./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_6cffe908-a4a2-461d-aaba-beaf969fd373/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cffe908-a4a2-461d-aaba-beaf969fd373/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cffe908-a4a2-461d-aaba-beaf969fd373/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cffe908-a4a2-461d-aaba-beaf969fd373/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cffe908-a4a2-461d-aaba-beaf969fd373/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cffe908-a4a2-461d-aaba-beaf969fd373/bin/uautomizer-verify-4GaUIPS5ZU --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 a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:00:22,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:00:22,666 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cffe908-a4a2-461d-aaba-beaf969fd373/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-31 22:00:22,676 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:00:22,677 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:00:22,733 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:00:22,733 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:00:22,734 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:00:22,735 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:00:22,736 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:00:22,737 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:00:22,738 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:00:22,739 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:00:22,739 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:00:22,742 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:00:22,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:00:22,743 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:00:22,743 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:00:22,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:00:22,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:00:22,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:00:22,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:00:22,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:00:22,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:00:22,749 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:00:22,749 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:00:22,750 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:00:22,750 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:00:22,750 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:00:22,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:00:22,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:00:22,772 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:00:22,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:22,772 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:00:22,773 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:00:22,773 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:00:22,773 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:00:22,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:00:22,774 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:00:22,774 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:00:22,774 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:00:22,776 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:00:22,776 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_6cffe908-a4a2-461d-aaba-beaf969fd373/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cffe908-a4a2-461d-aaba-beaf969fd373/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 [2024-10-31 22:00:23,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:00:23,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:00:23,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:00:23,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:00:23,109 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:00:23,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cffe908-a4a2-461d-aaba-beaf969fd373/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i Unable to find full path for "g++" [2024-10-31 22:00:25,165 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:00:25,407 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:00:25,408 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cffe908-a4a2-461d-aaba-beaf969fd373/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-10-31 22:00:25,439 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cffe908-a4a2-461d-aaba-beaf969fd373/bin/uautomizer-verify-4GaUIPS5ZU/data/8b13d1301/f9b3d28c86d04dea955293f46c69d3c1/FLAG52796f4bc [2024-10-31 22:00:25,729 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cffe908-a4a2-461d-aaba-beaf969fd373/bin/uautomizer-verify-4GaUIPS5ZU/data/8b13d1301/f9b3d28c86d04dea955293f46c69d3c1 [2024-10-31 22:00:25,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:00:25,733 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:00:25,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:25,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:00:25,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:00:25,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:25" (1/1) ... [2024-10-31 22:00:25,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@818fdf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:25, skipping insertion in model container [2024-10-31 22:00:25,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:00:25" (1/1) ... [2024-10-31 22:00:25,792 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:00:26,039 WARN L251 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_6cffe908-a4a2-461d-aaba-beaf969fd373/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2024-10-31 22:00:26,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:26,425 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:00:26,442 WARN L251 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_6cffe908-a4a2-461d-aaba-beaf969fd373/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2024-10-31 22:00:26,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:00:26,582 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:00:26,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:26 WrapperNode [2024-10-31 22:00:26,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:00:26,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:26,585 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:00:26,585 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:00:26,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:26" (1/1) ... [2024-10-31 22:00:26,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:26" (1/1) ... [2024-10-31 22:00:26,660 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2024-10-31 22:00:26,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:00:26,665 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:00:26,665 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:00:26,665 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:00:26,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:26" (1/1) ... [2024-10-31 22:00:26,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:26" (1/1) ... [2024-10-31 22:00:26,687 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:26" (1/1) ... [2024-10-31 22:00:26,715 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]. [2024-10-31 22:00:26,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:26" (1/1) ... [2024-10-31 22:00:26,720 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:26" (1/1) ... [2024-10-31 22:00:26,731 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:26" (1/1) ... [2024-10-31 22:00:26,733 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:26" (1/1) ... [2024-10-31 22:00:26,738 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:26" (1/1) ... [2024-10-31 22:00:26,740 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:26" (1/1) ... [2024-10-31 22:00:26,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:00:26,748 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:00:26,752 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:00:26,752 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:00:26,753 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:26" (1/1) ... [2024-10-31 22:00:26,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:00:26,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cffe908-a4a2-461d-aaba-beaf969fd373/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:26,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cffe908-a4a2-461d-aaba-beaf969fd373/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:26,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cffe908-a4a2-461d-aaba-beaf969fd373/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:00:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:00:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:00:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:00:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:00:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:00:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:00:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:00:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:00:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-31 22:00:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-31 22:00:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:00:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:00:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:00:26,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:00:26,846 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:00:27,070 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:00:27,073 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:00:27,509 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:00:27,509 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:00:27,849 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:00:27,853 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:00:27,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:27 BoogieIcfgContainer [2024-10-31 22:00:27,853 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:00:27,855 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:00:27,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:00:27,860 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:00:27,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:00:25" (1/3) ... [2024-10-31 22:00:27,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624998c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:27, skipping insertion in model container [2024-10-31 22:00:27,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:00:26" (2/3) ... [2024-10-31 22:00:27,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624998c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:00:27, skipping insertion in model container [2024-10-31 22:00:27,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:00:27" (3/3) ... [2024-10-31 22:00:27,865 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-10-31 22:00:27,884 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:00:27,884 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-31 22:00:27,885 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:00:27,959 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:00:28,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 48 transitions, 112 flow [2024-10-31 22:00:28,053 INFO L124 PetriNetUnfolderBase]: 1/44 cut-off events. [2024-10-31 22:00:28,054 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:00:28,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 1/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 87 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2024-10-31 22:00:28,058 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 48 transitions, 112 flow [2024-10-31 22:00:28,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 44 transitions, 100 flow [2024-10-31 22:00:28,078 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:00:28,089 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;@5f7b5eaf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:00:28,089 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-31 22:00:28,106 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:00:28,107 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-10-31 22:00:28,107 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:00:28,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:28,108 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:28,108 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:00:28,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:28,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1793883208, now seen corresponding path program 1 times [2024-10-31 22:00:28,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:28,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336185539] [2024-10-31 22:00:28,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:28,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:29,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:29,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:29,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336185539] [2024-10-31 22:00:29,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336185539] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:29,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:29,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:00:29,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452616470] [2024-10-31 22:00:29,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:29,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:00:29,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:29,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:00:29,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:00:29,082 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 48 [2024-10-31 22:00:29,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-10-31 22:00:29,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:29,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 48 [2024-10-31 22:00:29,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:29,723 INFO L124 PetriNetUnfolderBase]: 815/1447 cut-off events. [2024-10-31 22:00:29,724 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:00:29,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2679 conditions, 1447 events. 815/1447 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 9993 event pairs, 179 based on Foata normal form. 48/1452 useless extension candidates. Maximal degree in co-relation 2667. Up to 889 conditions per place. [2024-10-31 22:00:29,742 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 27 selfloop transitions, 2 changer transitions 2/52 dead transitions. [2024-10-31 22:00:29,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 52 transitions, 178 flow [2024-10-31 22:00:29,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:00:29,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:00:29,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-10-31 22:00:29,760 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7569444444444444 [2024-10-31 22:00:29,762 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 109 transitions. [2024-10-31 22:00:29,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 52 transitions, 178 flow [2024-10-31 22:00:29,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 174 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:00:29,772 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 94 flow [2024-10-31 22:00:29,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2024-10-31 22:00:29,783 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2024-10-31 22:00:29,783 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 94 flow [2024-10-31 22:00:29,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-10-31 22:00:29,784 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:29,785 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:29,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:00:29,785 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:00:29,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:29,786 INFO L85 PathProgramCache]: Analyzing trace with hash -2094359865, now seen corresponding path program 1 times [2024-10-31 22:00:29,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:29,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079356854] [2024-10-31 22:00:29,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:29,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:31,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:31,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:31,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079356854] [2024-10-31 22:00:31,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079356854] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:31,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:31,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:31,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472970282] [2024-10-31 22:00:31,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:31,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:31,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:31,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:31,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:31,279 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-10-31 22:00:31,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-10-31 22:00:31,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:31,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-10-31 22:00:31,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:35,618 INFO L124 PetriNetUnfolderBase]: 12743/19380 cut-off events. [2024-10-31 22:00:35,618 INFO L125 PetriNetUnfolderBase]: For 872/872 co-relation queries the response was YES. [2024-10-31 22:00:35,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37942 conditions, 19380 events. 12743/19380 cut-off events. For 872/872 co-relation queries the response was YES. Maximal size of possible extension queue 1079. Compared 145048 event pairs, 411 based on Foata normal form. 0/18919 useless extension candidates. Maximal degree in co-relation 37932. Up to 6976 conditions per place. [2024-10-31 22:00:35,768 INFO L140 encePairwiseOnDemand]: 34/48 looper letters, 53 selfloop transitions, 12 changer transitions 99/178 dead transitions. [2024-10-31 22:00:35,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 178 transitions, 726 flow [2024-10-31 22:00:35,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:00:35,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-31 22:00:35,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 383 transitions. [2024-10-31 22:00:35,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6649305555555556 [2024-10-31 22:00:35,774 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 94 flow. Second operand 12 states and 383 transitions. [2024-10-31 22:00:35,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 178 transitions, 726 flow [2024-10-31 22:00:35,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 178 transitions, 702 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:00:35,784 INFO L231 Difference]: Finished difference. Result has 72 places, 51 transitions, 228 flow [2024-10-31 22:00:35,784 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=228, PETRI_PLACES=72, PETRI_TRANSITIONS=51} [2024-10-31 22:00:35,785 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 16 predicate places. [2024-10-31 22:00:35,785 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 51 transitions, 228 flow [2024-10-31 22:00:35,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-10-31 22:00:35,786 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:35,787 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:35,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:00:35,788 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:00:35,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:35,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1563188216, now seen corresponding path program 1 times [2024-10-31 22:00:35,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:35,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782531237] [2024-10-31 22:00:35,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:35,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:36,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:36,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:36,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782531237] [2024-10-31 22:00:36,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782531237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:36,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:36,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:36,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583186222] [2024-10-31 22:00:36,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:36,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:36,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:36,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:36,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:36,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-10-31 22:00:36,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 51 transitions, 228 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-10-31 22:00:36,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:36,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-10-31 22:00:36,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:39,863 INFO L124 PetriNetUnfolderBase]: 9456/15774 cut-off events. [2024-10-31 22:00:39,863 INFO L125 PetriNetUnfolderBase]: For 29496/29502 co-relation queries the response was YES. [2024-10-31 22:00:39,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50095 conditions, 15774 events. 9456/15774 cut-off events. For 29496/29502 co-relation queries the response was YES. Maximal size of possible extension queue 902. Compared 128395 event pairs, 618 based on Foata normal form. 380/16085 useless extension candidates. Maximal degree in co-relation 50074. Up to 6405 conditions per place. [2024-10-31 22:00:40,001 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 57 selfloop transitions, 15 changer transitions 78/164 dead transitions. [2024-10-31 22:00:40,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 164 transitions, 1170 flow [2024-10-31 22:00:40,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:00:40,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:00:40,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 312 transitions. [2024-10-31 22:00:40,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-10-31 22:00:40,005 INFO L175 Difference]: Start difference. First operand has 72 places, 51 transitions, 228 flow. Second operand 10 states and 312 transitions. [2024-10-31 22:00:40,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 164 transitions, 1170 flow [2024-10-31 22:00:40,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 164 transitions, 1090 flow, removed 40 selfloop flow, removed 4 redundant places. [2024-10-31 22:00:40,214 INFO L231 Difference]: Finished difference. Result has 77 places, 62 transitions, 398 flow [2024-10-31 22:00:40,214 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=398, PETRI_PLACES=77, PETRI_TRANSITIONS=62} [2024-10-31 22:00:40,216 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 21 predicate places. [2024-10-31 22:00:40,216 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 62 transitions, 398 flow [2024-10-31 22:00:40,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-10-31 22:00:40,217 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:40,217 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:40,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:00:40,218 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:00:40,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:40,219 INFO L85 PathProgramCache]: Analyzing trace with hash 88273458, now seen corresponding path program 1 times [2024-10-31 22:00:40,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:40,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328842933] [2024-10-31 22:00:40,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:40,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:41,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:41,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:41,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328842933] [2024-10-31 22:00:41,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328842933] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:41,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:41,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:00:41,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963826490] [2024-10-31 22:00:41,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:41,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:41,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:41,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:41,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:41,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-10-31 22:00:41,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 62 transitions, 398 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-10-31 22:00:41,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:41,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-10-31 22:00:41,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:44,519 INFO L124 PetriNetUnfolderBase]: 11217/18234 cut-off events. [2024-10-31 22:00:44,520 INFO L125 PetriNetUnfolderBase]: For 56757/56757 co-relation queries the response was YES. [2024-10-31 22:00:44,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66284 conditions, 18234 events. 11217/18234 cut-off events. For 56757/56757 co-relation queries the response was YES. Maximal size of possible extension queue 1041. Compared 149156 event pairs, 2140 based on Foata normal form. 350/18310 useless extension candidates. Maximal degree in co-relation 66256. Up to 5814 conditions per place. [2024-10-31 22:00:44,679 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 61 selfloop transitions, 27 changer transitions 68/170 dead transitions. [2024-10-31 22:00:44,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 170 transitions, 1408 flow [2024-10-31 22:00:44,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:00:44,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-31 22:00:44,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2024-10-31 22:00:44,684 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6395833333333333 [2024-10-31 22:00:44,685 INFO L175 Difference]: Start difference. First operand has 77 places, 62 transitions, 398 flow. Second operand 10 states and 307 transitions. [2024-10-31 22:00:44,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 170 transitions, 1408 flow [2024-10-31 22:00:45,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 170 transitions, 1362 flow, removed 23 selfloop flow, removed 0 redundant places. [2024-10-31 22:00:45,245 INFO L231 Difference]: Finished difference. Result has 89 places, 73 transitions, 646 flow [2024-10-31 22:00:45,247 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=646, PETRI_PLACES=89, PETRI_TRANSITIONS=73} [2024-10-31 22:00:45,251 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 33 predicate places. [2024-10-31 22:00:45,251 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 73 transitions, 646 flow [2024-10-31 22:00:45,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-10-31 22:00:45,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:45,252 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:45,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:00:45,253 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:00:45,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:45,253 INFO L85 PathProgramCache]: Analyzing trace with hash 2101487005, now seen corresponding path program 1 times [2024-10-31 22:00:45,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:45,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587502453] [2024-10-31 22:00:45,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:45,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:46,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:46,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587502453] [2024-10-31 22:00:46,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587502453] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:46,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:46,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:46,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565069510] [2024-10-31 22:00:46,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:46,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:46,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:46,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:46,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:46,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-10-31 22:00:46,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 73 transitions, 646 flow. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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) [2024-10-31 22:00:46,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:46,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-10-31 22:00:46,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:00:49,686 INFO L124 PetriNetUnfolderBase]: 10743/18721 cut-off events. [2024-10-31 22:00:49,686 INFO L125 PetriNetUnfolderBase]: For 96053/97665 co-relation queries the response was YES. [2024-10-31 22:00:49,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74572 conditions, 18721 events. 10743/18721 cut-off events. For 96053/97665 co-relation queries the response was YES. Maximal size of possible extension queue 1221. Compared 168009 event pairs, 3158 based on Foata normal form. 622/18334 useless extension candidates. Maximal degree in co-relation 74533. Up to 10870 conditions per place. [2024-10-31 22:00:49,870 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 58 selfloop transitions, 14 changer transitions 20/130 dead transitions. [2024-10-31 22:00:49,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 130 transitions, 1312 flow [2024-10-31 22:00:49,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:00:49,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-31 22:00:49,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 214 transitions. [2024-10-31 22:00:49,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6369047619047619 [2024-10-31 22:00:49,877 INFO L175 Difference]: Start difference. First operand has 89 places, 73 transitions, 646 flow. Second operand 7 states and 214 transitions. [2024-10-31 22:00:49,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 130 transitions, 1312 flow [2024-10-31 22:00:50,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 130 transitions, 1268 flow, removed 22 selfloop flow, removed 8 redundant places. [2024-10-31 22:00:50,188 INFO L231 Difference]: Finished difference. Result has 85 places, 84 transitions, 784 flow [2024-10-31 22:00:50,189 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=784, PETRI_PLACES=85, PETRI_TRANSITIONS=84} [2024-10-31 22:00:50,190 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 29 predicate places. [2024-10-31 22:00:50,192 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 84 transitions, 784 flow [2024-10-31 22:00:50,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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) [2024-10-31 22:00:50,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:00:50,193 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:50,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:00:50,193 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-31 22:00:50,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:50,194 INFO L85 PathProgramCache]: Analyzing trace with hash 319451581, now seen corresponding path program 1 times [2024-10-31 22:00:50,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:50,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847807969] [2024-10-31 22:00:50,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:50,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:50,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:50,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:50,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847807969] [2024-10-31 22:00:50,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847807969] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:50,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:50,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:00:50,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454467615] [2024-10-31 22:00:50,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:50,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:00:50,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:50,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:00:50,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:00:50,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-10-31 22:00:50,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 84 transitions, 784 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2024-10-31 22:00:50,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:00:50,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-10-31 22:00:50,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand