./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803f9a75-b786-4982-ae7e-b20beb20e21e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803f9a75-b786-4982-ae7e-b20beb20e21e/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803f9a75-b786-4982-ae7e-b20beb20e21e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803f9a75-b786-4982-ae7e-b20beb20e21e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803f9a75-b786-4982-ae7e-b20beb20e21e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803f9a75-b786-4982-ae7e-b20beb20e21e/bin/uautomizer-verify-aQ6SnzHsRB --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 40f0a1ff0b59c9897722e1cc89a9065b61569e5c28581990c7adb84261d57e0b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:11:49,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:11:49,748 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803f9a75-b786-4982-ae7e-b20beb20e21e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:11:49,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:11:49,759 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:11:49,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:11:49,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:11:49,799 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:11:49,800 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:11:49,800 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:11:49,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:11:49,800 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:11:49,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:11:49,801 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:11:49,801 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:11:49,801 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:11:49,801 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:11:49,801 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:11:49,801 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:11:49,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:11:49,802 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:11:49,802 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:11:49,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:11:49,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:11:49,802 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:11:49,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:11:49,802 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:11:49,802 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:11:49,802 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:11:49,803 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:11:49,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:11:49,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:11:49,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:11:49,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:11:49,803 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:11:49,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:11:49,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:11:49,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:11:49,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:11:49,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:11:49,805 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:11:49,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:11:49,806 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:11:49,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:11:49,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:11:49,806 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:11:49,806 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:11:49,806 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:11:49,806 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_803f9a75-b786-4982-ae7e-b20beb20e21e/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 40f0a1ff0b59c9897722e1cc89a9065b61569e5c28581990c7adb84261d57e0b [2024-11-28 05:11:50,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:11:50,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:11:50,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:11:50,119 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:11:50,120 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:11:50,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803f9a75-b786-4982-ae7e-b20beb20e21e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i [2024-11-28 05:11:53,281 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803f9a75-b786-4982-ae7e-b20beb20e21e/bin/uautomizer-verify-aQ6SnzHsRB/data/029b50e4c/5614891b99e7492e8c6cca00014c1a1a/FLAGc0cdbd05f [2024-11-28 05:11:53,600 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:11:53,601 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803f9a75-b786-4982-ae7e-b20beb20e21e/sv-benchmarks/c/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i [2024-11-28 05:11:53,617 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803f9a75-b786-4982-ae7e-b20beb20e21e/bin/uautomizer-verify-aQ6SnzHsRB/data/029b50e4c/5614891b99e7492e8c6cca00014c1a1a/FLAGc0cdbd05f [2024-11-28 05:11:53,642 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803f9a75-b786-4982-ae7e-b20beb20e21e/bin/uautomizer-verify-aQ6SnzHsRB/data/029b50e4c/5614891b99e7492e8c6cca00014c1a1a [2024-11-28 05:11:53,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:11:53,651 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:11:53,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:11:53,652 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:11:53,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:11:53,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:11:53" (1/1) ... [2024-11-28 05:11:53,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b50b7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:53, skipping insertion in model container [2024-11-28 05:11:53,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:11:53" (1/1) ... [2024-11-28 05:11:53,721 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:11:53,936 WARN L250 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_803f9a75-b786-4982-ae7e-b20beb20e21e/sv-benchmarks/c/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-11-28 05:11:54,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:11:54,291 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:11:54,303 WARN L250 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_803f9a75-b786-4982-ae7e-b20beb20e21e/sv-benchmarks/c/pthread-wmm/mix044_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-11-28 05:11:54,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:11:54,448 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:11:54,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:54 WrapperNode [2024-11-28 05:11:54,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:11:54,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:11:54,450 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:11:54,450 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:11:54,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:54" (1/1) ... [2024-11-28 05:11:54,471 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:54" (1/1) ... [2024-11-28 05:11:54,495 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 128 [2024-11-28 05:11:54,495 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:11:54,496 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:11:54,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:11:54,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:11:54,506 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:54" (1/1) ... [2024-11-28 05:11:54,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:54" (1/1) ... [2024-11-28 05:11:54,510 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:54" (1/1) ... [2024-11-28 05:11:54,538 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 05:11:54,539 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:54" (1/1) ... [2024-11-28 05:11:54,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:54" (1/1) ... [2024-11-28 05:11:54,561 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:54" (1/1) ... [2024-11-28 05:11:54,563 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:54" (1/1) ... [2024-11-28 05:11:54,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:54" (1/1) ... [2024-11-28 05:11:54,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:54" (1/1) ... [2024-11-28 05:11:54,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:54" (1/1) ... [2024-11-28 05:11:54,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:11:54,582 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:11:54,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:11:54,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:11:54,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:54" (1/1) ... [2024-11-28 05:11:54,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:11:54,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803f9a75-b786-4982-ae7e-b20beb20e21e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:54,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803f9a75-b786-4982-ae7e-b20beb20e21e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:11:54,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803f9a75-b786-4982-ae7e-b20beb20e21e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:11:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 05:11:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:11:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 05:11:54,663 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 05:11:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 05:11:54,663 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 05:11:54,663 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-28 05:11:54,663 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-28 05:11:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-28 05:11:54,664 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-28 05:11:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:11:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 05:11:54,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:11:54,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:11:54,670 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 05:11:54,846 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:11:54,849 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:11:55,362 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 05:11:55,362 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:11:55,754 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:11:55,756 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 05:11:55,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:11:55 BoogieIcfgContainer [2024-11-28 05:11:55,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:11:55,758 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:11:55,758 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:11:55,767 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:11:55,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:11:53" (1/3) ... [2024-11-28 05:11:55,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9f088e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:11:55, skipping insertion in model container [2024-11-28 05:11:55,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:11:54" (2/3) ... [2024-11-28 05:11:55,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9f088e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:11:55, skipping insertion in model container [2024-11-28 05:11:55,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:11:55" (3/3) ... [2024-11-28 05:11:55,770 INFO L128 eAbstractionObserver]: Analyzing ICFG mix044_power.oepc_pso.oepc_rmo.oepc.i [2024-11-28 05:11:55,789 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:11:55,791 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix044_power.oepc_pso.oepc_rmo.oepc.i that has 5 procedures, 50 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-28 05:11:55,791 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 05:11:55,880 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 05:11:55,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 116 flow [2024-11-28 05:11:55,978 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2024-11-28 05:11:55,984 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:11:55,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 1/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2024-11-28 05:11:55,995 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 50 transitions, 116 flow [2024-11-28 05:11:55,998 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 46 transitions, 104 flow [2024-11-28 05:11:56,010 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:11:56,033 INFO L333 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, 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;@11300f7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:11:56,033 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 05:11:56,039 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 05:11:56,039 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-28 05:11:56,039 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:11:56,039 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:11:56,042 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-28 05:11:56,044 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:11:56,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:56,050 INFO L85 PathProgramCache]: Analyzing trace with hash 11875706, now seen corresponding path program 1 times [2024-11-28 05:11:56,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:56,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891211689] [2024-11-28 05:11:56,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:56,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:56,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:11:56,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:56,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891211689] [2024-11-28 05:11:56,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891211689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:56,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:56,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 05:11:56,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693051028] [2024-11-28 05:11:56,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:56,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:11:56,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:56,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:11:56,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:11:56,815 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2024-11-28 05:11:56,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-11-28 05:11:56,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:11:56,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2024-11-28 05:11:56,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:11:58,140 INFO L124 PetriNetUnfolderBase]: 2495/3975 cut-off events. [2024-11-28 05:11:58,140 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-28 05:11:58,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7551 conditions, 3975 events. 2495/3975 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 24867 event pairs, 1647 based on Foata normal form. 135/4048 useless extension candidates. Maximal degree in co-relation 7539. Up to 2779 conditions per place. [2024-11-28 05:11:58,188 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 37 selfloop transitions, 2 changer transitions 2/62 dead transitions. [2024-11-28 05:11:58,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 62 transitions, 227 flow [2024-11-28 05:11:58,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:11:58,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 05:11:58,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-11-28 05:11:58,231 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7933333333333333 [2024-11-28 05:11:58,233 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 119 transitions. [2024-11-28 05:11:58,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 62 transitions, 227 flow [2024-11-28 05:11:58,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 62 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 05:11:58,248 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 98 flow [2024-11-28 05:11:58,251 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-11-28 05:11:58,256 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, -3 predicate places. [2024-11-28 05:11:58,256 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 98 flow [2024-11-28 05:11:58,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-11-28 05:11:58,257 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:11:58,257 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:58,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:11:58,257 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:11:58,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:58,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1594122599, now seen corresponding path program 1 times [2024-11-28 05:11:58,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:11:58,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650349678] [2024-11-28 05:11:58,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:58,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:11:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:58,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:11:58,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:11:58,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650349678] [2024-11-28 05:11:58,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650349678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:11:58,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:11:58,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:11:58,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444657512] [2024-11-28 05:11:58,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:11:58,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:11:58,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:11:58,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:11:58,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:11:58,823 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 50 [2024-11-28 05:11:58,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2024-11-28 05:11:58,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:11:58,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 50 [2024-11-28 05:11:58,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:12:05,692 INFO L124 PetriNetUnfolderBase]: 37338/53569 cut-off events. [2024-11-28 05:12:05,692 INFO L125 PetriNetUnfolderBase]: For 2337/2337 co-relation queries the response was YES. [2024-11-28 05:12:05,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106369 conditions, 53569 events. 37338/53569 cut-off events. For 2337/2337 co-relation queries the response was YES. Maximal size of possible extension queue 2266. Compared 386894 event pairs, 8394 based on Foata normal form. 0/52189 useless extension candidates. Maximal degree in co-relation 106359. Up to 18479 conditions per place. [2024-11-28 05:12:06,135 INFO L140 encePairwiseOnDemand]: 38/50 looper letters, 47 selfloop transitions, 8 changer transitions 103/170 dead transitions. [2024-11-28 05:12:06,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 170 transitions, 686 flow [2024-11-28 05:12:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:12:06,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 05:12:06,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 304 transitions. [2024-11-28 05:12:06,139 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6755555555555556 [2024-11-28 05:12:06,139 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 98 flow. Second operand 9 states and 304 transitions. [2024-11-28 05:12:06,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 170 transitions, 686 flow [2024-11-28 05:12:06,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 170 transitions, 668 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 05:12:06,149 INFO L231 Difference]: Finished difference. Result has 68 places, 49 transitions, 204 flow [2024-11-28 05:12:06,149 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=204, PETRI_PLACES=68, PETRI_TRANSITIONS=49} [2024-11-28 05:12:06,150 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 10 predicate places. [2024-11-28 05:12:06,150 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 49 transitions, 204 flow [2024-11-28 05:12:06,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2024-11-28 05:12:06,150 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:12:06,151 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:06,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:12:06,152 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:12:06,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:06,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1742321018, now seen corresponding path program 1 times [2024-11-28 05:12:06,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:06,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049092044] [2024-11-28 05:12:06,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:06,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:06,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:12:06,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:06,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049092044] [2024-11-28 05:12:06,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049092044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:06,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:06,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:12:06,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386316209] [2024-11-28 05:12:06,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:06,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:12:06,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:06,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:12:06,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:12:06,489 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-11-28 05:12:06,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 49 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-11-28 05:12:06,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:12:06,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-11-28 05:12:06,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:12:10,704 INFO L124 PetriNetUnfolderBase]: 22665/35322 cut-off events. [2024-11-28 05:12:10,705 INFO L125 PetriNetUnfolderBase]: For 42098/43186 co-relation queries the response was YES. [2024-11-28 05:12:10,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96857 conditions, 35322 events. 22665/35322 cut-off events. For 42098/43186 co-relation queries the response was YES. Maximal size of possible extension queue 1774. Compared 285429 event pairs, 6847 based on Foata normal form. 1074/35673 useless extension candidates. Maximal degree in co-relation 96839. Up to 23191 conditions per place. [2024-11-28 05:12:10,932 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 38 selfloop transitions, 5 changer transitions 51/114 dead transitions. [2024-11-28 05:12:10,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 114 transitions, 678 flow [2024-11-28 05:12:10,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:12:10,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 05:12:10,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 221 transitions. [2024-11-28 05:12:10,936 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6314285714285715 [2024-11-28 05:12:10,936 INFO L175 Difference]: Start difference. First operand has 68 places, 49 transitions, 204 flow. Second operand 7 states and 221 transitions. [2024-11-28 05:12:10,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 114 transitions, 678 flow [2024-11-28 05:12:11,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 114 transitions, 600 flow, removed 19 selfloop flow, removed 4 redundant places. [2024-11-28 05:12:11,152 INFO L231 Difference]: Finished difference. Result has 68 places, 53 transitions, 247 flow [2024-11-28 05:12:11,152 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=247, PETRI_PLACES=68, PETRI_TRANSITIONS=53} [2024-11-28 05:12:11,153 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 10 predicate places. [2024-11-28 05:12:11,153 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 53 transitions, 247 flow [2024-11-28 05:12:11,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-11-28 05:12:11,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:12:11,155 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:11,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:12:11,155 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:12:11,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:11,156 INFO L85 PathProgramCache]: Analyzing trace with hash 986484518, now seen corresponding path program 1 times [2024-11-28 05:12:11,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:11,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227627637] [2024-11-28 05:12:11,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:11,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:11,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:12:11,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:11,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227627637] [2024-11-28 05:12:11,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227627637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:11,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:11,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:12:11,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455647831] [2024-11-28 05:12:11,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:11,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:12:11,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:11,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:12:11,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:12:11,418 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 50 [2024-11-28 05:12:11,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 53 transitions, 247 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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) [2024-11-28 05:12:11,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:12:11,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 50 [2024-11-28 05:12:11,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:12:15,533 INFO L124 PetriNetUnfolderBase]: 19812/30461 cut-off events. [2024-11-28 05:12:15,534 INFO L125 PetriNetUnfolderBase]: For 47421/49810 co-relation queries the response was YES. [2024-11-28 05:12:15,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84117 conditions, 30461 events. 19812/30461 cut-off events. For 47421/49810 co-relation queries the response was YES. Maximal size of possible extension queue 1546. Compared 239596 event pairs, 5697 based on Foata normal form. 1254/30563 useless extension candidates. Maximal degree in co-relation 84096. Up to 16092 conditions per place. [2024-11-28 05:12:15,774 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 34 selfloop transitions, 3 changer transitions 43/106 dead transitions. [2024-11-28 05:12:15,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 106 transitions, 565 flow [2024-11-28 05:12:15,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:12:15,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 05:12:15,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 223 transitions. [2024-11-28 05:12:15,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6371428571428571 [2024-11-28 05:12:15,777 INFO L175 Difference]: Start difference. First operand has 68 places, 53 transitions, 247 flow. Second operand 7 states and 223 transitions. [2024-11-28 05:12:15,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 106 transitions, 565 flow [2024-11-28 05:12:16,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 106 transitions, 548 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-28 05:12:16,615 INFO L231 Difference]: Finished difference. Result has 72 places, 53 transitions, 253 flow [2024-11-28 05:12:16,615 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=253, PETRI_PLACES=72, PETRI_TRANSITIONS=53} [2024-11-28 05:12:16,616 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 14 predicate places. [2024-11-28 05:12:16,616 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 53 transitions, 253 flow [2024-11-28 05:12:16,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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) [2024-11-28 05:12:16,616 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:12:16,616 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:16,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:12:16,617 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:12:16,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:16,617 INFO L85 PathProgramCache]: Analyzing trace with hash -386627961, now seen corresponding path program 1 times [2024-11-28 05:12:16,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:16,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977106069] [2024-11-28 05:12:16,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:16,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:16,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:12:16,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:16,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977106069] [2024-11-28 05:12:16,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977106069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:16,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:16,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:12:16,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855654880] [2024-11-28 05:12:16,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:16,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:12:16,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:16,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:12:16,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:12:16,855 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 50 [2024-11-28 05:12:16,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 53 transitions, 253 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-11-28 05:12:16,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:12:16,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 50 [2024-11-28 05:12:16,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:12:21,480 INFO L124 PetriNetUnfolderBase]: 23814/34853 cut-off events. [2024-11-28 05:12:21,480 INFO L125 PetriNetUnfolderBase]: For 77076/77153 co-relation queries the response was YES. [2024-11-28 05:12:21,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105606 conditions, 34853 events. 23814/34853 cut-off events. For 77076/77153 co-relation queries the response was YES. Maximal size of possible extension queue 1392. Compared 245071 event pairs, 4621 based on Foata normal form. 785/35621 useless extension candidates. Maximal degree in co-relation 105581. Up to 14754 conditions per place. [2024-11-28 05:12:21,703 INFO L140 encePairwiseOnDemand]: 39/50 looper letters, 71 selfloop transitions, 14 changer transitions 84/181 dead transitions. [2024-11-28 05:12:21,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 181 transitions, 1145 flow [2024-11-28 05:12:21,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 05:12:21,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 05:12:21,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 316 transitions. [2024-11-28 05:12:21,705 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.632 [2024-11-28 05:12:21,705 INFO L175 Difference]: Start difference. First operand has 72 places, 53 transitions, 253 flow. Second operand 10 states and 316 transitions. [2024-11-28 05:12:21,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 181 transitions, 1145 flow [2024-11-28 05:12:22,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 181 transitions, 1101 flow, removed 17 selfloop flow, removed 6 redundant places. [2024-11-28 05:12:22,969 INFO L231 Difference]: Finished difference. Result has 80 places, 62 transitions, 390 flow [2024-11-28 05:12:22,969 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=390, PETRI_PLACES=80, PETRI_TRANSITIONS=62} [2024-11-28 05:12:22,970 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 22 predicate places. [2024-11-28 05:12:22,970 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 62 transitions, 390 flow [2024-11-28 05:12:22,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-11-28 05:12:22,970 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:12:22,970 INFO L206 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] [2024-11-28 05:12:22,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:12:22,971 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:12:22,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:22,971 INFO L85 PathProgramCache]: Analyzing trace with hash 878004890, now seen corresponding path program 1 times [2024-11-28 05:12:22,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:22,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014785018] [2024-11-28 05:12:22,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:22,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:23,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:12:23,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:23,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014785018] [2024-11-28 05:12:23,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014785018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:23,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:23,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:12:23,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184487984] [2024-11-28 05:12:23,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:23,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:12:23,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:23,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:12:23,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:12:23,177 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-11-28 05:12:23,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 62 transitions, 390 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2024-11-28 05:12:23,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:12:23,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-11-28 05:12:23,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:12:28,793 INFO L124 PetriNetUnfolderBase]: 31835/48286 cut-off events. [2024-11-28 05:12:28,793 INFO L125 PetriNetUnfolderBase]: For 83612/91674 co-relation queries the response was YES. [2024-11-28 05:12:29,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128510 conditions, 48286 events. 31835/48286 cut-off events. For 83612/91674 co-relation queries the response was YES. Maximal size of possible extension queue 2165. Compared 375185 event pairs, 5184 based on Foata normal form. 2286/48848 useless extension candidates. Maximal degree in co-relation 128480. Up to 24023 conditions per place. [2024-11-28 05:12:29,349 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 59 selfloop transitions, 6 changer transitions 0/98 dead transitions. [2024-11-28 05:12:29,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 98 transitions, 638 flow [2024-11-28 05:12:29,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:12:29,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 05:12:29,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2024-11-28 05:12:29,351 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.705 [2024-11-28 05:12:29,351 INFO L175 Difference]: Start difference. First operand has 80 places, 62 transitions, 390 flow. Second operand 4 states and 141 transitions. [2024-11-28 05:12:29,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 98 transitions, 638 flow [2024-11-28 05:12:30,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 98 transitions, 626 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-28 05:12:30,838 INFO L231 Difference]: Finished difference. Result has 77 places, 67 transitions, 424 flow [2024-11-28 05:12:30,838 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=424, PETRI_PLACES=77, PETRI_TRANSITIONS=67} [2024-11-28 05:12:30,839 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 19 predicate places. [2024-11-28 05:12:30,839 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 67 transitions, 424 flow [2024-11-28 05:12:30,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2024-11-28 05:12:30,839 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:12:30,840 INFO L206 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] [2024-11-28 05:12:30,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:12:30,840 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:12:30,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:30,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1788337135, now seen corresponding path program 1 times [2024-11-28 05:12:30,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:30,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884970690] [2024-11-28 05:12:30,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:30,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:12:31,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:31,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884970690] [2024-11-28 05:12:31,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884970690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:31,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:31,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:12:31,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714229504] [2024-11-28 05:12:31,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:31,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:12:31,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:31,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:12:31,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:12:31,332 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 50 [2024-11-28 05:12:31,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 67 transitions, 424 flow. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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) [2024-11-28 05:12:31,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:12:31,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 50 [2024-11-28 05:12:31,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:12:41,484 INFO L124 PetriNetUnfolderBase]: 48310/72107 cut-off events. [2024-11-28 05:12:41,484 INFO L125 PetriNetUnfolderBase]: For 165622/169132 co-relation queries the response was YES. [2024-11-28 05:12:41,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226931 conditions, 72107 events. 48310/72107 cut-off events. For 165622/169132 co-relation queries the response was YES. Maximal size of possible extension queue 3057. Compared 581038 event pairs, 14425 based on Foata normal form. 1395/69496 useless extension candidates. Maximal degree in co-relation 226899. Up to 24061 conditions per place. [2024-11-28 05:12:42,041 INFO L140 encePairwiseOnDemand]: 39/50 looper letters, 140 selfloop transitions, 33 changer transitions 2/192 dead transitions. [2024-11-28 05:12:42,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 192 transitions, 1376 flow [2024-11-28 05:12:42,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 05:12:42,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 05:12:42,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 313 transitions. [2024-11-28 05:12:42,043 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.626 [2024-11-28 05:12:42,043 INFO L175 Difference]: Start difference. First operand has 77 places, 67 transitions, 424 flow. Second operand 10 states and 313 transitions. [2024-11-28 05:12:42,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 192 transitions, 1376 flow [2024-11-28 05:12:42,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 192 transitions, 1364 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-28 05:12:42,518 INFO L231 Difference]: Finished difference. Result has 92 places, 87 transitions, 785 flow [2024-11-28 05:12:42,519 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=785, PETRI_PLACES=92, PETRI_TRANSITIONS=87} [2024-11-28 05:12:42,519 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 34 predicate places. [2024-11-28 05:12:42,519 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 87 transitions, 785 flow [2024-11-28 05:12:42,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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) [2024-11-28 05:12:42,520 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:12:42,520 INFO L206 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] [2024-11-28 05:12:42,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:12:42,520 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 05:12:42,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:42,521 INFO L85 PathProgramCache]: Analyzing trace with hash 172456642, now seen corresponding path program 1 times [2024-11-28 05:12:42,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:12:42,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972642074] [2024-11-28 05:12:42,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:42,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:42,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:12:42,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:12:42,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972642074] [2024-11-28 05:12:42,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972642074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:12:42,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:12:42,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:12:42,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214720222] [2024-11-28 05:12:42,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:12:42,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:12:42,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:12:42,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:12:42,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:12:42,981 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-11-28 05:12:42,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 87 transitions, 785 flow. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 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) [2024-11-28 05:12:42,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:12:42,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-11-28 05:12:42,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand