./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --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 b51bd5b35703bd543bead4074e6d14da7b357845ee956f8678aa2abe4dcc1210 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:13:08,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:13:08,420 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:13:08,432 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:13:08,436 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:13:08,474 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:13:08,476 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:13:08,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:13:08,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:13:08,484 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:13:08,486 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:13:08,486 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:13:08,487 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:13:08,489 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:13:08,489 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:13:08,490 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:13:08,490 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:13:08,491 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:13:08,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:13:08,492 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:13:08,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:13:08,493 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:13:08,494 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:13:08,494 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:13:08,494 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:13:08,496 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:13:08,496 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:13:08,497 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:13:08,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:13:08,498 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:13:08,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:13:08,500 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:13:08,500 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:13:08,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:13:08,509 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:13:08,510 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:13:08,510 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:13:08,510 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:13:08,510 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:13:08,511 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b51bd5b35703bd543bead4074e6d14da7b357845ee956f8678aa2abe4dcc1210 [2023-11-12 02:13:08,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:13:08,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:13:08,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:13:08,863 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:13:08,863 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:13:08,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2023-11-12 02:13:12,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:13:12,428 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:13:12,429 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2023-11-12 02:13:12,452 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/bin/uautomizer-verify-uTZkv6EMXl/data/9be7d900f/2ccdbcb47fb64879a34ce3f06877e28f/FLAGee184d217 [2023-11-12 02:13:12,469 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/bin/uautomizer-verify-uTZkv6EMXl/data/9be7d900f/2ccdbcb47fb64879a34ce3f06877e28f [2023-11-12 02:13:12,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:13:12,473 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:13:12,475 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:13:12,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:13:12,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:13:12,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:13:12" (1/1) ... [2023-11-12 02:13:12,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26876e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:12, skipping insertion in model container [2023-11-12 02:13:12,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:13:12" (1/1) ... [2023-11-12 02:13:12,581 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:13:12,825 WARN L240 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_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-11-12 02:13:13,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:13:13,243 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:13:13,259 WARN L240 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_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2023-11-12 02:13:13,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:13:13,458 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:13:13,459 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:13:13,468 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:13:13,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:13 WrapperNode [2023-11-12 02:13:13,468 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:13:13,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:13:13,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:13:13,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:13:13,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:13" (1/1) ... [2023-11-12 02:13:13,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:13" (1/1) ... [2023-11-12 02:13:13,598 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2023-11-12 02:13:13,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:13:13,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:13:13,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:13:13,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:13:13,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:13" (1/1) ... [2023-11-12 02:13:13,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:13" (1/1) ... [2023-11-12 02:13:13,629 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:13" (1/1) ... [2023-11-12 02:13:13,633 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:13" (1/1) ... [2023-11-12 02:13:13,645 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:13" (1/1) ... [2023-11-12 02:13:13,668 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:13" (1/1) ... [2023-11-12 02:13:13,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:13" (1/1) ... [2023-11-12 02:13:13,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:13" (1/1) ... [2023-11-12 02:13:13,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:13:13,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:13:13,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:13:13,686 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:13:13,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:13" (1/1) ... [2023-11-12 02:13:13,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:13:13,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:13:13,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:13:13,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ecfc7fe-bbbf-4ab5-813d-fa3585edad40/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:13:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:13:13,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:13:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:13:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:13:13,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:13:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:13:13,785 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:13:13,785 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:13:13,785 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:13:13,786 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 02:13:13,788 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 02:13:13,788 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 02:13:13,789 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 02:13:13,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:13:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:13:13,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:13:13,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:13:13,792 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:13:14,039 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:13:14,041 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:13:14,431 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:13:14,643 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:13:14,643 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:13:14,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:13:14 BoogieIcfgContainer [2023-11-12 02:13:14,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:13:14,648 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:13:14,648 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:13:14,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:13:14,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:13:12" (1/3) ... [2023-11-12 02:13:14,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603fe0cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:13:14, skipping insertion in model container [2023-11-12 02:13:14,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:13" (2/3) ... [2023-11-12 02:13:14,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603fe0cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:13:14, skipping insertion in model container [2023-11-12 02:13:14,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:13:14" (3/3) ... [2023-11-12 02:13:14,655 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_power.oepc_pso.oepc_rmo.oepc.i [2023-11-12 02:13:14,663 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:13:14,674 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:13:14,674 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-12 02:13:14,675 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:13:14,750 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:13:14,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 135 transitions, 286 flow [2023-11-12 02:13:14,954 INFO L124 PetriNetUnfolderBase]: 2/131 cut-off events. [2023-11-12 02:13:14,955 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:13:14,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 131 events. 2/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-11-12 02:13:14,962 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 135 transitions, 286 flow [2023-11-12 02:13:14,968 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 131 transitions, 274 flow [2023-11-12 02:13:14,971 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:13:14,981 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 131 transitions, 274 flow [2023-11-12 02:13:14,984 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 131 transitions, 274 flow [2023-11-12 02:13:14,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 131 transitions, 274 flow [2023-11-12 02:13:15,029 INFO L124 PetriNetUnfolderBase]: 2/131 cut-off events. [2023-11-12 02:13:15,030 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:13:15,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 131 events. 2/131 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-11-12 02:13:15,035 INFO L119 LiptonReduction]: Number of co-enabled transitions 3548 [2023-11-12 02:13:20,337 INFO L134 LiptonReduction]: Checked pairs total: 10114 [2023-11-12 02:13:20,338 INFO L136 LiptonReduction]: Total number of compositions: 114 [2023-11-12 02:13:20,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:13:20,360 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=LoopHeads, 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;@3c5d35ea, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:13:20,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-12 02:13:20,363 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:13:20,364 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-12 02:13:20,364 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:13:20,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:13:20,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:13:20,365 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-12 02:13:20,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:20,370 INFO L85 PathProgramCache]: Analyzing trace with hash 567241, now seen corresponding path program 1 times [2023-11-12 02:13:20,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:20,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115174344] [2023-11-12 02:13:20,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:20,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:20,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:20,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:20,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115174344] [2023-11-12 02:13:20,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115174344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:20,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:20,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:13:20,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322985284] [2023-11-12 02:13:20,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:20,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:13:20,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:20,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:13:20,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:13:20,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 249 [2023-11-12 02:13:20,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2023-11-12 02:13:20,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:13:20,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 249 [2023-11-12 02:13:20,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:13:22,339 INFO L124 PetriNetUnfolderBase]: 4903/7130 cut-off events. [2023-11-12 02:13:22,340 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2023-11-12 02:13:22,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13978 conditions, 7130 events. 4903/7130 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 43154 event pairs, 895 based on Foata normal form. 0/6788 useless extension candidates. Maximal degree in co-relation 13966. Up to 5335 conditions per place. [2023-11-12 02:13:22,402 INFO L140 encePairwiseOnDemand]: 245/249 looper letters, 41 selfloop transitions, 2 changer transitions 2/50 dead transitions. [2023-11-12 02:13:22,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 50 transitions, 211 flow [2023-11-12 02:13:22,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:13:22,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:13:22,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 405 transitions. [2023-11-12 02:13:22,425 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5421686746987951 [2023-11-12 02:13:22,426 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 405 transitions. [2023-11-12 02:13:22,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 405 transitions. [2023-11-12 02:13:22,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:13:22,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 405 transitions. [2023-11-12 02:13:22,439 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 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) [2023-11-12 02:13:22,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 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) [2023-11-12 02:13:22,446 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 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) [2023-11-12 02:13:22,448 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 76 flow. Second operand 3 states and 405 transitions. [2023-11-12 02:13:22,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 50 transitions, 211 flow [2023-11-12 02:13:22,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 50 transitions, 204 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:13:22,455 INFO L231 Difference]: Finished difference. Result has 41 places, 29 transitions, 70 flow [2023-11-12 02:13:22,457 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2023-11-12 02:13:22,463 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -3 predicate places. [2023-11-12 02:13:22,464 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 70 flow [2023-11-12 02:13:22,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2023-11-12 02:13:22,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:13:22,465 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:22,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:13:22,465 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)] === [2023-11-12 02:13:22,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:22,466 INFO L85 PathProgramCache]: Analyzing trace with hash -712211269, now seen corresponding path program 1 times [2023-11-12 02:13:22,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:22,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421399619] [2023-11-12 02:13:22,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:22,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:22,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:22,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:22,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421399619] [2023-11-12 02:13:22,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421399619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:22,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:22,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:13:22,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788953189] [2023-11-12 02:13:22,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:22,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:13:22,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:22,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:13:22,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:13:22,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 249 [2023-11-12 02:13:22,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2023-11-12 02:13:22,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:13:22,901 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 249 [2023-11-12 02:13:22,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:13:26,906 INFO L124 PetriNetUnfolderBase]: 20021/27147 cut-off events. [2023-11-12 02:13:26,907 INFO L125 PetriNetUnfolderBase]: For 1238/1238 co-relation queries the response was YES. [2023-11-12 02:13:26,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56149 conditions, 27147 events. 20021/27147 cut-off events. For 1238/1238 co-relation queries the response was YES. Maximal size of possible extension queue 837. Compared 145783 event pairs, 6977 based on Foata normal form. 760/27907 useless extension candidates. Maximal degree in co-relation 56139. Up to 16658 conditions per place. [2023-11-12 02:13:27,088 INFO L140 encePairwiseOnDemand]: 239/249 looper letters, 44 selfloop transitions, 9 changer transitions 0/53 dead transitions. [2023-11-12 02:13:27,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 53 transitions, 230 flow [2023-11-12 02:13:27,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:13:27,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:13:27,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 375 transitions. [2023-11-12 02:13:27,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5020080321285141 [2023-11-12 02:13:27,092 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 375 transitions. [2023-11-12 02:13:27,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 375 transitions. [2023-11-12 02:13:27,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:13:27,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 375 transitions. [2023-11-12 02:13:27,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-11-12 02:13:27,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 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) [2023-11-12 02:13:27,103 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 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) [2023-11-12 02:13:27,104 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 70 flow. Second operand 3 states and 375 transitions. [2023-11-12 02:13:27,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 53 transitions, 230 flow [2023-11-12 02:13:27,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 53 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:13:27,108 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 136 flow [2023-11-12 02:13:27,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2023-11-12 02:13:27,110 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, -2 predicate places. [2023-11-12 02:13:27,110 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 136 flow [2023-11-12 02:13:27,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2023-11-12 02:13:27,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:13:27,111 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:27,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:13:27,111 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)] === [2023-11-12 02:13:27,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:27,112 INFO L85 PathProgramCache]: Analyzing trace with hash -603714968, now seen corresponding path program 1 times [2023-11-12 02:13:27,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:27,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833926715] [2023-11-12 02:13:27,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:27,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:27,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:27,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:27,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833926715] [2023-11-12 02:13:27,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833926715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:27,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:27,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:13:27,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945517938] [2023-11-12 02:13:27,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:27,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:13:27,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:27,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:13:27,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:13:27,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 249 [2023-11-12 02:13:27,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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) [2023-11-12 02:13:27,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:13:27,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 249 [2023-11-12 02:13:27,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:13:30,988 INFO L124 PetriNetUnfolderBase]: 19693/26709 cut-off events. [2023-11-12 02:13:30,988 INFO L125 PetriNetUnfolderBase]: For 10981/10981 co-relation queries the response was YES. [2023-11-12 02:13:31,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68341 conditions, 26709 events. 19693/26709 cut-off events. For 10981/10981 co-relation queries the response was YES. Maximal size of possible extension queue 826. Compared 141899 event pairs, 1596 based on Foata normal form. 50/26759 useless extension candidates. Maximal degree in co-relation 68329. Up to 15452 conditions per place. [2023-11-12 02:13:31,139 INFO L140 encePairwiseOnDemand]: 239/249 looper letters, 59 selfloop transitions, 13 changer transitions 0/72 dead transitions. [2023-11-12 02:13:31,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 72 transitions, 388 flow [2023-11-12 02:13:31,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:13:31,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:13:31,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 496 transitions. [2023-11-12 02:13:31,145 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4979919678714859 [2023-11-12 02:13:31,145 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 496 transitions. [2023-11-12 02:13:31,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 496 transitions. [2023-11-12 02:13:31,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:13:31,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 496 transitions. [2023-11-12 02:13:31,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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) [2023-11-12 02:13:31,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 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) [2023-11-12 02:13:31,154 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 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) [2023-11-12 02:13:31,154 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 136 flow. Second operand 4 states and 496 transitions. [2023-11-12 02:13:31,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 72 transitions, 388 flow [2023-11-12 02:13:31,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 72 transitions, 358 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:13:31,298 INFO L231 Difference]: Finished difference. Result has 46 places, 45 transitions, 216 flow [2023-11-12 02:13:31,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=216, PETRI_PLACES=46, PETRI_TRANSITIONS=45} [2023-11-12 02:13:31,299 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 2 predicate places. [2023-11-12 02:13:31,300 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 45 transitions, 216 flow [2023-11-12 02:13:31,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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) [2023-11-12 02:13:31,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:13:31,301 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:31,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:13:31,302 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)] === [2023-11-12 02:13:31,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:31,302 INFO L85 PathProgramCache]: Analyzing trace with hash -603714844, now seen corresponding path program 1 times [2023-11-12 02:13:31,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:31,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862394983] [2023-11-12 02:13:31,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:31,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:31,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:31,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:31,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862394983] [2023-11-12 02:13:31,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862394983] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:31,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:31,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:13:31,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782956905] [2023-11-12 02:13:31,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:31,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:13:31,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:31,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:13:31,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:13:31,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 249 [2023-11-12 02:13:31,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 45 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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) [2023-11-12 02:13:31,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:13:31,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 249 [2023-11-12 02:13:31,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:13:34,516 INFO L124 PetriNetUnfolderBase]: 19365/26271 cut-off events. [2023-11-12 02:13:34,516 INFO L125 PetriNetUnfolderBase]: For 22542/22542 co-relation queries the response was YES. [2023-11-12 02:13:34,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73242 conditions, 26271 events. 19365/26271 cut-off events. For 22542/22542 co-relation queries the response was YES. Maximal size of possible extension queue 803. Compared 140280 event pairs, 3869 based on Foata normal form. 50/26321 useless extension candidates. Maximal degree in co-relation 73227. Up to 15649 conditions per place. [2023-11-12 02:13:34,645 INFO L140 encePairwiseOnDemand]: 239/249 looper letters, 68 selfloop transitions, 20 changer transitions 0/88 dead transitions. [2023-11-12 02:13:34,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 88 transitions, 548 flow [2023-11-12 02:13:34,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:13:34,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:13:34,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 502 transitions. [2023-11-12 02:13:34,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5040160642570282 [2023-11-12 02:13:34,649 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 502 transitions. [2023-11-12 02:13:34,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 502 transitions. [2023-11-12 02:13:34,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:13:34,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 502 transitions. [2023-11-12 02:13:34,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.5) internal successors, (502), 4 states have internal predecessors, (502), 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) [2023-11-12 02:13:34,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 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) [2023-11-12 02:13:34,655 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 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) [2023-11-12 02:13:34,656 INFO L175 Difference]: Start difference. First operand has 46 places, 45 transitions, 216 flow. Second operand 4 states and 502 transitions. [2023-11-12 02:13:34,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 88 transitions, 548 flow [2023-11-12 02:13:34,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 88 transitions, 548 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:13:34,738 INFO L231 Difference]: Finished difference. Result has 52 places, 55 transitions, 382 flow [2023-11-12 02:13:34,739 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=382, PETRI_PLACES=52, PETRI_TRANSITIONS=55} [2023-11-12 02:13:34,739 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 8 predicate places. [2023-11-12 02:13:34,740 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 55 transitions, 382 flow [2023-11-12 02:13:34,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 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) [2023-11-12 02:13:34,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:13:34,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:34,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:13:34,741 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)] === [2023-11-12 02:13:34,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:34,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1535296809, now seen corresponding path program 1 times [2023-11-12 02:13:34,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:34,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662904110] [2023-11-12 02:13:34,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:34,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:34,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:34,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:34,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662904110] [2023-11-12 02:13:34,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662904110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:34,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:34,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:13:34,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117908130] [2023-11-12 02:13:34,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:34,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:13:34,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:34,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:13:34,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:13:34,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 249 [2023-11-12 02:13:34,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 55 transitions, 382 flow. Second operand has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 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) [2023-11-12 02:13:34,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:13:34,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 249 [2023-11-12 02:13:34,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:13:38,245 INFO L124 PetriNetUnfolderBase]: 18282/24814 cut-off events. [2023-11-12 02:13:38,245 INFO L125 PetriNetUnfolderBase]: For 53506/53506 co-relation queries the response was YES. [2023-11-12 02:13:38,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78418 conditions, 24814 events. 18282/24814 cut-off events. For 53506/53506 co-relation queries the response was YES. Maximal size of possible extension queue 737. Compared 128367 event pairs, 4648 based on Foata normal form. 215/25029 useless extension candidates. Maximal degree in co-relation 78398. Up to 10607 conditions per place. [2023-11-12 02:13:38,390 INFO L140 encePairwiseOnDemand]: 240/249 looper letters, 78 selfloop transitions, 14 changer transitions 0/92 dead transitions. [2023-11-12 02:13:38,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 92 transitions, 746 flow [2023-11-12 02:13:38,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:13:38,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:13:38,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 491 transitions. [2023-11-12 02:13:38,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4929718875502008 [2023-11-12 02:13:38,394 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 491 transitions. [2023-11-12 02:13:38,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 491 transitions. [2023-11-12 02:13:38,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:13:38,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 491 transitions. [2023-11-12 02:13:38,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.75) internal successors, (491), 4 states have internal predecessors, (491), 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) [2023-11-12 02:13:38,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 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) [2023-11-12 02:13:38,402 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 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) [2023-11-12 02:13:38,402 INFO L175 Difference]: Start difference. First operand has 52 places, 55 transitions, 382 flow. Second operand 4 states and 491 transitions. [2023-11-12 02:13:38,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 92 transitions, 746 flow [2023-11-12 02:13:38,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 92 transitions, 746 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:13:38,516 INFO L231 Difference]: Finished difference. Result has 58 places, 63 transitions, 550 flow [2023-11-12 02:13:38,516 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=550, PETRI_PLACES=58, PETRI_TRANSITIONS=63} [2023-11-12 02:13:38,519 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 14 predicate places. [2023-11-12 02:13:38,520 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 63 transitions, 550 flow [2023-11-12 02:13:38,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 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) [2023-11-12 02:13:38,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:13:38,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:38,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:13:38,521 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)] === [2023-11-12 02:13:38,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:38,522 INFO L85 PathProgramCache]: Analyzing trace with hash 549538203, now seen corresponding path program 1 times [2023-11-12 02:13:38,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:38,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936002844] [2023-11-12 02:13:38,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:38,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:38,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:38,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:38,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936002844] [2023-11-12 02:13:38,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936002844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:38,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:38,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:13:38,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797373086] [2023-11-12 02:13:38,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:38,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:13:38,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:38,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:13:38,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:13:38,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 249 [2023-11-12 02:13:38,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 63 transitions, 550 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2023-11-12 02:13:38,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:13:38,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 249 [2023-11-12 02:13:38,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:13:41,210 INFO L124 PetriNetUnfolderBase]: 12469/18075 cut-off events. [2023-11-12 02:13:41,210 INFO L125 PetriNetUnfolderBase]: For 56057/57418 co-relation queries the response was YES. [2023-11-12 02:13:41,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58103 conditions, 18075 events. 12469/18075 cut-off events. For 56057/57418 co-relation queries the response was YES. Maximal size of possible extension queue 759. Compared 111820 event pairs, 3565 based on Foata normal form. 516/17998 useless extension candidates. Maximal degree in co-relation 58078. Up to 11468 conditions per place. [2023-11-12 02:13:41,403 INFO L140 encePairwiseOnDemand]: 246/249 looper letters, 57 selfloop transitions, 5 changer transitions 0/83 dead transitions. [2023-11-12 02:13:41,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 83 transitions, 764 flow [2023-11-12 02:13:41,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:13:41,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:13:41,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 396 transitions. [2023-11-12 02:13:41,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5301204819277109 [2023-11-12 02:13:41,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 396 transitions. [2023-11-12 02:13:41,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 396 transitions. [2023-11-12 02:13:41,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:13:41,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 396 transitions. [2023-11-12 02:13:41,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 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) [2023-11-12 02:13:41,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 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) [2023-11-12 02:13:41,412 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 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) [2023-11-12 02:13:41,412 INFO L175 Difference]: Start difference. First operand has 58 places, 63 transitions, 550 flow. Second operand 3 states and 396 transitions. [2023-11-12 02:13:41,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 83 transitions, 764 flow [2023-11-12 02:13:41,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 83 transitions, 760 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:13:41,590 INFO L231 Difference]: Finished difference. Result has 60 places, 63 transitions, 563 flow [2023-11-12 02:13:41,591 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=563, PETRI_PLACES=60, PETRI_TRANSITIONS=63} [2023-11-12 02:13:41,593 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 16 predicate places. [2023-11-12 02:13:41,594 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 63 transitions, 563 flow [2023-11-12 02:13:41,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2023-11-12 02:13:41,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:13:41,595 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:41,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:13:41,595 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)] === [2023-11-12 02:13:41,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:41,596 INFO L85 PathProgramCache]: Analyzing trace with hash -144202128, now seen corresponding path program 1 times [2023-11-12 02:13:41,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:41,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433778306] [2023-11-12 02:13:41,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:41,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:41,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:41,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:41,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433778306] [2023-11-12 02:13:41,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433778306] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:41,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:41,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:13:41,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153317997] [2023-11-12 02:13:41,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:41,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:13:41,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:41,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:13:41,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:13:41,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 249 [2023-11-12 02:13:41,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 63 transitions, 563 flow. Second operand has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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) [2023-11-12 02:13:41,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:13:41,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 249 [2023-11-12 02:13:41,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:13:44,217 INFO L124 PetriNetUnfolderBase]: 10386/15524 cut-off events. [2023-11-12 02:13:44,217 INFO L125 PetriNetUnfolderBase]: For 40187/43125 co-relation queries the response was YES. [2023-11-12 02:13:44,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46861 conditions, 15524 events. 10386/15524 cut-off events. For 40187/43125 co-relation queries the response was YES. Maximal size of possible extension queue 825. Compared 101300 event pairs, 1770 based on Foata normal form. 1645/16693 useless extension candidates. Maximal degree in co-relation 46834. Up to 9055 conditions per place. [2023-11-12 02:13:44,314 INFO L140 encePairwiseOnDemand]: 242/249 looper letters, 112 selfloop transitions, 10 changer transitions 0/147 dead transitions. [2023-11-12 02:13:44,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 147 transitions, 1405 flow [2023-11-12 02:13:44,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:13:44,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:13:44,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 637 transitions. [2023-11-12 02:13:44,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5116465863453815 [2023-11-12 02:13:44,319 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 637 transitions. [2023-11-12 02:13:44,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 637 transitions. [2023-11-12 02:13:44,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:13:44,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 637 transitions. [2023-11-12 02:13:44,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.4) internal successors, (637), 5 states have internal predecessors, (637), 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) [2023-11-12 02:13:44,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 249.0) internal successors, (1494), 6 states have internal predecessors, (1494), 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) [2023-11-12 02:13:44,326 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 249.0) internal successors, (1494), 6 states have internal predecessors, (1494), 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) [2023-11-12 02:13:44,327 INFO L175 Difference]: Start difference. First operand has 60 places, 63 transitions, 563 flow. Second operand 5 states and 637 transitions. [2023-11-12 02:13:44,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 147 transitions, 1405 flow [2023-11-12 02:13:44,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 147 transitions, 1395 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:13:44,398 INFO L231 Difference]: Finished difference. Result has 65 places, 72 transitions, 628 flow [2023-11-12 02:13:44,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=628, PETRI_PLACES=65, PETRI_TRANSITIONS=72} [2023-11-12 02:13:44,399 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 21 predicate places. [2023-11-12 02:13:44,399 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 72 transitions, 628 flow [2023-11-12 02:13:44,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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) [2023-11-12 02:13:44,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:13:44,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:44,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:13:44,400 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)] === [2023-11-12 02:13:44,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:44,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1976170858, now seen corresponding path program 1 times [2023-11-12 02:13:44,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:44,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130117188] [2023-11-12 02:13:44,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:44,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:44,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:44,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130117188] [2023-11-12 02:13:44,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130117188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:44,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:44,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:13:44,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705949138] [2023-11-12 02:13:44,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:44,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:13:44,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:44,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:13:44,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:13:44,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 249 [2023-11-12 02:13:44,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 72 transitions, 628 flow. Second operand has 5 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 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) [2023-11-12 02:13:44,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:13:44,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 249 [2023-11-12 02:13:44,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:13:46,703 INFO L124 PetriNetUnfolderBase]: 8400/12896 cut-off events. [2023-11-12 02:13:46,703 INFO L125 PetriNetUnfolderBase]: For 36642/39017 co-relation queries the response was YES. [2023-11-12 02:13:46,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46725 conditions, 12896 events. 8400/12896 cut-off events. For 36642/39017 co-relation queries the response was YES. Maximal size of possible extension queue 693. Compared 86475 event pairs, 963 based on Foata normal form. 1154/13642 useless extension candidates. Maximal degree in co-relation 46695. Up to 3795 conditions per place. [2023-11-12 02:13:46,780 INFO L140 encePairwiseOnDemand]: 242/249 looper letters, 150 selfloop transitions, 19 changer transitions 0/194 dead transitions. [2023-11-12 02:13:46,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 194 transitions, 1886 flow [2023-11-12 02:13:46,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:13:46,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:13:46,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 894 transitions. [2023-11-12 02:13:46,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5129087779690189 [2023-11-12 02:13:46,786 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 894 transitions. [2023-11-12 02:13:46,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 894 transitions. [2023-11-12 02:13:46,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:13:46,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 894 transitions. [2023-11-12 02:13:46,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.71428571428571) internal successors, (894), 7 states have internal predecessors, (894), 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) [2023-11-12 02:13:46,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 249.0) internal successors, (1992), 8 states have internal predecessors, (1992), 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) [2023-11-12 02:13:46,795 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 249.0) internal successors, (1992), 8 states have internal predecessors, (1992), 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) [2023-11-12 02:13:46,796 INFO L175 Difference]: Start difference. First operand has 65 places, 72 transitions, 628 flow. Second operand 7 states and 894 transitions. [2023-11-12 02:13:46,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 194 transitions, 1886 flow [2023-11-12 02:13:46,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 194 transitions, 1881 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:13:46,904 INFO L231 Difference]: Finished difference. Result has 73 places, 81 transitions, 757 flow [2023-11-12 02:13:46,904 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=623, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=757, PETRI_PLACES=73, PETRI_TRANSITIONS=81} [2023-11-12 02:13:46,905 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 29 predicate places. [2023-11-12 02:13:46,905 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 81 transitions, 757 flow [2023-11-12 02:13:46,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.2) internal successors, (581), 5 states have internal predecessors, (581), 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) [2023-11-12 02:13:46,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:13:46,906 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:46,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:13:46,907 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)] === [2023-11-12 02:13:46,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:46,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1265125474, now seen corresponding path program 1 times [2023-11-12 02:13:46,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:46,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393963388] [2023-11-12 02:13:46,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:46,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:47,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:47,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:47,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393963388] [2023-11-12 02:13:47,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393963388] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:47,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:47,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:13:47,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767652017] [2023-11-12 02:13:47,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:47,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:13:47,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:47,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:13:47,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:13:47,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 249 [2023-11-12 02:13:47,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 81 transitions, 757 flow. Second operand has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:13:47,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:13:47,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 249 [2023-11-12 02:13:47,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:13:49,225 INFO L124 PetriNetUnfolderBase]: 7886/12093 cut-off events. [2023-11-12 02:13:49,226 INFO L125 PetriNetUnfolderBase]: For 42449/44742 co-relation queries the response was YES. [2023-11-12 02:13:49,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49412 conditions, 12093 events. 7886/12093 cut-off events. For 42449/44742 co-relation queries the response was YES. Maximal size of possible extension queue 689. Compared 80761 event pairs, 856 based on Foata normal form. 618/12312 useless extension candidates. Maximal degree in co-relation 49378. Up to 3634 conditions per place. [2023-11-12 02:13:49,330 INFO L140 encePairwiseOnDemand]: 242/249 looper letters, 164 selfloop transitions, 28 changer transitions 12/229 dead transitions. [2023-11-12 02:13:49,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 229 transitions, 2285 flow [2023-11-12 02:13:49,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:13:49,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-12 02:13:49,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1149 transitions. [2023-11-12 02:13:49,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5127175368139224 [2023-11-12 02:13:49,336 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1149 transitions. [2023-11-12 02:13:49,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1149 transitions. [2023-11-12 02:13:49,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:13:49,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1149 transitions. [2023-11-12 02:13:49,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 127.66666666666667) internal successors, (1149), 9 states have internal predecessors, (1149), 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) [2023-11-12 02:13:49,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 249.0) internal successors, (2490), 10 states have internal predecessors, (2490), 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) [2023-11-12 02:13:49,350 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 249.0) internal successors, (2490), 10 states have internal predecessors, (2490), 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) [2023-11-12 02:13:49,350 INFO L175 Difference]: Start difference. First operand has 73 places, 81 transitions, 757 flow. Second operand 9 states and 1149 transitions. [2023-11-12 02:13:49,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 229 transitions, 2285 flow [2023-11-12 02:13:50,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 229 transitions, 2235 flow, removed 17 selfloop flow, removed 3 redundant places. [2023-11-12 02:13:50,380 INFO L231 Difference]: Finished difference. Result has 81 places, 90 transitions, 885 flow [2023-11-12 02:13:50,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=885, PETRI_PLACES=81, PETRI_TRANSITIONS=90} [2023-11-12 02:13:50,382 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 37 predicate places. [2023-11-12 02:13:50,382 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 90 transitions, 885 flow [2023-11-12 02:13:50,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:13:50,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:13:50,383 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:50,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:13:50,384 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-12 02:13:50,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:50,384 INFO L85 PathProgramCache]: Analyzing trace with hash 782234570, now seen corresponding path program 1 times [2023-11-12 02:13:50,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:50,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141135320] [2023-11-12 02:13:50,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:50,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:51,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:51,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:51,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141135320] [2023-11-12 02:13:51,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141135320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:51,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:51,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:13:51,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437164784] [2023-11-12 02:13:51,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:51,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:13:51,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:51,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:13:51,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:13:51,214 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 249 [2023-11-12 02:13:51,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 90 transitions, 885 flow. Second operand has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 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) [2023-11-12 02:13:51,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:13:51,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 249 [2023-11-12 02:13:51,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:13:54,336 INFO L124 PetriNetUnfolderBase]: 13626/21511 cut-off events. [2023-11-12 02:13:54,336 INFO L125 PetriNetUnfolderBase]: For 97796/99536 co-relation queries the response was YES. [2023-11-12 02:13:54,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92639 conditions, 21511 events. 13626/21511 cut-off events. For 97796/99536 co-relation queries the response was YES. Maximal size of possible extension queue 1170. Compared 161777 event pairs, 3122 based on Foata normal form. 444/21489 useless extension candidates. Maximal degree in co-relation 92602. Up to 11150 conditions per place. [2023-11-12 02:13:54,514 INFO L140 encePairwiseOnDemand]: 241/249 looper letters, 148 selfloop transitions, 13 changer transitions 76/262 dead transitions. [2023-11-12 02:13:54,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 262 transitions, 2907 flow [2023-11-12 02:13:54,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:13:54,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:13:54,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 775 transitions. [2023-11-12 02:13:54,521 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5187416331994645 [2023-11-12 02:13:54,521 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 775 transitions. [2023-11-12 02:13:54,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 775 transitions. [2023-11-12 02:13:54,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:13:54,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 775 transitions. [2023-11-12 02:13:54,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.16666666666666) internal successors, (775), 6 states have internal predecessors, (775), 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) [2023-11-12 02:13:54,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 249.0) internal successors, (1743), 7 states have internal predecessors, (1743), 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) [2023-11-12 02:13:54,529 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 249.0) internal successors, (1743), 7 states have internal predecessors, (1743), 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) [2023-11-12 02:13:54,529 INFO L175 Difference]: Start difference. First operand has 81 places, 90 transitions, 885 flow. Second operand 6 states and 775 transitions. [2023-11-12 02:13:54,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 262 transitions, 2907 flow [2023-11-12 02:13:59,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 262 transitions, 2470 flow, removed 154 selfloop flow, removed 4 redundant places. [2023-11-12 02:13:59,023 INFO L231 Difference]: Finished difference. Result has 85 places, 102 transitions, 926 flow [2023-11-12 02:13:59,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=249, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=926, PETRI_PLACES=85, PETRI_TRANSITIONS=102} [2023-11-12 02:13:59,024 INFO L281 CegarLoopForPetriNet]: 44 programPoint places, 41 predicate places. [2023-11-12 02:13:59,024 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 102 transitions, 926 flow [2023-11-12 02:13:59,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 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) [2023-11-12 02:13:59,025 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:13:59,025 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:59,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:13:59,025 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-12 02:13:59,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:59,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1108905312, now seen corresponding path program 2 times [2023-11-12 02:13:59,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:59,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286109890] [2023-11-12 02:13:59,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:59,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:59,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:00,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:00,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:14:00,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286109890] [2023-11-12 02:14:00,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286109890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:14:00,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:14:00,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:14:00,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561888783] [2023-11-12 02:14:00,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:14:00,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:14:00,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:14:00,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:14:00,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:14:00,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 249 [2023-11-12 02:14:00,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 102 transitions, 926 flow. Second operand has 7 states, 7 states have (on average 105.57142857142857) internal successors, (739), 7 states have internal predecessors, (739), 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) [2023-11-12 02:14:00,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:14:00,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 249 [2023-11-12 02:14:00,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand