./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 773055aaa90ff8ec223993b190a157a4b1c15a4828ef014894ca730726d954aa --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:39:55,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:39:55,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:39:55,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:39:55,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:39:55,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:39:55,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:39:55,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:39:55,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:39:55,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:39:55,515 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:39:55,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:39:55,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:39:55,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:39:55,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:39:55,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:39:55,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:39:55,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:39:55,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:39:55,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:39:55,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:39:55,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:39:55,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:39:55,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:39:55,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:39:55,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:39:55,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:39:55,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:39:55,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:39:55,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:39:55,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:39:55,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:39:55,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:39:55,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:39:55,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:39:55,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:39:55,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:39:55,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:39:55,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:39:55,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:39:55,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:39:55,572 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:39:55,612 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:39:55,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:39:55,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:39:55,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:39:55,614 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:39:55,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:39:55,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:39:55,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:39:55,616 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:39:55,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:39:55,617 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:39:55,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:39:55,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:39:55,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:39:55,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:39:55,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:39:55,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:39:55,619 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:39:55,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:39:55,619 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:39:55,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:39:55,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:39:55,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:39:55,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:39:55,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:39:55,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:39:55,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:39:55,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:39:55,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:39:55,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:39:55,623 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:39:55,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:39:55,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:39:55,624 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_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 773055aaa90ff8ec223993b190a157a4b1c15a4828ef014894ca730726d954aa [2022-11-16 12:39:55,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:39:55,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:39:55,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:39:55,996 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:39:55,997 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:39:55,998 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 12:39:56,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8/data/34f252f53/3a59ca29ee374cb288ab8e3d0615adca/FLAG622f8eee0 [2022-11-16 12:39:56,694 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:39:56,695 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 12:39:56,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8/data/34f252f53/3a59ca29ee374cb288ab8e3d0615adca/FLAG622f8eee0 [2022-11-16 12:39:57,002 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8/data/34f252f53/3a59ca29ee374cb288ab8e3d0615adca [2022-11-16 12:39:57,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:39:57,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:39:57,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:39:57,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:39:57,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:39:57,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:39:57" (1/1) ... [2022-11-16 12:39:57,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b64038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:57, skipping insertion in model container [2022-11-16 12:39:57,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:39:57" (1/1) ... [2022-11-16 12:39:57,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:39:57,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:39:57,284 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-16 12:39:57,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:39:57,585 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:39:57,606 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-16 12:39:57,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:39:57,698 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:39:57,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:57 WrapperNode [2022-11-16 12:39:57,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:39:57,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:39:57,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:39:57,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:39:57,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:57" (1/1) ... [2022-11-16 12:39:57,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:57" (1/1) ... [2022-11-16 12:39:57,794 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 145 [2022-11-16 12:39:57,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:39:57,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:39:57,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:39:57,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:39:57,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:57" (1/1) ... [2022-11-16 12:39:57,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:57" (1/1) ... [2022-11-16 12:39:57,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:57" (1/1) ... [2022-11-16 12:39:57,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:57" (1/1) ... [2022-11-16 12:39:57,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:57" (1/1) ... [2022-11-16 12:39:57,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:57" (1/1) ... [2022-11-16 12:39:57,822 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:57" (1/1) ... [2022-11-16 12:39:57,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:57" (1/1) ... [2022-11-16 12:39:57,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:39:57,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:39:57,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:39:57,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:39:57,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:57" (1/1) ... [2022-11-16 12:39:57,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:39:57,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:39:57,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:39:57,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f23b8508-94fd-4287-bee2-4a9e2567028a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:39:57,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:39:57,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:39:57,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:39:57,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:39:57,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:39:57,955 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-16 12:39:57,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-16 12:39:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-16 12:39:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-16 12:39:57,959 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-16 12:39:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-16 12:39:57,960 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-16 12:39:57,960 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-16 12:39:57,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:39:57,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:39:57,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:39:57,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:39:57,963 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:39:58,221 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:39:58,223 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:39:58,661 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:39:58,841 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:39:58,842 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:39:58,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:39:58 BoogieIcfgContainer [2022-11-16 12:39:58,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:39:58,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:39:58,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:39:58,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:39:58,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:39:57" (1/3) ... [2022-11-16 12:39:58,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c19640c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:39:58, skipping insertion in model container [2022-11-16 12:39:58,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:39:57" (2/3) ... [2022-11-16 12:39:58,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c19640c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:39:58, skipping insertion in model container [2022-11-16 12:39:58,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:39:58" (3/3) ... [2022-11-16 12:39:58,854 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008_power.oepc_pso.oepc_rmo.oepc.i [2022-11-16 12:39:58,864 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:39:58,875 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:39:58,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 12:39:58,876 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:39:58,967 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:39:59,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 139 transitions, 298 flow [2022-11-16 12:39:59,072 INFO L130 PetriNetUnfolder]: 2/135 cut-off events. [2022-11-16 12:39:59,072 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:39:59,078 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 75 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. [2022-11-16 12:39:59,078 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 139 transitions, 298 flow [2022-11-16 12:39:59,084 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 135 transitions, 282 flow [2022-11-16 12:39:59,100 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:39:59,110 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;@194fd03b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:39:59,111 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-16 12:39:59,126 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-11-16 12:39:59,126 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:39:59,126 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:39:59,127 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:39:59,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:39:59,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:39:59,134 INFO L85 PathProgramCache]: Analyzing trace with hash -288599201, now seen corresponding path program 1 times [2022-11-16 12:39:59,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:39:59,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418452306] [2022-11-16 12:39:59,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:39:59,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:39:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:39:59,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:39:59,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:39:59,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418452306] [2022-11-16 12:39:59,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418452306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:39:59,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:39:59,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:39:59,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749690503] [2022-11-16 12:39:59,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:39:59,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:39:59,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:39:59,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:39:59,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:39:59,882 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 139 [2022-11-16 12:39:59,888 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) [2022-11-16 12:39:59,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:39:59,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 139 [2022-11-16 12:39:59,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:40:00,248 INFO L130 PetriNetUnfolder]: 162/623 cut-off events. [2022-11-16 12:40:00,248 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-16 12:40:00,253 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 3466 event pairs, 132 based on Foata normal form. 46/628 useless extension candidates. Maximal degree in co-relation 871. Up to 191 conditions per place. [2022-11-16 12:40:00,258 INFO L137 encePairwiseOnDemand]: 134/139 looper letters, 18 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2022-11-16 12:40:00,259 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 139 transitions, 339 flow [2022-11-16 12:40:00,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:40:00,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:40:00,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2022-11-16 12:40:00,273 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9448441247002398 [2022-11-16 12:40:00,274 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2022-11-16 12:40:00,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2022-11-16 12:40:00,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:40:00,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2022-11-16 12:40:00,283 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) [2022-11-16 12:40:00,290 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) [2022-11-16 12:40:00,290 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) [2022-11-16 12:40:00,292 INFO L175 Difference]: Start difference. First operand has 146 places, 135 transitions, 282 flow. Second operand 3 states and 394 transitions. [2022-11-16 12:40:00,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 139 transitions, 339 flow [2022-11-16 12:40:00,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 139 transitions, 332 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:40:00,304 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 274 flow [2022-11-16 12:40:00,306 INFO L271 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} [2022-11-16 12:40:00,312 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2022-11-16 12:40:00,312 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 274 flow [2022-11-16 12:40:00,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:00,313 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:40:00,314 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:40:00,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:40:00,314 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)] === [2022-11-16 12:40:00,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:40:00,316 INFO L85 PathProgramCache]: Analyzing trace with hash -198238146, now seen corresponding path program 1 times [2022-11-16 12:40:00,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:40:00,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177965168] [2022-11-16 12:40:00,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:40:00,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:40:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:40:00,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:40:00,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:40:00,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177965168] [2022-11-16 12:40:00,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177965168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:40:00,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:40:00,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:40:00,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247679951] [2022-11-16 12:40:00,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:40:00,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:40:00,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:40:00,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:40:00,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:40:00,948 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2022-11-16 12:40:00,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 274 flow. Second operand has 7 states, 7 states have (on average 106.42857142857143) internal successors, (745), 7 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:00,950 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:40:00,950 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2022-11-16 12:40:00,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:40:07,519 INFO L130 PetriNetUnfolder]: 16948/36583 cut-off events. [2022-11-16 12:40:07,520 INFO L131 PetriNetUnfolder]: For 1335/1335 co-relation queries the response was YES. [2022-11-16 12:40:07,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61199 conditions, 36583 events. 16948/36583 cut-off events. For 1335/1335 co-relation queries the response was YES. Maximal size of possible extension queue 1417. Compared 387367 event pairs, 1620 based on Foata normal form. 0/35951 useless extension candidates. Maximal degree in co-relation 61137. Up to 8163 conditions per place. [2022-11-16 12:40:07,735 INFO L137 encePairwiseOnDemand]: 125/139 looper letters, 48 selfloop transitions, 10 changer transitions 134/279 dead transitions. [2022-11-16 12:40:07,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 279 transitions, 950 flow [2022-11-16 12:40:07,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:40:07,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:40:07,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1534 transitions. [2022-11-16 12:40:07,741 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8489208633093526 [2022-11-16 12:40:07,741 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1534 transitions. [2022-11-16 12:40:07,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1534 transitions. [2022-11-16 12:40:07,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:40:07,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1534 transitions. [2022-11-16 12:40:07,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 118.0) internal successors, (1534), 13 states have internal predecessors, (1534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:07,751 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) [2022-11-16 12:40:07,752 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) [2022-11-16 12:40:07,752 INFO L175 Difference]: Start difference. First operand has 142 places, 131 transitions, 274 flow. Second operand 13 states and 1534 transitions. [2022-11-16 12:40:07,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 279 transitions, 950 flow [2022-11-16 12:40:07,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 279 transitions, 924 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:40:07,759 INFO L231 Difference]: Finished difference. Result has 164 places, 124 transitions, 374 flow [2022-11-16 12:40:07,760 INFO L271 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=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=374, PETRI_PLACES=164, PETRI_TRANSITIONS=124} [2022-11-16 12:40:07,760 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 18 predicate places. [2022-11-16 12:40:07,761 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 124 transitions, 374 flow [2022-11-16 12:40:07,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.42857142857143) internal successors, (745), 7 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:07,762 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:40:07,762 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:40:07,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:40:07,762 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)] === [2022-11-16 12:40:07,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:40:07,763 INFO L85 PathProgramCache]: Analyzing trace with hash -235082933, now seen corresponding path program 1 times [2022-11-16 12:40:07,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:40:07,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746101117] [2022-11-16 12:40:07,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:40:07,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:40:07,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:40:08,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:40:08,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:40:08,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746101117] [2022-11-16 12:40:08,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746101117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:40:08,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:40:08,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:40:08,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602131816] [2022-11-16 12:40:08,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:40:08,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:40:08,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:40:08,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:40:08,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:40:08,148 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2022-11-16 12:40:08,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 124 transitions, 374 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) [2022-11-16 12:40:08,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:40:08,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2022-11-16 12:40:08,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:40:12,276 INFO L130 PetriNetUnfolder]: 12526/21873 cut-off events. [2022-11-16 12:40:12,276 INFO L131 PetriNetUnfolder]: For 44557/44641 co-relation queries the response was YES. [2022-11-16 12:40:12,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68390 conditions, 21873 events. 12526/21873 cut-off events. For 44557/44641 co-relation queries the response was YES. Maximal size of possible extension queue 1047. Compared 180922 event pairs, 2190 based on Foata normal form. 412/21684 useless extension candidates. Maximal degree in co-relation 68314. Up to 7067 conditions per place. [2022-11-16 12:40:12,454 INFO L137 encePairwiseOnDemand]: 125/139 looper letters, 52 selfloop transitions, 20 changer transitions 118/277 dead transitions. [2022-11-16 12:40:12,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 277 transitions, 1648 flow [2022-11-16 12:40:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:40:12,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:40:12,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1522 transitions. [2022-11-16 12:40:12,459 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8422800221361373 [2022-11-16 12:40:12,459 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1522 transitions. [2022-11-16 12:40:12,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1522 transitions. [2022-11-16 12:40:12,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:40:12,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1522 transitions. [2022-11-16 12:40:12,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.07692307692308) internal successors, (1522), 13 states have internal predecessors, (1522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:12,468 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) [2022-11-16 12:40:12,470 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) [2022-11-16 12:40:12,470 INFO L175 Difference]: Start difference. First operand has 164 places, 124 transitions, 374 flow. Second operand 13 states and 1522 transitions. [2022-11-16 12:40:12,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 277 transitions, 1648 flow [2022-11-16 12:40:12,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 277 transitions, 1620 flow, removed 12 selfloop flow, removed 4 redundant places. [2022-11-16 12:40:12,684 INFO L231 Difference]: Finished difference. Result has 161 places, 138 transitions, 619 flow [2022-11-16 12:40:12,685 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=619, PETRI_PLACES=161, PETRI_TRANSITIONS=138} [2022-11-16 12:40:12,687 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 15 predicate places. [2022-11-16 12:40:12,687 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 138 transitions, 619 flow [2022-11-16 12:40:12,688 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) [2022-11-16 12:40:12,688 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:40:12,689 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:40:12,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:40:12,689 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)] === [2022-11-16 12:40:12,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:40:12,690 INFO L85 PathProgramCache]: Analyzing trace with hash 2052293636, now seen corresponding path program 1 times [2022-11-16 12:40:12,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:40:12,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038050715] [2022-11-16 12:40:12,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:40:12,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:40:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:40:13,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:40:13,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:40:13,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038050715] [2022-11-16 12:40:13,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038050715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:40:13,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:40:13,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:40:13,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696725258] [2022-11-16 12:40:13,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:40:13,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:40:13,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:40:13,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:40:13,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:40:13,070 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2022-11-16 12:40:13,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 138 transitions, 619 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) [2022-11-16 12:40:13,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:40:13,072 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2022-11-16 12:40:13,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:40:16,967 INFO L130 PetriNetUnfolder]: 10828/18801 cut-off events. [2022-11-16 12:40:16,968 INFO L131 PetriNetUnfolder]: For 73817/73821 co-relation queries the response was YES. [2022-11-16 12:40:17,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70673 conditions, 18801 events. 10828/18801 cut-off events. For 73817/73821 co-relation queries the response was YES. Maximal size of possible extension queue 912. Compared 152925 event pairs, 1778 based on Foata normal form. 326/18882 useless extension candidates. Maximal degree in co-relation 70585. Up to 6343 conditions per place. [2022-11-16 12:40:17,163 INFO L137 encePairwiseOnDemand]: 125/139 looper letters, 54 selfloop transitions, 31 changer transitions 100/272 dead transitions. [2022-11-16 12:40:17,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 272 transitions, 1965 flow [2022-11-16 12:40:17,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:40:17,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:40:17,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1519 transitions. [2022-11-16 12:40:17,170 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8406198118428334 [2022-11-16 12:40:17,171 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1519 transitions. [2022-11-16 12:40:17,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1519 transitions. [2022-11-16 12:40:17,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:40:17,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1519 transitions. [2022-11-16 12:40:17,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 116.84615384615384) internal successors, (1519), 13 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:17,184 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) [2022-11-16 12:40:17,185 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) [2022-11-16 12:40:17,186 INFO L175 Difference]: Start difference. First operand has 161 places, 138 transitions, 619 flow. Second operand 13 states and 1519 transitions. [2022-11-16 12:40:17,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 272 transitions, 1965 flow [2022-11-16 12:40:17,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 272 transitions, 1893 flow, removed 36 selfloop flow, removed 3 redundant places. [2022-11-16 12:40:17,636 INFO L231 Difference]: Finished difference. Result has 173 places, 148 transitions, 876 flow [2022-11-16 12:40:17,637 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=601, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=876, PETRI_PLACES=173, PETRI_TRANSITIONS=148} [2022-11-16 12:40:17,638 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 27 predicate places. [2022-11-16 12:40:17,638 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 148 transitions, 876 flow [2022-11-16 12:40:17,638 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) [2022-11-16 12:40:17,639 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:40:17,639 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:40:17,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:40:17,639 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)] === [2022-11-16 12:40:17,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:40:17,640 INFO L85 PathProgramCache]: Analyzing trace with hash 617511883, now seen corresponding path program 1 times [2022-11-16 12:40:17,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:40:17,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844352861] [2022-11-16 12:40:17,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:40:17,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:40:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:40:18,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:40:18,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:40:18,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844352861] [2022-11-16 12:40:18,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844352861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:40:18,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:40:18,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:40:18,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723464628] [2022-11-16 12:40:18,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:40:18,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:40:18,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:40:18,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:40:18,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:40:18,048 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2022-11-16 12:40:18,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 148 transitions, 876 flow. Second operand has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:18,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:40:18,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2022-11-16 12:40:18,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:40:23,066 INFO L130 PetriNetUnfolder]: 12576/22593 cut-off events. [2022-11-16 12:40:23,067 INFO L131 PetriNetUnfolder]: For 108528/108764 co-relation queries the response was YES. [2022-11-16 12:40:23,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87254 conditions, 22593 events. 12576/22593 cut-off events. For 108528/108764 co-relation queries the response was YES. Maximal size of possible extension queue 1029. Compared 192788 event pairs, 2222 based on Foata normal form. 364/22225 useless extension candidates. Maximal degree in co-relation 87153. Up to 5884 conditions per place. [2022-11-16 12:40:23,297 INFO L137 encePairwiseOnDemand]: 126/139 looper letters, 62 selfloop transitions, 33 changer transitions 105/287 dead transitions. [2022-11-16 12:40:23,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 287 transitions, 2389 flow [2022-11-16 12:40:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:40:23,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:40:23,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1511 transitions. [2022-11-16 12:40:23,302 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8361925843940232 [2022-11-16 12:40:23,302 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1511 transitions. [2022-11-16 12:40:23,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1511 transitions. [2022-11-16 12:40:23,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:40:23,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1511 transitions. [2022-11-16 12:40:23,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 116.23076923076923) internal successors, (1511), 13 states have internal predecessors, (1511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:23,311 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) [2022-11-16 12:40:23,312 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) [2022-11-16 12:40:23,312 INFO L175 Difference]: Start difference. First operand has 173 places, 148 transitions, 876 flow. Second operand 13 states and 1511 transitions. [2022-11-16 12:40:23,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 287 transitions, 2389 flow [2022-11-16 12:40:23,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 287 transitions, 2261 flow, removed 64 selfloop flow, removed 15 redundant places. [2022-11-16 12:40:23,862 INFO L231 Difference]: Finished difference. Result has 173 places, 155 transitions, 1104 flow [2022-11-16 12:40:23,862 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1104, PETRI_PLACES=173, PETRI_TRANSITIONS=155} [2022-11-16 12:40:23,863 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 27 predicate places. [2022-11-16 12:40:23,863 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 155 transitions, 1104 flow [2022-11-16 12:40:23,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:23,864 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:40:23,864 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:40:23,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:40:23,865 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)] === [2022-11-16 12:40:23,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:40:23,865 INFO L85 PathProgramCache]: Analyzing trace with hash 969978455, now seen corresponding path program 1 times [2022-11-16 12:40:23,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:40:23,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590982385] [2022-11-16 12:40:23,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:40:23,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:40:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:40:24,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:40:24,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:40:24,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590982385] [2022-11-16 12:40:24,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590982385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:40:24,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:40:24,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:40:24,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335669334] [2022-11-16 12:40:24,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:40:24,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:40:24,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:40:24,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:40:24,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:40:24,164 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2022-11-16 12:40:24,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 155 transitions, 1104 flow. Second operand has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:24,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:40:24,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2022-11-16 12:40:24,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:40:28,977 INFO L130 PetriNetUnfolder]: 11693/20680 cut-off events. [2022-11-16 12:40:28,977 INFO L131 PetriNetUnfolder]: For 147994/148110 co-relation queries the response was YES. [2022-11-16 12:40:29,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88740 conditions, 20680 events. 11693/20680 cut-off events. For 147994/148110 co-relation queries the response was YES. Maximal size of possible extension queue 1023. Compared 175463 event pairs, 1656 based on Foata normal form. 424/20857 useless extension candidates. Maximal degree in co-relation 88640. Up to 5756 conditions per place. [2022-11-16 12:40:29,158 INFO L137 encePairwiseOnDemand]: 127/139 looper letters, 81 selfloop transitions, 18 changer transitions 128/314 dead transitions. [2022-11-16 12:40:29,158 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 314 transitions, 3319 flow [2022-11-16 12:40:29,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:40:29,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:40:29,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1507 transitions. [2022-11-16 12:40:29,163 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8339789706696181 [2022-11-16 12:40:29,163 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1507 transitions. [2022-11-16 12:40:29,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1507 transitions. [2022-11-16 12:40:29,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:40:29,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1507 transitions. [2022-11-16 12:40:29,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.92307692307692) internal successors, (1507), 13 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:29,173 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) [2022-11-16 12:40:29,174 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) [2022-11-16 12:40:29,174 INFO L175 Difference]: Start difference. First operand has 173 places, 155 transitions, 1104 flow. Second operand 13 states and 1507 transitions. [2022-11-16 12:40:29,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 314 transitions, 3319 flow [2022-11-16 12:40:29,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 314 transitions, 3209 flow, removed 13 selfloop flow, removed 4 redundant places. [2022-11-16 12:40:29,323 INFO L231 Difference]: Finished difference. Result has 184 places, 164 transitions, 1367 flow [2022-11-16 12:40:29,323 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=1065, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1367, PETRI_PLACES=184, PETRI_TRANSITIONS=164} [2022-11-16 12:40:29,324 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 38 predicate places. [2022-11-16 12:40:29,324 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 164 transitions, 1367 flow [2022-11-16 12:40:29,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 106.85714285714286) internal successors, (748), 7 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:29,325 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:40:29,325 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:40:29,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:40:29,326 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)] === [2022-11-16 12:40:29,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:40:29,326 INFO L85 PathProgramCache]: Analyzing trace with hash 54012255, now seen corresponding path program 1 times [2022-11-16 12:40:29,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:40:29,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078796606] [2022-11-16 12:40:29,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:40:29,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:40:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:40:29,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:40:29,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:40:29,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078796606] [2022-11-16 12:40:29,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078796606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:40:29,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:40:29,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:40:29,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055232314] [2022-11-16 12:40:29,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:40:29,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:40:29,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:40:29,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:40:29,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:40:29,590 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-11-16 12:40:29,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 164 transitions, 1367 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) [2022-11-16 12:40:29,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:40:29,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-11-16 12:40:29,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:40:40,682 INFO L130 PetriNetUnfolder]: 32321/56945 cut-off events. [2022-11-16 12:40:40,682 INFO L131 PetriNetUnfolder]: For 206439/227080 co-relation queries the response was YES. [2022-11-16 12:40:41,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149311 conditions, 56945 events. 32321/56945 cut-off events. For 206439/227080 co-relation queries the response was YES. Maximal size of possible extension queue 3263. Compared 558455 event pairs, 1892 based on Foata normal form. 1650/55941 useless extension candidates. Maximal degree in co-relation 149206. Up to 17866 conditions per place. [2022-11-16 12:40:41,523 INFO L137 encePairwiseOnDemand]: 128/139 looper letters, 125 selfloop transitions, 20 changer transitions 0/281 dead transitions. [2022-11-16 12:40:41,524 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 281 transitions, 2688 flow [2022-11-16 12:40:41,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:40:41,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-16 12:40:41,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1227 transitions. [2022-11-16 12:40:41,528 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8827338129496403 [2022-11-16 12:40:41,528 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1227 transitions. [2022-11-16 12:40:41,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1227 transitions. [2022-11-16 12:40:41,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:40:41,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1227 transitions. [2022-11-16 12:40:41,532 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) [2022-11-16 12:40:41,535 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) [2022-11-16 12:40:41,536 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) [2022-11-16 12:40:41,536 INFO L175 Difference]: Start difference. First operand has 184 places, 164 transitions, 1367 flow. Second operand 10 states and 1227 transitions. [2022-11-16 12:40:41,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 281 transitions, 2688 flow [2022-11-16 12:40:41,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 281 transitions, 2656 flow, removed 10 selfloop flow, removed 5 redundant places. [2022-11-16 12:40:41,820 INFO L231 Difference]: Finished difference. Result has 185 places, 182 transitions, 1478 flow [2022-11-16 12:40:41,821 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=1335, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1478, PETRI_PLACES=185, PETRI_TRANSITIONS=182} [2022-11-16 12:40:41,822 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 39 predicate places. [2022-11-16 12:40:41,822 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 182 transitions, 1478 flow [2022-11-16 12:40:41,822 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) [2022-11-16 12:40:41,823 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:40:41,823 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:40:41,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:40:41,823 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:40:41,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:40:41,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1201413801, now seen corresponding path program 1 times [2022-11-16 12:40:41,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:40:41,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703124884] [2022-11-16 12:40:41,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:40:41,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:40:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:40:42,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:40:42,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:40:42,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703124884] [2022-11-16 12:40:42,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703124884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:40:42,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:40:42,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:40:42,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549653471] [2022-11-16 12:40:42,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:40:42,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:40:42,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:40:42,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:40:42,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:40:42,191 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 139 [2022-11-16 12:40:42,193 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 182 transitions, 1478 flow. Second operand has 7 states, 7 states have (on average 107.28571428571429) internal successors, (751), 7 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:42,193 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:40:42,193 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 139 [2022-11-16 12:40:42,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:40:49,565 INFO L130 PetriNetUnfolder]: 12705/33443 cut-off events. [2022-11-16 12:40:49,565 INFO L131 PetriNetUnfolder]: For 147699/153628 co-relation queries the response was YES. [2022-11-16 12:40:49,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112809 conditions, 33443 events. 12705/33443 cut-off events. For 147699/153628 co-relation queries the response was YES. Maximal size of possible extension queue 2334. Compared 423147 event pairs, 3725 based on Foata normal form. 633/31797 useless extension candidates. Maximal degree in co-relation 112695. Up to 6047 conditions per place. [2022-11-16 12:40:50,052 INFO L137 encePairwiseOnDemand]: 127/139 looper letters, 138 selfloop transitions, 54 changer transitions 2/299 dead transitions. [2022-11-16 12:40:50,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 299 transitions, 2973 flow [2022-11-16 12:40:50,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:40:50,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:40:50,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1495 transitions. [2022-11-16 12:40:50,057 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8273381294964028 [2022-11-16 12:40:50,057 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1495 transitions. [2022-11-16 12:40:50,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1495 transitions. [2022-11-16 12:40:50,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:40:50,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1495 transitions. [2022-11-16 12:40:50,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:50,068 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) [2022-11-16 12:40:50,070 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) [2022-11-16 12:40:50,070 INFO L175 Difference]: Start difference. First operand has 185 places, 182 transitions, 1478 flow. Second operand 13 states and 1495 transitions. [2022-11-16 12:40:50,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 299 transitions, 2973 flow [2022-11-16 12:40:50,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 299 transitions, 2941 flow, removed 15 selfloop flow, removed 7 redundant places. [2022-11-16 12:40:50,601 INFO L231 Difference]: Finished difference. Result has 202 places, 208 transitions, 2190 flow [2022-11-16 12:40:50,601 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=1452, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2190, PETRI_PLACES=202, PETRI_TRANSITIONS=208} [2022-11-16 12:40:50,602 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 56 predicate places. [2022-11-16 12:40:50,602 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 208 transitions, 2190 flow [2022-11-16 12:40:50,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 107.28571428571429) internal successors, (751), 7 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:40:50,603 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:40:50,603 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:40:50,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:40:50,604 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-16 12:40:50,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:40:50,604 INFO L85 PathProgramCache]: Analyzing trace with hash -198371533, now seen corresponding path program 1 times [2022-11-16 12:40:50,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:40:50,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663430873] [2022-11-16 12:40:50,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:40:50,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:40:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:40:50,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:40:50,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:40:50,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663430873] [2022-11-16 12:40:50,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663430873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:40:50,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:40:50,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:40:50,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829762007] [2022-11-16 12:40:50,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:40:50,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:40:50,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:40:50,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:40:50,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:40:50,910 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-11-16 12:40:50,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 208 transitions, 2190 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) [2022-11-16 12:40:50,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:40:50,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-11-16 12:40:50,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand