./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix007.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f402d465-8487-49d4-8e08-d4f713077790/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f402d465-8487-49d4-8e08-d4f713077790/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_f402d465-8487-49d4-8e08-d4f713077790/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f402d465-8487-49d4-8e08-d4f713077790/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix007.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f402d465-8487-49d4-8e08-d4f713077790/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f402d465-8487-49d4-8e08-d4f713077790/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87b62b2cd45c104fec3a3f6f97bb4a2e98408c552f26c7f9920866b9b8c9b373 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:43:49,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:43:49,392 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f402d465-8487-49d4-8e08-d4f713077790/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 04:43:49,402 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:43:49,403 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:43:49,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:43:49,451 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:43:49,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:43:49,452 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:43:49,452 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:43:49,453 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:43:49,453 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:43:49,454 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:43:49,454 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:43:49,455 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:43:49,456 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:43:49,456 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:43:49,456 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:43:49,457 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:43:49,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:43:49,457 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:43:49,457 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:43:49,458 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:43:49,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:43:49,458 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:43:49,458 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:43:49,458 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:43:49,458 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:43:49,458 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:43:49,459 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:43:49,459 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:43:49,459 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:43:49,460 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:43:49,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:43:49,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:43:49,460 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:43:49,461 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:43:49,461 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:43:49,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:43:49,461 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:43:49,461 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:43:49,461 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:43:49,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:43:49,461 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:43:49,461 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:43:49,462 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:43:49,462 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:43:49,462 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_f402d465-8487-49d4-8e08-d4f713077790/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 87b62b2cd45c104fec3a3f6f97bb4a2e98408c552f26c7f9920866b9b8c9b373 [2024-11-28 04:43:49,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:43:49,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:43:49,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:43:49,893 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:43:49,893 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:43:49,895 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f402d465-8487-49d4-8e08-d4f713077790/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/mix007.oepc.i [2024-11-28 04:43:53,200 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f402d465-8487-49d4-8e08-d4f713077790/bin/uautomizer-verify-aQ6SnzHsRB/data/6a27200fa/2b6bd77e061e406c811cdcc0af1ec77b/FLAGa3d534544 [2024-11-28 04:43:53,675 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:43:53,676 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f402d465-8487-49d4-8e08-d4f713077790/sv-benchmarks/c/pthread-wmm/mix007.oepc.i [2024-11-28 04:43:53,705 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f402d465-8487-49d4-8e08-d4f713077790/bin/uautomizer-verify-aQ6SnzHsRB/data/6a27200fa/2b6bd77e061e406c811cdcc0af1ec77b/FLAGa3d534544 [2024-11-28 04:43:53,790 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f402d465-8487-49d4-8e08-d4f713077790/bin/uautomizer-verify-aQ6SnzHsRB/data/6a27200fa/2b6bd77e061e406c811cdcc0af1ec77b [2024-11-28 04:43:53,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:43:53,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:43:53,800 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:43:53,800 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:43:53,806 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:43:53,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:53" (1/1) ... [2024-11-28 04:43:53,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70247a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:53, skipping insertion in model container [2024-11-28 04:43:53,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:53" (1/1) ... [2024-11-28 04:43:53,883 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:43:54,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:43:54,535 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:43:54,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:43:54,669 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:43:54,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:54 WrapperNode [2024-11-28 04:43:54,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:43:54,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:43:54,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:43:54,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:43:54,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:54" (1/1) ... [2024-11-28 04:43:54,698 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:54" (1/1) ... [2024-11-28 04:43:54,728 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133 [2024-11-28 04:43:54,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:43:54,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:43:54,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:43:54,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:43:54,741 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:54" (1/1) ... [2024-11-28 04:43:54,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:54" (1/1) ... [2024-11-28 04:43:54,745 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:54" (1/1) ... [2024-11-28 04:43:54,781 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 04:43:54,781 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:54" (1/1) ... [2024-11-28 04:43:54,781 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:54" (1/1) ... [2024-11-28 04:43:54,798 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:54" (1/1) ... [2024-11-28 04:43:54,803 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:54" (1/1) ... [2024-11-28 04:43:54,806 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:54" (1/1) ... [2024-11-28 04:43:54,811 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:54" (1/1) ... [2024-11-28 04:43:54,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:54" (1/1) ... [2024-11-28 04:43:54,824 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:43:54,829 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:43:54,829 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:43:54,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:43:54,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:54" (1/1) ... [2024-11-28 04:43:54,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:43:54,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f402d465-8487-49d4-8e08-d4f713077790/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:43:54,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f402d465-8487-49d4-8e08-d4f713077790/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:43:54,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f402d465-8487-49d4-8e08-d4f713077790/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:43:54,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 04:43:54,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:43:54,916 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 04:43:54,920 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 04:43:54,920 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 04:43:54,920 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 04:43:54,920 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-28 04:43:54,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-28 04:43:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-28 04:43:54,921 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-28 04:43:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:43:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 04:43:54,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:43:54,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:43:54,923 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 04:43:55,129 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:43:55,131 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:43:55,778 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:43:55,778 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:43:56,143 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:43:56,144 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 04:43:56,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:56 BoogieIcfgContainer [2024-11-28 04:43:56,144 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:43:56,148 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:43:56,148 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:43:56,156 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:43:56,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:43:53" (1/3) ... [2024-11-28 04:43:56,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce64af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:43:56, skipping insertion in model container [2024-11-28 04:43:56,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:54" (2/3) ... [2024-11-28 04:43:56,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce64af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:43:56, skipping insertion in model container [2024-11-28 04:43:56,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:43:56" (3/3) ... [2024-11-28 04:43:56,161 INFO L128 eAbstractionObserver]: Analyzing ICFG mix007.oepc.i [2024-11-28 04:43:56,209 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:43:56,212 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix007.oepc.i that has 5 procedures, 54 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-28 04:43:56,213 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:43:56,321 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 04:43:56,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-28 04:43:56,419 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-28 04:43:56,422 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:43:56,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 105 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-28 04:43:56,427 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-28 04:43:56,431 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-28 04:43:56,444 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:43:56,471 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=None, 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;@69550482, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:43:56,471 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-28 04:43:56,481 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:43:56,481 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-28 04:43:56,481 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:43:56,481 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:43:56,482 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-28 04:43:56,483 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 04:43:56,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:43:56,494 INFO L85 PathProgramCache]: Analyzing trace with hash 13040597, now seen corresponding path program 1 times [2024-11-28 04:43:56,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:43:56,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500907623] [2024-11-28 04:43:56,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:43:56,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:43:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:43:57,107 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 04:43:57,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:43:57,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500907623] [2024-11-28 04:43:57,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500907623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:43:57,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:43:57,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 04:43:57,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811310684] [2024-11-28 04:43:57,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:43:57,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:43:57,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:43:57,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:43:57,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:43:57,155 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-11-28 04:43:57,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 04:43:57,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:43:57,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-11-28 04:43:57,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:43:59,050 INFO L124 PetriNetUnfolderBase]: 3311/5200 cut-off events. [2024-11-28 04:43:59,050 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-28 04:43:59,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9880 conditions, 5200 events. 3311/5200 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 33817 event pairs, 2177 based on Foata normal form. 288/5439 useless extension candidates. Maximal degree in co-relation 9868. Up to 3661 conditions per place. [2024-11-28 04:43:59,123 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 41 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2024-11-28 04:43:59,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 245 flow [2024-11-28 04:43:59,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:43:59,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:43:59,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-11-28 04:43:59,146 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2024-11-28 04:43:59,148 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 128 transitions. [2024-11-28 04:43:59,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 245 flow [2024-11-28 04:43:59,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 04:43:59,167 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-28 04:43:59,171 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-28 04:43:59,176 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-28 04:43:59,179 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-28 04:43:59,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 04:43:59,180 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:43:59,180 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:43:59,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:43:59,181 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 04:43:59,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:43:59,184 INFO L85 PathProgramCache]: Analyzing trace with hash -484167886, now seen corresponding path program 1 times [2024-11-28 04:43:59,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:43:59,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734327863] [2024-11-28 04:43:59,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:43:59,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:43:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:43:59,458 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 04:43:59,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:43:59,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734327863] [2024-11-28 04:43:59,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734327863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:43:59,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:43:59,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 04:43:59,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725573807] [2024-11-28 04:43:59,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:43:59,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:43:59,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:43:59,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:43:59,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:43:59,469 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-28 04:43:59,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 04:43:59,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:43:59,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-28 04:43:59,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:44:00,751 INFO L124 PetriNetUnfolderBase]: 2903/4923 cut-off events. [2024-11-28 04:44:00,751 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-11-28 04:44:00,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9327 conditions, 4923 events. 2903/4923 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 35547 event pairs, 2903 based on Foata normal form. 144/4892 useless extension candidates. Maximal degree in co-relation 9317. Up to 4016 conditions per place. [2024-11-28 04:44:00,797 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 22 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-28 04:44:00,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 150 flow [2024-11-28 04:44:00,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:44:00,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 04:44:00,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-11-28 04:44:00,799 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-11-28 04:44:00,800 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 100 transitions. [2024-11-28 04:44:00,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 150 flow [2024-11-28 04:44:00,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 04:44:00,804 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-28 04:44:00,804 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-28 04:44:00,805 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-28 04:44:00,805 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-28 04:44:00,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 04:44:00,806 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:44:00,806 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:00,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:44:00,806 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 04:44:00,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:00,807 INFO L85 PathProgramCache]: Analyzing trace with hash -484166630, now seen corresponding path program 1 times [2024-11-28 04:44:00,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:00,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707834812] [2024-11-28 04:44:00,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:00,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:01,427 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 04:44:01,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:01,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707834812] [2024-11-28 04:44:01,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707834812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:01,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:01,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:44:01,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654345012] [2024-11-28 04:44:01,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:01,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:44:01,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:01,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:44:01,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:44:01,452 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-11-28 04:44:01,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 04:44:01,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:44:01,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-11-28 04:44:01,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:44:08,790 INFO L124 PetriNetUnfolderBase]: 34962/50322 cut-off events. [2024-11-28 04:44:08,791 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:44:08,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97695 conditions, 50322 events. 34962/50322 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2217. Compared 365857 event pairs, 8498 based on Foata normal form. 0/48944 useless extension candidates. Maximal degree in co-relation 97689. Up to 20017 conditions per place. [2024-11-28 04:44:09,049 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 49 selfloop transitions, 8 changer transitions 102/172 dead transitions. [2024-11-28 04:44:09,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 172 transitions, 678 flow [2024-11-28 04:44:09,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:44:09,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 04:44:09,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 323 transitions. [2024-11-28 04:44:09,055 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6525252525252525 [2024-11-28 04:44:09,056 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 323 transitions. [2024-11-28 04:44:09,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 172 transitions, 678 flow [2024-11-28 04:44:09,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 172 transitions, 677 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 04:44:09,066 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 207 flow [2024-11-28 04:44:09,066 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=207, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-11-28 04:44:09,068 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-28 04:44:09,068 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 207 flow [2024-11-28 04:44:09,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 04:44:09,069 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:44:09,069 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:09,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:44:09,069 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 04:44:09,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:09,071 INFO L85 PathProgramCache]: Analyzing trace with hash 993992313, now seen corresponding path program 1 times [2024-11-28 04:44:09,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:09,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62490010] [2024-11-28 04:44:09,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:09,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:09,372 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 04:44:09,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:09,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62490010] [2024-11-28 04:44:09,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62490010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:09,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:09,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:44:09,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822344280] [2024-11-28 04:44:09,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:09,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:44:09,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:09,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:44:09,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:44:09,382 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-28 04:44:09,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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 04:44:09,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:44:09,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-28 04:44:09,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:44:13,930 INFO L124 PetriNetUnfolderBase]: 18841/29949 cut-off events. [2024-11-28 04:44:13,930 INFO L125 PetriNetUnfolderBase]: For 26859/29366 co-relation queries the response was YES. [2024-11-28 04:44:14,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79750 conditions, 29949 events. 18841/29949 cut-off events. For 26859/29366 co-relation queries the response was YES. Maximal size of possible extension queue 1522. Compared 246297 event pairs, 5201 based on Foata normal form. 868/29599 useless extension candidates. Maximal degree in co-relation 79735. Up to 16611 conditions per place. [2024-11-28 04:44:14,137 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 34 selfloop transitions, 3 changer transitions 43/103 dead transitions. [2024-11-28 04:44:14,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 103 transitions, 531 flow [2024-11-28 04:44:14,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:44:14,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 04:44:14,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 237 transitions. [2024-11-28 04:44:14,141 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6155844155844156 [2024-11-28 04:44:14,141 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 207 flow. Second operand 7 states and 237 transitions. [2024-11-28 04:44:14,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 103 transitions, 531 flow [2024-11-28 04:44:14,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 103 transitions, 477 flow, removed 15 selfloop flow, removed 4 redundant places. [2024-11-28 04:44:14,488 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 192 flow [2024-11-28 04:44:14,488 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=192, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-11-28 04:44:14,489 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-28 04:44:14,490 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 192 flow [2024-11-28 04:44:14,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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 04:44:14,490 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:44:14,491 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 04:44:14,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:44:14,491 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 04:44:14,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:14,492 INFO L85 PathProgramCache]: Analyzing trace with hash -370590560, now seen corresponding path program 1 times [2024-11-28 04:44:14,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:14,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841667748] [2024-11-28 04:44:14,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:14,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:14,774 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 04:44:14,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:14,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841667748] [2024-11-28 04:44:14,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841667748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:14,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:14,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:44:14,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905269143] [2024-11-28 04:44:14,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:14,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:44:14,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:14,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:44:14,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:44:14,790 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-11-28 04:44:14,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 192 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) [2024-11-28 04:44:14,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:44:14,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-11-28 04:44:14,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:44:19,877 INFO L124 PetriNetUnfolderBase]: 22485/33154 cut-off events. [2024-11-28 04:44:19,877 INFO L125 PetriNetUnfolderBase]: For 31285/31730 co-relation queries the response was YES. [2024-11-28 04:44:19,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89994 conditions, 33154 events. 22485/33154 cut-off events. For 31285/31730 co-relation queries the response was YES. Maximal size of possible extension queue 1310. Compared 233919 event pairs, 3909 based on Foata normal form. 840/33883 useless extension candidates. Maximal degree in co-relation 89976. Up to 12245 conditions per place. [2024-11-28 04:44:20,103 INFO L140 encePairwiseOnDemand]: 45/55 looper letters, 64 selfloop transitions, 8 changer transitions 86/171 dead transitions. [2024-11-28 04:44:20,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 171 transitions, 940 flow [2024-11-28 04:44:20,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:44:20,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 04:44:20,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2024-11-28 04:44:20,106 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5945454545454546 [2024-11-28 04:44:20,106 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 192 flow. Second operand 10 states and 327 transitions. [2024-11-28 04:44:20,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 171 transitions, 940 flow [2024-11-28 04:44:20,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 171 transitions, 898 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-11-28 04:44:20,757 INFO L231 Difference]: Finished difference. Result has 76 places, 54 transitions, 257 flow [2024-11-28 04:44:20,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=257, PETRI_PLACES=76, PETRI_TRANSITIONS=54} [2024-11-28 04:44:20,758 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 14 predicate places. [2024-11-28 04:44:20,758 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 54 transitions, 257 flow [2024-11-28 04:44:20,758 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) [2024-11-28 04:44:20,758 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:44:20,759 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] [2024-11-28 04:44:20,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:44:20,759 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 04:44:20,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:20,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1775311437, now seen corresponding path program 1 times [2024-11-28 04:44:20,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:20,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913853253] [2024-11-28 04:44:20,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:20,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:20,936 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 04:44:20,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:20,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913853253] [2024-11-28 04:44:20,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913853253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:20,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:20,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:44:20,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564015505] [2024-11-28 04:44:20,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:20,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:44:20,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:20,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:44:20,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:44:20,944 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-28 04:44:20,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 54 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 04:44:20,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:44:20,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-28 04:44:20,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:44:27,218 INFO L124 PetriNetUnfolderBase]: 32302/48151 cut-off events. [2024-11-28 04:44:27,219 INFO L125 PetriNetUnfolderBase]: For 37462/44336 co-relation queries the response was YES. [2024-11-28 04:44:27,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116642 conditions, 48151 events. 32302/48151 cut-off events. For 37462/44336 co-relation queries the response was YES. Maximal size of possible extension queue 2010. Compared 358220 event pairs, 4957 based on Foata normal form. 2023/48311 useless extension candidates. Maximal degree in co-relation 116621. Up to 25691 conditions per place. [2024-11-28 04:44:27,545 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 60 selfloop transitions, 6 changer transitions 0/90 dead transitions. [2024-11-28 04:44:27,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 90 transitions, 507 flow [2024-11-28 04:44:27,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:44:27,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:44:27,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-11-28 04:44:27,546 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-11-28 04:44:27,547 INFO L175 Difference]: Start difference. First operand has 76 places, 54 transitions, 257 flow. Second operand 4 states and 146 transitions. [2024-11-28 04:44:27,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 90 transitions, 507 flow [2024-11-28 04:44:28,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 90 transitions, 492 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-28 04:44:28,282 INFO L231 Difference]: Finished difference. Result has 72 places, 59 transitions, 288 flow [2024-11-28 04:44:28,282 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=72, PETRI_TRANSITIONS=59} [2024-11-28 04:44:28,283 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 10 predicate places. [2024-11-28 04:44:28,283 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 59 transitions, 288 flow [2024-11-28 04:44:28,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 04:44:28,283 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:44:28,283 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, 1] [2024-11-28 04:44:28,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:44:28,283 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 04:44:28,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:28,284 INFO L85 PathProgramCache]: Analyzing trace with hash -270713947, now seen corresponding path program 1 times [2024-11-28 04:44:28,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:28,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623668318] [2024-11-28 04:44:28,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:28,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:28,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:28,589 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 04:44:28,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:28,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623668318] [2024-11-28 04:44:28,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623668318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:28,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:28,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:44:28,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945928183] [2024-11-28 04:44:28,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:28,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:44:28,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:28,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:44:28,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:44:28,605 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-28 04:44:28,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 59 transitions, 288 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 04:44:28,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:44:28,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-28 04:44:28,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:44:33,893 INFO L124 PetriNetUnfolderBase]: 25918/38933 cut-off events. [2024-11-28 04:44:33,893 INFO L125 PetriNetUnfolderBase]: For 26072/31070 co-relation queries the response was YES. [2024-11-28 04:44:34,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102408 conditions, 38933 events. 25918/38933 cut-off events. For 26072/31070 co-relation queries the response was YES. Maximal size of possible extension queue 1635. Compared 283019 event pairs, 2929 based on Foata normal form. 1725/39131 useless extension candidates. Maximal degree in co-relation 102386. Up to 13353 conditions per place. [2024-11-28 04:44:34,128 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 78 selfloop transitions, 10 changer transitions 0/112 dead transitions. [2024-11-28 04:44:34,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 112 transitions, 659 flow [2024-11-28 04:44:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:44:34,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 04:44:34,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 187 transitions. [2024-11-28 04:44:34,129 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.68 [2024-11-28 04:44:34,129 INFO L175 Difference]: Start difference. First operand has 72 places, 59 transitions, 288 flow. Second operand 5 states and 187 transitions. [2024-11-28 04:44:34,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 112 transitions, 659 flow [2024-11-28 04:44:34,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 112 transitions, 632 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-28 04:44:34,140 INFO L231 Difference]: Finished difference. Result has 73 places, 64 transitions, 341 flow [2024-11-28 04:44:34,140 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=341, PETRI_PLACES=73, PETRI_TRANSITIONS=64} [2024-11-28 04:44:34,141 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 11 predicate places. [2024-11-28 04:44:34,141 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 64 transitions, 341 flow [2024-11-28 04:44:34,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 04:44:34,141 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:44:34,141 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, 1, 1, 1, 1] [2024-11-28 04:44:34,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:44:34,142 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 04:44:34,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:34,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1351543178, now seen corresponding path program 1 times [2024-11-28 04:44:34,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:34,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063816533] [2024-11-28 04:44:34,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:34,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:34,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:34,504 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 04:44:34,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:34,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063816533] [2024-11-28 04:44:34,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063816533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:34,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:34,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:44:34,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27573755] [2024-11-28 04:44:34,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:34,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:44:34,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:34,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:44:34,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:44:34,529 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-28 04:44:34,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 341 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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 04:44:34,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:44:34,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-28 04:44:34,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:44:38,919 INFO L124 PetriNetUnfolderBase]: 20554/30685 cut-off events. [2024-11-28 04:44:38,920 INFO L125 PetriNetUnfolderBase]: For 40365/43840 co-relation queries the response was YES. [2024-11-28 04:44:39,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90921 conditions, 30685 events. 20554/30685 cut-off events. For 40365/43840 co-relation queries the response was YES. Maximal size of possible extension queue 1454. Compared 215675 event pairs, 2235 based on Foata normal form. 1036/30353 useless extension candidates. Maximal degree in co-relation 90900. Up to 10494 conditions per place. [2024-11-28 04:44:39,083 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 92 selfloop transitions, 14 changer transitions 0/130 dead transitions. [2024-11-28 04:44:39,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 130 transitions, 790 flow [2024-11-28 04:44:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:44:39,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:44:39,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 226 transitions. [2024-11-28 04:44:39,084 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6848484848484848 [2024-11-28 04:44:39,085 INFO L175 Difference]: Start difference. First operand has 73 places, 64 transitions, 341 flow. Second operand 6 states and 226 transitions. [2024-11-28 04:44:39,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 130 transitions, 790 flow [2024-11-28 04:44:39,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 130 transitions, 774 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-28 04:44:39,106 INFO L231 Difference]: Finished difference. Result has 78 places, 69 transitions, 411 flow [2024-11-28 04:44:39,107 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=411, PETRI_PLACES=78, PETRI_TRANSITIONS=69} [2024-11-28 04:44:39,107 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 16 predicate places. [2024-11-28 04:44:39,107 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 69 transitions, 411 flow [2024-11-28 04:44:39,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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 04:44:39,108 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:44:39,108 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:44:39,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:44:39,108 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-28 04:44:39,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:44:39,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1811930255, now seen corresponding path program 1 times [2024-11-28 04:44:39,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:44:39,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083759407] [2024-11-28 04:44:39,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:44:39,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:44:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:44:41,621 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 04:44:41,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:44:41,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083759407] [2024-11-28 04:44:41,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083759407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:44:41,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:44:41,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:44:41,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992265820] [2024-11-28 04:44:41,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:44:41,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:44:41,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:44:41,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:44:41,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:44:41,628 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-28 04:44:41,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 411 flow. Second operand has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 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 04:44:41,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:44:41,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-28 04:44:41,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand