./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_afd72c64-2344-438b-91db-cb00c673234b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd72c64-2344-438b-91db-cb00c673234b/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd72c64-2344-438b-91db-cb00c673234b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd72c64-2344-438b-91db-cb00c673234b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd72c64-2344-438b-91db-cb00c673234b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd72c64-2344-438b-91db-cb00c673234b/bin/uautomizer-ug76WZFUDN --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 82646a2180350347ed217a12e2836ec5fdce4b0371f5e0f7afa776fd6812fa0f --- 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-6b4ec56 [2022-11-20 10:50:15,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:50:15,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:50:15,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:50:15,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:50:15,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:50:15,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:50:15,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:50:15,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:50:15,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:50:15,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:50:15,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:50:15,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:50:15,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:50:15,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:50:15,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:50:15,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:50:15,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:50:15,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:50:15,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:50:15,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:50:15,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:50:15,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:50:15,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:50:15,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:50:15,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:50:15,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:50:15,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:50:15,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:50:15,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:50:15,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:50:15,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:50:15,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:50:15,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:50:15,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:50:15,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:50:15,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:50:15,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:50:15,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:50:15,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:50:15,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:50:15,728 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd72c64-2344-438b-91db-cb00c673234b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:50:15,773 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:50:15,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:50:15,773 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:50:15,773 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:50:15,774 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:50:15,774 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:50:15,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:50:15,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:50:15,775 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:50:15,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:50:15,776 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:50:15,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:50:15,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:50:15,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:50:15,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:50:15,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:50:15,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:50:15,777 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:50:15,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:50:15,778 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:50:15,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:50:15,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:50:15,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:50:15,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:50:15,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:50:15,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:50:15,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:50:15,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:50:15,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:50:15,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:50:15,780 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:50:15,780 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:50:15,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:50:15,780 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_afd72c64-2344-438b-91db-cb00c673234b/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd72c64-2344-438b-91db-cb00c673234b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82646a2180350347ed217a12e2836ec5fdce4b0371f5e0f7afa776fd6812fa0f [2022-11-20 10:50:16,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:50:16,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:50:16,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:50:16,068 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:50:16,068 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:50:16,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd72c64-2344-438b-91db-cb00c673234b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i [2022-11-20 10:50:19,041 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:50:19,321 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:50:19,322 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd72c64-2344-438b-91db-cb00c673234b/sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i [2022-11-20 10:50:19,337 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd72c64-2344-438b-91db-cb00c673234b/bin/uautomizer-ug76WZFUDN/data/44fc20b52/810a44589efa43b493c8d5402ef5196e/FLAG8a180ea33 [2022-11-20 10:50:19,352 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd72c64-2344-438b-91db-cb00c673234b/bin/uautomizer-ug76WZFUDN/data/44fc20b52/810a44589efa43b493c8d5402ef5196e [2022-11-20 10:50:19,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:50:19,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:50:19,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:50:19,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:50:19,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:50:19,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:19" (1/1) ... [2022-11-20 10:50:19,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24344cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:19, skipping insertion in model container [2022-11-20 10:50:19,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:19" (1/1) ... [2022-11-20 10:50:19,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:50:19,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:50:19,690 WARN L237 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_afd72c64-2344-438b-91db-cb00c673234b/sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-20 10:50:20,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:50:20,013 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:50:20,029 WARN L237 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_afd72c64-2344-438b-91db-cb00c673234b/sv-benchmarks/c/pthread-wmm/mix037_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-11-20 10:50:20,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:50:20,139 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:50:20,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:20 WrapperNode [2022-11-20 10:50:20,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:50:20,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:50:20,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:50:20,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:50:20,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:20" (1/1) ... [2022-11-20 10:50:20,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:20" (1/1) ... [2022-11-20 10:50:20,233 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2022-11-20 10:50:20,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:50:20,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:50:20,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:50:20,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:50:20,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:20" (1/1) ... [2022-11-20 10:50:20,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:20" (1/1) ... [2022-11-20 10:50:20,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:20" (1/1) ... [2022-11-20 10:50:20,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:20" (1/1) ... [2022-11-20 10:50:20,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:20" (1/1) ... [2022-11-20 10:50:20,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:20" (1/1) ... [2022-11-20 10:50:20,291 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:20" (1/1) ... [2022-11-20 10:50:20,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:20" (1/1) ... [2022-11-20 10:50:20,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:50:20,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:50:20,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:50:20,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:50:20,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:20" (1/1) ... [2022-11-20 10:50:20,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:50:20,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd72c64-2344-438b-91db-cb00c673234b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:50:20,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd72c64-2344-438b-91db-cb00c673234b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:50:20,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afd72c64-2344-438b-91db-cb00c673234b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:50:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:50:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 10:50:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:50:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:50:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:50:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 10:50:20,400 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 10:50:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 10:50:20,401 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 10:50:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 10:50:20,402 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 10:50:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-20 10:50:20,402 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-20 10:50:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:50:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 10:50:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:50:20,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:50:20,404 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:50:20,638 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:50:20,641 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:50:20,977 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:50:21,177 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:50:21,185 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 10:50:21,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:21 BoogieIcfgContainer [2022-11-20 10:50:21,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:50:21,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:50:21,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:50:21,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:50:21,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:50:19" (1/3) ... [2022-11-20 10:50:21,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703f38bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:21, skipping insertion in model container [2022-11-20 10:50:21,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:20" (2/3) ... [2022-11-20 10:50:21,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703f38bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:21, skipping insertion in model container [2022-11-20 10:50:21,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:21" (3/3) ... [2022-11-20 10:50:21,198 INFO L112 eAbstractionObserver]: Analyzing ICFG mix037_power.oepc_pso.oepc_rmo.oepc.i [2022-11-20 10:50:21,207 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:50:21,218 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:50:21,219 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 10:50:21,219 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:50:21,305 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 10:50:21,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 140 transitions, 300 flow [2022-11-20 10:50:21,451 INFO L130 PetriNetUnfolder]: 2/136 cut-off events. [2022-11-20 10:50:21,451 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:50:21,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 136 events. 2/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 75 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-11-20 10:50:21,458 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 140 transitions, 300 flow [2022-11-20 10:50:21,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 136 transitions, 284 flow [2022-11-20 10:50:21,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:50:21,513 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;@2fcc6073, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:50:21,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-20 10:50:21,538 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-11-20 10:50:21,539 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:50:21,540 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:21,541 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:21,541 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 10:50:21,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:21,549 INFO L85 PathProgramCache]: Analyzing trace with hash 803712215, now seen corresponding path program 1 times [2022-11-20 10:50:21,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:21,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094638311] [2022-11-20 10:50:21,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:21,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:22,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:22,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:22,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094638311] [2022-11-20 10:50:22,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094638311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:22,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:22,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:50:22,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300525974] [2022-11-20 10:50:22,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:22,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:50:22,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:22,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:50:22,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:50:22,250 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 140 [2022-11-20 10:50:22,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 136 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:22,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:22,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 140 [2022-11-20 10:50:22,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:22,650 INFO L130 PetriNetUnfolder]: 162/624 cut-off events. [2022-11-20 10:50:22,651 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-20 10:50:22,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 930 conditions, 624 events. 162/624 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3477 event pairs, 132 based on Foata normal form. 46/628 useless extension candidates. Maximal degree in co-relation 871. Up to 191 conditions per place. [2022-11-20 10:50:22,665 INFO L137 encePairwiseOnDemand]: 135/140 looper letters, 18 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2022-11-20 10:50:22,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 140 transitions, 341 flow [2022-11-20 10:50:22,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:50:22,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:50:22,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2022-11-20 10:50:22,688 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9452380952380952 [2022-11-20 10:50:22,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2022-11-20 10:50:22,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2022-11-20 10:50:22,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:22,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2022-11-20 10:50:22,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 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) [2022-11-20 10:50:22,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2022-11-20 10:50:22,710 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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) [2022-11-20 10:50:22,712 INFO L175 Difference]: Start difference. First operand has 147 places, 136 transitions, 284 flow. Second operand 3 states and 397 transitions. [2022-11-20 10:50:22,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 140 transitions, 341 flow [2022-11-20 10:50:22,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 140 transitions, 334 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:50:22,723 INFO L231 Difference]: Finished difference. Result has 143 places, 132 transitions, 276 flow [2022-11-20 10:50:22,726 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=143, PETRI_TRANSITIONS=132} [2022-11-20 10:50:22,736 INFO L288 CegarLoopForPetriNet]: 147 programPoint places, -4 predicate places. [2022-11-20 10:50:22,736 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 132 transitions, 276 flow [2022-11-20 10:50:22,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:50:22,737 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:22,737 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:22,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:50:22,738 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)] === [2022-11-20 10:50:22,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:22,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1180188065, now seen corresponding path program 1 times [2022-11-20 10:50:22,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:22,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136884226] [2022-11-20 10:50:22,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:22,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:23,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:23,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:23,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136884226] [2022-11-20 10:50:23,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136884226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:23,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:23,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:50:23,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806396912] [2022-11-20 10:50:23,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:23,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:50:23,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:23,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:50:23,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:50:23,396 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 140 [2022-11-20 10:50:23,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 132 transitions, 276 flow. Second operand has 7 states, 7 states have (on average 110.28571428571429) internal successors, (772), 7 states have internal predecessors, (772), 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) [2022-11-20 10:50:23,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:23,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 140 [2022-11-20 10:50:23,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:27,652 INFO L130 PetriNetUnfolder]: 8438/18954 cut-off events. [2022-11-20 10:50:27,652 INFO L131 PetriNetUnfolder]: For 569/569 co-relation queries the response was YES. [2022-11-20 10:50:27,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31321 conditions, 18954 events. 8438/18954 cut-off events. For 569/569 co-relation queries the response was YES. Maximal size of possible extension queue 788. Compared 188290 event pairs, 904 based on Foata normal form. 0/18623 useless extension candidates. Maximal degree in co-relation 31259. Up to 4755 conditions per place. [2022-11-20 10:50:27,797 INFO L137 encePairwiseOnDemand]: 129/140 looper letters, 42 selfloop transitions, 7 changer transitions 110/250 dead transitions. [2022-11-20 10:50:27,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 250 transitions, 818 flow [2022-11-20 10:50:27,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:50:27,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 10:50:27,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1553 transitions. [2022-11-20 10:50:27,803 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8532967032967033 [2022-11-20 10:50:27,803 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1553 transitions. [2022-11-20 10:50:27,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1553 transitions. [2022-11-20 10:50:27,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:27,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1553 transitions. [2022-11-20 10:50:27,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 119.46153846153847) internal successors, (1553), 13 states have internal predecessors, (1553), 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) [2022-11-20 10:50:27,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 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) [2022-11-20 10:50:27,817 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 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) [2022-11-20 10:50:27,817 INFO L175 Difference]: Start difference. First operand has 143 places, 132 transitions, 276 flow. Second operand 13 states and 1553 transitions. [2022-11-20 10:50:27,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 250 transitions, 818 flow [2022-11-20 10:50:27,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 250 transitions, 800 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:50:27,827 INFO L231 Difference]: Finished difference. Result has 165 places, 123 transitions, 344 flow [2022-11-20 10:50:27,828 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=344, PETRI_PLACES=165, PETRI_TRANSITIONS=123} [2022-11-20 10:50:27,829 INFO L288 CegarLoopForPetriNet]: 147 programPoint places, 18 predicate places. [2022-11-20 10:50:27,830 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 123 transitions, 344 flow [2022-11-20 10:50:27,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 110.28571428571429) internal successors, (772), 7 states have internal predecessors, (772), 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) [2022-11-20 10:50:27,831 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:27,831 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:27,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:50:27,832 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)] === [2022-11-20 10:50:27,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:27,833 INFO L85 PathProgramCache]: Analyzing trace with hash 703746013, now seen corresponding path program 1 times [2022-11-20 10:50:27,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:27,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280803165] [2022-11-20 10:50:27,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:27,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:28,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:28,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:28,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280803165] [2022-11-20 10:50:28,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280803165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:28,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:28,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:50:28,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454798474] [2022-11-20 10:50:28,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:28,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:50:28,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:28,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:50:28,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:50:28,277 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 140 [2022-11-20 10:50:28,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 123 transitions, 344 flow. Second operand has 7 states, 7 states have (on average 110.42857142857143) internal successors, (773), 7 states have internal predecessors, (773), 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) [2022-11-20 10:50:28,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:28,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 140 [2022-11-20 10:50:28,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:31,175 INFO L130 PetriNetUnfolder]: 6025/10757 cut-off events. [2022-11-20 10:50:31,175 INFO L131 PetriNetUnfolder]: For 20896/20987 co-relation queries the response was YES. [2022-11-20 10:50:31,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32716 conditions, 10757 events. 6025/10757 cut-off events. For 20896/20987 co-relation queries the response was YES. Maximal size of possible extension queue 555. Compared 81654 event pairs, 1750 based on Foata normal form. 214/10690 useless extension candidates. Maximal degree in co-relation 32642. Up to 4022 conditions per place. [2022-11-20 10:50:31,262 INFO L137 encePairwiseOnDemand]: 127/140 looper letters, 44 selfloop transitions, 16 changer transitions 85/236 dead transitions. [2022-11-20 10:50:31,263 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 236 transitions, 1236 flow [2022-11-20 10:50:31,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:50:31,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 10:50:31,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1547 transitions. [2022-11-20 10:50:31,269 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.85 [2022-11-20 10:50:31,269 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1547 transitions. [2022-11-20 10:50:31,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1547 transitions. [2022-11-20 10:50:31,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:31,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1547 transitions. [2022-11-20 10:50:31,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 119.0) internal successors, (1547), 13 states have internal predecessors, (1547), 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) [2022-11-20 10:50:31,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 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) [2022-11-20 10:50:31,280 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 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) [2022-11-20 10:50:31,280 INFO L175 Difference]: Start difference. First operand has 165 places, 123 transitions, 344 flow. Second operand 13 states and 1547 transitions. [2022-11-20 10:50:31,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 236 transitions, 1236 flow [2022-11-20 10:50:31,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 236 transitions, 1184 flow, removed 24 selfloop flow, removed 4 redundant places. [2022-11-20 10:50:31,406 INFO L231 Difference]: Finished difference. Result has 161 places, 130 transitions, 469 flow [2022-11-20 10:50:31,406 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=469, PETRI_PLACES=161, PETRI_TRANSITIONS=130} [2022-11-20 10:50:31,409 INFO L288 CegarLoopForPetriNet]: 147 programPoint places, 14 predicate places. [2022-11-20 10:50:31,409 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 130 transitions, 469 flow [2022-11-20 10:50:31,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 110.42857142857143) internal successors, (773), 7 states have internal predecessors, (773), 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) [2022-11-20 10:50:31,410 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:31,410 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:31,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:50:31,411 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)] === [2022-11-20 10:50:31,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:31,412 INFO L85 PathProgramCache]: Analyzing trace with hash 887176220, now seen corresponding path program 1 times [2022-11-20 10:50:31,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:31,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909459992] [2022-11-20 10:50:31,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:31,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:31,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:31,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:31,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909459992] [2022-11-20 10:50:31,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909459992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:31,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:31,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:50:31,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410848121] [2022-11-20 10:50:31,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:31,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:50:31,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:31,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:50:31,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:50:31,758 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 140 [2022-11-20 10:50:31,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 130 transitions, 469 flow. Second operand has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 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) [2022-11-20 10:50:31,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:31,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 140 [2022-11-20 10:50:31,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:36,691 INFO L130 PetriNetUnfolder]: 15231/27237 cut-off events. [2022-11-20 10:50:36,691 INFO L131 PetriNetUnfolder]: For 30728/33677 co-relation queries the response was YES. [2022-11-20 10:50:36,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64837 conditions, 27237 events. 15231/27237 cut-off events. For 30728/33677 co-relation queries the response was YES. Maximal size of possible extension queue 1443. Compared 243317 event pairs, 1169 based on Foata normal form. 45/26054 useless extension candidates. Maximal degree in co-relation 64755. Up to 8121 conditions per place. [2022-11-20 10:50:36,970 INFO L137 encePairwiseOnDemand]: 129/140 looper letters, 93 selfloop transitions, 20 changer transitions 0/219 dead transitions. [2022-11-20 10:50:36,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 219 transitions, 984 flow [2022-11-20 10:50:36,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:50:36,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 10:50:36,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1237 transitions. [2022-11-20 10:50:36,975 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8835714285714286 [2022-11-20 10:50:36,975 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1237 transitions. [2022-11-20 10:50:36,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1237 transitions. [2022-11-20 10:50:36,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:36,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1237 transitions. [2022-11-20 10:50:36,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 123.7) internal successors, (1237), 10 states have internal predecessors, (1237), 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) [2022-11-20 10:50:36,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 140.0) internal successors, (1540), 11 states have internal predecessors, (1540), 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) [2022-11-20 10:50:36,987 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 140.0) internal successors, (1540), 11 states have internal predecessors, (1540), 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) [2022-11-20 10:50:36,988 INFO L175 Difference]: Start difference. First operand has 161 places, 130 transitions, 469 flow. Second operand 10 states and 1237 transitions. [2022-11-20 10:50:36,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 219 transitions, 984 flow [2022-11-20 10:50:37,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 219 transitions, 954 flow, removed 15 selfloop flow, removed 12 redundant places. [2022-11-20 10:50:37,101 INFO L231 Difference]: Finished difference. Result has 155 places, 148 transitions, 582 flow [2022-11-20 10:50:37,107 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=582, PETRI_PLACES=155, PETRI_TRANSITIONS=148} [2022-11-20 10:50:37,109 INFO L288 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2022-11-20 10:50:37,109 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 148 transitions, 582 flow [2022-11-20 10:50:37,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 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) [2022-11-20 10:50:37,109 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:37,110 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:37,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:50:37,110 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)] === [2022-11-20 10:50:37,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:37,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1674720770, now seen corresponding path program 1 times [2022-11-20 10:50:37,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:37,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009924371] [2022-11-20 10:50:37,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:37,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:37,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:37,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:37,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009924371] [2022-11-20 10:50:37,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009924371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:37,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:37,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:50:37,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920597629] [2022-11-20 10:50:37,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:37,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:50:37,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:37,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:50:37,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:50:37,456 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 140 [2022-11-20 10:50:37,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 148 transitions, 582 flow. Second operand has 7 states, 7 states have (on average 110.85714285714286) internal successors, (776), 7 states have internal predecessors, (776), 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) [2022-11-20 10:50:37,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:37,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 140 [2022-11-20 10:50:37,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:40,441 INFO L130 PetriNetUnfolder]: 6642/16037 cut-off events. [2022-11-20 10:50:40,441 INFO L131 PetriNetUnfolder]: For 27884/30615 co-relation queries the response was YES. [2022-11-20 10:50:40,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47022 conditions, 16037 events. 6642/16037 cut-off events. For 27884/30615 co-relation queries the response was YES. Maximal size of possible extension queue 907. Compared 172427 event pairs, 2233 based on Foata normal form. 340/15438 useless extension candidates. Maximal degree in co-relation 46939. Up to 3187 conditions per place. [2022-11-20 10:50:40,647 INFO L137 encePairwiseOnDemand]: 129/140 looper letters, 92 selfloop transitions, 22 changer transitions 0/223 dead transitions. [2022-11-20 10:50:40,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 223 transitions, 1253 flow [2022-11-20 10:50:40,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:50:40,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 10:50:40,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1185 transitions. [2022-11-20 10:50:40,651 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8464285714285714 [2022-11-20 10:50:40,651 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1185 transitions. [2022-11-20 10:50:40,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1185 transitions. [2022-11-20 10:50:40,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:40,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1185 transitions. [2022-11-20 10:50:40,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 118.5) internal successors, (1185), 10 states have internal predecessors, (1185), 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) [2022-11-20 10:50:40,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 140.0) internal successors, (1540), 11 states have internal predecessors, (1540), 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) [2022-11-20 10:50:40,660 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 140.0) internal successors, (1540), 11 states have internal predecessors, (1540), 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) [2022-11-20 10:50:40,660 INFO L175 Difference]: Start difference. First operand has 155 places, 148 transitions, 582 flow. Second operand 10 states and 1185 transitions. [2022-11-20 10:50:40,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 223 transitions, 1253 flow [2022-11-20 10:50:40,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 223 transitions, 1251 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:50:40,780 INFO L231 Difference]: Finished difference. Result has 171 places, 160 transitions, 775 flow [2022-11-20 10:50:40,780 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=775, PETRI_PLACES=171, PETRI_TRANSITIONS=160} [2022-11-20 10:50:40,783 INFO L288 CegarLoopForPetriNet]: 147 programPoint places, 24 predicate places. [2022-11-20 10:50:40,783 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 160 transitions, 775 flow [2022-11-20 10:50:40,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 110.85714285714286) internal successors, (776), 7 states have internal predecessors, (776), 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) [2022-11-20 10:50:40,784 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:40,784 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:40,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:50:40,785 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)] === [2022-11-20 10:50:40,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:40,786 INFO L85 PathProgramCache]: Analyzing trace with hash 721990880, now seen corresponding path program 1 times [2022-11-20 10:50:40,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:40,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316352621] [2022-11-20 10:50:40,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:40,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:41,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:41,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:41,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316352621] [2022-11-20 10:50:41,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316352621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:41,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:41,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:50:41,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407451446] [2022-11-20 10:50:41,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:41,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:50:41,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:41,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:50:41,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:50:41,170 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 140 [2022-11-20 10:50:41,172 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 160 transitions, 775 flow. Second operand has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2022-11-20 10:50:41,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:41,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 140 [2022-11-20 10:50:41,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:47,445 INFO L130 PetriNetUnfolder]: 19257/35374 cut-off events. [2022-11-20 10:50:47,445 INFO L131 PetriNetUnfolder]: For 64284/67330 co-relation queries the response was YES. [2022-11-20 10:50:47,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109861 conditions, 35374 events. 19257/35374 cut-off events. For 64284/67330 co-relation queries the response was YES. Maximal size of possible extension queue 2042. Compared 339543 event pairs, 1307 based on Foata normal form. 633/34978 useless extension candidates. Maximal degree in co-relation 109770. Up to 7333 conditions per place. [2022-11-20 10:50:47,730 INFO L137 encePairwiseOnDemand]: 129/140 looper letters, 121 selfloop transitions, 38 changer transitions 0/277 dead transitions. [2022-11-20 10:50:47,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 277 transitions, 1683 flow [2022-11-20 10:50:47,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 10:50:47,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 10:50:47,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1613 transitions. [2022-11-20 10:50:47,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8862637362637362 [2022-11-20 10:50:47,734 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1613 transitions. [2022-11-20 10:50:47,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1613 transitions. [2022-11-20 10:50:47,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:47,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1613 transitions. [2022-11-20 10:50:47,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 124.07692307692308) internal successors, (1613), 13 states have internal predecessors, (1613), 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) [2022-11-20 10:50:47,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 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) [2022-11-20 10:50:47,745 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 140.0) internal successors, (1960), 14 states have internal predecessors, (1960), 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) [2022-11-20 10:50:47,745 INFO L175 Difference]: Start difference. First operand has 171 places, 160 transitions, 775 flow. Second operand 13 states and 1613 transitions. [2022-11-20 10:50:47,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 277 transitions, 1683 flow [2022-11-20 10:50:48,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 277 transitions, 1657 flow, removed 13 selfloop flow, removed 0 redundant places. [2022-11-20 10:50:48,780 INFO L231 Difference]: Finished difference. Result has 189 places, 180 transitions, 1042 flow [2022-11-20 10:50:48,780 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=749, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1042, PETRI_PLACES=189, PETRI_TRANSITIONS=180} [2022-11-20 10:50:48,781 INFO L288 CegarLoopForPetriNet]: 147 programPoint places, 42 predicate places. [2022-11-20 10:50:48,782 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 180 transitions, 1042 flow [2022-11-20 10:50:48,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2022-11-20 10:50:48,782 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:50:48,783 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:50:48,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:50:48,783 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)] === [2022-11-20 10:50:48,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:50:48,784 INFO L85 PathProgramCache]: Analyzing trace with hash -2049462284, now seen corresponding path program 1 times [2022-11-20 10:50:48,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:50:48,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878796145] [2022-11-20 10:50:48,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:50:48,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:50:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:50:49,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:50:49,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:50:49,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878796145] [2022-11-20 10:50:49,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878796145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:50:49,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:50:49,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 10:50:49,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911274978] [2022-11-20 10:50:49,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:50:49,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 10:50:49,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:50:49,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 10:50:49,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:50:49,327 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 140 [2022-11-20 10:50:49,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 180 transitions, 1042 flow. Second operand has 8 states, 8 states have (on average 115.125) internal successors, (921), 8 states have internal predecessors, (921), 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) [2022-11-20 10:50:49,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:50:49,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 140 [2022-11-20 10:50:49,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:50:56,253 INFO L130 PetriNetUnfolder]: 18485/34100 cut-off events. [2022-11-20 10:50:56,253 INFO L131 PetriNetUnfolder]: For 115410/118257 co-relation queries the response was YES. [2022-11-20 10:50:56,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127328 conditions, 34100 events. 18485/34100 cut-off events. For 115410/118257 co-relation queries the response was YES. Maximal size of possible extension queue 2028. Compared 330573 event pairs, 1127 based on Foata normal form. 389/33475 useless extension candidates. Maximal degree in co-relation 127228. Up to 7106 conditions per place. [2022-11-20 10:50:56,570 INFO L137 encePairwiseOnDemand]: 129/140 looper letters, 114 selfloop transitions, 58 changer transitions 43/325 dead transitions. [2022-11-20 10:50:56,570 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 325 transitions, 2363 flow [2022-11-20 10:50:56,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 10:50:56,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-20 10:50:56,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1988 transitions. [2022-11-20 10:50:56,576 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8875 [2022-11-20 10:50:56,577 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1988 transitions. [2022-11-20 10:50:56,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1988 transitions. [2022-11-20 10:50:56,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:50:56,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1988 transitions. [2022-11-20 10:50:56,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 124.25) internal successors, (1988), 16 states have internal predecessors, (1988), 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) [2022-11-20 10:50:56,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 140.0) internal successors, (2380), 17 states have internal predecessors, (2380), 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) [2022-11-20 10:50:56,589 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 140.0) internal successors, (2380), 17 states have internal predecessors, (2380), 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) [2022-11-20 10:50:56,589 INFO L175 Difference]: Start difference. First operand has 189 places, 180 transitions, 1042 flow. Second operand 16 states and 1988 transitions. [2022-11-20 10:50:56,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 325 transitions, 2363 flow [2022-11-20 10:51:04,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 325 transitions, 2252 flow, removed 43 selfloop flow, removed 5 redundant places. [2022-11-20 10:51:04,953 INFO L231 Difference]: Finished difference. Result has 203 places, 198 transitions, 1316 flow [2022-11-20 10:51:04,953 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1316, PETRI_PLACES=203, PETRI_TRANSITIONS=198} [2022-11-20 10:51:04,954 INFO L288 CegarLoopForPetriNet]: 147 programPoint places, 56 predicate places. [2022-11-20 10:51:04,955 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 198 transitions, 1316 flow [2022-11-20 10:51:04,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 115.125) internal successors, (921), 8 states have internal predecessors, (921), 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) [2022-11-20 10:51:04,956 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:51:04,956 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:51:04,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:51:04,956 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 10:51:04,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:04,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1587562127, now seen corresponding path program 1 times [2022-11-20 10:51:04,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:51:04,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854994081] [2022-11-20 10:51:04,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:04,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:51:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:06,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:51:06,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:51:06,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854994081] [2022-11-20 10:51:06,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854994081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:51:06,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:51:06,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 10:51:06,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935470558] [2022-11-20 10:51:06,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:51:06,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-20 10:51:06,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:51:06,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-20 10:51:06,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-20 10:51:06,720 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 140 [2022-11-20 10:51:06,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 198 transitions, 1316 flow. Second operand has 11 states, 11 states have (on average 111.27272727272727) internal successors, (1224), 11 states have internal predecessors, (1224), 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) [2022-11-20 10:51:06,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:51:06,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 140 [2022-11-20 10:51:06,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:51:10,357 INFO L130 PetriNetUnfolder]: 6562/21257 cut-off events. [2022-11-20 10:51:10,357 INFO L131 PetriNetUnfolder]: For 104114/115081 co-relation queries the response was YES. [2022-11-20 10:51:10,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80980 conditions, 21257 events. 6562/21257 cut-off events. For 104114/115081 co-relation queries the response was YES. Maximal size of possible extension queue 2621. Compared 302195 event pairs, 212 based on Foata normal form. 11/20036 useless extension candidates. Maximal degree in co-relation 80868. Up to 5087 conditions per place. [2022-11-20 10:51:10,682 INFO L137 encePairwiseOnDemand]: 129/140 looper letters, 50 selfloop transitions, 12 changer transitions 14/247 dead transitions. [2022-11-20 10:51:10,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 247 transitions, 1668 flow [2022-11-20 10:51:10,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 10:51:10,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 10:51:10,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1273 transitions. [2022-11-20 10:51:10,687 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8266233766233766 [2022-11-20 10:51:10,688 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1273 transitions. [2022-11-20 10:51:10,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1273 transitions. [2022-11-20 10:51:10,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:51:10,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1273 transitions. [2022-11-20 10:51:10,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 115.72727272727273) internal successors, (1273), 11 states have internal predecessors, (1273), 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) [2022-11-20 10:51:10,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 140.0) internal successors, (1680), 12 states have internal predecessors, (1680), 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) [2022-11-20 10:51:10,699 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 140.0) internal successors, (1680), 12 states have internal predecessors, (1680), 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) [2022-11-20 10:51:10,699 INFO L175 Difference]: Start difference. First operand has 203 places, 198 transitions, 1316 flow. Second operand 11 states and 1273 transitions. [2022-11-20 10:51:10,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 247 transitions, 1668 flow [2022-11-20 10:51:23,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 247 transitions, 1311 flow, removed 136 selfloop flow, removed 17 redundant places. [2022-11-20 10:51:23,673 INFO L231 Difference]: Finished difference. Result has 196 places, 208 transitions, 1081 flow [2022-11-20 10:51:23,674 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=991, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1081, PETRI_PLACES=196, PETRI_TRANSITIONS=208} [2022-11-20 10:51:23,675 INFO L288 CegarLoopForPetriNet]: 147 programPoint places, 49 predicate places. [2022-11-20 10:51:23,675 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 208 transitions, 1081 flow [2022-11-20 10:51:23,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 111.27272727272727) internal successors, (1224), 11 states have internal predecessors, (1224), 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) [2022-11-20 10:51:23,676 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:51:23,676 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:51:23,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:51:23,677 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-20 10:51:23,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:51:23,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1273141917, now seen corresponding path program 2 times [2022-11-20 10:51:23,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:51:23,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387890572] [2022-11-20 10:51:23,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:51:23,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:51:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:51:24,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:51:24,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:51:24,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387890572] [2022-11-20 10:51:24,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387890572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:51:24,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:51:24,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-20 10:51:24,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263180746] [2022-11-20 10:51:24,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:51:24,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:51:24,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:51:24,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:51:24,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-20 10:51:24,130 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 140 [2022-11-20 10:51:24,131 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 208 transitions, 1081 flow. Second operand has 9 states, 9 states have (on average 115.22222222222223) internal successors, (1037), 9 states have internal predecessors, (1037), 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) [2022-11-20 10:51:24,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:51:24,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 140 [2022-11-20 10:51:24,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:51:35,019 INFO L130 PetriNetUnfolder]: 33154/63705 cut-off events. [2022-11-20 10:51:35,019 INFO L131 PetriNetUnfolder]: For 126557/132176 co-relation queries the response was YES. [2022-11-20 10:51:35,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211183 conditions, 63705 events. 33154/63705 cut-off events. For 126557/132176 co-relation queries the response was YES. Maximal size of possible extension queue 3928. Compared 707298 event pairs, 1034 based on Foata normal form. 644/63222 useless extension candidates. Maximal degree in co-relation 211147. Up to 7248 conditions per place. [2022-11-20 10:51:35,611 INFO L137 encePairwiseOnDemand]: 129/140 looper letters, 125 selfloop transitions, 63 changer transitions 87/385 dead transitions. [2022-11-20 10:51:35,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 385 transitions, 2808 flow [2022-11-20 10:51:35,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-20 10:51:35,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-20 10:51:35,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2312 transitions. [2022-11-20 10:51:35,618 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.869172932330827 [2022-11-20 10:51:35,619 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2312 transitions. [2022-11-20 10:51:35,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2312 transitions. [2022-11-20 10:51:35,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:51:35,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2312 transitions. [2022-11-20 10:51:35,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 121.6842105263158) internal successors, (2312), 19 states have internal predecessors, (2312), 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) [2022-11-20 10:51:35,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 140.0) internal successors, (2800), 20 states have internal predecessors, (2800), 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) [2022-11-20 10:51:35,634 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 140.0) internal successors, (2800), 20 states have internal predecessors, (2800), 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) [2022-11-20 10:51:35,635 INFO L175 Difference]: Start difference. First operand has 196 places, 208 transitions, 1081 flow. Second operand 19 states and 2312 transitions. [2022-11-20 10:51:35,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 385 transitions, 2808 flow