./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa --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 d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:28:24,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:28:24,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:28:24,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:28:24,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:28:24,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:28:24,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:28:24,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:28:24,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:28:24,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:28:24,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:28:24,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:28:24,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:28:24,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:28:24,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:28:24,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:28:24,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:28:24,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:28:24,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:28:24,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:28:24,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:28:24,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:28:24,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:28:24,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:28:24,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:28:24,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:28:24,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:28:24,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:28:24,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:28:24,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:28:24,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:28:24,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:28:24,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:28:24,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:28:24,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:28:24,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:28:24,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:28:24,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:28:24,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:28:24,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:28:24,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:28:24,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 22:28:24,497 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:28:24,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:28:24,497 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:28:24,497 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:28:24,498 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:28:24,498 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:28:24,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:28:24,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:28:24,498 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:28:24,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:28:24,499 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:28:24,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:28:24,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:28:24,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:28:24,499 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:28:24,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:28:24,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:28:24,500 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:28:24,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:28:24,500 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:28:24,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:28:24,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:28:24,500 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:28:24,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:28:24,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:28:24,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:28:24,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:28:24,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:28:24,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:28:24,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:28:24,501 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:28:24,501 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:28:24,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:28:24,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:28:24,502 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_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d721a74d879c75d156b7dfbd9383140c70ef6831602ea84a0f8988cd7fdc0c32 [2021-12-06 22:28:24,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:28:24,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:28:24,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:28:24,702 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:28:24,703 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:28:24,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-12-06 22:28:24,752 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/data/fc031402c/409f1dd7899f4401828f142449d5b3a4/FLAGca2c9f0c3 [2021-12-06 22:28:25,150 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:28:25,151 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2021-12-06 22:28:25,156 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/data/fc031402c/409f1dd7899f4401828f142449d5b3a4/FLAGca2c9f0c3 [2021-12-06 22:28:25,166 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/data/fc031402c/409f1dd7899f4401828f142449d5b3a4 [2021-12-06 22:28:25,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:28:25,169 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:28:25,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:28:25,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:28:25,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:28:25,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:28:25" (1/1) ... [2021-12-06 22:28:25,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@303fd6fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:25, skipping insertion in model container [2021-12-06 22:28:25,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:28:25" (1/1) ... [2021-12-06 22:28:25,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:28:25,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:28:25,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2021-12-06 22:28:25,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:28:25,343 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:28:25,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c[3770,3783] [2021-12-06 22:28:25,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:28:25,377 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:28:25,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:25 WrapperNode [2021-12-06 22:28:25,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:28:25,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:28:25,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:28:25,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:28:25,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:25" (1/1) ... [2021-12-06 22:28:25,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:25" (1/1) ... [2021-12-06 22:28:25,412 INFO L137 Inliner]: procedures = 27, calls = 73, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 245 [2021-12-06 22:28:25,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:28:25,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:28:25,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:28:25,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:28:25,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:25" (1/1) ... [2021-12-06 22:28:25,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:25" (1/1) ... [2021-12-06 22:28:25,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:25" (1/1) ... [2021-12-06 22:28:25,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:25" (1/1) ... [2021-12-06 22:28:25,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:25" (1/1) ... [2021-12-06 22:28:25,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:25" (1/1) ... [2021-12-06 22:28:25,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:25" (1/1) ... [2021-12-06 22:28:25,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:28:25,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:28:25,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:28:25,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:28:25,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:25" (1/1) ... [2021-12-06 22:28:25,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:28:25,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:28:25,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:28:25,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:28:25,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:28:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:28:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:28:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:28:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-12-06 22:28:25,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-12-06 22:28:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-12-06 22:28:25,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-12-06 22:28:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-12-06 22:28:25,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-12-06 22:28:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-12-06 22:28:25,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-12-06 22:28:25,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:28:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-06 22:28:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-06 22:28:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 22:28:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:28:25,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:28:25,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:28:25,494 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 22:28:25,565 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:28:25,566 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:28:25,859 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:28:25,950 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:28:25,950 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-06 22:28:25,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:28:25 BoogieIcfgContainer [2021-12-06 22:28:25,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:28:25,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:28:25,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:28:25,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:28:25,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:28:25" (1/3) ... [2021-12-06 22:28:25,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa0f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:28:25, skipping insertion in model container [2021-12-06 22:28:25,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:28:25" (2/3) ... [2021-12-06 22:28:25,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa0f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:28:25, skipping insertion in model container [2021-12-06 22:28:25,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:28:25" (3/3) ... [2021-12-06 22:28:25,958 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2021-12-06 22:28:25,962 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 22:28:25,963 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:28:25,963 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:28:25,963 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 22:28:25,992 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,993 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,994 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,995 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,996 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,997 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,997 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,997 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,997 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,997 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,997 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,998 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:25,999 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,000 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,000 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,000 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,000 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,000 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,000 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,001 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,002 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,003 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,004 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,004 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,004 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,004 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,004 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,005 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,005 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,005 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,005 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,005 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,005 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,005 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,005 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,005 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,006 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,015 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,015 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,015 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,015 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,016 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,016 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,016 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,016 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,016 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,016 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,016 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,016 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,016 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,016 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,017 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,018 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,018 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,018 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,018 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,018 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,018 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,019 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,019 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,019 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,019 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,019 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,019 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,019 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,019 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,019 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,019 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,020 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,020 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,020 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,020 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,020 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,020 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,020 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,020 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,020 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,020 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,021 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,021 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,021 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,021 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,021 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,021 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,021 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,021 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,021 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,021 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,022 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,022 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,022 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,022 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,024 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,024 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~nondet15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,025 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,025 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,025 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,025 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,025 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,025 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,025 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,025 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,025 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,025 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,026 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,026 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,027 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,028 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,028 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,029 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,030 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,030 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,030 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,030 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,030 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,030 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,030 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,030 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,031 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,031 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,032 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~pre9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,032 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,032 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,032 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,032 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,032 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,033 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,034 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,035 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 22:28:26,039 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2021-12-06 22:28:26,076 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:28:26,082 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 22:28:26,082 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-12-06 22:28:26,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 204 places, 205 transitions, 454 flow [2021-12-06 22:28:26,148 INFO L129 PetriNetUnfolder]: 14/190 cut-off events. [2021-12-06 22:28:26,148 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-06 22:28:26,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 190 events. 14/190 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 162 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2021-12-06 22:28:26,153 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 205 transitions, 454 flow [2021-12-06 22:28:26,157 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 181 transitions, 392 flow [2021-12-06 22:28:26,184 INFO L129 PetriNetUnfolder]: 14/180 cut-off events. [2021-12-06 22:28:26,184 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-12-06 22:28:26,184 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:28:26,185 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:26,185 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-06 22:28:26,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:26,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1446293919, now seen corresponding path program 1 times [2021-12-06 22:28:26,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:26,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408484527] [2021-12-06 22:28:26,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:26,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:26,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:26,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:26,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408484527] [2021-12-06 22:28:26,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408484527] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:28:26,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:28:26,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:28:26,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748751259] [2021-12-06 22:28:26,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:28:26,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 22:28:26,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:26,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 22:28:26,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 22:28:26,466 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 207 [2021-12-06 22:28:26,470 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 181 transitions, 392 flow. Second operand has 2 states, 2 states have (on average 181.0) internal successors, (362), 2 states have internal predecessors, (362), 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) [2021-12-06 22:28:26,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:28:26,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 207 [2021-12-06 22:28:26,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:28:26,606 INFO L129 PetriNetUnfolder]: 191/594 cut-off events. [2021-12-06 22:28:26,606 INFO L130 PetriNetUnfolder]: For 114/114 co-relation queries the response was YES. [2021-12-06 22:28:26,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1008 conditions, 594 events. 191/594 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2256 event pairs, 111 based on Foata normal form. 64/606 useless extension candidates. Maximal degree in co-relation 865. Up to 286 conditions per place. [2021-12-06 22:28:26,613 INFO L132 encePairwiseOnDemand]: 199/207 looper letters, 21 selfloop transitions, 0 changer transitions 4/173 dead transitions. [2021-12-06 22:28:26,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 173 transitions, 418 flow [2021-12-06 22:28:26,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 22:28:26,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-12-06 22:28:26,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 375 transitions. [2021-12-06 22:28:26,625 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9057971014492754 [2021-12-06 22:28:26,625 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 375 transitions. [2021-12-06 22:28:26,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 375 transitions. [2021-12-06 22:28:26,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:28:26,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 375 transitions. [2021-12-06 22:28:26,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 187.5) internal successors, (375), 2 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:28:26,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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) [2021-12-06 22:28:26,637 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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) [2021-12-06 22:28:26,638 INFO L186 Difference]: Start difference. First operand has 180 places, 181 transitions, 392 flow. Second operand 2 states and 375 transitions. [2021-12-06 22:28:26,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 173 transitions, 418 flow [2021-12-06 22:28:26,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 173 transitions, 398 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-12-06 22:28:26,646 INFO L242 Difference]: Finished difference. Result has 173 places, 169 transitions, 348 flow [2021-12-06 22:28:26,647 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=348, PETRI_PLACES=173, PETRI_TRANSITIONS=169} [2021-12-06 22:28:26,650 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, -7 predicate places. [2021-12-06 22:28:26,650 INFO L470 AbstractCegarLoop]: Abstraction has has 173 places, 169 transitions, 348 flow [2021-12-06 22:28:26,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 181.0) internal successors, (362), 2 states have internal predecessors, (362), 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) [2021-12-06 22:28:26,651 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:28:26,651 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:26,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 22:28:26,651 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-06 22:28:26,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:26,652 INFO L85 PathProgramCache]: Analyzing trace with hash 2127134419, now seen corresponding path program 1 times [2021-12-06 22:28:26,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:26,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854310814] [2021-12-06 22:28:26,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:26,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:26,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:26,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:26,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854310814] [2021-12-06 22:28:26,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854310814] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:28:26,864 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:28:26,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 22:28:26,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493901458] [2021-12-06 22:28:26,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:28:26,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:28:26,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:26,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:28:26,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:28:26,870 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 207 [2021-12-06 22:28:26,872 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 169 transitions, 348 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 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) [2021-12-06 22:28:26,872 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:28:26,873 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 207 [2021-12-06 22:28:26,873 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:28:27,238 INFO L129 PetriNetUnfolder]: 481/1385 cut-off events. [2021-12-06 22:28:27,238 INFO L130 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2021-12-06 22:28:27,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2212 conditions, 1385 events. 481/1385 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 8491 event pairs, 149 based on Foata normal form. 1/1264 useless extension candidates. Maximal degree in co-relation 2209. Up to 353 conditions per place. [2021-12-06 22:28:27,250 INFO L132 encePairwiseOnDemand]: 196/207 looper letters, 69 selfloop transitions, 10 changer transitions 4/211 dead transitions. [2021-12-06 22:28:27,250 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 211 transitions, 614 flow [2021-12-06 22:28:27,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:28:27,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 22:28:27,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 978 transitions. [2021-12-06 22:28:27,254 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7874396135265701 [2021-12-06 22:28:27,254 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 978 transitions. [2021-12-06 22:28:27,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 978 transitions. [2021-12-06 22:28:27,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:28:27,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 978 transitions. [2021-12-06 22:28:27,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 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) [2021-12-06 22:28:27,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 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) [2021-12-06 22:28:27,263 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 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) [2021-12-06 22:28:27,263 INFO L186 Difference]: Start difference. First operand has 173 places, 169 transitions, 348 flow. Second operand 6 states and 978 transitions. [2021-12-06 22:28:27,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 211 transitions, 614 flow [2021-12-06 22:28:27,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 211 transitions, 614 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 22:28:27,268 INFO L242 Difference]: Finished difference. Result has 178 places, 175 transitions, 407 flow [2021-12-06 22:28:27,269 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=407, PETRI_PLACES=178, PETRI_TRANSITIONS=175} [2021-12-06 22:28:27,269 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, -2 predicate places. [2021-12-06 22:28:27,269 INFO L470 AbstractCegarLoop]: Abstraction has has 178 places, 175 transitions, 407 flow [2021-12-06 22:28:27,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 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) [2021-12-06 22:28:27,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:28:27,270 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:27,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 22:28:27,271 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-06 22:28:27,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:27,271 INFO L85 PathProgramCache]: Analyzing trace with hash 283635425, now seen corresponding path program 1 times [2021-12-06 22:28:27,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:27,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169852408] [2021-12-06 22:28:27,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:27,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:27,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:27,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:27,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169852408] [2021-12-06 22:28:27,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169852408] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:28:27,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:28:27,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 22:28:27,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482572785] [2021-12-06 22:28:27,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:28:27,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:28:27,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:27,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:28:27,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:28:27,414 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 207 [2021-12-06 22:28:27,415 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 175 transitions, 407 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 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) [2021-12-06 22:28:27,415 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:28:27,415 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 207 [2021-12-06 22:28:27,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:28:27,819 INFO L129 PetriNetUnfolder]: 703/1924 cut-off events. [2021-12-06 22:28:27,819 INFO L130 PetriNetUnfolder]: For 344/344 co-relation queries the response was YES. [2021-12-06 22:28:27,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3539 conditions, 1924 events. 703/1924 cut-off events. For 344/344 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 12946 event pairs, 240 based on Foata normal form. 1/1743 useless extension candidates. Maximal degree in co-relation 3531. Up to 590 conditions per place. [2021-12-06 22:28:27,861 INFO L132 encePairwiseOnDemand]: 197/207 looper letters, 75 selfloop transitions, 10 changer transitions 4/217 dead transitions. [2021-12-06 22:28:27,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 217 transitions, 712 flow [2021-12-06 22:28:27,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:28:27,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 22:28:27,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 978 transitions. [2021-12-06 22:28:27,865 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7874396135265701 [2021-12-06 22:28:27,865 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 978 transitions. [2021-12-06 22:28:27,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 978 transitions. [2021-12-06 22:28:27,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:28:27,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 978 transitions. [2021-12-06 22:28:27,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 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) [2021-12-06 22:28:27,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 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) [2021-12-06 22:28:27,875 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 207.0) internal successors, (1449), 7 states have internal predecessors, (1449), 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) [2021-12-06 22:28:27,875 INFO L186 Difference]: Start difference. First operand has 178 places, 175 transitions, 407 flow. Second operand 6 states and 978 transitions. [2021-12-06 22:28:27,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 217 transitions, 712 flow [2021-12-06 22:28:27,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 217 transitions, 702 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-12-06 22:28:27,883 INFO L242 Difference]: Finished difference. Result has 183 places, 180 transitions, 473 flow [2021-12-06 22:28:27,884 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=473, PETRI_PLACES=183, PETRI_TRANSITIONS=180} [2021-12-06 22:28:27,885 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 3 predicate places. [2021-12-06 22:28:27,885 INFO L470 AbstractCegarLoop]: Abstraction has has 183 places, 180 transitions, 473 flow [2021-12-06 22:28:27,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 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) [2021-12-06 22:28:27,886 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:28:27,886 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:27,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 22:28:27,886 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-06 22:28:27,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:27,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1054283516, now seen corresponding path program 1 times [2021-12-06 22:28:27,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:27,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679490434] [2021-12-06 22:28:27,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:27,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:28,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:28,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:28,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679490434] [2021-12-06 22:28:28,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679490434] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:28:28,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:28:28,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 22:28:28,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597080510] [2021-12-06 22:28:28,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:28:28,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 22:28:28,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:28,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 22:28:28,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 22:28:28,038 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 207 [2021-12-06 22:28:28,039 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 180 transitions, 473 flow. Second operand has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 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) [2021-12-06 22:28:28,039 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:28:28,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 207 [2021-12-06 22:28:28,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:28:28,544 INFO L129 PetriNetUnfolder]: 1018/2906 cut-off events. [2021-12-06 22:28:28,544 INFO L130 PetriNetUnfolder]: For 1384/1384 co-relation queries the response was YES. [2021-12-06 22:28:28,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5645 conditions, 2906 events. 1018/2906 cut-off events. For 1384/1384 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 22083 event pairs, 398 based on Foata normal form. 54/2671 useless extension candidates. Maximal degree in co-relation 5634. Up to 777 conditions per place. [2021-12-06 22:28:28,565 INFO L132 encePairwiseOnDemand]: 199/207 looper letters, 107 selfloop transitions, 8 changer transitions 0/246 dead transitions. [2021-12-06 22:28:28,565 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 246 transitions, 967 flow [2021-12-06 22:28:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:28:28,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-12-06 22:28:28,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1339 transitions. [2021-12-06 22:28:28,569 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8085748792270532 [2021-12-06 22:28:28,569 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1339 transitions. [2021-12-06 22:28:28,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1339 transitions. [2021-12-06 22:28:28,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:28:28,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1339 transitions. [2021-12-06 22:28:28,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 167.375) internal successors, (1339), 8 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 22:28:28,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 207.0) internal successors, (1863), 9 states have internal predecessors, (1863), 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) [2021-12-06 22:28:28,578 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 207.0) internal successors, (1863), 9 states have internal predecessors, (1863), 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) [2021-12-06 22:28:28,578 INFO L186 Difference]: Start difference. First operand has 183 places, 180 transitions, 473 flow. Second operand 8 states and 1339 transitions. [2021-12-06 22:28:28,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 246 transitions, 967 flow [2021-12-06 22:28:28,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 246 transitions, 961 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-12-06 22:28:28,585 INFO L242 Difference]: Finished difference. Result has 190 places, 185 transitions, 529 flow [2021-12-06 22:28:28,586 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=529, PETRI_PLACES=190, PETRI_TRANSITIONS=185} [2021-12-06 22:28:28,586 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 10 predicate places. [2021-12-06 22:28:28,586 INFO L470 AbstractCegarLoop]: Abstraction has has 190 places, 185 transitions, 529 flow [2021-12-06 22:28:28,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 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) [2021-12-06 22:28:28,587 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:28:28,587 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:28,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 22:28:28,587 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-06 22:28:28,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:28,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1131479502, now seen corresponding path program 1 times [2021-12-06 22:28:28,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:28,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137531615] [2021-12-06 22:28:28,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:28,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:28,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:28,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:28,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137531615] [2021-12-06 22:28:28,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137531615] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:28:28,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:28:28,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 22:28:28,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535284271] [2021-12-06 22:28:28,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:28:28,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 22:28:28,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:28,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 22:28:28,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 22:28:28,680 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 207 [2021-12-06 22:28:28,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 185 transitions, 529 flow. Second operand has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 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) [2021-12-06 22:28:28,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:28:28,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 207 [2021-12-06 22:28:28,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:28:29,072 INFO L129 PetriNetUnfolder]: 780/2319 cut-off events. [2021-12-06 22:28:29,085 INFO L130 PetriNetUnfolder]: For 1480/1480 co-relation queries the response was YES. [2021-12-06 22:28:29,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4776 conditions, 2319 events. 780/2319 cut-off events. For 1480/1480 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 16358 event pairs, 469 based on Foata normal form. 36/2134 useless extension candidates. Maximal degree in co-relation 4762. Up to 1057 conditions per place. [2021-12-06 22:28:29,107 INFO L132 encePairwiseOnDemand]: 199/207 looper letters, 49 selfloop transitions, 4 changer transitions 20/204 dead transitions. [2021-12-06 22:28:29,107 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 204 transitions, 738 flow [2021-12-06 22:28:29,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 22:28:29,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-12-06 22:28:29,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1155 transitions. [2021-12-06 22:28:29,110 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7971014492753623 [2021-12-06 22:28:29,110 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1155 transitions. [2021-12-06 22:28:29,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1155 transitions. [2021-12-06 22:28:29,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:28:29,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1155 transitions. [2021-12-06 22:28:29,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 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) [2021-12-06 22:28:29,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 207.0) internal successors, (1656), 8 states have internal predecessors, (1656), 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) [2021-12-06 22:28:29,117 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 207.0) internal successors, (1656), 8 states have internal predecessors, (1656), 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) [2021-12-06 22:28:29,117 INFO L186 Difference]: Start difference. First operand has 190 places, 185 transitions, 529 flow. Second operand 7 states and 1155 transitions. [2021-12-06 22:28:29,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 204 transitions, 738 flow [2021-12-06 22:28:29,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 204 transitions, 735 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 22:28:29,125 INFO L242 Difference]: Finished difference. Result has 196 places, 181 transitions, 508 flow [2021-12-06 22:28:29,125 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=508, PETRI_PLACES=196, PETRI_TRANSITIONS=181} [2021-12-06 22:28:29,126 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 16 predicate places. [2021-12-06 22:28:29,126 INFO L470 AbstractCegarLoop]: Abstraction has has 196 places, 181 transitions, 508 flow [2021-12-06 22:28:29,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 160.0) internal successors, (1120), 7 states have internal predecessors, (1120), 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) [2021-12-06 22:28:29,127 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:28:29,127 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:29,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 22:28:29,128 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-06 22:28:29,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:29,128 INFO L85 PathProgramCache]: Analyzing trace with hash -587263874, now seen corresponding path program 1 times [2021-12-06 22:28:29,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:29,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433698730] [2021-12-06 22:28:29,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:29,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:29,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:29,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:29,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433698730] [2021-12-06 22:28:29,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433698730] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:28:29,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574192741] [2021-12-06 22:28:29,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:29,249 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:29,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:28:29,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:28:29,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 22:28:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:29,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 22:28:29,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:28:29,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:29,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:28:29,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:29,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574192741] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:28:29,904 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:28:29,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2021-12-06 22:28:29,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192936346] [2021-12-06 22:28:29,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:28:29,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-06 22:28:29,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:29,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-06 22:28:29,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2021-12-06 22:28:29,910 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 207 [2021-12-06 22:28:29,914 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 181 transitions, 508 flow. Second operand has 19 states, 19 states have (on average 158.0) internal successors, (3002), 19 states have internal predecessors, (3002), 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) [2021-12-06 22:28:29,914 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:28:29,914 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 207 [2021-12-06 22:28:29,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:28:30,585 INFO L129 PetriNetUnfolder]: 1018/2909 cut-off events. [2021-12-06 22:28:30,585 INFO L130 PetriNetUnfolder]: For 2212/2212 co-relation queries the response was YES. [2021-12-06 22:28:30,596 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6340 conditions, 2909 events. 1018/2909 cut-off events. For 2212/2212 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 22115 event pairs, 400 based on Foata normal form. 54/2678 useless extension candidates. Maximal degree in co-relation 6324. Up to 775 conditions per place. [2021-12-06 22:28:30,612 INFO L132 encePairwiseOnDemand]: 193/207 looper letters, 105 selfloop transitions, 16 changer transitions 0/251 dead transitions. [2021-12-06 22:28:30,612 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 251 transitions, 1053 flow [2021-12-06 22:28:30,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 22:28:30,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 22:28:30,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2267 transitions. [2021-12-06 22:28:30,618 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.782263630089717 [2021-12-06 22:28:30,618 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2267 transitions. [2021-12-06 22:28:30,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2267 transitions. [2021-12-06 22:28:30,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:28:30,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2267 transitions. [2021-12-06 22:28:30,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 161.92857142857142) internal successors, (2267), 14 states have internal predecessors, (2267), 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) [2021-12-06 22:28:30,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 207.0) internal successors, (3105), 15 states have internal predecessors, (3105), 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) [2021-12-06 22:28:30,630 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 207.0) internal successors, (3105), 15 states have internal predecessors, (3105), 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) [2021-12-06 22:28:30,630 INFO L186 Difference]: Start difference. First operand has 196 places, 181 transitions, 508 flow. Second operand 14 states and 2267 transitions. [2021-12-06 22:28:30,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 251 transitions, 1053 flow [2021-12-06 22:28:30,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 251 transitions, 1013 flow, removed 11 selfloop flow, removed 9 redundant places. [2021-12-06 22:28:30,639 INFO L242 Difference]: Finished difference. Result has 202 places, 189 transitions, 581 flow [2021-12-06 22:28:30,639 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=581, PETRI_PLACES=202, PETRI_TRANSITIONS=189} [2021-12-06 22:28:30,640 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 22 predicate places. [2021-12-06 22:28:30,640 INFO L470 AbstractCegarLoop]: Abstraction has has 202 places, 189 transitions, 581 flow [2021-12-06 22:28:30,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 158.0) internal successors, (3002), 19 states have internal predecessors, (3002), 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) [2021-12-06 22:28:30,641 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:28:30,641 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:30,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:28:30,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:30,842 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-06 22:28:30,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:30,843 INFO L85 PathProgramCache]: Analyzing trace with hash -2110527098, now seen corresponding path program 1 times [2021-12-06 22:28:30,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:30,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734485342] [2021-12-06 22:28:30,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:30,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:30,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:30,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:30,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734485342] [2021-12-06 22:28:30,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734485342] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:28:30,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738613865] [2021-12-06 22:28:30,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:30,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:30,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:28:30,951 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:28:30,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 22:28:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:31,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 22:28:31,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:28:31,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:31,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:28:31,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:28:31,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738613865] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:28:31,534 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:28:31,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2021-12-06 22:28:31,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302629404] [2021-12-06 22:28:31,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:28:31,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-06 22:28:31,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:31,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-06 22:28:31,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2021-12-06 22:28:31,538 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 207 [2021-12-06 22:28:31,540 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 189 transitions, 581 flow. Second operand has 18 states, 18 states have (on average 158.22222222222223) internal successors, (2848), 18 states have internal predecessors, (2848), 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) [2021-12-06 22:28:31,540 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:28:31,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 207 [2021-12-06 22:28:31,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:28:32,056 INFO L129 PetriNetUnfolder]: 723/2424 cut-off events. [2021-12-06 22:28:32,057 INFO L130 PetriNetUnfolder]: For 1759/1759 co-relation queries the response was YES. [2021-12-06 22:28:32,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5063 conditions, 2424 events. 723/2424 cut-off events. For 1759/1759 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 17869 event pairs, 197 based on Foata normal form. 91/2310 useless extension candidates. Maximal degree in co-relation 5045. Up to 609 conditions per place. [2021-12-06 22:28:32,073 INFO L132 encePairwiseOnDemand]: 191/207 looper letters, 65 selfloop transitions, 14 changer transitions 20/229 dead transitions. [2021-12-06 22:28:32,073 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 229 transitions, 966 flow [2021-12-06 22:28:32,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 22:28:32,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 22:28:32,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2251 transitions. [2021-12-06 22:28:32,078 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7767425810904072 [2021-12-06 22:28:32,079 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2251 transitions. [2021-12-06 22:28:32,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2251 transitions. [2021-12-06 22:28:32,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:28:32,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2251 transitions. [2021-12-06 22:28:32,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 160.78571428571428) internal successors, (2251), 14 states have internal predecessors, (2251), 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) [2021-12-06 22:28:32,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 207.0) internal successors, (3105), 15 states have internal predecessors, (3105), 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) [2021-12-06 22:28:32,091 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 207.0) internal successors, (3105), 15 states have internal predecessors, (3105), 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) [2021-12-06 22:28:32,091 INFO L186 Difference]: Start difference. First operand has 202 places, 189 transitions, 581 flow. Second operand 14 states and 2251 transitions. [2021-12-06 22:28:32,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 229 transitions, 966 flow [2021-12-06 22:28:32,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 229 transitions, 949 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-12-06 22:28:32,097 INFO L242 Difference]: Finished difference. Result has 214 places, 187 transitions, 586 flow [2021-12-06 22:28:32,098 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=586, PETRI_PLACES=214, PETRI_TRANSITIONS=187} [2021-12-06 22:28:32,098 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 34 predicate places. [2021-12-06 22:28:32,098 INFO L470 AbstractCegarLoop]: Abstraction has has 214 places, 187 transitions, 586 flow [2021-12-06 22:28:32,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 158.22222222222223) internal successors, (2848), 18 states have internal predecessors, (2848), 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) [2021-12-06 22:28:32,099 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:28:32,100 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:32,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 22:28:32,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:32,302 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-06 22:28:32,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:32,303 INFO L85 PathProgramCache]: Analyzing trace with hash 211300924, now seen corresponding path program 2 times [2021-12-06 22:28:32,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:32,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597822349] [2021-12-06 22:28:32,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:32,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:32,525 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 22:28:32,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:32,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597822349] [2021-12-06 22:28:32,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597822349] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:28:32,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707076012] [2021-12-06 22:28:32,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 22:28:32,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:32,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:28:32,527 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:28:32,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 22:28:32,621 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 22:28:32,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:28:32,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 22:28:32,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:28:32,906 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 22:28:32,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:28:33,175 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 22:28:33,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707076012] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 22:28:33,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-06 22:28:33,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 18 [2021-12-06 22:28:33,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294713034] [2021-12-06 22:28:33,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:28:33,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 22:28:33,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:33,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 22:28:33,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2021-12-06 22:28:33,179 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 207 [2021-12-06 22:28:33,181 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 187 transitions, 586 flow. Second operand has 9 states, 9 states have (on average 159.22222222222223) internal successors, (1433), 9 states have internal predecessors, (1433), 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) [2021-12-06 22:28:33,181 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:28:33,181 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 207 [2021-12-06 22:28:33,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:28:33,470 INFO L129 PetriNetUnfolder]: 493/1507 cut-off events. [2021-12-06 22:28:33,470 INFO L130 PetriNetUnfolder]: For 1816/1816 co-relation queries the response was YES. [2021-12-06 22:28:33,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3751 conditions, 1507 events. 493/1507 cut-off events. For 1816/1816 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 9543 event pairs, 213 based on Foata normal form. 31/1408 useless extension candidates. Maximal degree in co-relation 3729. Up to 694 conditions per place. [2021-12-06 22:28:33,482 INFO L132 encePairwiseOnDemand]: 195/207 looper letters, 58 selfloop transitions, 11 changer transitions 0/199 dead transitions. [2021-12-06 22:28:33,483 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 199 transitions, 793 flow [2021-12-06 22:28:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 22:28:33,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 22:28:33,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1605 transitions. [2021-12-06 22:28:33,486 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7753623188405797 [2021-12-06 22:28:33,486 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1605 transitions. [2021-12-06 22:28:33,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1605 transitions. [2021-12-06 22:28:33,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:28:33,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1605 transitions. [2021-12-06 22:28:33,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 160.5) internal successors, (1605), 10 states have internal predecessors, (1605), 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) [2021-12-06 22:28:33,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 207.0) internal successors, (2277), 11 states have internal predecessors, (2277), 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) [2021-12-06 22:28:33,493 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 207.0) internal successors, (2277), 11 states have internal predecessors, (2277), 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) [2021-12-06 22:28:33,493 INFO L186 Difference]: Start difference. First operand has 214 places, 187 transitions, 586 flow. Second operand 10 states and 1605 transitions. [2021-12-06 22:28:33,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 199 transitions, 793 flow [2021-12-06 22:28:33,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 199 transitions, 740 flow, removed 17 selfloop flow, removed 14 redundant places. [2021-12-06 22:28:33,500 INFO L242 Difference]: Finished difference. Result has 207 places, 190 transitions, 595 flow [2021-12-06 22:28:33,500 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=595, PETRI_PLACES=207, PETRI_TRANSITIONS=190} [2021-12-06 22:28:33,501 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 27 predicate places. [2021-12-06 22:28:33,501 INFO L470 AbstractCegarLoop]: Abstraction has has 207 places, 190 transitions, 595 flow [2021-12-06 22:28:33,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 159.22222222222223) internal successors, (1433), 9 states have internal predecessors, (1433), 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) [2021-12-06 22:28:33,501 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:28:33,502 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:33,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 22:28:33,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-12-06 22:28:33,702 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-06 22:28:33,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:33,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1954702868, now seen corresponding path program 2 times [2021-12-06 22:28:33,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:33,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606289484] [2021-12-06 22:28:33,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:33,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:33,829 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 22:28:33,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:33,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606289484] [2021-12-06 22:28:33,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606289484] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:28:33,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934496923] [2021-12-06 22:28:33,830 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 22:28:33,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:33,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:28:33,831 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:28:33,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 22:28:33,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 22:28:33,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:28:33,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 22:28:33,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:28:34,165 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 22:28:34,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:28:34,376 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 22:28:34,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934496923] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 22:28:34,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-06 22:28:34,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 18 [2021-12-06 22:28:34,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153182834] [2021-12-06 22:28:34,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:28:34,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 22:28:34,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:34,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 22:28:34,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2021-12-06 22:28:34,379 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 207 [2021-12-06 22:28:34,380 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 190 transitions, 595 flow. Second operand has 9 states, 9 states have (on average 159.22222222222223) internal successors, (1433), 9 states have internal predecessors, (1433), 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) [2021-12-06 22:28:34,380 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:28:34,380 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 207 [2021-12-06 22:28:34,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:28:34,619 INFO L129 PetriNetUnfolder]: 419/1259 cut-off events. [2021-12-06 22:28:34,619 INFO L130 PetriNetUnfolder]: For 1220/1220 co-relation queries the response was YES. [2021-12-06 22:28:34,623 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3040 conditions, 1259 events. 419/1259 cut-off events. For 1220/1220 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 7352 event pairs, 165 based on Foata normal form. 38/1184 useless extension candidates. Maximal degree in co-relation 3021. Up to 542 conditions per place. [2021-12-06 22:28:34,628 INFO L132 encePairwiseOnDemand]: 197/207 looper letters, 74 selfloop transitions, 10 changer transitions 0/214 dead transitions. [2021-12-06 22:28:34,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 214 transitions, 886 flow [2021-12-06 22:28:34,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 22:28:34,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-12-06 22:28:34,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1611 transitions. [2021-12-06 22:28:34,632 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7782608695652173 [2021-12-06 22:28:34,632 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1611 transitions. [2021-12-06 22:28:34,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1611 transitions. [2021-12-06 22:28:34,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:28:34,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1611 transitions. [2021-12-06 22:28:34,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 161.1) internal successors, (1611), 10 states have internal predecessors, (1611), 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) [2021-12-06 22:28:34,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 207.0) internal successors, (2277), 11 states have internal predecessors, (2277), 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) [2021-12-06 22:28:34,639 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 207.0) internal successors, (2277), 11 states have internal predecessors, (2277), 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) [2021-12-06 22:28:34,639 INFO L186 Difference]: Start difference. First operand has 207 places, 190 transitions, 595 flow. Second operand 10 states and 1611 transitions. [2021-12-06 22:28:34,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 214 transitions, 886 flow [2021-12-06 22:28:34,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 214 transitions, 855 flow, removed 6 selfloop flow, removed 7 redundant places. [2021-12-06 22:28:34,645 INFO L242 Difference]: Finished difference. Result has 210 places, 191 transitions, 600 flow [2021-12-06 22:28:34,646 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=600, PETRI_PLACES=210, PETRI_TRANSITIONS=191} [2021-12-06 22:28:34,646 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 30 predicate places. [2021-12-06 22:28:34,646 INFO L470 AbstractCegarLoop]: Abstraction has has 210 places, 191 transitions, 600 flow [2021-12-06 22:28:34,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 159.22222222222223) internal successors, (1433), 9 states have internal predecessors, (1433), 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) [2021-12-06 22:28:34,647 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:28:34,648 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:34,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 22:28:34,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:34,848 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-06 22:28:34,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:34,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1907294439, now seen corresponding path program 1 times [2021-12-06 22:28:34,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:34,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328800899] [2021-12-06 22:28:34,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:34,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:35,119 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-06 22:28:35,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:35,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328800899] [2021-12-06 22:28:35,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328800899] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:28:35,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836740512] [2021-12-06 22:28:35,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:35,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:35,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:28:35,121 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:28:35,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 22:28:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:35,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 61 conjunts are in the unsatisfiable core [2021-12-06 22:28:35,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:28:35,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-12-06 22:28:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 22:28:35,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:28:35,928 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:28:35,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2021-12-06 22:28:35,943 INFO L354 Elim1Store]: treesize reduction 11, result has 26.7 percent of original size [2021-12-06 22:28:35,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 11 [2021-12-06 22:28:36,081 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-06 22:28:36,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836740512] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:28:36,081 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:28:36,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 10] total 24 [2021-12-06 22:28:36,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933252487] [2021-12-06 22:28:36,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:28:36,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-06 22:28:36,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:36,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-06 22:28:36,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-12-06 22:28:36,086 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 207 [2021-12-06 22:28:36,089 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 191 transitions, 600 flow. Second operand has 24 states, 24 states have (on average 117.04166666666667) internal successors, (2809), 24 states have internal predecessors, (2809), 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) [2021-12-06 22:28:36,089 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:28:36,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 207 [2021-12-06 22:28:36,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:28:38,501 INFO L129 PetriNetUnfolder]: 5301/10733 cut-off events. [2021-12-06 22:28:38,501 INFO L130 PetriNetUnfolder]: For 12109/12109 co-relation queries the response was YES. [2021-12-06 22:28:38,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28340 conditions, 10733 events. 5301/10733 cut-off events. For 12109/12109 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 89741 event pairs, 1137 based on Foata normal form. 2/10094 useless extension candidates. Maximal degree in co-relation 28320. Up to 3397 conditions per place. [2021-12-06 22:28:38,593 INFO L132 encePairwiseOnDemand]: 183/207 looper letters, 281 selfloop transitions, 81 changer transitions 8/462 dead transitions. [2021-12-06 22:28:38,593 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 462 transitions, 2487 flow [2021-12-06 22:28:38,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-06 22:28:38,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-12-06 22:28:38,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3799 transitions. [2021-12-06 22:28:38,601 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5920211937042231 [2021-12-06 22:28:38,601 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 3799 transitions. [2021-12-06 22:28:38,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 3799 transitions. [2021-12-06 22:28:38,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:28:38,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 3799 transitions. [2021-12-06 22:28:38,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 122.54838709677419) internal successors, (3799), 31 states have internal predecessors, (3799), 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) [2021-12-06 22:28:38,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 207.0) internal successors, (6624), 32 states have internal predecessors, (6624), 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) [2021-12-06 22:28:38,617 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 207.0) internal successors, (6624), 32 states have internal predecessors, (6624), 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) [2021-12-06 22:28:38,617 INFO L186 Difference]: Start difference. First operand has 210 places, 191 transitions, 600 flow. Second operand 31 states and 3799 transitions. [2021-12-06 22:28:38,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 462 transitions, 2487 flow [2021-12-06 22:28:38,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 462 transitions, 2454 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-12-06 22:28:38,642 INFO L242 Difference]: Finished difference. Result has 248 places, 260 transitions, 1259 flow [2021-12-06 22:28:38,642 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1259, PETRI_PLACES=248, PETRI_TRANSITIONS=260} [2021-12-06 22:28:38,643 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 68 predicate places. [2021-12-06 22:28:38,643 INFO L470 AbstractCegarLoop]: Abstraction has has 248 places, 260 transitions, 1259 flow [2021-12-06 22:28:38,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 117.04166666666667) internal successors, (2809), 24 states have internal predecessors, (2809), 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) [2021-12-06 22:28:38,644 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:28:38,644 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:38,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 22:28:38,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 22:28:38,846 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-06 22:28:38,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:38,847 INFO L85 PathProgramCache]: Analyzing trace with hash 756627477, now seen corresponding path program 2 times [2021-12-06 22:28:38,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:38,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882721765] [2021-12-06 22:28:38,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:38,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:39,150 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-06 22:28:39,150 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:39,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882721765] [2021-12-06 22:28:39,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882721765] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:28:39,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718163916] [2021-12-06 22:28:39,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 22:28:39,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:39,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:28:39,151 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:28:39,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 22:28:39,253 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 22:28:39,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:28:39,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 66 conjunts are in the unsatisfiable core [2021-12-06 22:28:39,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:28:39,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 22:28:39,404 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 22:28:39,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-12-06 22:28:39,434 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 22:28:39,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-06 22:28:39,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 22:28:39,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-06 22:28:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-06 22:28:39,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:28:40,024 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_383 (Array Int Int))) (= c_~s_2~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_383) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) is different from false [2021-12-06 22:28:40,047 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_383 (Array Int Int))) (= (+ c_~s_2~0 c_~t_4~0) (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_383) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) is different from false [2021-12-06 22:28:40,055 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:28:40,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 39 [2021-12-06 22:28:40,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 22:28:40,323 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 1 not checked. [2021-12-06 22:28:40,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718163916] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:28:40,323 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:28:40,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 37 [2021-12-06 22:28:40,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417485800] [2021-12-06 22:28:40,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:28:40,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-12-06 22:28:40,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:40,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-12-06 22:28:40,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1096, Unknown=2, NotChecked=134, Total=1332 [2021-12-06 22:28:40,328 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 207 [2021-12-06 22:28:40,331 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 260 transitions, 1259 flow. Second operand has 37 states, 37 states have (on average 106.27027027027027) internal successors, (3932), 37 states have internal predecessors, (3932), 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) [2021-12-06 22:28:40,331 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:28:40,331 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 207 [2021-12-06 22:28:40,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:28:45,718 INFO L129 PetriNetUnfolder]: 13661/26464 cut-off events. [2021-12-06 22:28:45,718 INFO L130 PetriNetUnfolder]: For 74906/75002 co-relation queries the response was YES. [2021-12-06 22:28:45,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87268 conditions, 26464 events. 13661/26464 cut-off events. For 74906/75002 co-relation queries the response was YES. Maximal size of possible extension queue 1432. Compared 245633 event pairs, 1369 based on Foata normal form. 78/24901 useless extension candidates. Maximal degree in co-relation 87232. Up to 7833 conditions per place. [2021-12-06 22:28:46,002 INFO L132 encePairwiseOnDemand]: 178/207 looper letters, 408 selfloop transitions, 255 changer transitions 4/760 dead transitions. [2021-12-06 22:28:46,003 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 760 transitions, 5837 flow [2021-12-06 22:28:46,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-12-06 22:28:46,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-12-06 22:28:46,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 4127 transitions. [2021-12-06 22:28:46,008 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5538110574342459 [2021-12-06 22:28:46,008 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 4127 transitions. [2021-12-06 22:28:46,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 4127 transitions. [2021-12-06 22:28:46,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:28:46,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 4127 transitions. [2021-12-06 22:28:46,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 114.63888888888889) internal successors, (4127), 36 states have internal predecessors, (4127), 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) [2021-12-06 22:28:46,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 207.0) internal successors, (7659), 37 states have internal predecessors, (7659), 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) [2021-12-06 22:28:46,025 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 207.0) internal successors, (7659), 37 states have internal predecessors, (7659), 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) [2021-12-06 22:28:46,025 INFO L186 Difference]: Start difference. First operand has 248 places, 260 transitions, 1259 flow. Second operand 36 states and 4127 transitions. [2021-12-06 22:28:46,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 760 transitions, 5837 flow [2021-12-06 22:28:46,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 760 transitions, 5640 flow, removed 86 selfloop flow, removed 14 redundant places. [2021-12-06 22:28:46,434 INFO L242 Difference]: Finished difference. Result has 289 places, 518 transitions, 4417 flow [2021-12-06 22:28:46,435 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=1192, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=4417, PETRI_PLACES=289, PETRI_TRANSITIONS=518} [2021-12-06 22:28:46,435 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 109 predicate places. [2021-12-06 22:28:46,435 INFO L470 AbstractCegarLoop]: Abstraction has has 289 places, 518 transitions, 4417 flow [2021-12-06 22:28:46,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 106.27027027027027) internal successors, (3932), 37 states have internal predecessors, (3932), 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) [2021-12-06 22:28:46,436 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:28:46,436 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:28:46,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 22:28:46,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-06 22:28:46,638 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-06 22:28:46,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:28:46,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1962673649, now seen corresponding path program 3 times [2021-12-06 22:28:46,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:28:46,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218578413] [2021-12-06 22:28:46,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:28:46,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:28:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:28:47,015 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-06 22:28:47,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:28:47,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218578413] [2021-12-06 22:28:47,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218578413] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:28:47,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132192345] [2021-12-06 22:28:47,015 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 22:28:47,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:28:47,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:28:47,017 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:28:47,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 22:28:47,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-12-06 22:28:47,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:28:47,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 66 conjunts are in the unsatisfiable core [2021-12-06 22:28:47,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:28:47,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 22:28:47,319 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 22:28:47,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-06 22:28:47,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 22:28:47,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 22:28:47,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 22:28:47,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-06 22:28:47,713 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-06 22:28:47,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:28:47,856 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_434 (Array Int Int))) (<= c_~s_6~0 (+ c_~s_2~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_3~0 4) 4))))) (forall ((v_ArrVal_434 (Array Int Int))) (< (+ c_~s_2~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_3~0 4) 4))) (+ c_~s_6~0 1)))) is different from false [2021-12-06 22:28:47,887 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_434 (Array Int Int)) (v_ArrVal_433 (Array Int Int))) (<= c_~s_6~0 (+ c_~s_2~0 (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_433) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_3~0 4) 4))))) (forall ((v_ArrVal_434 (Array Int Int)) (v_ArrVal_433 (Array Int Int))) (< (+ c_~s_2~0 (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_433) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_3~0 4) 4))) (+ c_~s_6~0 1)))) is different from false [2021-12-06 22:28:47,905 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_434 (Array Int Int)) (v_ArrVal_433 (Array Int Int))) (<= c_~s_6~0 (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_433) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) (forall ((v_ArrVal_434 (Array Int Int)) (v_ArrVal_433 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_433) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 1)))) is different from false [2021-12-06 22:28:47,931 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_434 (Array Int Int)) (v_ArrVal_433 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_433) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 c_~t_8~0 1))) (forall ((v_ArrVal_434 (Array Int Int)) (v_ArrVal_433 (Array Int Int))) (<= (+ c_~s_6~0 c_~t_8~0) (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_433) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_434) c_~X_0~0.base) (+ c_~X_0~0.offset 4))))) is different from false [2021-12-06 22:28:47,940 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:28:47,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 218 treesize of output 149 [2021-12-06 22:28:47,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 59 [2021-12-06 22:28:47,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 110 [2021-12-06 22:28:48,021 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 22:28:48,022 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 22:28:48,025 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:28:48,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 22 [2021-12-06 22:28:48,501 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 1 not checked. [2021-12-06 22:28:48,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132192345] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:28:48,501 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:28:48,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 46 [2021-12-06 22:28:48,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569718350] [2021-12-06 22:28:48,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:28:48,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-12-06 22:28:48,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:28:48,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-12-06 22:28:48,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=1597, Unknown=4, NotChecked=332, Total=2070 [2021-12-06 22:28:48,506 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 207 [2021-12-06 22:28:48,509 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 518 transitions, 4417 flow. Second operand has 46 states, 46 states have (on average 104.8695652173913) internal successors, (4824), 46 states have internal predecessors, (4824), 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) [2021-12-06 22:28:48,509 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:28:48,509 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 207 [2021-12-06 22:28:48,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:29:00,594 INFO L129 PetriNetUnfolder]: 28668/54326 cut-off events. [2021-12-06 22:29:00,594 INFO L130 PetriNetUnfolder]: For 569014/570385 co-relation queries the response was YES. [2021-12-06 22:29:01,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300758 conditions, 54326 events. 28668/54326 cut-off events. For 569014/570385 co-relation queries the response was YES. Maximal size of possible extension queue 3148. Compared 554383 event pairs, 3322 based on Foata normal form. 515/51559 useless extension candidates. Maximal degree in co-relation 300702. Up to 15164 conditions per place. [2021-12-06 22:29:01,582 INFO L132 encePairwiseOnDemand]: 172/207 looper letters, 1095 selfloop transitions, 392 changer transitions 8/1587 dead transitions. [2021-12-06 22:29:01,582 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 1587 transitions, 18728 flow [2021-12-06 22:29:01,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-12-06 22:29:01,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-12-06 22:29:01,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3323 transitions. [2021-12-06 22:29:01,587 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5535565550558055 [2021-12-06 22:29:01,587 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 3323 transitions. [2021-12-06 22:29:01,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 3323 transitions. [2021-12-06 22:29:01,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:29:01,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 3323 transitions. [2021-12-06 22:29:01,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 114.58620689655173) internal successors, (3323), 29 states have internal predecessors, (3323), 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) [2021-12-06 22:29:01,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 207.0) internal successors, (6210), 30 states have internal predecessors, (6210), 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) [2021-12-06 22:29:01,599 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 207.0) internal successors, (6210), 30 states have internal predecessors, (6210), 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) [2021-12-06 22:29:01,599 INFO L186 Difference]: Start difference. First operand has 289 places, 518 transitions, 4417 flow. Second operand 29 states and 3323 transitions. [2021-12-06 22:29:01,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 1587 transitions, 18728 flow [2021-12-06 22:29:08,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 1587 transitions, 17260 flow, removed 722 selfloop flow, removed 9 redundant places. [2021-12-06 22:29:08,398 INFO L242 Difference]: Finished difference. Result has 324 places, 841 transitions, 9215 flow [2021-12-06 22:29:08,398 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=4017, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=518, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=9215, PETRI_PLACES=324, PETRI_TRANSITIONS=841} [2021-12-06 22:29:08,399 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 144 predicate places. [2021-12-06 22:29:08,399 INFO L470 AbstractCegarLoop]: Abstraction has has 324 places, 841 transitions, 9215 flow [2021-12-06 22:29:08,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 104.8695652173913) internal successors, (4824), 46 states have internal predecessors, (4824), 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) [2021-12-06 22:29:08,399 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:29:08,400 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:29:08,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 22:29:08,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:29:08,601 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-06 22:29:08,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:29:08,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1232389761, now seen corresponding path program 4 times [2021-12-06 22:29:08,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:29:08,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764618420] [2021-12-06 22:29:08,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:29:08,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:29:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:29:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-06 22:29:08,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:29:08,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764618420] [2021-12-06 22:29:08,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764618420] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:29:08,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765337349] [2021-12-06 22:29:08,914 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-06 22:29:08,914 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:29:08,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:29:08,914 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:29:08,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 22:29:09,007 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-06 22:29:09,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:29:09,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 74 conjunts are in the unsatisfiable core [2021-12-06 22:29:09,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:29:09,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 22:29:09,176 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-12-06 22:29:09,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-12-06 22:29:09,198 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 22:29:09,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-06 22:29:09,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 22:29:09,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-06 22:29:09,476 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 22:29:09,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:29:09,662 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_485 (Array Int Int))) (= (+ c_~s_2~0 c_~t_4~0) (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_485) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) is different from false [2021-12-06 22:29:09,674 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:29:09,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 39 [2021-12-06 22:29:09,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-06 22:29:09,876 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-06 22:29:09,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765337349] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:29:09,876 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:29:09,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 17] total 39 [2021-12-06 22:29:09,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036371101] [2021-12-06 22:29:09,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:29:09,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-12-06 22:29:09,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:29:09,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-12-06 22:29:09,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1300, Unknown=1, NotChecked=72, Total=1482 [2021-12-06 22:29:09,880 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 207 [2021-12-06 22:29:09,882 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 841 transitions, 9215 flow. Second operand has 39 states, 39 states have (on average 100.7948717948718) internal successors, (3931), 39 states have internal predecessors, (3931), 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) [2021-12-06 22:29:09,882 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:29:09,882 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 207 [2021-12-06 22:29:09,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:29:26,987 INFO L129 PetriNetUnfolder]: 34570/65045 cut-off events. [2021-12-06 22:29:26,987 INFO L130 PetriNetUnfolder]: For 952474/953657 co-relation queries the response was YES. [2021-12-06 22:29:27,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 428085 conditions, 65045 events. 34570/65045 cut-off events. For 952474/953657 co-relation queries the response was YES. Maximal size of possible extension queue 3816. Compared 674562 event pairs, 1883 based on Foata normal form. 580/61686 useless extension candidates. Maximal degree in co-relation 428012. Up to 26305 conditions per place. [2021-12-06 22:29:28,293 INFO L132 encePairwiseOnDemand]: 181/207 looper letters, 866 selfloop transitions, 553 changer transitions 5/1513 dead transitions. [2021-12-06 22:29:28,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 1513 transitions, 21980 flow [2021-12-06 22:29:28,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-12-06 22:29:28,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2021-12-06 22:29:28,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 4251 transitions. [2021-12-06 22:29:28,298 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5134057971014493 [2021-12-06 22:29:28,298 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 4251 transitions. [2021-12-06 22:29:28,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 4251 transitions. [2021-12-06 22:29:28,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:29:28,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 4251 transitions. [2021-12-06 22:29:28,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 106.275) internal successors, (4251), 40 states have internal predecessors, (4251), 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) [2021-12-06 22:29:28,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 207.0) internal successors, (8487), 41 states have internal predecessors, (8487), 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) [2021-12-06 22:29:28,311 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 207.0) internal successors, (8487), 41 states have internal predecessors, (8487), 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) [2021-12-06 22:29:28,311 INFO L186 Difference]: Start difference. First operand has 324 places, 841 transitions, 9215 flow. Second operand 40 states and 4251 transitions. [2021-12-06 22:29:28,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 1513 transitions, 21980 flow [2021-12-06 22:29:33,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 1513 transitions, 20763 flow, removed 601 selfloop flow, removed 10 redundant places. [2021-12-06 22:29:33,782 INFO L242 Difference]: Finished difference. Result has 369 places, 1043 transitions, 13652 flow [2021-12-06 22:29:33,783 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=8848, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=841, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=368, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=13652, PETRI_PLACES=369, PETRI_TRANSITIONS=1043} [2021-12-06 22:29:33,784 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 189 predicate places. [2021-12-06 22:29:33,784 INFO L470 AbstractCegarLoop]: Abstraction has has 369 places, 1043 transitions, 13652 flow [2021-12-06 22:29:33,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 100.7948717948718) internal successors, (3931), 39 states have internal predecessors, (3931), 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) [2021-12-06 22:29:33,784 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:29:33,784 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:29:33,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-06 22:29:33,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-06 22:29:33,986 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-06 22:29:33,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:29:33,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1192460112, now seen corresponding path program 1 times [2021-12-06 22:29:33,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:29:33,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658971206] [2021-12-06 22:29:33,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:29:33,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:29:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:29:34,326 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-06 22:29:34,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:29:34,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658971206] [2021-12-06 22:29:34,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658971206] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:29:34,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714235413] [2021-12-06 22:29:34,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:29:34,327 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:29:34,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:29:34,327 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:29:34,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 22:29:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:29:34,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 74 conjunts are in the unsatisfiable core [2021-12-06 22:29:34,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:29:34,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 22:29:34,615 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 22:29:34,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-06 22:29:34,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 22:29:34,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 22:29:34,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 22:29:34,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-06 22:29:34,961 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 22:29:34,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:29:35,089 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_536 (Array Int Int))) (< (+ c_~s_2~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_3~0 4) 4))) (+ c_~s_6~0 1))) (forall ((v_ArrVal_536 (Array Int Int))) (<= c_~s_6~0 (+ c_~s_2~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_3~0 4) 4)))))) is different from false [2021-12-06 22:29:35,117 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (< (+ (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_3~0 4) 4)) c_~s_2~0) (+ c_~s_6~0 1))) (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (<= c_~s_6~0 (+ (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_3~0 4) 4)) c_~s_2~0)))) is different from false [2021-12-06 22:29:35,134 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (<= c_~s_6~0 (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 1)))) is different from false [2021-12-06 22:29:35,152 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_thread1Thread1of1ForFork3_~#t3~0.base_36| Int)) (or (and (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |v_thread1Thread1of1ForFork3_~#t3~0.base_36| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 1))) (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (<= c_~s_6~0 (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |v_thread1Thread1of1ForFork3_~#t3~0.base_36| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset 4))))) (<= |v_thread1Thread1of1ForFork3_~#t3~0.base_36| |c_#StackHeapBarrier|))) is different from false [2021-12-06 22:29:35,222 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_thread1Thread1of1ForFork3_~#t3~0.base_36| Int)) (or (and (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (<= (+ c_~s_6~0 c_~t_8~0) (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |v_thread1Thread1of1ForFork3_~#t3~0.base_36| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |v_thread1Thread1of1ForFork3_~#t3~0.base_36| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 c_~t_8~0 1)))) (<= |v_thread1Thread1of1ForFork3_~#t3~0.base_36| |c_#StackHeapBarrier|))) is different from false [2021-12-06 22:29:35,234 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:29:35,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 331 treesize of output 221 [2021-12-06 22:29:35,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 205 treesize of output 189 [2021-12-06 22:29:35,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 181 [2021-12-06 22:29:35,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 173 [2021-12-06 22:29:35,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 169 [2021-12-06 22:29:35,823 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 1 not checked. [2021-12-06 22:29:35,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714235413] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:29:35,823 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:29:35,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21, 19] total 48 [2021-12-06 22:29:35,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621683335] [2021-12-06 22:29:35,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:29:35,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-12-06 22:29:35,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:29:35,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-12-06 22:29:35,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1671, Unknown=5, NotChecked=430, Total=2256 [2021-12-06 22:29:35,828 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 207 [2021-12-06 22:29:35,831 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 1043 transitions, 13652 flow. Second operand has 48 states, 48 states have (on average 99.20833333333333) internal successors, (4762), 48 states have internal predecessors, (4762), 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) [2021-12-06 22:29:35,831 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:29:35,831 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 207 [2021-12-06 22:29:35,831 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:32:08,764 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int| c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_7~0 4))))) (and (= c_~X_0~0.offset 0) (not (= |c_thread1Thread1of1ForFork3_~#t2~0.base| c_~X_0~0.base)) (< |c_ULTIMATE.start_create_fresh_int_array_#res#1.base| |c_#StackHeapBarrier|) (<= (+ c_~X_0~0.base 1) |c_#StackHeapBarrier|) (<= (+ |c_ULTIMATE.start_create_fresh_int_array_#res#1.base| 1) |c_#StackHeapBarrier|) (= (+ c_~X_0~0.offset (* 4 c_~i_7~0)) 4) (= (select |c_#valid| |c_ULTIMATE.start_create_fresh_int_array_#res#1.base|) 1) (<= .cse0 c_~s_6~0) (<= c_~s_6~0 .cse0) (forall ((|v_thread1Thread1of1ForFork3_~#t3~0.base_36| Int)) (or (and (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |v_thread1Thread1of1ForFork3_~#t3~0.base_36| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 1))) (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (<= c_~s_6~0 (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |v_thread1Thread1of1ForFork3_~#t3~0.base_36| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset 4))))) (<= |v_thread1Thread1of1ForFork3_~#t3~0.base_36| |c_#StackHeapBarrier|))) (<= (+ |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| 1) |c_#StackHeapBarrier|) (= (select |c_#valid| c_~X_0~0.base) 1) (= |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| 0) (= 0 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) (< c_~X_0~0.base |c_#StackHeapBarrier|))) is different from false [2021-12-06 22:32:11,081 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int| c_~X_0~0.base) 4))) (and (= c_~X_0~0.offset 0) (<= c_~s_6~0 .cse0) (not (= |c_thread1Thread1of1ForFork3_~#t2~0.base| c_~X_0~0.base)) (<= (+ c_~X_0~0.base 1) |c_#StackHeapBarrier|) (forall ((|v_thread1Thread1of1ForFork3_~#t3~0.base_36| Int)) (or (and (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |v_thread1Thread1of1ForFork3_~#t3~0.base_36| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 1))) (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (<= c_~s_6~0 (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |v_thread1Thread1of1ForFork3_~#t3~0.base_36| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset 4))))) (<= |v_thread1Thread1of1ForFork3_~#t3~0.base_36| |c_#StackHeapBarrier|))) (<= .cse0 c_~s_6~0))) is different from false [2021-12-06 22:32:42,146 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_thread1Thread1of1ForFork3_~#t3~0.base_36| Int)) (or (and (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (<= (+ c_~s_6~0 c_~t_8~0) (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |v_thread1Thread1of1ForFork3_~#t3~0.base_36| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset 4)))) (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |v_thread1Thread1of1ForFork3_~#t3~0.base_36| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 c_~t_8~0 1)))) (<= |v_thread1Thread1of1ForFork3_~#t3~0.base_36| |c_#StackHeapBarrier|))) (= c_~X_0~0.offset 0) (not (= |c_thread1Thread1of1ForFork3_~#t2~0.base| c_~X_0~0.base)) (<= (+ c_~X_0~0.base 1) |c_#StackHeapBarrier|) (<= (+ |c_ULTIMATE.start_create_fresh_int_array_#res#1.base| 1) |c_#StackHeapBarrier|) (= (select (select |c_#memory_int| c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_7~0 4))) c_~t_8~0) (= (+ c_~X_0~0.offset (* 4 c_~i_7~0)) 4) (= c_~s_6~0 0) (<= (+ |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| 1) |c_#StackHeapBarrier|) (= (select |c_#valid| c_~X_0~0.base) 1) (= |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.offset| 0) (= 0 |c_ULTIMATE.start_create_fresh_int_array_#res#1.offset|) (< c_~X_0~0.base |c_#StackHeapBarrier|)) is different from false [2021-12-06 22:32:46,281 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int| c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_7~0 4))))) (and (= c_~X_0~0.offset 0) (not (= |c_thread1Thread1of1ForFork3_~#t2~0.base| c_~X_0~0.base)) (<= (+ c_~X_0~0.base 1) |c_#StackHeapBarrier|) (= (+ c_~X_0~0.offset (* 4 c_~i_7~0)) 4) (<= .cse0 c_~s_6~0) (<= c_~s_6~0 .cse0) (forall ((|v_thread1Thread1of1ForFork3_~#t3~0.base_36| Int)) (or (and (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |v_thread1Thread1of1ForFork3_~#t3~0.base_36| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset 4)) (+ c_~s_6~0 1))) (forall ((v_ArrVal_535 (Array Int Int)) (v_ArrVal_536 (Array Int Int))) (<= c_~s_6~0 (select (select (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_535) |v_thread1Thread1of1ForFork3_~#t3~0.base_36| v_ArrVal_536) c_~X_0~0.base) (+ c_~X_0~0.offset 4))))) (<= |v_thread1Thread1of1ForFork3_~#t3~0.base_36| |c_#StackHeapBarrier|))))) is different from false [2021-12-06 22:32:50,254 INFO L129 PetriNetUnfolder]: 64629/126275 cut-off events. [2021-12-06 22:32:50,254 INFO L130 PetriNetUnfolder]: For 2097264/2101054 co-relation queries the response was YES. [2021-12-06 22:32:52,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 853711 conditions, 126275 events. 64629/126275 cut-off events. For 2097264/2101054 co-relation queries the response was YES. Maximal size of possible extension queue 7224. Compared 1473392 event pairs, 8668 based on Foata normal form. 917/119260 useless extension candidates. Maximal degree in co-relation 853622. Up to 48615 conditions per place. [2021-12-06 22:32:53,550 INFO L132 encePairwiseOnDemand]: 166/207 looper letters, 1742 selfloop transitions, 613 changer transitions 12/2447 dead transitions. [2021-12-06 22:32:53,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 2447 transitions, 37615 flow [2021-12-06 22:32:53,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-12-06 22:32:53,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2021-12-06 22:32:53,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 4264 transitions. [2021-12-06 22:32:53,555 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.514975845410628 [2021-12-06 22:32:53,555 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 4264 transitions. [2021-12-06 22:32:53,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 4264 transitions. [2021-12-06 22:32:53,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:32:53,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 4264 transitions. [2021-12-06 22:32:53,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 106.6) internal successors, (4264), 40 states have internal predecessors, (4264), 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) [2021-12-06 22:32:53,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 207.0) internal successors, (8487), 41 states have internal predecessors, (8487), 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) [2021-12-06 22:32:53,568 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 207.0) internal successors, (8487), 41 states have internal predecessors, (8487), 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) [2021-12-06 22:32:53,568 INFO L186 Difference]: Start difference. First operand has 369 places, 1043 transitions, 13652 flow. Second operand 40 states and 4264 transitions. [2021-12-06 22:32:53,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 2447 transitions, 37615 flow [2021-12-06 22:33:17,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 2447 transitions, 36255 flow, removed 506 selfloop flow, removed 19 redundant places. [2021-12-06 22:33:17,587 INFO L242 Difference]: Finished difference. Result has 411 places, 1434 transitions, 21339 flow [2021-12-06 22:33:17,587 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=13034, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1043, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=246, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=625, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=21339, PETRI_PLACES=411, PETRI_TRANSITIONS=1434} [2021-12-06 22:33:17,588 INFO L334 CegarLoopForPetriNet]: 180 programPoint places, 231 predicate places. [2021-12-06 22:33:17,588 INFO L470 AbstractCegarLoop]: Abstraction has has 411 places, 1434 transitions, 21339 flow [2021-12-06 22:33:17,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 99.20833333333333) internal successors, (4762), 48 states have internal predecessors, (4762), 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) [2021-12-06 22:33:17,588 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 22:33:17,589 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:33:17,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-06 22:33:17,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:33:17,791 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-12-06 22:33:17,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:33:17,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1563986770, now seen corresponding path program 2 times [2021-12-06 22:33:17,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:33:17,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468618620] [2021-12-06 22:33:17,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:33:17,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:33:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:33:18,080 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-06 22:33:18,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:33:18,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468618620] [2021-12-06 22:33:18,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468618620] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:33:18,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486261709] [2021-12-06 22:33:18,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 22:33:18,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:33:18,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:33:18,081 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:33:18,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495c515c-2f4f-44a2-873b-8b3e72594066/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 22:33:18,183 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 22:33:18,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 22:33:18,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 82 conjunts are in the unsatisfiable core [2021-12-06 22:33:18,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:33:18,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 22:33:18,447 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-12-06 22:33:18,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-12-06 22:33:18,456 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-12-06 22:33:18,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-12-06 22:33:18,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2021-12-06 22:33:18,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-12-06 22:33:18,762 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:33:18,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:33:18,930 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_587 (Array Int Int))) (< (+ c_~s_2~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_587) c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_3~0 4) 4))) (+ c_~s_6~0 c_~t_8~0 1))) (forall ((v_ArrVal_587 (Array Int Int))) (<= (+ c_~s_6~0 c_~t_8~0) (+ c_~s_2~0 (select (select (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_587) c_~X_0~0.base) (+ c_~X_0~0.offset (* c_~i_3~0 4) 4)))))) is different from false [2021-12-06 22:33:18,955 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:33:18,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 49 [2021-12-06 22:33:18,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11 [2021-12-06 22:33:18,972 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 22:33:18,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 22:33:18,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 5 [2021-12-06 22:33:19,412 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:33:19,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486261709] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 22:33:19,413 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 22:33:19,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23, 24] total 52 [2021-12-06 22:33:19,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570041509] [2021-12-06 22:33:19,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 22:33:19,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-12-06 22:33:19,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:33:19,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-12-06 22:33:19,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=2331, Unknown=1, NotChecked=98, Total=2652 [2021-12-06 22:33:19,418 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 207 [2021-12-06 22:33:19,420 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 1434 transitions, 21339 flow. Second operand has 52 states, 52 states have (on average 98.98076923076923) internal successors, (5147), 52 states have internal predecessors, (5147), 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) [2021-12-06 22:33:19,420 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 22:33:19,420 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 207 [2021-12-06 22:33:19,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 22:34:51,896 INFO L129 PetriNetUnfolder]: 137859/269059 cut-off events. [2021-12-06 22:34:51,896 INFO L130 PetriNetUnfolder]: For 6678011/6688166 co-relation queries the response was YES. [2021-12-06 22:34:58,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2210103 conditions, 269059 events. 137859/269059 cut-off events. For 6678011/6688166 co-relation queries the response was YES. Maximal size of possible extension queue 12997. Compared 3420314 event pairs, 13892 based on Foata normal form. 1302/253361 useless extension candidates. Maximal degree in co-relation 2209992. Up to 117249 conditions per place. [2021-12-06 22:35:01,197 INFO L132 encePairwiseOnDemand]: 180/207 looper letters, 2687 selfloop transitions, 419 changer transitions 14/3230 dead transitions. [2021-12-06 22:35:01,197 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 3230 transitions, 57404 flow [2021-12-06 22:35:01,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-12-06 22:35:01,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-12-06 22:35:01,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 4896 transitions. [2021-12-06 22:35:01,205 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5032377428307123 [2021-12-06 22:35:01,205 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 4896 transitions. [2021-12-06 22:35:01,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 4896 transitions. [2021-12-06 22:35:01,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 22:35:01,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 4896 transitions. [2021-12-06 22:35:01,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 104.17021276595744) internal successors, (4896), 47 states have internal predecessors, (4896), 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) [2021-12-06 22:35:01,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 207.0) internal successors, (9936), 48 states have internal predecessors, (9936), 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) [2021-12-06 22:35:01,227 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 207.0) internal successors, (9936), 48 states have internal predecessors, (9936), 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) [2021-12-06 22:35:01,227 INFO L186 Difference]: Start difference. First operand has 411 places, 1434 transitions, 21339 flow. Second operand 47 states and 4896 transitions. [2021-12-06 22:35:01,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 3230 transitions, 57404 flow