18,758 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:18,759 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:52:18,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:52:18,759 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-02 20:52:18,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:18,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1878004040, now seen corresponding path program 1 times [2022-11-02 20:52:18,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:18,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642734936] [2022-11-02 20:52:18,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:18,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:21,331 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 20:52:21,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:21,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642734936] [2022-11-02 20:52:21,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642734936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:21,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:21,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-11-02 20:52:21,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107314879] [2022-11-02 20:52:21,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:21,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-02 20:52:21,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:21,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-02 20:52:21,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2022-11-02 20:52:21,340 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 239 [2022-11-02 20:52:21,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 248 transitions, 750 flow. Second operand has 30 states, 30 states have (on average 157.1) internal successors, (4713), 30 states have internal predecessors, (4713), 0 states have call successors, (0), 0 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 20:52:21,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:21,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 239 [2022-11-02 20:52:21,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:29,642 INFO L130 PetriNetUnfolder]: 5128/10677 cut-off events. [2022-11-02 20:52:29,643 INFO L131 PetriNetUnfolder]: For 5403/5403 co-relation queries the response was YES. [2022-11-02 20:52:29,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25245 conditions, 10677 events. 5128/10677 cut-off events. For 5403/5403 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 83574 event pairs, 802 based on Foata normal form. 1/9858 useless extension candidates. Maximal degree in co-relation 25209. Up to 3439 conditions per place. [2022-11-02 20:52:29,801 INFO L137 encePairwiseOnDemand]: 210/239 looper letters, 379 selfloop transitions, 167 changer transitions 22/691 dead transitions. [2022-11-02 20:52:29,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 691 transitions, 3555 flow [2022-11-02 20:52:29,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-11-02 20:52:29,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2022-11-02 20:52:29,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 9021 transitions. [2022-11-02 20:52:29,822 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6862685431723089 [2022-11-02 20:52:29,822 INFO L72 ComplementDD]: Start complementDD. Operand 55 states and 9021 transitions. [2022-11-02 20:52:29,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 9021 transitions. [2022-11-02 20:52:29,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:29,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 55 states and 9021 transitions. [2022-11-02 20:52:29,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 56 states, 55 states have (on average 164.01818181818183) internal successors, (9021), 55 states have internal predecessors, (9021), 0 states have call successors, (0), 0 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 20:52:29,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 56 states, 56 states have (on average 239.0) internal successors, (13384), 56 states have internal predecessors, (13384), 0 states have call successors, (0), 0 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 20:52:29,948 INFO L81 ComplementDD]: Finished complementDD. Result has 56 states, 56 states have (on average 239.0) internal successors, (13384), 56 states have internal predecessors, (13384), 0 states have call successors, (0), 0 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 20:52:29,948 INFO L175 Difference]: Start difference. First operand has 238 places, 248 transitions, 750 flow. Second operand 55 states and 9021 transitions. [2022-11-02 20:52:29,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 691 transitions, 3555 flow [2022-11-02 20:52:29,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 691 transitions, 3529 flow, removed 11 selfloop flow, removed 5 redundant places. [2022-11-02 20:52:29,996 INFO L231 Difference]: Finished difference. Result has 303 places, 406 transitions, 1993 flow [2022-11-02 20:52:29,997 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=55, PETRI_FLOW=1993, PETRI_PLACES=303, PETRI_TRANSITIONS=406} [2022-11-02 20:52:29,998 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 94 predicate places. [2022-11-02 20:52:29,998 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 406 transitions, 1993 flow [2022-11-02 20:52:30,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 157.1) internal successors, (4713), 30 states have internal predecessors, (4713), 0 states have call successors, (0), 0 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 20:52:30,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:30,001 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:52:30,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:52:30,001 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-02 20:52:30,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:30,002 INFO L85 PathProgramCache]: Analyzing trace with hash 456110612, now seen corresponding path program 2 times [2022-11-02 20:52:30,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:30,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576397298] [2022-11-02 20:52:30,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:30,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:32,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:32,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:32,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576397298] [2022-11-02 20:52:32,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576397298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:32,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:32,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-11-02 20:52:32,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198028578] [2022-11-02 20:52:32,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:32,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-02 20:52:32,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:32,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-02 20:52:32,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=769, Unknown=0, NotChecked=0, Total=870 [2022-11-02 20:52:32,303 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 239 [2022-11-02 20:52:32,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 406 transitions, 1993 flow. Second operand has 30 states, 30 states have (on average 157.1) internal successors, (4713), 30 states have internal predecessors, (4713), 0 states have call successors, (0), 0 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 20:52:32,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:32,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 239 [2022-11-02 20:52:32,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:42,390 INFO L130 PetriNetUnfolder]: 6541/13287 cut-off events. [2022-11-02 20:52:42,391 INFO L131 PetriNetUnfolder]: For 13382/13382 co-relation queries the response was YES. [2022-11-02 20:52:42,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37715 conditions, 13287 events. 6541/13287 cut-off events. For 13382/13382 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 106063 event pairs, 1114 based on Foata normal form. 1/12295 useless extension candidates. Maximal degree in co-relation 37651. Up to 4214 conditions per place. [2022-11-02 20:52:42,597 INFO L137 encePairwiseOnDemand]: 210/239 looper letters, 513 selfloop transitions, 311 changer transitions 22/969 dead transitions. [2022-11-02 20:52:42,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 969 transitions, 6550 flow [2022-11-02 20:52:42,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-11-02 20:52:42,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2022-11-02 20:52:42,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 12235 transitions. [2022-11-02 20:52:42,616 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6825662482566248 [2022-11-02 20:52:42,616 INFO L72 ComplementDD]: Start complementDD. Operand 75 states and 12235 transitions. [2022-11-02 20:52:42,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 75 states and 12235 transitions. [2022-11-02 20:52:42,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:42,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 75 states and 12235 transitions. [2022-11-02 20:52:42,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 76 states, 75 states have (on average 163.13333333333333) internal successors, (12235), 75 states have internal predecessors, (12235), 0 states have call successors, (0), 0 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 20:52:42,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 76 states, 76 states have (on average 239.0) internal successors, (18164), 76 states have internal predecessors, (18164), 0 states have call successors, (0), 0 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 20:52:42,676 INFO L81 ComplementDD]: Finished complementDD. Result has 76 states, 76 states have (on average 239.0) internal successors, (18164), 76 states have internal predecessors, (18164), 0 states have call successors, (0), 0 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 20:52:42,677 INFO L175 Difference]: Start difference. First operand has 303 places, 406 transitions, 1993 flow. Second operand 75 states and 12235 transitions. [2022-11-02 20:52:42,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 969 transitions, 6550 flow [2022-11-02 20:52:43,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 969 transitions, 6166 flow, removed 190 selfloop flow, removed 5 redundant places. [2022-11-02 20:52:43,225 INFO L231 Difference]: Finished difference. Result has 405 places, 640 transitions, 4195 flow [2022-11-02 20:52:43,226 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=1771, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=75, PETRI_FLOW=4195, PETRI_PLACES=405, PETRI_TRANSITIONS=640} [2022-11-02 20:52:43,227 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 196 predicate places. [2022-11-02 20:52:43,228 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 640 transitions, 4195 flow [2022-11-02 20:52:43,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 157.1) internal successors, (4713), 30 states have internal predecessors, (4713), 0 states have call successors, (0), 0 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 20:52:43,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:43,230 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:52:43,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:52:43,230 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-02 20:52:43,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:43,231 INFO L85 PathProgramCache]: Analyzing trace with hash -597755031, now seen corresponding path program 2 times [2022-11-02 20:52:43,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:43,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714113329] [2022-11-02 20:52:43,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:43,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:45,475 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 20:52:45,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:45,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714113329] [2022-11-02 20:52:45,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714113329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:45,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:45,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-11-02 20:52:45,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210165803] [2022-11-02 20:52:45,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:45,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-02 20:52:45,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:45,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-02 20:52:45,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2022-11-02 20:52:45,483 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 239 [2022-11-02 20:52:45,488 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 640 transitions, 4195 flow. Second operand has 30 states, 30 states have (on average 157.1) internal successors, (4713), 30 states have internal predecessors, (4713), 0 states have call successors, (0), 0 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 20:52:45,489 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:45,489 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 239 [2022-11-02 20:52:45,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:53:01,513 INFO L130 PetriNetUnfolder]: 8551/16978 cut-off events. [2022-11-02 20:53:01,513 INFO L131 PetriNetUnfolder]: For 39046/39046 co-relation queries the response was YES. [2022-11-02 20:53:01,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57231 conditions, 16978 events. 8551/16978 cut-off events. For 39046/39046 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 137754 event pairs, 1815 based on Foata normal form. 1/15770 useless extension candidates. Maximal degree in co-relation 57122. Up to 6047 conditions per place. [2022-11-02 20:53:02,034 INFO L137 encePairwiseOnDemand]: 210/239 looper letters, 730 selfloop transitions, 552 changer transitions 22/1427 dead transitions. [2022-11-02 20:53:02,034 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 1427 transitions, 12376 flow [2022-11-02 20:53:02,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-11-02 20:53:02,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2022-11-02 20:53:02,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 18637 transitions. [2022-11-02 20:53:02,246 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6780789521557213 [2022-11-02 20:53:02,247 INFO L72 ComplementDD]: Start complementDD. Operand 115 states and 18637 transitions. [2022-11-02 20:53:02,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 18637 transitions. [2022-11-02 20:53:02,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:53:02,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 115 states and 18637 transitions. [2022-11-02 20:53:02,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 116 states, 115 states have (on average 162.0608695652174) internal successors, (18637), 115 states have internal predecessors, (18637), 0 states have call successors, (0), 0 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 20:53:02,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 116 states, 116 states have (on average 239.0) internal successors, (27724), 116 states have internal predecessors, (27724), 0 states have call successors, (0), 0 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 20:53:02,360 INFO L81 ComplementDD]: Finished complementDD. Result has 116 states, 116 states have (on average 239.0) internal successors, (27724), 116 states have internal predecessors, (27724), 0 states have call successors, (0), 0 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 20:53:02,360 INFO L175 Difference]: Start difference. First operand has 405 places, 640 transitions, 4195 flow. Second operand 115 states and 18637 transitions. [2022-11-02 20:53:02,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 1427 transitions, 12376 flow [2022-11-02 20:53:02,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 1427 transitions, 11812 flow, removed 280 selfloop flow, removed 5 redundant places. [2022-11-02 20:53:02,846 INFO L231 Difference]: Finished difference. Result has 550 places, 1052 transitions, 9053 flow [2022-11-02 20:53:02,848 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=3749, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=174, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=115, PETRI_FLOW=9053, PETRI_PLACES=550, PETRI_TRANSITIONS=1052} [2022-11-02 20:53:02,848 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 341 predicate places. [2022-11-02 20:53:02,848 INFO L495 AbstractCegarLoop]: Abstraction has has 550 places, 1052 transitions, 9053 flow [2022-11-02 20:53:02,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 157.1) internal successors, (4713), 30 states have internal predecessors, (4713), 0 states have call successors, (0), 0 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 20:53:02,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:53:02,850 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:53:02,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:53:02,851 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-02 20:53:02,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:02,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1168828086, now seen corresponding path program 1 times [2022-11-02 20:53:02,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:02,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176133306] [2022-11-02 20:53:02,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:02,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:04,181 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 20:53:04,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:04,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176133306] [2022-11-02 20:53:04,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176133306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:04,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:04,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-02 20:53:04,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004290094] [2022-11-02 20:53:04,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:04,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-02 20:53:04,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:04,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-02 20:53:04,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:53:04,186 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-11-02 20:53:04,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 1052 transitions, 9053 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 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 20:53:04,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:53:04,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-11-02 20:53:04,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:53:15,529 INFO L130 PetriNetUnfolder]: 9645/18763 cut-off events. [2022-11-02 20:53:15,530 INFO L131 PetriNetUnfolder]: For 97429/97477 co-relation queries the response was YES. [2022-11-02 20:53:15,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75518 conditions, 18763 events. 9645/18763 cut-off events. For 97429/97477 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 154307 event pairs, 1502 based on Foata normal form. 21/17411 useless extension candidates. Maximal degree in co-relation 75361. Up to 7774 conditions per place. [2022-11-02 20:53:16,094 INFO L137 encePairwiseOnDemand]: 216/239 looper letters, 877 selfloop transitions, 531 changer transitions 22/1576 dead transitions. [2022-11-02 20:53:16,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 599 places, 1576 transitions, 16591 flow [2022-11-02 20:53:16,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-11-02 20:53:16,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2022-11-02 20:53:16,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 9282 transitions. [2022-11-02 20:53:16,108 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7192003719200372 [2022-11-02 20:53:16,109 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 9282 transitions. [2022-11-02 20:53:16,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 9282 transitions. [2022-11-02 20:53:16,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:53:16,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 9282 transitions. [2022-11-02 20:53:16,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 171.88888888888889) internal successors, (9282), 54 states have internal predecessors, (9282), 0 states have call successors, (0), 0 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 20:53:16,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 239.0) internal successors, (13145), 55 states have internal predecessors, (13145), 0 states have call successors, (0), 0 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 20:53:16,152 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 239.0) internal successors, (13145), 55 states have internal predecessors, (13145), 0 states have call successors, (0), 0 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 20:53:16,152 INFO L175 Difference]: Start difference. First operand has 550 places, 1052 transitions, 9053 flow. Second operand 54 states and 9282 transitions. [2022-11-02 20:53:16,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 599 places, 1576 transitions, 16591 flow [2022-11-02 20:53:18,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 593 places, 1576 transitions, 14540 flow, removed 954 selfloop flow, removed 6 redundant places. [2022-11-02 20:53:18,351 INFO L231 Difference]: Finished difference. Result has 605 places, 1301 transitions, 11429 flow [2022-11-02 20:53:18,353 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=7234, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=309, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=720, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=11429, PETRI_PLACES=605, PETRI_TRANSITIONS=1301} [2022-11-02 20:53:18,354 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 396 predicate places. [2022-11-02 20:53:18,354 INFO L495 AbstractCegarLoop]: Abstraction has has 605 places, 1301 transitions, 11429 flow [2022-11-02 20:53:18,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 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 20:53:18,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:53:18,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:53:18,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:53:18,356 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-02 20:53:18,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:18,357 INFO L85 PathProgramCache]: Analyzing trace with hash 238776196, now seen corresponding path program 2 times [2022-11-02 20:53:18,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:18,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297540130] [2022-11-02 20:53:18,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:18,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:19,922 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 20:53:19,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:19,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297540130] [2022-11-02 20:53:19,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297540130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:19,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:19,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-02 20:53:19,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567524592] [2022-11-02 20:53:19,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:19,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-02 20:53:19,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:19,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-02 20:53:19,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:53:19,931 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-11-02 20:53:19,936 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 605 places, 1301 transitions, 11429 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 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 20:53:19,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:53:19,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-11-02 20:53:19,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:53:35,855 INFO L130 PetriNetUnfolder]: 11820/22961 cut-off events. [2022-11-02 20:53:35,856 INFO L131 PetriNetUnfolder]: For 144188/144236 co-relation queries the response was YES. [2022-11-02 20:53:36,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95257 conditions, 22961 events. 11820/22961 cut-off events. For 144188/144236 co-relation queries the response was YES. Maximal size of possible extension queue 611. Compared 193347 event pairs, 1757 based on Foata normal form. 12/21316 useless extension candidates. Maximal degree in co-relation 95081. Up to 8654 conditions per place. [2022-11-02 20:53:36,936 INFO L137 encePairwiseOnDemand]: 216/239 looper letters, 1100 selfloop transitions, 839 changer transitions 23/2108 dead transitions. [2022-11-02 20:53:36,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 688 places, 2108 transitions, 23464 flow [2022-11-02 20:53:36,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-11-02 20:53:36,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2022-11-02 20:53:36,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 15013 transitions. [2022-11-02 20:53:36,967 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7138170406998859 [2022-11-02 20:53:36,967 INFO L72 ComplementDD]: Start complementDD. Operand 88 states and 15013 transitions. [2022-11-02 20:53:36,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 15013 transitions. [2022-11-02 20:53:36,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:53:36,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 88 states and 15013 transitions. [2022-11-02 20:53:37,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 89 states, 88 states have (on average 170.60227272727272) internal successors, (15013), 88 states have internal predecessors, (15013), 0 states have call successors, (0), 0 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 20:53:37,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 89 states, 89 states have (on average 239.0) internal successors, (21271), 89 states have internal predecessors, (21271), 0 states have call successors, (0), 0 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 20:53:37,044 INFO L81 ComplementDD]: Finished complementDD. Result has 89 states, 89 states have (on average 239.0) internal successors, (21271), 89 states have internal predecessors, (21271), 0 states have call successors, (0), 0 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 20:53:37,044 INFO L175 Difference]: Start difference. First operand has 605 places, 1301 transitions, 11429 flow. Second operand 88 states and 15013 transitions. [2022-11-02 20:53:37,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 688 places, 2108 transitions, 23464 flow [2022-11-02 20:53:39,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 681 places, 2108 transitions, 21994 flow, removed 566 selfloop flow, removed 7 redundant places. [2022-11-02 20:53:39,660 INFO L231 Difference]: Finished difference. Result has 716 places, 1764 transitions, 18803 flow [2022-11-02 20:53:39,662 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=10326, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=405, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=841, PETRI_DIFFERENCE_SUBTRAHEND_STATES=88, PETRI_FLOW=18803, PETRI_PLACES=716, PETRI_TRANSITIONS=1764} [2022-11-02 20:53:39,662 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 507 predicate places. [2022-11-02 20:53:39,663 INFO L495 AbstractCegarLoop]: Abstraction has has 716 places, 1764 transitions, 18803 flow [2022-11-02 20:53:39,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 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 20:53:39,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:53:39,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:53:39,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:53:39,665 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-02 20:53:39,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:39,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1411147566, now seen corresponding path program 3 times [2022-11-02 20:53:39,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:39,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608969675] [2022-11-02 20:53:39,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:39,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:41,313 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 20:53:41,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:41,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608969675] [2022-11-02 20:53:41,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608969675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:41,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:41,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-02 20:53:41,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957290312] [2022-11-02 20:53:41,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:41,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-02 20:53:41,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:41,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-02 20:53:41,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=501, Unknown=0, NotChecked=0, Total=552 [2022-11-02 20:53:41,322 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-11-02 20:53:41,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 716 places, 1764 transitions, 18803 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 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 20:53:41,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:53:41,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-11-02 20:53:41,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:53:59,786 INFO L130 PetriNetUnfolder]: 13048/25257 cut-off events. [2022-11-02 20:53:59,786 INFO L131 PetriNetUnfolder]: For 227899/228003 co-relation queries the response was YES. [2022-11-02 20:54:00,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114686 conditions, 25257 events. 13048/25257 cut-off events. For 227899/228003 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 215771 event pairs, 2788 based on Foata normal form. 20/23414 useless extension candidates. Maximal degree in co-relation 114467. Up to 10521 conditions per place. [2022-11-02 20:54:01,124 INFO L137 encePairwiseOnDemand]: 216/239 looper letters, 1138 selfloop transitions, 968 changer transitions 22/2274 dead transitions. [2022-11-02 20:54:01,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 775 places, 2274 transitions, 28744 flow [2022-11-02 20:54:01,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-02 20:54:01,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2022-11-02 20:54:01,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 10911 transitions. [2022-11-02 20:54:01,139 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7133237447698745 [2022-11-02 20:54:01,140 INFO L72 ComplementDD]: Start complementDD. Operand 64 states and 10911 transitions. [2022-11-02 20:54:01,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 10911 transitions. [2022-11-02 20:54:01,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:01,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 64 states and 10911 transitions. [2022-11-02 20:54:01,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 65 states, 64 states have (on average 170.484375) internal successors, (10911), 64 states have internal predecessors, (10911), 0 states have call successors, (0), 0 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 20:54:01,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 65 states, 65 states have (on average 239.0) internal successors, (15535), 65 states have internal predecessors, (15535), 0 states have call successors, (0), 0 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 20:54:01,178 INFO L81 ComplementDD]: Finished complementDD. Result has 65 states, 65 states have (on average 239.0) internal successors, (15535), 65 states have internal predecessors, (15535), 0 states have call successors, (0), 0 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 20:54:01,178 INFO L175 Difference]: Start difference. First operand has 716 places, 1764 transitions, 18803 flow. Second operand 64 states and 10911 transitions. [2022-11-02 20:54:01,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 775 places, 2274 transitions, 28744 flow [2022-11-02 20:54:05,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 770 places, 2274 transitions, 26868 flow, removed 936 selfloop flow, removed 5 redundant places. [2022-11-02 20:54:05,495 INFO L231 Difference]: Finished difference. Result has 804 places, 2031 transitions, 24185 flow [2022-11-02 20:54:05,497 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=17037, PETRI_DIFFERENCE_MINUEND_PLACES=707, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1764, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=719, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=993, PETRI_DIFFERENCE_SUBTRAHEND_STATES=64, PETRI_FLOW=24185, PETRI_PLACES=804, PETRI_TRANSITIONS=2031} [2022-11-02 20:54:05,498 INFO L287 CegarLoopForPetriNet]: 209 programPoint places, 595 predicate places. [2022-11-02 20:54:05,498 INFO L495 AbstractCegarLoop]: Abstraction has has 804 places, 2031 transitions, 24185 flow [2022-11-02 20:54:05,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 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 20:54:05,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:05,499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:54:05,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:54:05,500 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-02 20:54:05,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:05,501 INFO L85 PathProgramCache]: Analyzing trace with hash 419370628, now seen corresponding path program 1 times [2022-11-02 20:54:05,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:05,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612483350] [2022-11-02 20:54:05,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:05,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:08,152 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 20:54:08,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:08,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612483350] [2022-11-02 20:54:08,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612483350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:08,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:08,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-11-02 20:54:08,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435823241] [2022-11-02 20:54:08,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:08,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-02 20:54:08,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:08,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-02 20:54:08,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-11-02 20:54:08,162 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 239 [2022-11-02 20:54:08,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 804 places, 2031 transitions, 24185 flow. Second operand has 28 states, 28 states have (on average 161.14285714285714) internal successors, (4512), 28 states have internal predecessors, (4512), 0 states have call successors, (0), 0 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 20:54:08,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:08,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 239 [2022-11-02 20:54:08,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand