./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9058b83-651f-4838-b276-60219560ed7d/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9058b83-651f-4838-b276-60219560ed7d/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_d9058b83-651f-4838-b276-60219560ed7d/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9058b83-651f-4838-b276-60219560ed7d/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9058b83-651f-4838-b276-60219560ed7d/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_d9058b83-651f-4838-b276-60219560ed7d/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 b51bd5b35703bd543bead4074e6d14da7b357845ee956f8678aa2abe4dcc1210 --- 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 20:54:26,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:54:26,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:54:26,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:54:26,711 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:54:26,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:54:26,717 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:54:26,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:54:26,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:54:26,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:54:26,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:54:26,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:54:26,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:54:26,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:54:26,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:54:26,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:54:26,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:54:26,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:54:26,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:54:26,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:54:26,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:54:26,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:54:26,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:54:26,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:54:26,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:54:26,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:54:26,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:54:26,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:54:26,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:54:26,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:54:26,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:54:26,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:54:26,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:54:26,766 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:54:26,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:54:26,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:54:26,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:54:26,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:54:26,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:54:26,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:54:26,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:54:26,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9058b83-651f-4838-b276-60219560ed7d/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:54:26,805 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:54:26,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:54:26,809 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:54:26,809 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:54:26,810 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:54:26,810 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:54:26,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:54:26,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:54:26,811 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:54:26,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:54:26,813 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:54:26,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:54:26,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:54:26,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:54:26,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:54:26,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:54:26,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:54:26,814 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:54:26,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:54:26,815 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:54:26,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:54:26,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:54:26,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:54:26,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:54:26,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:54:26,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:54:26,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:54:26,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:54:26,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:54:26,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:54:26,819 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:54:26,819 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:54:26,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:54:26,820 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_d9058b83-651f-4838-b276-60219560ed7d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9058b83-651f-4838-b276-60219560ed7d/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b51bd5b35703bd543bead4074e6d14da7b357845ee956f8678aa2abe4dcc1210 [2022-11-02 20:54:27,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:54:27,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:54:27,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:54:27,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:54:27,168 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:54:27,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9058b83-651f-4838-b276-60219560ed7d/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2022-11-02 20:54:27,267 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9058b83-651f-4838-b276-60219560ed7d/bin/uautomizer-Dbtcem3rbc/data/479e13406/dc5029d53b6140e385e20e02b36b5a8c/FLAGae5ea898e [2022-11-02 20:54:27,805 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:54:27,805 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9058b83-651f-4838-b276-60219560ed7d/sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2022-11-02 20:54:27,821 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9058b83-651f-4838-b276-60219560ed7d/bin/uautomizer-Dbtcem3rbc/data/479e13406/dc5029d53b6140e385e20e02b36b5a8c/FLAGae5ea898e [2022-11-02 20:54:28,075 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9058b83-651f-4838-b276-60219560ed7d/bin/uautomizer-Dbtcem3rbc/data/479e13406/dc5029d53b6140e385e20e02b36b5a8c [2022-11-02 20:54:28,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:54:28,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:54:28,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:54:28,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:54:28,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:54:28,092 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:54:28" (1/1) ... [2022-11-02 20:54:28,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@779e4060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:28, skipping insertion in model container [2022-11-02 20:54:28,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:54:28" (1/1) ... [2022-11-02 20:54:28,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:54:28,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:54:28,349 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_d9058b83-651f-4838-b276-60219560ed7d/sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-02 20:54:28,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:54:28,624 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:54:28,642 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_d9058b83-651f-4838-b276-60219560ed7d/sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-02 20:54:28,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:54:28,775 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:54:28,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:28 WrapperNode [2022-11-02 20:54:28,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:54:28,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:54:28,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:54:28,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:54:28,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:28" (1/1) ... [2022-11-02 20:54:28,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:28" (1/1) ... [2022-11-02 20:54:28,826 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 193 [2022-11-02 20:54:28,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:54:28,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:54:28,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:54:28,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:54:28,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:28" (1/1) ... [2022-11-02 20:54:28,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:28" (1/1) ... [2022-11-02 20:54:28,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:28" (1/1) ... [2022-11-02 20:54:28,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:28" (1/1) ... [2022-11-02 20:54:28,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:28" (1/1) ... [2022-11-02 20:54:28,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:28" (1/1) ... [2022-11-02 20:54:28,857 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:28" (1/1) ... [2022-11-02 20:54:28,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:28" (1/1) ... [2022-11-02 20:54:28,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:54:28,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:54:28,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:54:28,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:54:28,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:28" (1/1) ... [2022-11-02 20:54:28,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:54:28,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9058b83-651f-4838-b276-60219560ed7d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:54:28,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9058b83-651f-4838-b276-60219560ed7d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:54:28,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9058b83-651f-4838-b276-60219560ed7d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:54:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:54:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:54:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:54:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:54:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:54:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-02 20:54:28,966 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-02 20:54:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-02 20:54:28,967 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-02 20:54:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-02 20:54:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-02 20:54:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-02 20:54:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-02 20:54:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:54:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:54:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:54:28,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:54:28,970 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 20:54:29,164 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:54:29,166 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:54:29,899 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:54:30,489 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:54:30,490 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:54:30,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:54:30 BoogieIcfgContainer [2022-11-02 20:54:30,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:54:30,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:54:30,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:54:30,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:54:30,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:54:28" (1/3) ... [2022-11-02 20:54:30,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b70fdb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:54:30, skipping insertion in model container [2022-11-02 20:54:30,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:54:28" (2/3) ... [2022-11-02 20:54:30,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b70fdb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:54:30, skipping insertion in model container [2022-11-02 20:54:30,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:54:30" (3/3) ... [2022-11-02 20:54:30,506 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_power.oepc_pso.oepc_rmo.oepc.i [2022-11-02 20:54:30,516 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:54:30,526 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:54:30,526 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 20:54:30,527 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:54:30,646 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:54:30,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 139 transitions, 298 flow [2022-11-02 20:54:30,785 INFO L130 PetriNetUnfolder]: 2/135 cut-off events. [2022-11-02 20:54:30,785 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:54:30,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 135 events. 2/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-11-02 20:54:30,791 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 139 transitions, 298 flow [2022-11-02 20:54:30,799 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 135 transitions, 282 flow [2022-11-02 20:54:30,820 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:54:30,828 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;@4723cf45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:54:30,829 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-02 20:54:30,849 INFO L130 PetriNetUnfolder]: 0/50 cut-off events. [2022-11-02 20:54:30,850 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:54:30,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:30,851 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] [2022-11-02 20:54:30,852 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:54:30,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:30,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1261973162, now seen corresponding path program 1 times [2022-11-02 20:54:30,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:30,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622314333] [2022-11-02 20:54:30,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:30,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:31,439 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 20:54:31,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:31,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622314333] [2022-11-02 20:54:31,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622314333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:31,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:31,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:54:31,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854149226] [2022-11-02 20:54:31,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:31,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:54:31,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:31,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:54:31,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:54:31,488 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 139 [2022-11-02 20:54:31,491 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:54:31,491 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:31,492 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 139 [2022-11-02 20:54:31,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:31,847 INFO L130 PetriNetUnfolder]: 162/623 cut-off events. [2022-11-02 20:54:31,847 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-02 20:54:31,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 929 conditions, 623 events. 162/623 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3467 event pairs, 132 based on Foata normal form. 46/631 useless extension candidates. Maximal degree in co-relation 871. Up to 191 conditions per place. [2022-11-02 20:54:31,887 INFO L137 encePairwiseOnDemand]: 134/139 looper letters, 18 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2022-11-02 20:54:31,888 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 139 transitions, 339 flow [2022-11-02 20:54:31,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:54:31,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:54:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2022-11-02 20:54:31,901 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9448441247002398 [2022-11-02 20:54:31,902 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2022-11-02 20:54:31,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2022-11-02 20:54:31,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:31,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2022-11-02 20:54:31,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 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 20:54:31,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 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 20:54:31,923 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 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 20:54:31,925 INFO L175 Difference]: Start difference. First operand has 146 places, 135 transitions, 282 flow. Second operand 3 states and 394 transitions. [2022-11-02 20:54:31,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 139 transitions, 339 flow [2022-11-02 20:54:31,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 139 transitions, 332 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:54:31,940 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 274 flow [2022-11-02 20:54:31,943 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2022-11-02 20:54:31,946 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2022-11-02 20:54:31,947 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 274 flow [2022-11-02 20:54:31,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:54:31,947 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:31,948 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] [2022-11-02 20:54:31,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:54:31,948 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:54:31,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:31,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1699652514, now seen corresponding path program 1 times [2022-11-02 20:54:31,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:31,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794070233] [2022-11-02 20:54:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:31,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:32,443 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 20:54:32,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:32,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794070233] [2022-11-02 20:54:32,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794070233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:32,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:32,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:54:32,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070220782] [2022-11-02 20:54:32,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:32,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:54:32,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:32,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:54:32,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:54:32,449 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2022-11-02 20:54:32,450 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 274 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 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 20:54:32,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:32,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2022-11-02 20:54:32,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:41,720 INFO L130 PetriNetUnfolder]: 19707/42016 cut-off events. [2022-11-02 20:54:41,720 INFO L131 PetriNetUnfolder]: For 1610/1610 co-relation queries the response was YES. [2022-11-02 20:54:41,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70690 conditions, 42016 events. 19707/42016 cut-off events. For 1610/1610 co-relation queries the response was YES. Maximal size of possible extension queue 1831. Compared 452697 event pairs, 4318 based on Foata normal form. 0/41093 useless extension candidates. Maximal degree in co-relation 70628. Up to 10076 conditions per place. [2022-11-02 20:54:41,984 INFO L137 encePairwiseOnDemand]: 122/139 looper letters, 37 selfloop transitions, 13 changer transitions 102/239 dead transitions. [2022-11-02 20:54:41,985 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 239 transitions, 786 flow [2022-11-02 20:54:41,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:54:41,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:54:41,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1077 transitions. [2022-11-02 20:54:41,991 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8609112709832134 [2022-11-02 20:54:41,991 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1077 transitions. [2022-11-02 20:54:41,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1077 transitions. [2022-11-02 20:54:41,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:41,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1077 transitions. [2022-11-02 20:54:41,995 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 119.66666666666667) internal successors, (1077), 9 states have internal predecessors, (1077), 0 states have call successors, (0), 0 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 20:54:42,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 0 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 20:54:42,001 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 0 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 20:54:42,001 INFO L175 Difference]: Start difference. First operand has 142 places, 131 transitions, 274 flow. Second operand 9 states and 1077 transitions. [2022-11-02 20:54:42,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 239 transitions, 786 flow [2022-11-02 20:54:42,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 239 transitions, 768 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:54:42,011 INFO L231 Difference]: Finished difference. Result has 156 places, 125 transitions, 388 flow [2022-11-02 20:54:42,011 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=388, PETRI_PLACES=156, PETRI_TRANSITIONS=125} [2022-11-02 20:54:42,012 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 10 predicate places. [2022-11-02 20:54:42,012 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 125 transitions, 388 flow [2022-11-02 20:54:42,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 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 20:54:42,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:42,013 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] [2022-11-02 20:54:42,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:54:42,014 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:54:42,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:42,015 INFO L85 PathProgramCache]: Analyzing trace with hash -699640547, now seen corresponding path program 1 times [2022-11-02 20:54:42,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:42,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670774293] [2022-11-02 20:54:42,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:42,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:42,442 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 20:54:42,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:42,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670774293] [2022-11-02 20:54:42,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670774293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:42,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:42,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:54:42,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952894189] [2022-11-02 20:54:42,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:42,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:54:42,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:42,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:54:42,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:54:42,449 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2022-11-02 20:54:42,450 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 125 transitions, 388 flow. Second operand has 7 states, 7 states have (on average 106.57142857142857) internal successors, (746), 7 states have internal predecessors, (746), 0 states have call successors, (0), 0 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 20:54:42,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:42,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2022-11-02 20:54:42,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:47,599 INFO L130 PetriNetUnfolder]: 13238/22639 cut-off events. [2022-11-02 20:54:47,599 INFO L131 PetriNetUnfolder]: For 37975/38047 co-relation queries the response was YES. [2022-11-02 20:54:47,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68802 conditions, 22639 events. 13238/22639 cut-off events. For 37975/38047 co-relation queries the response was YES. Maximal size of possible extension queue 1133. Compared 183595 event pairs, 2330 based on Foata normal form. 532/22672 useless extension candidates. Maximal degree in co-relation 68724. Up to 5647 conditions per place. [2022-11-02 20:54:47,742 INFO L137 encePairwiseOnDemand]: 127/139 looper letters, 58 selfloop transitions, 9 changer transitions 130/284 dead transitions. [2022-11-02 20:54:47,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 284 transitions, 1674 flow [2022-11-02 20:54:47,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:54:47,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:54:47,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1524 transitions. [2022-11-02 20:54:47,749 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8433868289983398 [2022-11-02 20:54:47,749 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1524 transitions. [2022-11-02 20:54:47,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1524 transitions. [2022-11-02 20:54:47,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:47,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1524 transitions. [2022-11-02 20:54:47,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.23076923076923) internal successors, (1524), 13 states have internal predecessors, (1524), 0 states have call successors, (0), 0 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 20:54:47,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 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 20:54:47,760 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 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 20:54:47,760 INFO L175 Difference]: Start difference. First operand has 156 places, 125 transitions, 388 flow. Second operand 13 states and 1524 transitions. [2022-11-02 20:54:47,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 284 transitions, 1674 flow [2022-11-02 20:54:47,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 284 transitions, 1560 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:54:47,850 INFO L231 Difference]: Finished difference. Result has 158 places, 130 transitions, 478 flow [2022-11-02 20:54:47,851 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=478, PETRI_PLACES=158, PETRI_TRANSITIONS=130} [2022-11-02 20:54:47,853 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 12 predicate places. [2022-11-02 20:54:47,853 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 130 transitions, 478 flow [2022-11-02 20:54:47,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.57142857142857) internal successors, (746), 7 states have internal predecessors, (746), 0 states have call successors, (0), 0 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 20:54:47,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:47,854 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] [2022-11-02 20:54:47,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:54:47,855 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:54:47,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:47,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1311624956, now seen corresponding path program 1 times [2022-11-02 20:54:47,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:47,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874480595] [2022-11-02 20:54:47,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:47,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:48,356 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 20:54:48,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:48,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874480595] [2022-11-02 20:54:48,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874480595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:48,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:48,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:54:48,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43440698] [2022-11-02 20:54:48,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:48,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:54:48,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:48,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:54:48,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:54:48,366 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2022-11-02 20:54:48,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 130 transitions, 478 flow. Second operand has 7 states, 7 states have (on average 106.71428571428571) internal successors, (747), 7 states have internal predecessors, (747), 0 states have call successors, (0), 0 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 20:54:48,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:48,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2022-11-02 20:54:48,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:54:52,323 INFO L130 PetriNetUnfolder]: 8972/16036 cut-off events. [2022-11-02 20:54:52,323 INFO L131 PetriNetUnfolder]: For 46169/46172 co-relation queries the response was YES. [2022-11-02 20:54:52,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53390 conditions, 16036 events. 8972/16036 cut-off events. For 46169/46172 co-relation queries the response was YES. Maximal size of possible extension queue 732. Compared 130510 event pairs, 1200 based on Foata normal form. 330/16130 useless extension candidates. Maximal degree in co-relation 53304. Up to 3520 conditions per place. [2022-11-02 20:54:52,561 INFO L137 encePairwiseOnDemand]: 125/139 looper letters, 55 selfloop transitions, 15 changer transitions 106/263 dead transitions. [2022-11-02 20:54:52,561 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 263 transitions, 1658 flow [2022-11-02 20:54:52,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:54:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:54:52,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1502 transitions. [2022-11-02 20:54:52,566 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8312119535141118 [2022-11-02 20:54:52,566 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1502 transitions. [2022-11-02 20:54:52,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1502 transitions. [2022-11-02 20:54:52,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:54:52,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1502 transitions. [2022-11-02 20:54:52,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.53846153846153) internal successors, (1502), 13 states have internal predecessors, (1502), 0 states have call successors, (0), 0 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 20:54:52,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 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 20:54:52,578 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 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 20:54:52,578 INFO L175 Difference]: Start difference. First operand has 158 places, 130 transitions, 478 flow. Second operand 13 states and 1502 transitions. [2022-11-02 20:54:52,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 263 transitions, 1658 flow [2022-11-02 20:54:52,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 263 transitions, 1577 flow, removed 38 selfloop flow, removed 4 redundant places. [2022-11-02 20:54:52,883 INFO L231 Difference]: Finished difference. Result has 169 places, 137 transitions, 624 flow [2022-11-02 20:54:52,888 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=624, PETRI_PLACES=169, PETRI_TRANSITIONS=137} [2022-11-02 20:54:52,890 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 23 predicate places. [2022-11-02 20:54:52,890 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 137 transitions, 624 flow [2022-11-02 20:54:52,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.71428571428571) internal successors, (747), 7 states have internal predecessors, (747), 0 states have call successors, (0), 0 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 20:54:52,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:54:52,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:54:52,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:54:52,891 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:54:52,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:54:52,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1348306673, now seen corresponding path program 1 times [2022-11-02 20:54:52,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:54:52,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812896929] [2022-11-02 20:54:52,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:54:52,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:54:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:54:53,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:54:53,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:54:53,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812896929] [2022-11-02 20:54:53,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812896929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:54:53,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:54:53,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:54:53,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637129114] [2022-11-02 20:54:53,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:54:53,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:54:53,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:54:53,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:54:53,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:54:53,182 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-11-02 20:54:53,183 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 137 transitions, 624 flow. Second operand has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 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 20:54:53,183 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:54:53,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-11-02 20:54:53,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:55:02,735 INFO L130 PetriNetUnfolder]: 21401/37736 cut-off events. [2022-11-02 20:55:02,735 INFO L131 PetriNetUnfolder]: For 54633/72188 co-relation queries the response was YES. [2022-11-02 20:55:03,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91890 conditions, 37736 events. 21401/37736 cut-off events. For 54633/72188 co-relation queries the response was YES. Maximal size of possible extension queue 2427. Compared 353098 event pairs, 1502 based on Foata normal form. 371/35878 useless extension candidates. Maximal degree in co-relation 91795. Up to 11388 conditions per place. [2022-11-02 20:55:03,319 INFO L137 encePairwiseOnDemand]: 128/139 looper letters, 101 selfloop transitions, 20 changer transitions 0/233 dead transitions. [2022-11-02 20:55:03,319 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 233 transitions, 1288 flow [2022-11-02 20:55:03,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:55:03,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:55:03,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1227 transitions. [2022-11-02 20:55:03,323 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8827338129496403 [2022-11-02 20:55:03,323 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1227 transitions. [2022-11-02 20:55:03,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1227 transitions. [2022-11-02 20:55:03,324 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:03,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1227 transitions. [2022-11-02 20:55:03,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 122.7) internal successors, (1227), 10 states have internal predecessors, (1227), 0 states have call successors, (0), 0 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 20:55:03,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 0 states have call successors, (0), 0 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 20:55:03,330 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 0 states have call successors, (0), 0 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 20:55:03,330 INFO L175 Difference]: Start difference. First operand has 169 places, 137 transitions, 624 flow. Second operand 10 states and 1227 transitions. [2022-11-02 20:55:03,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 233 transitions, 1288 flow [2022-11-02 20:55:03,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 233 transitions, 1186 flow, removed 49 selfloop flow, removed 10 redundant places. [2022-11-02 20:55:03,468 INFO L231 Difference]: Finished difference. Result has 165 places, 155 transitions, 707 flow [2022-11-02 20:55:03,468 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=707, PETRI_PLACES=165, PETRI_TRANSITIONS=155} [2022-11-02 20:55:03,471 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 19 predicate places. [2022-11-02 20:55:03,471 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 155 transitions, 707 flow [2022-11-02 20:55:03,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 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 20:55:03,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:03,472 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:55:03,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:55:03,472 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:55:03,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:03,473 INFO L85 PathProgramCache]: Analyzing trace with hash -204023934, now seen corresponding path program 1 times [2022-11-02 20:55:03,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:03,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296437306] [2022-11-02 20:55:03,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:03,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:03,805 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 20:55:03,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:03,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296437306] [2022-11-02 20:55:03,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296437306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:03,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:03,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:55:03,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159592656] [2022-11-02 20:55:03,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:03,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:55:03,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:03,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:55:03,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:55:03,811 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-11-02 20:55:03,812 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 155 transitions, 707 flow. Second operand has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 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 20:55:03,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:03,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-11-02 20:55:03,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:55:12,932 INFO L130 PetriNetUnfolder]: 20000/36860 cut-off events. [2022-11-02 20:55:12,932 INFO L131 PetriNetUnfolder]: For 68345/87129 co-relation queries the response was YES. [2022-11-02 20:55:13,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113786 conditions, 36860 events. 20000/36860 cut-off events. For 68345/87129 co-relation queries the response was YES. Maximal size of possible extension queue 2543. Compared 368245 event pairs, 1100 based on Foata normal form. 880/36146 useless extension candidates. Maximal degree in co-relation 113692. Up to 7040 conditions per place. [2022-11-02 20:55:13,259 INFO L137 encePairwiseOnDemand]: 128/139 looper letters, 132 selfloop transitions, 38 changer transitions 0/282 dead transitions. [2022-11-02 20:55:13,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 282 transitions, 1767 flow [2022-11-02 20:55:13,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:55:13,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:55:13,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1600 transitions. [2022-11-02 20:55:13,264 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8854454897620365 [2022-11-02 20:55:13,264 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1600 transitions. [2022-11-02 20:55:13,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1600 transitions. [2022-11-02 20:55:13,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:55:13,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1600 transitions. [2022-11-02 20:55:13,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 123.07692307692308) internal successors, (1600), 13 states have internal predecessors, (1600), 0 states have call successors, (0), 0 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 20:55:13,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 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 20:55:13,274 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 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 20:55:13,274 INFO L175 Difference]: Start difference. First operand has 165 places, 155 transitions, 707 flow. Second operand 13 states and 1600 transitions. [2022-11-02 20:55:13,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 282 transitions, 1767 flow [2022-11-02 20:55:14,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 282 transitions, 1747 flow, removed 9 selfloop flow, removed 7 redundant places. [2022-11-02 20:55:14,373 INFO L231 Difference]: Finished difference. Result has 176 places, 175 transitions, 980 flow [2022-11-02 20:55:14,373 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=687, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=980, PETRI_PLACES=176, PETRI_TRANSITIONS=175} [2022-11-02 20:55:14,374 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 30 predicate places. [2022-11-02 20:55:14,374 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 175 transitions, 980 flow [2022-11-02 20:55:14,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 114.0) internal successors, (798), 7 states have internal predecessors, (798), 0 states have call successors, (0), 0 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 20:55:14,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:55:14,375 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] [2022-11-02 20:55:14,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:55:14,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:55:14,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:55:14,376 INFO L85 PathProgramCache]: Analyzing trace with hash -790488898, now seen corresponding path program 1 times [2022-11-02 20:55:14,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:55:14,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13165058] [2022-11-02 20:55:14,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:55:14,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:55:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:55:14,847 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 20:55:14,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:55:14,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13165058] [2022-11-02 20:55:14,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13165058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:55:14,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:55:14,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:55:14,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251970048] [2022-11-02 20:55:14,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:55:14,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 20:55:14,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:55:14,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 20:55:14,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:55:14,855 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-11-02 20:55:14,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 175 transitions, 980 flow. Second operand has 8 states, 8 states have (on average 114.125) internal successors, (913), 8 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:55:14,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:55:14,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-11-02 20:55:14,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand