./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ --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 a6d0914923ba77f2cbf67d52dc6ec759519359118cb2f8fd5f254f95bf2b938e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:10:30,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:10:30,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:10:30,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:10:30,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:10:30,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:10:30,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:10:30,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:10:30,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:10:30,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:10:30,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:10:30,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:10:30,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:10:30,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:10:30,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:10:30,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:10:30,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:10:30,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:10:30,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:10:30,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:10:30,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:10:30,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:10:30,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:10:30,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:10:30,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:10:30,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:10:30,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:10:30,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:10:30,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:10:30,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:10:30,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:10:30,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:10:30,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:10:30,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:10:30,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:10:30,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:10:30,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:10:30,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:10:30,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:10:30,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:10:30,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:10:30,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:10:30,401 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:10:30,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:10:30,402 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:10:30,402 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:10:30,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:10:30,403 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:10:30,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:10:30,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:10:30,404 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:10:30,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:10:30,405 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:10:30,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:10:30,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:10:30,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:10:30,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:10:30,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:10:30,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:10:30,406 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:10:30,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:10:30,406 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:10:30,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:10:30,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:10:30,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:10:30,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:10:30,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:10:30,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:10:30,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:10:30,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:10:30,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:10:30,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:10:30,409 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:10:30,409 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:10:30,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:10:30,410 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_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6d0914923ba77f2cbf67d52dc6ec759519359118cb2f8fd5f254f95bf2b938e [2022-10-17 10:10:30,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:10:30,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:10:30,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:10:30,738 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:10:30,739 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:10:30,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i [2022-10-17 10:10:30,819 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ/data/e901b1be0/e31c394f6e1740309aa2bc0e0aa62470/FLAGc5445464c [2022-10-17 10:10:31,451 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:10:31,452 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i [2022-10-17 10:10:31,472 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ/data/e901b1be0/e31c394f6e1740309aa2bc0e0aa62470/FLAGc5445464c [2022-10-17 10:10:31,684 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ/data/e901b1be0/e31c394f6e1740309aa2bc0e0aa62470 [2022-10-17 10:10:31,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:10:31,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:10:31,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:10:31,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:10:31,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:10:31,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:10:31" (1/1) ... [2022-10-17 10:10:31,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74f90614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:31, skipping insertion in model container [2022-10-17 10:10:31,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:10:31" (1/1) ... [2022-10-17 10:10:31,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:10:31,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:10:32,013 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_ee0ca3b1-1add-4944-a2f8-5f28a33943af/sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-10-17 10:10:32,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:10:32,250 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:10:32,265 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_ee0ca3b1-1add-4944-a2f8-5f28a33943af/sv-benchmarks/c/pthread-wmm/mix030_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-10-17 10:10:32,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:10:32,412 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:10:32,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:32 WrapperNode [2022-10-17 10:10:32,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:10:32,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:10:32,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:10:32,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:10:32,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:32" (1/1) ... [2022-10-17 10:10:32,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:32" (1/1) ... [2022-10-17 10:10:32,496 INFO L138 Inliner]: procedures = 177, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 191 [2022-10-17 10:10:32,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:10:32,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:10:32,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:10:32,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:10:32,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:32" (1/1) ... [2022-10-17 10:10:32,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:32" (1/1) ... [2022-10-17 10:10:32,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:32" (1/1) ... [2022-10-17 10:10:32,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:32" (1/1) ... [2022-10-17 10:10:32,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:32" (1/1) ... [2022-10-17 10:10:32,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:32" (1/1) ... [2022-10-17 10:10:32,587 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:32" (1/1) ... [2022-10-17 10:10:32,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:32" (1/1) ... [2022-10-17 10:10:32,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:10:32,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:10:32,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:10:32,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:10:32,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:32" (1/1) ... [2022-10-17 10:10:32,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:10:32,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:10:32,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:10:32,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee0ca3b1-1add-4944-a2f8-5f28a33943af/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:10:32,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:10:32,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 10:10:32,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:10:32,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:10:32,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:10:32,699 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-17 10:10:32,699 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-17 10:10:32,699 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-17 10:10:32,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-17 10:10:32,700 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-10-17 10:10:32,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-10-17 10:10:32,700 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-10-17 10:10:32,701 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-10-17 10:10:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:10:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 10:10:32,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:10:32,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:10:32,704 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 10:10:32,988 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:10:32,990 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:10:33,844 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:10:34,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:10:34,338 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:10:34,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:10:34 BoogieIcfgContainer [2022-10-17 10:10:34,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:10:34,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:10:34,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:10:34,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:10:34,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:10:31" (1/3) ... [2022-10-17 10:10:34,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e9a18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:10:34, skipping insertion in model container [2022-10-17 10:10:34,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:10:32" (2/3) ... [2022-10-17 10:10:34,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e9a18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:10:34, skipping insertion in model container [2022-10-17 10:10:34,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:10:34" (3/3) ... [2022-10-17 10:10:34,382 INFO L112 eAbstractionObserver]: Analyzing ICFG mix030_power.oepc_pso.oepc_rmo.oepc.i [2022-10-17 10:10:34,392 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:10:34,404 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:10:34,404 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-17 10:10:34,404 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:10:34,504 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 10:10:34,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 136 transitions, 292 flow [2022-10-17 10:10:34,613 INFO L130 PetriNetUnfolder]: 2/132 cut-off events. [2022-10-17 10:10:34,614 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:10:34,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 132 events. 2/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2022-10-17 10:10:34,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 136 transitions, 292 flow [2022-10-17 10:10:34,624 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 132 transitions, 276 flow [2022-10-17 10:10:34,636 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:10:34,644 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@be2fc91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:10:34,644 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-10-17 10:10:34,656 INFO L130 PetriNetUnfolder]: 0/50 cut-off events. [2022-10-17 10:10:34,656 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:10:34,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:10:34,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:10:34,658 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:10:34,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:10:34,664 INFO L85 PathProgramCache]: Analyzing trace with hash 241967491, now seen corresponding path program 1 times [2022-10-17 10:10:34,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:10:34,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342162231] [2022-10-17 10:10:34,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:10:34,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:10:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:35,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:10:35,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:10:35,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342162231] [2022-10-17 10:10:35,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342162231] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:10:35,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:10:35,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:10:35,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037888726] [2022-10-17 10:10:35,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:10:35,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:10:35,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:10:35,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:10:35,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:10:35,433 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 136 [2022-10-17 10:10:35,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 132 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:35,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:10:35,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 136 [2022-10-17 10:10:35,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:10:35,993 INFO L130 PetriNetUnfolder]: 162/546 cut-off events. [2022-10-17 10:10:35,993 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-10-17 10:10:35,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 852 conditions, 546 events. 162/546 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2815 event pairs, 34 based on Foata normal form. 49/566 useless extension candidates. Maximal degree in co-relation 796. Up to 191 conditions per place. [2022-10-17 10:10:36,008 INFO L137 encePairwiseOnDemand]: 131/136 looper letters, 18 selfloop transitions, 2 changer transitions 0/136 dead transitions. [2022-10-17 10:10:36,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 136 transitions, 333 flow [2022-10-17 10:10:36,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:10:36,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:10:36,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2022-10-17 10:10:36,033 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9436274509803921 [2022-10-17 10:10:36,034 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 385 transitions. [2022-10-17 10:10:36,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 385 transitions. [2022-10-17 10:10:36,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:10:36,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 385 transitions. [2022-10-17 10:10:36,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.33333333333334) internal successors, (385), 3 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:36,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:36,063 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:36,066 INFO L175 Difference]: Start difference. First operand has 143 places, 132 transitions, 276 flow. Second operand 3 states and 385 transitions. [2022-10-17 10:10:36,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 136 transitions, 333 flow [2022-10-17 10:10:36,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 136 transitions, 326 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-10-17 10:10:36,077 INFO L231 Difference]: Finished difference. Result has 139 places, 128 transitions, 268 flow [2022-10-17 10:10:36,080 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=139, PETRI_TRANSITIONS=128} [2022-10-17 10:10:36,084 INFO L287 CegarLoopForPetriNet]: 143 programPoint places, -4 predicate places. [2022-10-17 10:10:36,084 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 268 flow [2022-10-17 10:10:36,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:36,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:10:36,086 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:10:36,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:10:36,086 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:10:36,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:10:36,088 INFO L85 PathProgramCache]: Analyzing trace with hash -619394308, now seen corresponding path program 1 times [2022-10-17 10:10:36,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:10:36,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387922509] [2022-10-17 10:10:36,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:10:36,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:10:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:36,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:10:36,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:10:36,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387922509] [2022-10-17 10:10:36,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387922509] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:10:36,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:10:36,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:10:36,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845469253] [2022-10-17 10:10:36,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:10:36,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:10:36,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:10:36,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:10:36,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:10:36,851 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 136 [2022-10-17 10:10:36,859 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 128 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 104.66666666666667) internal successors, (628), 6 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:36,859 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:10:36,859 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 136 [2022-10-17 10:10:36,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:10:48,525 INFO L130 PetriNetUnfolder]: 21069/43826 cut-off events. [2022-10-17 10:10:48,526 INFO L131 PetriNetUnfolder]: For 1735/1735 co-relation queries the response was YES. [2022-10-17 10:10:48,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74300 conditions, 43826 events. 21069/43826 cut-off events. For 1735/1735 co-relation queries the response was YES. Maximal size of possible extension queue 1835. Compared 465199 event pairs, 4146 based on Foata normal form. 0/42804 useless extension candidates. Maximal degree in co-relation 74241. Up to 9439 conditions per place. [2022-10-17 10:10:48,885 INFO L137 encePairwiseOnDemand]: 121/136 looper letters, 38 selfloop transitions, 11 changer transitions 102/236 dead transitions. [2022-10-17 10:10:48,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 236 transitions, 778 flow [2022-10-17 10:10:48,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:10:48,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-10-17 10:10:48,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1058 transitions. [2022-10-17 10:10:48,891 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8643790849673203 [2022-10-17 10:10:48,891 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1058 transitions. [2022-10-17 10:10:48,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1058 transitions. [2022-10-17 10:10:48,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:10:48,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1058 transitions. [2022-10-17 10:10:48,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 117.55555555555556) internal successors, (1058), 9 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:48,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:48,903 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 136.0) internal successors, (1360), 10 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:48,904 INFO L175 Difference]: Start difference. First operand has 139 places, 128 transitions, 268 flow. Second operand 9 states and 1058 transitions. [2022-10-17 10:10:48,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 236 transitions, 778 flow [2022-10-17 10:10:48,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 236 transitions, 760 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:10:48,913 INFO L231 Difference]: Finished difference. Result has 153 places, 122 transitions, 374 flow [2022-10-17 10:10:48,913 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=374, PETRI_PLACES=153, PETRI_TRANSITIONS=122} [2022-10-17 10:10:48,915 INFO L287 CegarLoopForPetriNet]: 143 programPoint places, 10 predicate places. [2022-10-17 10:10:48,915 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 122 transitions, 374 flow [2022-10-17 10:10:48,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.66666666666667) internal successors, (628), 6 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:48,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:10:48,917 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:10:48,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:10:48,919 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:10:48,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:10:48,921 INFO L85 PathProgramCache]: Analyzing trace with hash -61313541, now seen corresponding path program 1 times [2022-10-17 10:10:48,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:10:48,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782305555] [2022-10-17 10:10:48,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:10:48,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:10:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:49,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:10:49,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:10:49,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782305555] [2022-10-17 10:10:49,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782305555] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:10:49,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:10:49,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:10:49,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575544880] [2022-10-17 10:10:49,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:10:49,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:10:49,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:10:49,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:10:49,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:10:49,375 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 136 [2022-10-17 10:10:49,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 122 transitions, 374 flow. Second operand has 7 states, 7 states have (on average 104.42857142857143) internal successors, (731), 7 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:49,377 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:10:49,377 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 136 [2022-10-17 10:10:49,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:10:56,229 INFO L130 PetriNetUnfolder]: 16182/26980 cut-off events. [2022-10-17 10:10:56,229 INFO L131 PetriNetUnfolder]: For 49365/49365 co-relation queries the response was YES. [2022-10-17 10:10:56,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84502 conditions, 26980 events. 16182/26980 cut-off events. For 49365/49365 co-relation queries the response was YES. Maximal size of possible extension queue 1351. Compared 219064 event pairs, 1446 based on Foata normal form. 538/27090 useless extension candidates. Maximal degree in co-relation 84431. Up to 7483 conditions per place. [2022-10-17 10:10:56,483 INFO L137 encePairwiseOnDemand]: 120/136 looper letters, 49 selfloop transitions, 16 changer transitions 133/283 dead transitions. [2022-10-17 10:10:56,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 283 transitions, 1710 flow [2022-10-17 10:10:56,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-17 10:10:56,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-10-17 10:10:56,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1503 transitions. [2022-10-17 10:10:56,490 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8501131221719457 [2022-10-17 10:10:56,491 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1503 transitions. [2022-10-17 10:10:56,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1503 transitions. [2022-10-17 10:10:56,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:10:56,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1503 transitions. [2022-10-17 10:10:56,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.61538461538461) internal successors, (1503), 13 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:56,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:56,507 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 136.0) internal successors, (1904), 14 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:56,507 INFO L175 Difference]: Start difference. First operand has 153 places, 122 transitions, 374 flow. Second operand 13 states and 1503 transitions. [2022-10-17 10:10:56,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 283 transitions, 1710 flow [2022-10-17 10:10:56,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 283 transitions, 1592 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:10:56,605 INFO L231 Difference]: Finished difference. Result has 155 places, 130 transitions, 528 flow [2022-10-17 10:10:56,606 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=528, PETRI_PLACES=155, PETRI_TRANSITIONS=130} [2022-10-17 10:10:56,609 INFO L287 CegarLoopForPetriNet]: 143 programPoint places, 12 predicate places. [2022-10-17 10:10:56,609 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 130 transitions, 528 flow [2022-10-17 10:10:56,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 104.42857142857143) internal successors, (731), 7 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:56,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:10:56,611 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:10:56,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:10:56,612 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:10:56,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:10:56,613 INFO L85 PathProgramCache]: Analyzing trace with hash 161808891, now seen corresponding path program 1 times [2022-10-17 10:10:56,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:10:56,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471591639] [2022-10-17 10:10:56,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:10:56,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:10:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:10:56,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:10:56,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:10:56,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471591639] [2022-10-17 10:10:56,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471591639] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:10:56,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:10:57,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:10:57,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699437857] [2022-10-17 10:10:57,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:10:57,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:10:57,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:10:57,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:10:57,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:10:57,010 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 136 [2022-10-17 10:10:57,012 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 130 transitions, 528 flow. Second operand has 7 states, 7 states have (on average 104.42857142857143) internal successors, (731), 7 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:10:57,012 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:10:57,012 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 136 [2022-10-17 10:10:57,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand