./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33e22bb-4208-4f77-9612-1bf7b2645466/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33e22bb-4208-4f77-9612-1bf7b2645466/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33e22bb-4208-4f77-9612-1bf7b2645466/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33e22bb-4208-4f77-9612-1bf7b2645466/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33e22bb-4208-4f77-9612-1bf7b2645466/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33e22bb-4208-4f77-9612-1bf7b2645466/bin/uautomizer-verify-LYvppIcaGC --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 b51bd5b35703bd543bead4074e6d14da7b357845ee956f8678aa2abe4dcc1210 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:49:04,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:49:05,027 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33e22bb-4208-4f77-9612-1bf7b2645466/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-24 01:49:05,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:49:05,034 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:49:05,061 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:49:05,061 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:49:05,062 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:49:05,062 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:49:05,062 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:49:05,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:49:05,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:49:05,063 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:49:05,063 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:49:05,063 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:49:05,064 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:49:05,064 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:49:05,064 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:49:05,064 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:49:05,064 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:49:05,064 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-24 01:49:05,065 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-24 01:49:05,065 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-24 01:49:05,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:49:05,065 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 01:49:05,065 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 01:49:05,065 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:49:05,065 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:49:05,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:49:05,066 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:49:05,066 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:49:05,066 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:49:05,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:49:05,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:49:05,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:49:05,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:49:05,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:49:05,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:49:05,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:49:05,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:49:05,067 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:49:05,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:49:05,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:49:05,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:49:05,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:49:05,068 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:49:05,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:49:05,068 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_a33e22bb-4208-4f77-9612-1bf7b2645466/bin/uautomizer-verify-LYvppIcaGC 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 -> b51bd5b35703bd543bead4074e6d14da7b357845ee956f8678aa2abe4dcc1210 [2024-11-24 01:49:05,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:49:05,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:49:05,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:49:05,383 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:49:05,383 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:49:05,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33e22bb-4208-4f77-9612-1bf7b2645466/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2024-11-24 01:49:08,438 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33e22bb-4208-4f77-9612-1bf7b2645466/bin/uautomizer-verify-LYvppIcaGC/data/c6a34a2d1/82de7c73d7bd4e96aef7ad0ecfbc821b/FLAGc198ecaa7 [2024-11-24 01:49:08,802 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:49:08,803 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33e22bb-4208-4f77-9612-1bf7b2645466/sv-benchmarks/c/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2024-11-24 01:49:08,822 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33e22bb-4208-4f77-9612-1bf7b2645466/bin/uautomizer-verify-LYvppIcaGC/data/c6a34a2d1/82de7c73d7bd4e96aef7ad0ecfbc821b/FLAGc198ecaa7 [2024-11-24 01:49:08,843 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33e22bb-4208-4f77-9612-1bf7b2645466/bin/uautomizer-verify-LYvppIcaGC/data/c6a34a2d1/82de7c73d7bd4e96aef7ad0ecfbc821b [2024-11-24 01:49:08,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:49:08,848 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:49:08,849 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:49:08,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:49:08,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:49:08,855 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:49:08" (1/1) ... [2024-11-24 01:49:08,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21476f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:08, skipping insertion in model container [2024-11-24 01:49:08,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:49:08" (1/1) ... [2024-11-24 01:49:08,902 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:49:09,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:49:09,497 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:49:09,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:49:09,598 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:49:09,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:09 WrapperNode [2024-11-24 01:49:09,599 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:49:09,600 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:49:09,600 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:49:09,600 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:49:09,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:09" (1/1) ... [2024-11-24 01:49:09,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:09" (1/1) ... [2024-11-24 01:49:09,654 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 132 [2024-11-24 01:49:09,655 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:49:09,655 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:49:09,655 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:49:09,656 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:49:09,667 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:09" (1/1) ... [2024-11-24 01:49:09,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:09" (1/1) ... [2024-11-24 01:49:09,672 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:09" (1/1) ... [2024-11-24 01:49:09,696 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]. [2024-11-24 01:49:09,696 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:09" (1/1) ... [2024-11-24 01:49:09,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:09" (1/1) ... [2024-11-24 01:49:09,712 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:09" (1/1) ... [2024-11-24 01:49:09,714 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:09" (1/1) ... [2024-11-24 01:49:09,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:09" (1/1) ... [2024-11-24 01:49:09,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:09" (1/1) ... [2024-11-24 01:49:09,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:09" (1/1) ... [2024-11-24 01:49:09,737 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:49:09,738 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:49:09,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:49:09,738 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:49:09,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:09" (1/1) ... [2024-11-24 01:49:09,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:49:09,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33e22bb-4208-4f77-9612-1bf7b2645466/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:49:09,787 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33e22bb-4208-4f77-9612-1bf7b2645466/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:49:09,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a33e22bb-4208-4f77-9612-1bf7b2645466/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:49:09,821 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-24 01:49:09,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:49:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-24 01:49:09,824 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-24 01:49:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-24 01:49:09,824 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-24 01:49:09,824 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-24 01:49:09,825 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-24 01:49:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-24 01:49:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-24 01:49:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:49:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-24 01:49:09,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:49:09,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:49:09,827 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 01:49:09,990 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:49:09,993 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:49:10,544 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 01:49:10,544 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:49:10,842 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:49:10,842 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 01:49:10,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:49:10 BoogieIcfgContainer [2024-11-24 01:49:10,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:49:10,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:49:10,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:49:10,858 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:49:10,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:49:08" (1/3) ... [2024-11-24 01:49:10,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388947b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:49:10, skipping insertion in model container [2024-11-24 01:49:10,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:09" (2/3) ... [2024-11-24 01:49:10,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@388947b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:49:10, skipping insertion in model container [2024-11-24 01:49:10,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:49:10" (3/3) ... [2024-11-24 01:49:10,862 INFO L128 eAbstractionObserver]: Analyzing ICFG mix023_power.oepc_pso.oepc_rmo.oepc.i [2024-11-24 01:49:10,879 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:49:10,881 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix023_power.oepc_pso.oepc_rmo.oepc.i that has 5 procedures, 54 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-24 01:49:10,881 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 01:49:10,960 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 01:49:10,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-24 01:49:11,036 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-24 01:49:11,038 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:49:11,043 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. [2024-11-24 01:49:11,043 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-24 01:49:11,047 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-24 01:49:11,067 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:49:11,087 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;@759e635, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:49:11,089 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-24 01:49:11,095 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 01:49:11,096 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-24 01:49:11,097 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:49:11,097 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:11,098 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-24 01:49:11,134 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-24 01:49:11,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:11,140 INFO L85 PathProgramCache]: Analyzing trace with hash 12895422, now seen corresponding path program 1 times [2024-11-24 01:49:11,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:11,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164741438] [2024-11-24 01:49:11,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:11,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:11,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:49:11,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:11,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164741438] [2024-11-24 01:49:11,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164741438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:11,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:11,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-24 01:49:11,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009738310] [2024-11-24 01:49:11,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:11,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:49:11,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:11,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:49:11,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:49:11,836 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-11-24 01:49:11,842 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) [2024-11-24 01:49:11,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:11,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-11-24 01:49:11,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:13,591 INFO L124 PetriNetUnfolderBase]: 3311/5198 cut-off events. [2024-11-24 01:49:13,591 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-24 01:49:13,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9878 conditions, 5198 events. 3311/5198 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 33880 event pairs, 2177 based on Foata normal form. 288/5441 useless extension candidates. Maximal degree in co-relation 9866. Up to 3661 conditions per place. [2024-11-24 01:49:13,644 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 41 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2024-11-24 01:49:13,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 245 flow [2024-11-24 01:49:13,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:49:13,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:49:13,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-11-24 01:49:13,661 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2024-11-24 01:49:13,663 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 128 transitions. [2024-11-24 01:49:13,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 245 flow [2024-11-24 01:49:13,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-24 01:49:13,678 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-24 01:49:13,682 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} [2024-11-24 01:49:13,687 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-24 01:49:13,687 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-24 01:49:13,688 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) [2024-11-24 01:49:13,688 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:13,688 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:13,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:49:13,689 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-24 01:49:13,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:13,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1201967237, now seen corresponding path program 1 times [2024-11-24 01:49:13,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:13,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873339732] [2024-11-24 01:49:13,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:13,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:13,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:49:13,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:13,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873339732] [2024-11-24 01:49:13,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873339732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:13,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:13,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-24 01:49:13,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840312574] [2024-11-24 01:49:13,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:13,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:49:13,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:13,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:49:13,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:49:13,842 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-24 01:49:13,845 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) [2024-11-24 01:49:13,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:13,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-24 01:49:13,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:14,798 INFO L124 PetriNetUnfolderBase]: 2903/4915 cut-off events. [2024-11-24 01:49:14,798 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-11-24 01:49:14,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9319 conditions, 4915 events. 2903/4915 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 35320 event pairs, 2903 based on Foata normal form. 144/4897 useless extension candidates. Maximal degree in co-relation 9309. Up to 4016 conditions per place. [2024-11-24 01:49:14,847 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 22 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-24 01:49:14,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 150 flow [2024-11-24 01:49:14,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:49:14,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:49:14,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-11-24 01:49:14,850 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-11-24 01:49:14,850 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 100 transitions. [2024-11-24 01:49:14,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 150 flow [2024-11-24 01:49:14,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 01:49:14,854 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-24 01:49:14,854 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} [2024-11-24 01:49:14,856 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-24 01:49:14,856 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-24 01:49:14,856 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) [2024-11-24 01:49:14,856 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:14,856 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:14,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:49:14,857 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-24 01:49:14,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:14,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1201965953, now seen corresponding path program 1 times [2024-11-24 01:49:14,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:14,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266670443] [2024-11-24 01:49:14,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:14,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:15,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:49:15,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:15,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266670443] [2024-11-24 01:49:15,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266670443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:15,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:15,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:49:15,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832901403] [2024-11-24 01:49:15,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:15,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:49:15,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:15,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:49:15,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:49:15,514 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-11-24 01:49:15,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-24 01:49:15,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:15,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-11-24 01:49:15,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:23,144 INFO L124 PetriNetUnfolderBase]: 45528/65011 cut-off events. [2024-11-24 01:49:23,144 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:49:23,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126356 conditions, 65011 events. 45528/65011 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2740. Compared 474970 event pairs, 10948 based on Foata normal form. 0/63474 useless extension candidates. Maximal degree in co-relation 126350. Up to 22989 conditions per place. [2024-11-24 01:49:23,436 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 48 selfloop transitions, 9 changer transitions 109/178 dead transitions. [2024-11-24 01:49:23,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 178 transitions, 702 flow [2024-11-24 01:49:23,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:49:23,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-24 01:49:23,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 321 transitions. [2024-11-24 01:49:23,439 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6484848484848484 [2024-11-24 01:49:23,440 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 321 transitions. [2024-11-24 01:49:23,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 178 transitions, 702 flow [2024-11-24 01:49:23,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 178 transitions, 701 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 01:49:23,444 INFO L231 Difference]: Finished difference. Result has 70 places, 51 transitions, 221 flow [2024-11-24 01:49:23,445 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=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=221, PETRI_PLACES=70, PETRI_TRANSITIONS=51} [2024-11-24 01:49:23,446 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-24 01:49:23,446 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 51 transitions, 221 flow [2024-11-24 01:49:23,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-24 01:49:23,447 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:23,447 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:23,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:49:23,447 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-24 01:49:23,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:23,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1289354014, now seen corresponding path program 1 times [2024-11-24 01:49:23,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:23,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539232263] [2024-11-24 01:49:23,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:23,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:23,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:49:23,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:23,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539232263] [2024-11-24 01:49:23,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539232263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:23,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:23,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:49:23,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620266647] [2024-11-24 01:49:23,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:23,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:49:23,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:23,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:49:23,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:49:23,826 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-11-24 01:49:23,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 51 transitions, 221 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-11-24 01:49:23,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:23,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-11-24 01:49:23,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:30,051 INFO L124 PetriNetUnfolderBase]: 34386/50486 cut-off events. [2024-11-24 01:49:30,051 INFO L125 PetriNetUnfolderBase]: For 70552/70633 co-relation queries the response was YES. [2024-11-24 01:49:30,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152100 conditions, 50486 events. 34386/50486 cut-off events. For 70552/70633 co-relation queries the response was YES. Maximal size of possible extension queue 2171. Compared 370973 event pairs, 2140 based on Foata normal form. 1125/51569 useless extension candidates. Maximal degree in co-relation 152085. Up to 22002 conditions per place. [2024-11-24 01:49:30,358 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 63 selfloop transitions, 13 changer transitions 96/184 dead transitions. [2024-11-24 01:49:30,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 184 transitions, 1193 flow [2024-11-24 01:49:30,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:49:30,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-24 01:49:30,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 332 transitions. [2024-11-24 01:49:30,362 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6036363636363636 [2024-11-24 01:49:30,362 INFO L175 Difference]: Start difference. First operand has 70 places, 51 transitions, 221 flow. Second operand 10 states and 332 transitions. [2024-11-24 01:49:30,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 184 transitions, 1193 flow [2024-11-24 01:49:31,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 184 transitions, 1045 flow, removed 35 selfloop flow, removed 4 redundant places. [2024-11-24 01:49:31,122 INFO L231 Difference]: Finished difference. Result has 77 places, 59 transitions, 325 flow [2024-11-24 01:49:31,123 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=325, PETRI_PLACES=77, PETRI_TRANSITIONS=59} [2024-11-24 01:49:31,124 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-11-24 01:49:31,124 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 59 transitions, 325 flow [2024-11-24 01:49:31,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-11-24 01:49:31,124 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:31,124 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:31,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:49:31,125 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-24 01:49:31,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:31,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1014671830, now seen corresponding path program 1 times [2024-11-24 01:49:31,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:31,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995950896] [2024-11-24 01:49:31,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:31,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:31,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:49:31,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:31,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995950896] [2024-11-24 01:49:31,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995950896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:31,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:31,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:49:31,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650281805] [2024-11-24 01:49:31,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:31,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:49:31,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:31,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:49:31,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:49:31,475 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-11-24 01:49:31,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 59 transitions, 325 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-11-24 01:49:31,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:31,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-11-24 01:49:31,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:37,920 INFO L124 PetriNetUnfolderBase]: 31994/46946 cut-off events. [2024-11-24 01:49:37,921 INFO L125 PetriNetUnfolderBase]: For 133323/133411 co-relation queries the response was YES. [2024-11-24 01:49:38,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154525 conditions, 46946 events. 31994/46946 cut-off events. For 133323/133411 co-relation queries the response was YES. Maximal size of possible extension queue 1947. Compared 341420 event pairs, 5535 based on Foata normal form. 1260/48109 useless extension candidates. Maximal degree in co-relation 154503. Up to 15077 conditions per place. [2024-11-24 01:49:38,253 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 72 selfloop transitions, 9 changer transitions 106/199 dead transitions. [2024-11-24 01:49:38,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 199 transitions, 1447 flow [2024-11-24 01:49:38,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:49:38,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-24 01:49:38,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 331 transitions. [2024-11-24 01:49:38,256 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6018181818181818 [2024-11-24 01:49:38,256 INFO L175 Difference]: Start difference. First operand has 77 places, 59 transitions, 325 flow. Second operand 10 states and 331 transitions. [2024-11-24 01:49:38,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 199 transitions, 1447 flow [2024-11-24 01:49:40,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 199 transitions, 1413 flow, removed 17 selfloop flow, removed 0 redundant places. [2024-11-24 01:49:40,249 INFO L231 Difference]: Finished difference. Result has 89 places, 64 transitions, 435 flow [2024-11-24 01:49:40,250 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=435, PETRI_PLACES=89, PETRI_TRANSITIONS=64} [2024-11-24 01:49:40,250 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 27 predicate places. [2024-11-24 01:49:40,254 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 64 transitions, 435 flow [2024-11-24 01:49:40,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-11-24 01:49:40,254 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:40,254 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] [2024-11-24 01:49:40,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:49:40,255 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-24 01:49:40,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:40,259 INFO L85 PathProgramCache]: Analyzing trace with hash 269552801, now seen corresponding path program 1 times [2024-11-24 01:49:40,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:40,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66842846] [2024-11-24 01:49:40,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:40,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:40,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:49:40,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:40,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66842846] [2024-11-24 01:49:40,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66842846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:40,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:40,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:49:40,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430684403] [2024-11-24 01:49:40,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:40,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:49:40,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:40,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:49:40,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:49:40,562 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-11-24 01:49:40,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 64 transitions, 435 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2024-11-24 01:49:40,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:40,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-11-24 01:49:40,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:46,324 INFO L124 PetriNetUnfolderBase]: 27159/39768 cut-off events. [2024-11-24 01:49:46,324 INFO L125 PetriNetUnfolderBase]: For 163049/163189 co-relation queries the response was YES. [2024-11-24 01:49:46,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141497 conditions, 39768 events. 27159/39768 cut-off events. For 163049/163189 co-relation queries the response was YES. Maximal size of possible extension queue 1526. Compared 283505 event pairs, 4707 based on Foata normal form. 915/40632 useless extension candidates. Maximal degree in co-relation 141464. Up to 13373 conditions per place. [2024-11-24 01:49:46,620 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 83 selfloop transitions, 18 changer transitions 90/203 dead transitions. [2024-11-24 01:49:46,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 203 transitions, 1635 flow [2024-11-24 01:49:46,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:49:46,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-24 01:49:46,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2024-11-24 01:49:46,622 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5945454545454546 [2024-11-24 01:49:46,623 INFO L175 Difference]: Start difference. First operand has 89 places, 64 transitions, 435 flow. Second operand 10 states and 327 transitions. [2024-11-24 01:49:46,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 203 transitions, 1635 flow [2024-11-24 01:49:49,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 203 transitions, 1548 flow, removed 41 selfloop flow, removed 8 redundant places. [2024-11-24 01:49:49,270 INFO L231 Difference]: Finished difference. Result has 93 places, 74 transitions, 621 flow [2024-11-24 01:49:49,271 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=621, PETRI_PLACES=93, PETRI_TRANSITIONS=74} [2024-11-24 01:49:49,271 INFO L279 CegarLoopForPetriNet]: 62 programPoint places, 31 predicate places. [2024-11-24 01:49:49,271 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 74 transitions, 621 flow [2024-11-24 01:49:49,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2024-11-24 01:49:49,272 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:49:49,272 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] [2024-11-24 01:49:49,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:49:49,272 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-24 01:49:49,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:49,273 INFO L85 PathProgramCache]: Analyzing trace with hash -825459536, now seen corresponding path program 1 times [2024-11-24 01:49:49,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:49,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043559446] [2024-11-24 01:49:49,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:49,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:49,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:49:49,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:49,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043559446] [2024-11-24 01:49:49,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043559446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:49,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:49,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:49:49,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749492852] [2024-11-24 01:49:49,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:49,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:49:49,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:49,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:49:49,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:49:49,474 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-24 01:49:49,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 74 transitions, 621 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) [2024-11-24 01:49:49,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:49:49,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-24 01:49:49,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:49:56,824 INFO L124 PetriNetUnfolderBase]: 36234/54204 cut-off events. [2024-11-24 01:49:56,824 INFO L125 PetriNetUnfolderBase]: For 103291/115604 co-relation queries the response was YES. [2024-11-24 01:49:57,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142478 conditions, 54204 events. 36234/54204 cut-off events. For 103291/115604 co-relation queries the response was YES. Maximal size of possible extension queue 1969. Compared 408571 event pairs, 5676 based on Foata normal form. 2525/54829 useless extension candidates. Maximal degree in co-relation 142442. Up to 28961 conditions per place. [2024-11-24 01:49:57,289 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 60 selfloop transitions, 6 changer transitions 0/110 dead transitions. [2024-11-24 01:49:57,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 110 transitions, 903 flow [2024-11-24 01:49:57,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:49:57,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 01:49:57,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-11-24 01:49:57,290 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-11-24 01:49:57,290 INFO L175 Difference]: Start difference. First operand has 93 places, 74 transitions, 621 flow. Second operand 4 states and 146 transitions. [2024-11-24 01:49:57,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 110 transitions, 903 flow