./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a72b3b3683b5d2b2d35965fc1a3189152678e29fe154c9fbeb2d06d1447980e3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:46:31,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:46:31,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:46:31,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:46:31,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:46:31,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:46:31,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:46:31,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:46:31,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:46:31,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:46:31,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:46:31,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:46:31,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:46:31,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:46:31,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:46:31,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:46:31,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:46:31,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:46:31,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:46:31,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:46:31,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:46:31,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:46:31,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:46:31,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:46:31,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:46:31,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:46:31,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:46:31,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:46:31,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:46:31,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:46:31,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:46:31,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:46:31,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:46:31,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:46:31,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:46:31,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:46:31,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:46:31,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:46:31,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:46:31,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:46:31,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:46:31,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-02 20:46:31,477 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:46:31,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:46:31,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:46:31,478 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:46:31,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:46:31,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:46:31,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:46:31,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:46:31,481 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:46:31,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:46:31,482 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:46:31,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:46:31,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:46:31,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:46:31,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:46:31,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:46:31,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:46:31,484 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:46:31,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:46:31,484 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:46:31,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:46:31,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:46:31,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:46:31,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:46:31,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:46:31,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:46:31,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:46:31,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:46:31,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:46:31,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:46:31,487 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:46:31,487 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:46:31,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:46:31,488 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_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a72b3b3683b5d2b2d35965fc1a3189152678e29fe154c9fbeb2d06d1447980e3 [2022-11-02 20:46:31,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:46:31,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:46:31,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:46:31,824 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:46:31,825 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:46:31,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i [2022-11-02 20:46:31,900 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc/data/3a41af22b/ff0605602d3c49f8a7f970568cda0e81/FLAG252f8e61a [2022-11-02 20:46:32,574 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:46:32,575 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/sv-benchmarks/c/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i [2022-11-02 20:46:32,594 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc/data/3a41af22b/ff0605602d3c49f8a7f970568cda0e81/FLAG252f8e61a [2022-11-02 20:46:32,825 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc/data/3a41af22b/ff0605602d3c49f8a7f970568cda0e81 [2022-11-02 20:46:32,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:46:32,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:46:32,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:46:32,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:46:32,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:46:32,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:46:32" (1/1) ... [2022-11-02 20:46:32,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59e3d8c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:32, skipping insertion in model container [2022-11-02 20:46:32,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:46:32" (1/1) ... [2022-11-02 20:46:32,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:46:32,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:46:33,112 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_24e4df0c-973c-4b52-8586-28eef446bc2c/sv-benchmarks/c/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-02 20:46:33,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:46:33,320 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:46:33,332 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_24e4df0c-973c-4b52-8586-28eef446bc2c/sv-benchmarks/c/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-02 20:46:33,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:46:33,438 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:46:33,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:33 WrapperNode [2022-11-02 20:46:33,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:46:33,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:46:33,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:46:33,439 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:46:33,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:33" (1/1) ... [2022-11-02 20:46:33,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:33" (1/1) ... [2022-11-02 20:46:33,521 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 193 [2022-11-02 20:46:33,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:46:33,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:46:33,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:46:33,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:46:33,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:33" (1/1) ... [2022-11-02 20:46:33,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:33" (1/1) ... [2022-11-02 20:46:33,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:33" (1/1) ... [2022-11-02 20:46:33,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:33" (1/1) ... [2022-11-02 20:46:33,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:33" (1/1) ... [2022-11-02 20:46:33,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:33" (1/1) ... [2022-11-02 20:46:33,573 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:33" (1/1) ... [2022-11-02 20:46:33,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:33" (1/1) ... [2022-11-02 20:46:33,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:46:33,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:46:33,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:46:33,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:46:33,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:33" (1/1) ... [2022-11-02 20:46:33,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:46:33,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:46:33,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:46:33,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24e4df0c-973c-4b52-8586-28eef446bc2c/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:46:33,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:46:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 20:46:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:46:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:46:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:46:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-02 20:46:33,677 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-02 20:46:33,679 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-02 20:46:33,680 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-02 20:46:33,680 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-02 20:46:33,681 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-02 20:46:33,681 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-02 20:46:33,681 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-02 20:46:33,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:46:33,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 20:46:33,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:46:33,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:46:33,683 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:46:33,878 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:46:33,881 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:46:34,719 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:46:35,290 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:46:35,291 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:46:35,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:35 BoogieIcfgContainer [2022-11-02 20:46:35,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:46:35,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:46:35,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:46:35,299 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:46:35,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:46:32" (1/3) ... [2022-11-02 20:46:35,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a97396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:46:35, skipping insertion in model container [2022-11-02 20:46:35,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:46:33" (2/3) ... [2022-11-02 20:46:35,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a97396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:46:35, skipping insertion in model container [2022-11-02 20:46:35,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:46:35" (3/3) ... [2022-11-02 20:46:35,302 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040_power.oepc_pso.oepc_rmo.oepc.i [2022-11-02 20:46:35,312 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:46:35,324 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:46:35,324 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-02 20:46:35,324 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:46:35,404 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:46:35,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 139 transitions, 298 flow [2022-11-02 20:46:35,506 INFO L130 PetriNetUnfolder]: 2/135 cut-off events. [2022-11-02 20:46:35,507 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:46:35,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 135 events. 2/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-11-02 20:46:35,511 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 139 transitions, 298 flow [2022-11-02 20:46:35,521 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 135 transitions, 282 flow [2022-11-02 20:46:35,543 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:46:35,550 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;@7adbf947, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:46:35,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-02 20:46:35,561 INFO L130 PetriNetUnfolder]: 0/50 cut-off events. [2022-11-02 20:46:35,561 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:46:35,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:35,562 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:35,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:46:35,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:35,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1951185825, now seen corresponding path program 1 times [2022-11-02 20:46:35,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:35,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578194304] [2022-11-02 20:46:35,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:35,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:36,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:36,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:36,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578194304] [2022-11-02 20:46:36,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578194304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:36,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:36,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:46:36,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641826938] [2022-11-02 20:46:36,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:36,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:46:36,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:36,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:46:36,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:46:36,281 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 139 [2022-11-02 20:46:36,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:36,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:36,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 139 [2022-11-02 20:46:36,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:36,782 INFO L130 PetriNetUnfolder]: 162/623 cut-off events. [2022-11-02 20:46:36,783 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-02 20:46:36,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 929 conditions, 623 events. 162/623 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3448 event pairs, 132 based on Foata normal form. 46/627 useless extension candidates. Maximal degree in co-relation 871. Up to 191 conditions per place. [2022-11-02 20:46:36,797 INFO L137 encePairwiseOnDemand]: 134/139 looper letters, 18 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2022-11-02 20:46:36,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 139 transitions, 339 flow [2022-11-02 20:46:36,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:46:36,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:46:36,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2022-11-02 20:46:36,819 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9448441247002398 [2022-11-02 20:46:36,819 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2022-11-02 20:46:36,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2022-11-02 20:46:36,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:36,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2022-11-02 20:46:36,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:36,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:36,847 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:36,849 INFO L175 Difference]: Start difference. First operand has 146 places, 135 transitions, 282 flow. Second operand 3 states and 394 transitions. [2022-11-02 20:46:36,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 139 transitions, 339 flow [2022-11-02 20:46:36,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 139 transitions, 332 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:46:36,858 INFO L231 Difference]: Finished difference. Result has 142 places, 131 transitions, 274 flow [2022-11-02 20:46:36,860 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=142, PETRI_TRANSITIONS=131} [2022-11-02 20:46:36,864 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2022-11-02 20:46:36,865 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 131 transitions, 274 flow [2022-11-02 20:46:36,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:36,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:36,866 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:36,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:46:36,867 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:46:36,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:36,868 INFO L85 PathProgramCache]: Analyzing trace with hash 771760905, now seen corresponding path program 1 times [2022-11-02 20:46:36,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:36,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660514422] [2022-11-02 20:46:36,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:36,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:37,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:37,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:37,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660514422] [2022-11-02 20:46:37,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660514422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:37,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:37,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:46:37,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749030652] [2022-11-02 20:46:37,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:37,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:46:37,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:37,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:46:37,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:46:37,366 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 139 [2022-11-02 20:46:37,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 274 flow. Second operand has 7 states, 7 states have (on average 108.28571428571429) internal successors, (758), 7 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:37,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:37,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 139 [2022-11-02 20:46:37,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:45,672 INFO L130 PetriNetUnfolder]: 14819/33024 cut-off events. [2022-11-02 20:46:45,672 INFO L131 PetriNetUnfolder]: For 1153/1153 co-relation queries the response was YES. [2022-11-02 20:46:45,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54690 conditions, 33024 events. 14819/33024 cut-off events. For 1153/1153 co-relation queries the response was YES. Maximal size of possible extension queue 1336. Compared 352851 event pairs, 2507 based on Foata normal form. 0/32157 useless extension candidates. Maximal degree in co-relation 54629. Up to 7247 conditions per place. [2022-11-02 20:46:45,946 INFO L137 encePairwiseOnDemand]: 125/139 looper letters, 48 selfloop transitions, 12 changer transitions 128/277 dead transitions. [2022-11-02 20:46:45,947 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 277 transitions, 948 flow [2022-11-02 20:46:45,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:46:45,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:46:45,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1556 transitions. [2022-11-02 20:46:45,953 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8610957387935805 [2022-11-02 20:46:45,953 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1556 transitions. [2022-11-02 20:46:45,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1556 transitions. [2022-11-02 20:46:45,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:45,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1556 transitions. [2022-11-02 20:46:45,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 119.6923076923077) internal successors, (1556), 13 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:45,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:45,967 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:45,967 INFO L175 Difference]: Start difference. First operand has 142 places, 131 transitions, 274 flow. Second operand 13 states and 1556 transitions. [2022-11-02 20:46:45,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 277 transitions, 948 flow [2022-11-02 20:46:45,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 277 transitions, 922 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:46:45,978 INFO L231 Difference]: Finished difference. Result has 164 places, 126 transitions, 374 flow [2022-11-02 20:46:45,979 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=374, PETRI_PLACES=164, PETRI_TRANSITIONS=126} [2022-11-02 20:46:45,980 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 18 predicate places. [2022-11-02 20:46:45,980 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 126 transitions, 374 flow [2022-11-02 20:46:45,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.28571428571429) internal successors, (758), 7 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:45,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:45,982 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:45,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:46:45,985 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:46:45,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash -562955512, now seen corresponding path program 1 times [2022-11-02 20:46:45,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:45,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215890979] [2022-11-02 20:46:45,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:45,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:46,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:46,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:46,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215890979] [2022-11-02 20:46:46,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215890979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:46,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:46,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:46:46,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774554320] [2022-11-02 20:46:46,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:46,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:46:46,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:46,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:46:46,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:46:46,495 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 139 [2022-11-02 20:46:46,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 126 transitions, 374 flow. Second operand has 7 states, 7 states have (on average 108.42857142857143) internal successors, (759), 7 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:46,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:46,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 139 [2022-11-02 20:46:46,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:51,412 INFO L130 PetriNetUnfolder]: 10158/17470 cut-off events. [2022-11-02 20:46:51,412 INFO L131 PetriNetUnfolder]: For 30569/30637 co-relation queries the response was YES. [2022-11-02 20:46:51,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52538 conditions, 17470 events. 10158/17470 cut-off events. For 30569/30637 co-relation queries the response was YES. Maximal size of possible extension queue 847. Compared 138583 event pairs, 1150 based on Foata normal form. 368/17635 useless extension candidates. Maximal degree in co-relation 52461. Up to 4924 conditions per place. [2022-11-02 20:46:51,544 INFO L137 encePairwiseOnDemand]: 127/139 looper letters, 54 selfloop transitions, 10 changer transitions 118/271 dead transitions. [2022-11-02 20:46:51,544 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 271 transitions, 1478 flow [2022-11-02 20:46:51,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:46:51,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:46:51,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1538 transitions. [2022-11-02 20:46:51,557 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8511344770337577 [2022-11-02 20:46:51,557 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1538 transitions. [2022-11-02 20:46:51,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1538 transitions. [2022-11-02 20:46:51,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:51,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1538 transitions. [2022-11-02 20:46:51,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 118.3076923076923) internal successors, (1538), 13 states have internal predecessors, (1538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:51,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:51,569 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:51,569 INFO L175 Difference]: Start difference. First operand has 164 places, 126 transitions, 374 flow. Second operand 13 states and 1538 transitions. [2022-11-02 20:46:51,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 271 transitions, 1478 flow [2022-11-02 20:46:51,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 271 transitions, 1454 flow, removed 12 selfloop flow, removed 3 redundant places. [2022-11-02 20:46:51,731 INFO L231 Difference]: Finished difference. Result has 162 places, 132 transitions, 500 flow [2022-11-02 20:46:51,731 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=500, PETRI_PLACES=162, PETRI_TRANSITIONS=132} [2022-11-02 20:46:51,734 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 16 predicate places. [2022-11-02 20:46:51,734 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 132 transitions, 500 flow [2022-11-02 20:46:51,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.42857142857143) internal successors, (759), 7 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:51,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:51,735 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:51,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:46:51,736 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:46:51,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:51,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1974763944, now seen corresponding path program 1 times [2022-11-02 20:46:51,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:51,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540544169] [2022-11-02 20:46:51,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:51,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:52,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:52,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:52,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540544169] [2022-11-02 20:46:52,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540544169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:52,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:52,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:46:52,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614460084] [2022-11-02 20:46:52,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:52,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:46:52,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:52,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:46:52,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:46:52,087 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 139 [2022-11-02 20:46:52,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 132 transitions, 500 flow. Second operand has 7 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:52,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:52,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 139 [2022-11-02 20:46:52,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:46:56,074 INFO L130 PetriNetUnfolder]: 8555/14629 cut-off events. [2022-11-02 20:46:56,074 INFO L131 PetriNetUnfolder]: For 49824/49920 co-relation queries the response was YES. [2022-11-02 20:46:56,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51297 conditions, 14629 events. 8555/14629 cut-off events. For 49824/49920 co-relation queries the response was YES. Maximal size of possible extension queue 727. Compared 111933 event pairs, 984 based on Foata normal form. 282/14716 useless extension candidates. Maximal degree in co-relation 51209. Up to 4791 conditions per place. [2022-11-02 20:46:56,225 INFO L137 encePairwiseOnDemand]: 124/139 looper letters, 54 selfloop transitions, 24 changer transitions 106/273 dead transitions. [2022-11-02 20:46:56,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 273 transitions, 1800 flow [2022-11-02 20:46:56,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 20:46:56,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-02 20:46:56,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1536 transitions. [2022-11-02 20:46:56,231 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8500276701715551 [2022-11-02 20:46:56,231 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1536 transitions. [2022-11-02 20:46:56,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1536 transitions. [2022-11-02 20:46:56,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:46:56,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1536 transitions. [2022-11-02 20:46:56,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 118.15384615384616) internal successors, (1536), 13 states have internal predecessors, (1536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:56,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:56,243 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 139.0) internal successors, (1946), 14 states have internal predecessors, (1946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:56,243 INFO L175 Difference]: Start difference. First operand has 162 places, 132 transitions, 500 flow. Second operand 13 states and 1536 transitions. [2022-11-02 20:46:56,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 273 transitions, 1800 flow [2022-11-02 20:46:56,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 273 transitions, 1723 flow, removed 36 selfloop flow, removed 4 redundant places. [2022-11-02 20:46:56,555 INFO L231 Difference]: Finished difference. Result has 173 places, 146 transitions, 786 flow [2022-11-02 20:46:56,561 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=786, PETRI_PLACES=173, PETRI_TRANSITIONS=146} [2022-11-02 20:46:56,562 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 27 predicate places. [2022-11-02 20:46:56,562 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 146 transitions, 786 flow [2022-11-02 20:46:56,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 108.57142857142857) internal successors, (760), 7 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:56,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:46:56,563 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:46:56,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:46:56,564 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:46:56,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:46:56,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1164712423, now seen corresponding path program 1 times [2022-11-02 20:46:56,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:46:56,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843368694] [2022-11-02 20:46:56,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:46:56,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:46:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:46:56,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:46:56,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:46:56,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843368694] [2022-11-02 20:46:56,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843368694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:46:56,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:46:56,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:46:56,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672363328] [2022-11-02 20:46:56,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:46:56,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:46:56,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:46:56,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:46:56,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:46:56,892 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 139 [2022-11-02 20:46:56,893 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 146 transitions, 786 flow. Second operand has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:46:56,893 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:46:56,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 139 [2022-11-02 20:46:56,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:47:01,324 INFO L130 PetriNetUnfolder]: 7177/14279 cut-off events. [2022-11-02 20:47:01,324 INFO L131 PetriNetUnfolder]: For 58639/59085 co-relation queries the response was YES. [2022-11-02 20:47:01,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47649 conditions, 14279 events. 7177/14279 cut-off events. For 58639/59085 co-relation queries the response was YES. Maximal size of possible extension queue 825. Compared 129670 event pairs, 2323 based on Foata normal form. 567/14409 useless extension candidates. Maximal degree in co-relation 47549. Up to 3564 conditions per place. [2022-11-02 20:47:01,482 INFO L137 encePairwiseOnDemand]: 133/139 looper letters, 37 selfloop transitions, 8 changer transitions 56/215 dead transitions. [2022-11-02 20:47:01,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 215 transitions, 1432 flow [2022-11-02 20:47:01,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:47:01,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 20:47:01,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1108 transitions. [2022-11-02 20:47:01,490 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.885691446842526 [2022-11-02 20:47:01,491 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1108 transitions. [2022-11-02 20:47:01,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1108 transitions. [2022-11-02 20:47:01,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:47:01,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1108 transitions. [2022-11-02 20:47:01,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 123.11111111111111) internal successors, (1108), 9 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:01,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:01,499 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 139.0) internal successors, (1390), 10 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:01,499 INFO L175 Difference]: Start difference. First operand has 173 places, 146 transitions, 786 flow. Second operand 9 states and 1108 transitions. [2022-11-02 20:47:01,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 215 transitions, 1432 flow [2022-11-02 20:47:01,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 215 transitions, 1336 flow, removed 48 selfloop flow, removed 6 redundant places. [2022-11-02 20:47:01,812 INFO L231 Difference]: Finished difference. Result has 173 places, 145 transitions, 750 flow [2022-11-02 20:47:01,813 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=750, PETRI_PLACES=173, PETRI_TRANSITIONS=145} [2022-11-02 20:47:01,814 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 27 predicate places. [2022-11-02 20:47:01,814 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 145 transitions, 750 flow [2022-11-02 20:47:01,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:01,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:47:01,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:47:01,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:47:01,816 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:47:01,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:01,817 INFO L85 PathProgramCache]: Analyzing trace with hash 2046545895, now seen corresponding path program 1 times [2022-11-02 20:47:01,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:01,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710719333] [2022-11-02 20:47:01,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:01,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:02,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:47:02,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:47:02,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710719333] [2022-11-02 20:47:02,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710719333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:47:02,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:47:02,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 20:47:02,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190200241] [2022-11-02 20:47:02,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:47:02,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:47:02,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:47:02,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:47:02,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:47:02,154 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 139 [2022-11-02 20:47:02,155 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 145 transitions, 750 flow. Second operand has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:02,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:47:02,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 139 [2022-11-02 20:47:02,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:47:16,046 INFO L130 PetriNetUnfolder]: 28912/50375 cut-off events. [2022-11-02 20:47:16,046 INFO L131 PetriNetUnfolder]: For 69354/80095 co-relation queries the response was YES. [2022-11-02 20:47:16,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119401 conditions, 50375 events. 28912/50375 cut-off events. For 69354/80095 co-relation queries the response was YES. Maximal size of possible extension queue 2962. Compared 478308 event pairs, 1918 based on Foata normal form. 418/48357 useless extension candidates. Maximal degree in co-relation 119299. Up to 16319 conditions per place. [2022-11-02 20:47:16,753 INFO L137 encePairwiseOnDemand]: 128/139 looper letters, 101 selfloop transitions, 20 changer transitions 0/241 dead transitions. [2022-11-02 20:47:16,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 241 transitions, 1442 flow [2022-11-02 20:47:16,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:47:16,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 20:47:16,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1227 transitions. [2022-11-02 20:47:16,758 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8827338129496403 [2022-11-02 20:47:16,758 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1227 transitions. [2022-11-02 20:47:16,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1227 transitions. [2022-11-02 20:47:16,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:47:16,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1227 transitions. [2022-11-02 20:47:16,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 122.7) internal successors, (1227), 10 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:16,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:16,765 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 139.0) internal successors, (1529), 11 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:16,765 INFO L175 Difference]: Start difference. First operand has 173 places, 145 transitions, 750 flow. Second operand 10 states and 1227 transitions. [2022-11-02 20:47:16,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 241 transitions, 1442 flow [2022-11-02 20:47:16,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 241 transitions, 1350 flow, removed 42 selfloop flow, removed 16 redundant places. [2022-11-02 20:47:16,887 INFO L231 Difference]: Finished difference. Result has 166 places, 163 transitions, 843 flow [2022-11-02 20:47:16,888 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=843, PETRI_PLACES=166, PETRI_TRANSITIONS=163} [2022-11-02 20:47:16,888 INFO L287 CegarLoopForPetriNet]: 146 programPoint places, 20 predicate places. [2022-11-02 20:47:16,888 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 163 transitions, 843 flow [2022-11-02 20:47:16,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:16,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:47:16,889 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:47:16,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:47:16,889 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 20:47:16,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:47:16,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1462042965, now seen corresponding path program 1 times [2022-11-02 20:47:16,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:47:16,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519956421] [2022-11-02 20:47:16,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:47:16,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:47:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:47:17,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:47:17,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:47:17,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519956421] [2022-11-02 20:47:17,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519956421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:47:17,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:47:17,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-02 20:47:17,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852639424] [2022-11-02 20:47:17,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:47:17,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:47:17,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:47:17,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:47:17,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 20:47:17,152 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 139 [2022-11-02 20:47:17,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 163 transitions, 843 flow. Second operand has 7 states, 7 states have (on average 109.0) internal successors, (763), 7 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:47:17,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:47:17,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 139 [2022-11-02 20:47:17,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand