./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd --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 8e0bd33ffca0122f84e298c52bb9fdae01e72661c94f68aaa49ed0f187d88b87 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:52:57,928 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:52:58,029 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 12:52:58,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:52:58,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:52:58,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:52:58,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:52:58,076 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:52:58,076 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:52:58,077 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:52:58,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:52:58,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:52:58,078 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:52:58,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:52:58,079 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:52:58,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:52:58,079 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:52:58,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:52:58,079 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:52:58,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:52:58,079 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 12:52:58,079 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 12:52:58,079 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 12:52:58,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:52:58,080 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 12:52:58,080 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:52:58,080 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 12:52:58,080 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:52:58,080 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:52:58,080 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:52:58,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:52:58,080 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:52:58,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:52:58,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:52:58,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:52:58,081 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:52:58,081 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:52:58,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:52:58,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:52:58,081 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:52:58,081 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:52:58,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:52:58,081 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_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd 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 -> 8e0bd33ffca0122f84e298c52bb9fdae01e72661c94f68aaa49ed0f187d88b87 [2024-11-13 12:52:58,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:52:58,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:52:58,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:52:58,415 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:52:58,415 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:52:58,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-wmm/safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i Unable to find full path for "g++" [2024-11-13 12:53:00,458 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:53:00,783 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:53:00,784 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/sv-benchmarks/c/pthread-wmm/safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-11-13 12:53:00,798 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/data/075d3d31b/a887e61c50ab4df4987e3eac06ff5b51/FLAG420997c65 [2024-11-13 12:53:00,812 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/data/075d3d31b/a887e61c50ab4df4987e3eac06ff5b51 [2024-11-13 12:53:00,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:53:00,816 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:53:00,817 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:53:00,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:53:00,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:53:00,823 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:53:00" (1/1) ... [2024-11-13 12:53:00,824 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ba600f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:00, skipping insertion in model container [2024-11-13 12:53:00,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:53:00" (1/1) ... [2024-11-13 12:53:00,860 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:53:01,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:53:01,370 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:53:01,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:53:01,510 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:53:01,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:01 WrapperNode [2024-11-13 12:53:01,512 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:53:01,513 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:53:01,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:53:01,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:53:01,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:01" (1/1) ... [2024-11-13 12:53:01,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:01" (1/1) ... [2024-11-13 12:53:01,586 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 137 [2024-11-13 12:53:01,590 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:53:01,590 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:53:01,591 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:53:01,591 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:53:01,603 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:01" (1/1) ... [2024-11-13 12:53:01,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:01" (1/1) ... [2024-11-13 12:53:01,608 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:01" (1/1) ... [2024-11-13 12:53:01,640 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]. [2024-11-13 12:53:01,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:01" (1/1) ... [2024-11-13 12:53:01,640 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:01" (1/1) ... [2024-11-13 12:53:01,662 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:01" (1/1) ... [2024-11-13 12:53:01,668 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:01" (1/1) ... [2024-11-13 12:53:01,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:01" (1/1) ... [2024-11-13 12:53:01,676 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:01" (1/1) ... [2024-11-13 12:53:01,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:53:01,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:53:01,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:53:01,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:53:01,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:01" (1/1) ... [2024-11-13 12:53:01,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:53:01,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:53:01,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:53:01,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:53:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 12:53:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:53:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-13 12:53:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-13 12:53:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-13 12:53:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-13 12:53:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-13 12:53:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-13 12:53:01,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:53:01,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 12:53:01,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:53:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:53:01,751 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 12:53:01,923 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:53:01,925 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:53:02,433 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 12:53:02,434 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:53:02,794 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:53:02,794 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 12:53:02,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:53:02 BoogieIcfgContainer [2024-11-13 12:53:02,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:53:02,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:53:02,798 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:53:02,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:53:02,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:53:00" (1/3) ... [2024-11-13 12:53:02,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758381df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:53:02, skipping insertion in model container [2024-11-13 12:53:02,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:01" (2/3) ... [2024-11-13 12:53:02,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758381df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:53:02, skipping insertion in model container [2024-11-13 12:53:02,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:53:02" (3/3) ... [2024-11-13 12:53:02,808 INFO L112 eAbstractionObserver]: Analyzing ICFG safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-11-13 12:53:02,829 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:53:02,831 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i that has 4 procedures, 45 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-13 12:53:02,832 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 12:53:02,969 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 12:53:03,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 46 transitions, 104 flow [2024-11-13 12:53:03,067 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2024-11-13 12:53:03,069 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:53:03,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 43 events. 2/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 81 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-13 12:53:03,075 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 46 transitions, 104 flow [2024-11-13 12:53:03,078 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 43 transitions, 95 flow [2024-11-13 12:53:03,086 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:53:03,101 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;@734f4f7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:53:03,101 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-13 12:53:03,118 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 12:53:03,118 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-13 12:53:03,118 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:53:03,118 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:03,119 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:03,121 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:03,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:03,125 INFO L85 PathProgramCache]: Analyzing trace with hash -472731195, now seen corresponding path program 1 times [2024-11-13 12:53:03,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:03,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200886218] [2024-11-13 12:53:03,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:03,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:03,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:03,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:03,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200886218] [2024-11-13 12:53:03,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200886218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:03,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:03,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 12:53:03,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668367711] [2024-11-13 12:53:03,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:03,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:53:03,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:03,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:53:03,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:53:03,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 46 [2024-11-13 12:53:03,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-13 12:53:03,770 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:03,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 46 [2024-11-13 12:53:03,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:04,662 INFO L124 PetriNetUnfolderBase]: 1186/2131 cut-off events. [2024-11-13 12:53:04,663 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-13 12:53:04,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3937 conditions, 2131 events. 1186/2131 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 14322 event pairs, 232 based on Foata normal form. 120/2232 useless extension candidates. Maximal degree in co-relation 3926. Up to 1360 conditions per place. [2024-11-13 12:53:04,708 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 33 selfloop transitions, 2 changer transitions 2/53 dead transitions. [2024-11-13 12:53:04,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 53 transitions, 189 flow [2024-11-13 12:53:04,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:53:04,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:53:04,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2024-11-13 12:53:04,727 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.717391304347826 [2024-11-13 12:53:04,729 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 95 flow. Second operand 3 states and 99 transitions. [2024-11-13 12:53:04,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 53 transitions, 189 flow [2024-11-13 12:53:04,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 53 transitions, 186 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 12:53:04,744 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 86 flow [2024-11-13 12:53:04,749 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2024-11-13 12:53:04,754 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2024-11-13 12:53:04,754 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 86 flow [2024-11-13 12:53:04,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-13 12:53:04,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:04,755 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:04,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:53:04,756 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:04,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:04,758 INFO L85 PathProgramCache]: Analyzing trace with hash 803760326, now seen corresponding path program 1 times [2024-11-13 12:53:04,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:04,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748914227] [2024-11-13 12:53:04,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:04,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:04,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:04,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:04,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748914227] [2024-11-13 12:53:04,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748914227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:04,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:04,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 12:53:04,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687687053] [2024-11-13 12:53:04,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:04,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:53:04,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:04,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:53:04,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:53:04,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 46 [2024-11-13 12:53:04,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-13 12:53:04,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:04,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 46 [2024-11-13 12:53:04,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:05,546 INFO L124 PetriNetUnfolderBase]: 1053/1845 cut-off events. [2024-11-13 12:53:05,547 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-11-13 12:53:05,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3577 conditions, 1845 events. 1053/1845 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 12521 event pairs, 1053 based on Foata normal form. 60/1859 useless extension candidates. Maximal degree in co-relation 3567. Up to 1570 conditions per place. [2024-11-13 12:53:05,561 INFO L140 encePairwiseOnDemand]: 44/46 looper letters, 20 selfloop transitions, 1 changer transitions 1/37 dead transitions. [2024-11-13 12:53:05,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 37 transitions, 128 flow [2024-11-13 12:53:05,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:53:05,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:53:05,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-11-13 12:53:05,563 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5579710144927537 [2024-11-13 12:53:05,563 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 86 flow. Second operand 3 states and 77 transitions. [2024-11-13 12:53:05,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 37 transitions, 128 flow [2024-11-13 12:53:05,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 124 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:53:05,567 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 80 flow [2024-11-13 12:53:05,568 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-11-13 12:53:05,568 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -5 predicate places. [2024-11-13 12:53:05,568 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 80 flow [2024-11-13 12:53:05,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-13 12:53:05,569 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:05,569 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:05,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:53:05,569 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:05,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:05,572 INFO L85 PathProgramCache]: Analyzing trace with hash 803760305, now seen corresponding path program 1 times [2024-11-13 12:53:05,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:05,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854380891] [2024-11-13 12:53:05,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:05,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:06,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:06,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:06,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854380891] [2024-11-13 12:53:06,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854380891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:06,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:06,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:53:06,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237624204] [2024-11-13 12:53:06,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:06,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:53:06,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:06,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:53:06,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:53:06,487 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-13 12:53:06,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 80 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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) [2024-11-13 12:53:06,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:06,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-13 12:53:06,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:08,178 INFO L124 PetriNetUnfolderBase]: 2381/3818 cut-off events. [2024-11-13 12:53:08,178 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:53:08,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7374 conditions, 3818 events. 2381/3818 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 24347 event pairs, 435 based on Foata normal form. 0/3727 useless extension candidates. Maximal degree in co-relation 7368. Up to 1520 conditions per place. [2024-11-13 12:53:08,203 INFO L140 encePairwiseOnDemand]: 34/46 looper letters, 38 selfloop transitions, 8 changer transitions 73/131 dead transitions. [2024-11-13 12:53:08,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 131 transitions, 510 flow [2024-11-13 12:53:08,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 12:53:08,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-13 12:53:08,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 314 transitions. [2024-11-13 12:53:08,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5688405797101449 [2024-11-13 12:53:08,207 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 80 flow. Second operand 12 states and 314 transitions. [2024-11-13 12:53:08,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 131 transitions, 510 flow [2024-11-13 12:53:08,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 131 transitions, 509 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 12:53:08,214 INFO L231 Difference]: Finished difference. Result has 66 places, 41 transitions, 179 flow [2024-11-13 12:53:08,214 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=179, PETRI_PLACES=66, PETRI_TRANSITIONS=41} [2024-11-13 12:53:08,215 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 15 predicate places. [2024-11-13 12:53:08,215 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 41 transitions, 179 flow [2024-11-13 12:53:08,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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) [2024-11-13 12:53:08,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:08,216 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:08,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:53:08,216 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:08,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:08,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1976567037, now seen corresponding path program 1 times [2024-11-13 12:53:08,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:08,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560702077] [2024-11-13 12:53:08,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:08,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:08,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:08,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:08,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560702077] [2024-11-13 12:53:08,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560702077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:08,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:08,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:53:08,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713160980] [2024-11-13 12:53:08,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:08,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:53:08,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:08,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:53:08,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:53:08,946 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-13 12:53:08,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 41 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 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) [2024-11-13 12:53:08,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:08,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-13 12:53:08,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:10,223 INFO L124 PetriNetUnfolderBase]: 1742/2955 cut-off events. [2024-11-13 12:53:10,223 INFO L125 PetriNetUnfolderBase]: For 7007/7007 co-relation queries the response was YES. [2024-11-13 12:53:10,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10206 conditions, 2955 events. 1742/2955 cut-off events. For 7007/7007 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 18488 event pairs, 582 based on Foata normal form. 71/3008 useless extension candidates. Maximal degree in co-relation 10188. Up to 1882 conditions per place. [2024-11-13 12:53:10,252 INFO L140 encePairwiseOnDemand]: 34/46 looper letters, 39 selfloop transitions, 17 changer transitions 44/112 dead transitions. [2024-11-13 12:53:10,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 112 transitions, 767 flow [2024-11-13 12:53:10,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 12:53:10,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 12:53:10,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 257 transitions. [2024-11-13 12:53:10,257 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.558695652173913 [2024-11-13 12:53:10,257 INFO L175 Difference]: Start difference. First operand has 66 places, 41 transitions, 179 flow. Second operand 10 states and 257 transitions. [2024-11-13 12:53:10,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 112 transitions, 767 flow [2024-11-13 12:53:10,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 112 transitions, 689 flow, removed 37 selfloop flow, removed 5 redundant places. [2024-11-13 12:53:10,287 INFO L231 Difference]: Finished difference. Result has 69 places, 50 transitions, 295 flow [2024-11-13 12:53:10,287 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=295, PETRI_PLACES=69, PETRI_TRANSITIONS=50} [2024-11-13 12:53:10,287 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 18 predicate places. [2024-11-13 12:53:10,288 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 50 transitions, 295 flow [2024-11-13 12:53:10,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 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) [2024-11-13 12:53:10,289 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:10,289 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:10,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:53:10,290 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:10,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:10,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2034638724, now seen corresponding path program 1 times [2024-11-13 12:53:10,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:10,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338131459] [2024-11-13 12:53:10,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:10,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:11,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:11,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:11,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338131459] [2024-11-13 12:53:11,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338131459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:11,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:11,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:53:11,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940449770] [2024-11-13 12:53:11,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:11,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:53:11,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:11,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:53:11,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:53:11,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:11,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 50 transitions, 295 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) [2024-11-13 12:53:11,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:11,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:11,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:12,191 INFO L124 PetriNetUnfolderBase]: 1634/2821 cut-off events. [2024-11-13 12:53:12,191 INFO L125 PetriNetUnfolderBase]: For 7025/7271 co-relation queries the response was YES. [2024-11-13 12:53:12,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10449 conditions, 2821 events. 1634/2821 cut-off events. For 7025/7271 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 17958 event pairs, 205 based on Foata normal form. 94/2858 useless extension candidates. Maximal degree in co-relation 10426. Up to 1666 conditions per place. [2024-11-13 12:53:12,221 INFO L140 encePairwiseOnDemand]: 36/46 looper letters, 48 selfloop transitions, 8 changer transitions 31/106 dead transitions. [2024-11-13 12:53:12,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 106 transitions, 786 flow [2024-11-13 12:53:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 12:53:12,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 12:53:12,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 210 transitions. [2024-11-13 12:53:12,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5706521739130435 [2024-11-13 12:53:12,225 INFO L175 Difference]: Start difference. First operand has 69 places, 50 transitions, 295 flow. Second operand 8 states and 210 transitions. [2024-11-13 12:53:12,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 106 transitions, 786 flow [2024-11-13 12:53:12,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 106 transitions, 742 flow, removed 22 selfloop flow, removed 8 redundant places. [2024-11-13 12:53:12,254 INFO L231 Difference]: Finished difference. Result has 68 places, 56 transitions, 359 flow [2024-11-13 12:53:12,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=359, PETRI_PLACES=68, PETRI_TRANSITIONS=56} [2024-11-13 12:53:12,256 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 17 predicate places. [2024-11-13 12:53:12,257 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 56 transitions, 359 flow [2024-11-13 12:53:12,257 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) [2024-11-13 12:53:12,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:12,258 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:12,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 12:53:12,258 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:12,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:12,259 INFO L85 PathProgramCache]: Analyzing trace with hash -834806610, now seen corresponding path program 2 times [2024-11-13 12:53:12,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:12,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854679213] [2024-11-13 12:53:12,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:12,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:13,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:13,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:13,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854679213] [2024-11-13 12:53:13,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854679213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:13,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:13,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 12:53:13,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308766345] [2024-11-13 12:53:13,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:13,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 12:53:13,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:13,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 12:53:13,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 12:53:13,509 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:13,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 56 transitions, 359 flow. Second operand has 9 states, 9 states have (on average 18.666666666666668) internal successors, (168), 9 states have internal predecessors, (168), 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) [2024-11-13 12:53:13,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:13,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:13,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:14,695 INFO L124 PetriNetUnfolderBase]: 1759/3070 cut-off events. [2024-11-13 12:53:14,696 INFO L125 PetriNetUnfolderBase]: For 8377/8650 co-relation queries the response was YES. [2024-11-13 12:53:14,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11972 conditions, 3070 events. 1759/3070 cut-off events. For 8377/8650 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 19754 event pairs, 200 based on Foata normal form. 95/3125 useless extension candidates. Maximal degree in co-relation 11949. Up to 1713 conditions per place. [2024-11-13 12:53:14,738 INFO L140 encePairwiseOnDemand]: 37/46 looper letters, 55 selfloop transitions, 17 changer transitions 33/124 dead transitions. [2024-11-13 12:53:14,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 124 transitions, 993 flow [2024-11-13 12:53:14,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 12:53:14,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 12:53:14,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 239 transitions. [2024-11-13 12:53:14,740 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5772946859903382 [2024-11-13 12:53:14,740 INFO L175 Difference]: Start difference. First operand has 68 places, 56 transitions, 359 flow. Second operand 9 states and 239 transitions. [2024-11-13 12:53:14,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 124 transitions, 993 flow [2024-11-13 12:53:14,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 124 transitions, 961 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-13 12:53:14,755 INFO L231 Difference]: Finished difference. Result has 74 places, 67 transitions, 519 flow [2024-11-13 12:53:14,755 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=519, PETRI_PLACES=74, PETRI_TRANSITIONS=67} [2024-11-13 12:53:14,756 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 23 predicate places. [2024-11-13 12:53:14,756 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 67 transitions, 519 flow [2024-11-13 12:53:14,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.666666666666668) internal successors, (168), 9 states have internal predecessors, (168), 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) [2024-11-13 12:53:14,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:14,756 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:14,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 12:53:14,756 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:14,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:14,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1811793609, now seen corresponding path program 1 times [2024-11-13 12:53:14,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:14,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092236883] [2024-11-13 12:53:14,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:14,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:15,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:15,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:15,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092236883] [2024-11-13 12:53:15,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092236883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:15,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:15,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:53:15,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686748589] [2024-11-13 12:53:15,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:15,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:53:15,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:15,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:53:15,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:53:15,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-13 12:53:15,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 67 transitions, 519 flow. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2024-11-13 12:53:15,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:15,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-13 12:53:15,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:16,180 INFO L124 PetriNetUnfolderBase]: 2430/4251 cut-off events. [2024-11-13 12:53:16,180 INFO L125 PetriNetUnfolderBase]: For 16188/16216 co-relation queries the response was YES. [2024-11-13 12:53:16,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17706 conditions, 4251 events. 2430/4251 cut-off events. For 16188/16216 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 29539 event pairs, 794 based on Foata normal form. 83/4275 useless extension candidates. Maximal degree in co-relation 17679. Up to 1915 conditions per place. [2024-11-13 12:53:16,219 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 59 selfloop transitions, 7 changer transitions 29/109 dead transitions. [2024-11-13 12:53:16,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 109 transitions, 1016 flow [2024-11-13 12:53:16,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 12:53:16,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 12:53:16,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 180 transitions. [2024-11-13 12:53:16,220 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5590062111801242 [2024-11-13 12:53:16,221 INFO L175 Difference]: Start difference. First operand has 74 places, 67 transitions, 519 flow. Second operand 7 states and 180 transitions. [2024-11-13 12:53:16,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 109 transitions, 1016 flow [2024-11-13 12:53:16,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 109 transitions, 982 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-11-13 12:53:16,255 INFO L231 Difference]: Finished difference. Result has 76 places, 67 transitions, 532 flow [2024-11-13 12:53:16,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=532, PETRI_PLACES=76, PETRI_TRANSITIONS=67} [2024-11-13 12:53:16,256 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 25 predicate places. [2024-11-13 12:53:16,256 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 67 transitions, 532 flow [2024-11-13 12:53:16,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2024-11-13 12:53:16,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:16,257 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:16,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:53:16,257 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:16,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:16,257 INFO L85 PathProgramCache]: Analyzing trace with hash -792655860, now seen corresponding path program 1 times [2024-11-13 12:53:16,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:16,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270931315] [2024-11-13 12:53:16,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:16,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:17,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:17,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:17,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270931315] [2024-11-13 12:53:17,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270931315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:17,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:17,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:53:17,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709871758] [2024-11-13 12:53:17,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:17,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 12:53:17,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:17,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 12:53:17,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:53:17,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:17,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 67 transitions, 532 flow. Second operand has 8 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 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) [2024-11-13 12:53:17,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:17,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:17,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:19,058 INFO L124 PetriNetUnfolderBase]: 2717/4758 cut-off events. [2024-11-13 12:53:19,059 INFO L125 PetriNetUnfolderBase]: For 21522/21942 co-relation queries the response was YES. [2024-11-13 12:53:19,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20348 conditions, 4758 events. 2717/4758 cut-off events. For 21522/21942 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 33576 event pairs, 336 based on Foata normal form. 176/4826 useless extension candidates. Maximal degree in co-relation 20320. Up to 2475 conditions per place. [2024-11-13 12:53:19,099 INFO L140 encePairwiseOnDemand]: 35/46 looper letters, 69 selfloop transitions, 25 changer transitions 41/154 dead transitions. [2024-11-13 12:53:19,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 154 transitions, 1471 flow [2024-11-13 12:53:19,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 12:53:19,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-13 12:53:19,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 273 transitions. [2024-11-13 12:53:19,101 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5395256916996047 [2024-11-13 12:53:19,102 INFO L175 Difference]: Start difference. First operand has 76 places, 67 transitions, 532 flow. Second operand 11 states and 273 transitions. [2024-11-13 12:53:19,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 154 transitions, 1471 flow [2024-11-13 12:53:19,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 154 transitions, 1448 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-13 12:53:19,136 INFO L231 Difference]: Finished difference. Result has 83 places, 80 transitions, 759 flow [2024-11-13 12:53:19,137 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=517, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=759, PETRI_PLACES=83, PETRI_TRANSITIONS=80} [2024-11-13 12:53:19,138 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 32 predicate places. [2024-11-13 12:53:19,138 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 80 transitions, 759 flow [2024-11-13 12:53:19,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 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) [2024-11-13 12:53:19,138 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:19,138 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:19,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 12:53:19,139 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:19,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:19,139 INFO L85 PathProgramCache]: Analyzing trace with hash -514727042, now seen corresponding path program 2 times [2024-11-13 12:53:19,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:19,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355354412] [2024-11-13 12:53:19,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:19,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:20,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:20,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:20,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355354412] [2024-11-13 12:53:20,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355354412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:20,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:20,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 12:53:20,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524453280] [2024-11-13 12:53:20,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:20,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 12:53:20,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:20,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 12:53:20,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 12:53:20,818 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:20,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 80 transitions, 759 flow. Second operand has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 9 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:20,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:20,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:20,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:22,100 INFO L124 PetriNetUnfolderBase]: 2700/4741 cut-off events. [2024-11-13 12:53:22,101 INFO L125 PetriNetUnfolderBase]: For 35012/35385 co-relation queries the response was YES. [2024-11-13 12:53:22,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24405 conditions, 4741 events. 2700/4741 cut-off events. For 35012/35385 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 33375 event pairs, 408 based on Foata normal form. 162/4812 useless extension candidates. Maximal degree in co-relation 24374. Up to 2996 conditions per place. [2024-11-13 12:53:22,140 INFO L140 encePairwiseOnDemand]: 35/46 looper letters, 71 selfloop transitions, 29 changer transitions 36/155 dead transitions. [2024-11-13 12:53:22,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 155 transitions, 1848 flow [2024-11-13 12:53:22,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 12:53:22,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 12:53:22,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 252 transitions. [2024-11-13 12:53:22,142 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5478260869565217 [2024-11-13 12:53:22,142 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 759 flow. Second operand 10 states and 252 transitions. [2024-11-13 12:53:22,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 155 transitions, 1848 flow [2024-11-13 12:53:22,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 155 transitions, 1837 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-13 12:53:22,182 INFO L231 Difference]: Finished difference. Result has 91 places, 92 transitions, 1074 flow [2024-11-13 12:53:22,182 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1074, PETRI_PLACES=91, PETRI_TRANSITIONS=92} [2024-11-13 12:53:22,183 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 40 predicate places. [2024-11-13 12:53:22,183 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 92 transitions, 1074 flow [2024-11-13 12:53:22,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 9 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:22,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:22,184 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:22,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 12:53:22,184 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:22,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:22,184 INFO L85 PathProgramCache]: Analyzing trace with hash -2018317914, now seen corresponding path program 3 times [2024-11-13 12:53:22,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:22,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693181343] [2024-11-13 12:53:22,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:22,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:23,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:23,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:23,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693181343] [2024-11-13 12:53:23,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693181343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:23,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:23,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 12:53:23,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374340401] [2024-11-13 12:53:23,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:23,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 12:53:23,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:23,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 12:53:23,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-13 12:53:23,229 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:23,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 92 transitions, 1074 flow. Second operand has 10 states, 10 states have (on average 18.6) internal successors, (186), 10 states have internal predecessors, (186), 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) [2024-11-13 12:53:23,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:23,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:23,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:24,508 INFO L124 PetriNetUnfolderBase]: 2796/4926 cut-off events. [2024-11-13 12:53:24,509 INFO L125 PetriNetUnfolderBase]: For 58913/59382 co-relation queries the response was YES. [2024-11-13 12:53:24,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29191 conditions, 4926 events. 2796/4926 cut-off events. For 58913/59382 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 35331 event pairs, 510 based on Foata normal form. 216/5011 useless extension candidates. Maximal degree in co-relation 29155. Up to 2853 conditions per place. [2024-11-13 12:53:24,539 INFO L140 encePairwiseOnDemand]: 34/46 looper letters, 65 selfloop transitions, 37 changer transitions 43/164 dead transitions. [2024-11-13 12:53:24,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 164 transitions, 2358 flow [2024-11-13 12:53:24,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 12:53:24,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 12:53:24,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 232 transitions. [2024-11-13 12:53:24,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5603864734299517 [2024-11-13 12:53:24,542 INFO L175 Difference]: Start difference. First operand has 91 places, 92 transitions, 1074 flow. Second operand 9 states and 232 transitions. [2024-11-13 12:53:24,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 164 transitions, 2358 flow [2024-11-13 12:53:24,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 164 transitions, 2122 flow, removed 99 selfloop flow, removed 7 redundant places. [2024-11-13 12:53:24,630 INFO L231 Difference]: Finished difference. Result has 94 places, 101 transitions, 1293 flow [2024-11-13 12:53:24,630 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1293, PETRI_PLACES=94, PETRI_TRANSITIONS=101} [2024-11-13 12:53:24,631 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 43 predicate places. [2024-11-13 12:53:24,631 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 101 transitions, 1293 flow [2024-11-13 12:53:24,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.6) internal successors, (186), 10 states have internal predecessors, (186), 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) [2024-11-13 12:53:24,631 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:24,632 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:24,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 12:53:24,632 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:24,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:24,632 INFO L85 PathProgramCache]: Analyzing trace with hash -2028325822, now seen corresponding path program 1 times [2024-11-13 12:53:24,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:24,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440738424] [2024-11-13 12:53:24,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:24,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:26,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:26,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:26,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440738424] [2024-11-13 12:53:26,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440738424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:26,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:26,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 12:53:26,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392018883] [2024-11-13 12:53:26,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:26,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 12:53:26,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:26,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 12:53:26,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:53:26,686 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:26,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 101 transitions, 1293 flow. Second operand has 11 states, 11 states have (on average 18.545454545454547) internal successors, (204), 11 states have internal predecessors, (204), 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) [2024-11-13 12:53:26,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:26,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:26,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:28,441 INFO L124 PetriNetUnfolderBase]: 3048/5415 cut-off events. [2024-11-13 12:53:28,441 INFO L125 PetriNetUnfolderBase]: For 71258/71774 co-relation queries the response was YES. [2024-11-13 12:53:28,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33271 conditions, 5415 events. 3048/5415 cut-off events. For 71258/71774 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 39919 event pairs, 387 based on Foata normal form. 216/5498 useless extension candidates. Maximal degree in co-relation 33233. Up to 3042 conditions per place. [2024-11-13 12:53:28,474 INFO L140 encePairwiseOnDemand]: 34/46 looper letters, 89 selfloop transitions, 68 changer transitions 54/230 dead transitions. [2024-11-13 12:53:28,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 230 transitions, 3306 flow [2024-11-13 12:53:28,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 12:53:28,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 12:53:28,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 338 transitions. [2024-11-13 12:53:28,477 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5652173913043478 [2024-11-13 12:53:28,477 INFO L175 Difference]: Start difference. First operand has 94 places, 101 transitions, 1293 flow. Second operand 13 states and 338 transitions. [2024-11-13 12:53:28,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 230 transitions, 3306 flow [2024-11-13 12:53:28,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 230 transitions, 2971 flow, removed 131 selfloop flow, removed 6 redundant places. [2024-11-13 12:53:28,634 INFO L231 Difference]: Finished difference. Result has 104 places, 132 transitions, 1928 flow [2024-11-13 12:53:28,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1171, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1928, PETRI_PLACES=104, PETRI_TRANSITIONS=132} [2024-11-13 12:53:28,636 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 53 predicate places. [2024-11-13 12:53:28,636 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 132 transitions, 1928 flow [2024-11-13 12:53:28,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.545454545454547) internal successors, (204), 11 states have internal predecessors, (204), 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) [2024-11-13 12:53:28,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:28,636 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:28,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 12:53:28,639 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:28,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:28,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1705773890, now seen corresponding path program 2 times [2024-11-13 12:53:28,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:28,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859791136] [2024-11-13 12:53:28,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:28,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:28,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:28,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:28,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859791136] [2024-11-13 12:53:28,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859791136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:28,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:28,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:53:28,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543045620] [2024-11-13 12:53:28,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:28,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:53:28,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:28,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:53:28,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:53:28,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 46 [2024-11-13 12:53:28,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 132 transitions, 1928 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2024-11-13 12:53:28,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:28,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 46 [2024-11-13 12:53:28,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:30,506 INFO L124 PetriNetUnfolderBase]: 5677/9002 cut-off events. [2024-11-13 12:53:30,506 INFO L125 PetriNetUnfolderBase]: For 133069/134525 co-relation queries the response was YES. [2024-11-13 12:53:30,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50777 conditions, 9002 events. 5677/9002 cut-off events. For 133069/134525 co-relation queries the response was YES. Maximal size of possible extension queue 486. Compared 60123 event pairs, 630 based on Foata normal form. 1022/9820 useless extension candidates. Maximal degree in co-relation 50735. Up to 4456 conditions per place. [2024-11-13 12:53:30,573 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 170 selfloop transitions, 5 changer transitions 41/235 dead transitions. [2024-11-13 12:53:30,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 235 transitions, 3903 flow [2024-11-13 12:53:30,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:53:30,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 12:53:30,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 114 transitions. [2024-11-13 12:53:30,576 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6195652173913043 [2024-11-13 12:53:30,576 INFO L175 Difference]: Start difference. First operand has 104 places, 132 transitions, 1928 flow. Second operand 4 states and 114 transitions. [2024-11-13 12:53:30,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 235 transitions, 3903 flow [2024-11-13 12:53:30,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 235 transitions, 3729 flow, removed 52 selfloop flow, removed 8 redundant places. [2024-11-13 12:53:30,726 INFO L231 Difference]: Finished difference. Result has 97 places, 118 transitions, 1556 flow [2024-11-13 12:53:30,726 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1613, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1556, PETRI_PLACES=97, PETRI_TRANSITIONS=118} [2024-11-13 12:53:30,726 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 46 predicate places. [2024-11-13 12:53:30,726 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 118 transitions, 1556 flow [2024-11-13 12:53:30,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2024-11-13 12:53:30,727 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:30,727 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:30,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 12:53:30,727 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:30,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:30,727 INFO L85 PathProgramCache]: Analyzing trace with hash 613842535, now seen corresponding path program 1 times [2024-11-13 12:53:30,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:30,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359922946] [2024-11-13 12:53:30,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:30,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:32,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:32,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:32,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359922946] [2024-11-13 12:53:32,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359922946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:32,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:32,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 12:53:32,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377224645] [2024-11-13 12:53:32,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:32,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 12:53:32,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:32,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 12:53:32,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:53:32,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:32,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 118 transitions, 1556 flow. Second operand has 11 states, 11 states have (on average 18.545454545454547) internal successors, (204), 11 states have internal predecessors, (204), 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) [2024-11-13 12:53:32,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:32,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:32,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:34,789 INFO L124 PetriNetUnfolderBase]: 3830/6950 cut-off events. [2024-11-13 12:53:34,789 INFO L125 PetriNetUnfolderBase]: For 74637/75742 co-relation queries the response was YES. [2024-11-13 12:53:34,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38867 conditions, 6950 events. 3830/6950 cut-off events. For 74637/75742 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 53559 event pairs, 1077 based on Foata normal form. 226/6733 useless extension candidates. Maximal degree in co-relation 38827. Up to 4059 conditions per place. [2024-11-13 12:53:34,827 INFO L140 encePairwiseOnDemand]: 34/46 looper letters, 73 selfloop transitions, 57 changer transitions 43/196 dead transitions. [2024-11-13 12:53:34,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 196 transitions, 2796 flow [2024-11-13 12:53:34,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 12:53:34,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-13 12:53:34,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 282 transitions. [2024-11-13 12:53:34,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5573122529644269 [2024-11-13 12:53:34,830 INFO L175 Difference]: Start difference. First operand has 97 places, 118 transitions, 1556 flow. Second operand 11 states and 282 transitions. [2024-11-13 12:53:34,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 196 transitions, 2796 flow [2024-11-13 12:53:34,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 196 transitions, 2794 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 12:53:34,895 INFO L231 Difference]: Finished difference. Result has 112 places, 121 transitions, 1863 flow [2024-11-13 12:53:34,895 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1554, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1863, PETRI_PLACES=112, PETRI_TRANSITIONS=121} [2024-11-13 12:53:34,896 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 61 predicate places. [2024-11-13 12:53:34,896 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 121 transitions, 1863 flow [2024-11-13 12:53:34,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.545454545454547) internal successors, (204), 11 states have internal predecessors, (204), 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) [2024-11-13 12:53:34,896 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:34,896 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:34,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 12:53:34,896 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:34,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:34,897 INFO L85 PathProgramCache]: Analyzing trace with hash 305337301, now seen corresponding path program 2 times [2024-11-13 12:53:34,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:34,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799161775] [2024-11-13 12:53:34,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:34,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:34,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:36,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:36,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799161775] [2024-11-13 12:53:36,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799161775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:36,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:36,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 12:53:36,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572578882] [2024-11-13 12:53:36,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:36,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 12:53:36,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:36,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 12:53:36,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:53:36,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:36,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 121 transitions, 1863 flow. Second operand has 11 states, 11 states have (on average 18.545454545454547) internal successors, (204), 11 states have internal predecessors, (204), 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) [2024-11-13 12:53:36,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:36,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:36,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:38,379 INFO L124 PetriNetUnfolderBase]: 3488/6287 cut-off events. [2024-11-13 12:53:38,379 INFO L125 PetriNetUnfolderBase]: For 97549/98646 co-relation queries the response was YES. [2024-11-13 12:53:38,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39476 conditions, 6287 events. 3488/6287 cut-off events. For 97549/98646 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 47019 event pairs, 1088 based on Foata normal form. 190/6043 useless extension candidates. Maximal degree in co-relation 39429. Up to 4097 conditions per place. [2024-11-13 12:53:38,438 INFO L140 encePairwiseOnDemand]: 35/46 looper letters, 94 selfloop transitions, 51 changer transitions 32/200 dead transitions. [2024-11-13 12:53:38,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 200 transitions, 3322 flow [2024-11-13 12:53:38,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 12:53:38,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-13 12:53:38,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 300 transitions. [2024-11-13 12:53:38,440 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5434782608695652 [2024-11-13 12:53:38,440 INFO L175 Difference]: Start difference. First operand has 112 places, 121 transitions, 1863 flow. Second operand 12 states and 300 transitions. [2024-11-13 12:53:38,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 200 transitions, 3322 flow [2024-11-13 12:53:38,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 200 transitions, 3042 flow, removed 94 selfloop flow, removed 12 redundant places. [2024-11-13 12:53:38,559 INFO L231 Difference]: Finished difference. Result has 112 places, 138 transitions, 2253 flow [2024-11-13 12:53:38,559 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1712, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2253, PETRI_PLACES=112, PETRI_TRANSITIONS=138} [2024-11-13 12:53:38,560 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 61 predicate places. [2024-11-13 12:53:38,560 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 138 transitions, 2253 flow [2024-11-13 12:53:38,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.545454545454547) internal successors, (204), 11 states have internal predecessors, (204), 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) [2024-11-13 12:53:38,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:38,561 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:38,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 12:53:38,561 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:38,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:38,561 INFO L85 PathProgramCache]: Analyzing trace with hash -39399531, now seen corresponding path program 3 times [2024-11-13 12:53:38,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:38,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050308251] [2024-11-13 12:53:38,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:38,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:38,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:38,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:38,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050308251] [2024-11-13 12:53:38,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050308251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:38,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:38,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:53:38,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596085522] [2024-11-13 12:53:38,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:38,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:53:38,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:38,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:53:38,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:53:38,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 46 [2024-11-13 12:53:38,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 138 transitions, 2253 flow. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:38,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:38,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 46 [2024-11-13 12:53:38,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:40,238 INFO L124 PetriNetUnfolderBase]: 4090/6533 cut-off events. [2024-11-13 12:53:40,238 INFO L125 PetriNetUnfolderBase]: For 128301/129454 co-relation queries the response was YES. [2024-11-13 12:53:40,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41621 conditions, 6533 events. 4090/6533 cut-off events. For 128301/129454 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 41191 event pairs, 421 based on Foata normal form. 641/6962 useless extension candidates. Maximal degree in co-relation 41576. Up to 2336 conditions per place. [2024-11-13 12:53:40,266 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 159 selfloop transitions, 8 changer transitions 28/214 dead transitions. [2024-11-13 12:53:40,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 214 transitions, 3871 flow [2024-11-13 12:53:40,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:53:40,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:53:40,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2024-11-13 12:53:40,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6130434782608696 [2024-11-13 12:53:40,268 INFO L175 Difference]: Start difference. First operand has 112 places, 138 transitions, 2253 flow. Second operand 5 states and 141 transitions. [2024-11-13 12:53:40,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 214 transitions, 3871 flow [2024-11-13 12:53:40,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 214 transitions, 3604 flow, removed 94 selfloop flow, removed 9 redundant places. [2024-11-13 12:53:40,339 INFO L231 Difference]: Finished difference. Result has 105 places, 128 transitions, 1906 flow [2024-11-13 12:53:40,339 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1957, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1906, PETRI_PLACES=105, PETRI_TRANSITIONS=128} [2024-11-13 12:53:40,340 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 54 predicate places. [2024-11-13 12:53:40,340 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 128 transitions, 1906 flow [2024-11-13 12:53:40,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:53:40,340 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:40,340 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:40,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 12:53:40,340 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:40,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:40,341 INFO L85 PathProgramCache]: Analyzing trace with hash -844336184, now seen corresponding path program 1 times [2024-11-13 12:53:40,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:40,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94624012] [2024-11-13 12:53:40,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:40,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:40,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:40,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94624012] [2024-11-13 12:53:40,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94624012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:40,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:40,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:53:40,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445282968] [2024-11-13 12:53:40,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:40,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:53:40,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:40,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:53:40,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:53:40,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 46 [2024-11-13 12:53:40,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 128 transitions, 1906 flow. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 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) [2024-11-13 12:53:40,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:40,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 46 [2024-11-13 12:53:40,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:41,510 INFO L124 PetriNetUnfolderBase]: 3144/5049 cut-off events. [2024-11-13 12:53:41,510 INFO L125 PetriNetUnfolderBase]: For 87565/88586 co-relation queries the response was YES. [2024-11-13 12:53:41,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32091 conditions, 5049 events. 3144/5049 cut-off events. For 87565/88586 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 31588 event pairs, 371 based on Foata normal form. 358/5231 useless extension candidates. Maximal degree in co-relation 32048. Up to 2071 conditions per place. [2024-11-13 12:53:41,532 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 134 selfloop transitions, 11 changer transitions 19/182 dead transitions. [2024-11-13 12:53:41,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 182 transitions, 2947 flow [2024-11-13 12:53:41,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:53:41,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 12:53:41,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 153 transitions. [2024-11-13 12:53:41,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5543478260869565 [2024-11-13 12:53:41,534 INFO L175 Difference]: Start difference. First operand has 105 places, 128 transitions, 1906 flow. Second operand 6 states and 153 transitions. [2024-11-13 12:53:41,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 182 transitions, 2947 flow [2024-11-13 12:53:41,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 182 transitions, 2794 flow, removed 59 selfloop flow, removed 5 redundant places. [2024-11-13 12:53:41,643 INFO L231 Difference]: Finished difference. Result has 107 places, 119 transitions, 1692 flow [2024-11-13 12:53:41,643 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1781, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1692, PETRI_PLACES=107, PETRI_TRANSITIONS=119} [2024-11-13 12:53:41,643 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 56 predicate places. [2024-11-13 12:53:41,643 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 119 transitions, 1692 flow [2024-11-13 12:53:41,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 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) [2024-11-13 12:53:41,643 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:41,644 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:41,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 12:53:41,644 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:41,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:41,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1144811788, now seen corresponding path program 1 times [2024-11-13 12:53:41,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:41,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584644906] [2024-11-13 12:53:41,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:41,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:42,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:42,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:42,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584644906] [2024-11-13 12:53:42,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584644906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:42,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:42,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:53:42,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529341671] [2024-11-13 12:53:42,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:42,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 12:53:42,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:42,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 12:53:42,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:53:42,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:42,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 119 transitions, 1692 flow. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-11-13 12:53:42,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:42,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:42,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:43,509 INFO L124 PetriNetUnfolderBase]: 2614/5218 cut-off events. [2024-11-13 12:53:43,509 INFO L125 PetriNetUnfolderBase]: For 46586/47582 co-relation queries the response was YES. [2024-11-13 12:53:43,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24927 conditions, 5218 events. 2614/5218 cut-off events. For 46586/47582 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 42854 event pairs, 533 based on Foata normal form. 122/4845 useless extension candidates. Maximal degree in co-relation 24884. Up to 1818 conditions per place. [2024-11-13 12:53:43,567 INFO L140 encePairwiseOnDemand]: 34/46 looper letters, 74 selfloop transitions, 35 changer transitions 31/167 dead transitions. [2024-11-13 12:53:43,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 167 transitions, 2345 flow [2024-11-13 12:53:43,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 12:53:43,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 12:53:43,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 223 transitions. [2024-11-13 12:53:43,569 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.538647342995169 [2024-11-13 12:53:43,569 INFO L175 Difference]: Start difference. First operand has 107 places, 119 transitions, 1692 flow. Second operand 9 states and 223 transitions. [2024-11-13 12:53:43,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 167 transitions, 2345 flow [2024-11-13 12:53:43,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 167 transitions, 2037 flow, removed 135 selfloop flow, removed 13 redundant places. [2024-11-13 12:53:43,775 INFO L231 Difference]: Finished difference. Result has 107 places, 128 transitions, 1675 flow [2024-11-13 12:53:43,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1446, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1675, PETRI_PLACES=107, PETRI_TRANSITIONS=128} [2024-11-13 12:53:43,778 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 56 predicate places. [2024-11-13 12:53:43,778 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 128 transitions, 1675 flow [2024-11-13 12:53:43,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-11-13 12:53:43,779 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:43,779 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:43,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 12:53:43,779 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:43,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:43,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1126770512, now seen corresponding path program 2 times [2024-11-13 12:53:43,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:43,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149129756] [2024-11-13 12:53:43,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:43,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:45,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:45,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:45,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149129756] [2024-11-13 12:53:45,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149129756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:45,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:45,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 12:53:45,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489606417] [2024-11-13 12:53:45,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:45,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 12:53:45,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:45,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 12:53:45,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:53:45,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:45,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 128 transitions, 1675 flow. Second operand has 11 states, 11 states have (on average 18.727272727272727) internal successors, (206), 11 states have internal predecessors, (206), 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) [2024-11-13 12:53:45,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:45,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:45,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:46,224 INFO L124 PetriNetUnfolderBase]: 1942/3922 cut-off events. [2024-11-13 12:53:46,224 INFO L125 PetriNetUnfolderBase]: For 24375/24792 co-relation queries the response was YES. [2024-11-13 12:53:46,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17547 conditions, 3922 events. 1942/3922 cut-off events. For 24375/24792 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 30251 event pairs, 346 based on Foata normal form. 116/3639 useless extension candidates. Maximal degree in co-relation 17506. Up to 1355 conditions per place. [2024-11-13 12:53:46,243 INFO L140 encePairwiseOnDemand]: 36/46 looper letters, 60 selfloop transitions, 63 changer transitions 22/172 dead transitions. [2024-11-13 12:53:46,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 172 transitions, 2241 flow [2024-11-13 12:53:46,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 12:53:46,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-13 12:53:46,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 326 transitions. [2024-11-13 12:53:46,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5062111801242236 [2024-11-13 12:53:46,245 INFO L175 Difference]: Start difference. First operand has 107 places, 128 transitions, 1675 flow. Second operand 14 states and 326 transitions. [2024-11-13 12:53:46,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 172 transitions, 2241 flow [2024-11-13 12:53:46,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 172 transitions, 2194 flow, removed 23 selfloop flow, removed 5 redundant places. [2024-11-13 12:53:46,270 INFO L231 Difference]: Finished difference. Result has 116 places, 126 transitions, 1820 flow [2024-11-13 12:53:46,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1640, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1820, PETRI_PLACES=116, PETRI_TRANSITIONS=126} [2024-11-13 12:53:46,270 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 65 predicate places. [2024-11-13 12:53:46,270 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 126 transitions, 1820 flow [2024-11-13 12:53:46,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.727272727272727) internal successors, (206), 11 states have internal predecessors, (206), 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) [2024-11-13 12:53:46,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:46,271 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:46,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 12:53:46,271 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:46,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:46,271 INFO L85 PathProgramCache]: Analyzing trace with hash -23371916, now seen corresponding path program 3 times [2024-11-13 12:53:46,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:46,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070477746] [2024-11-13 12:53:46,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:46,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:47,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:47,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:47,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070477746] [2024-11-13 12:53:47,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070477746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:47,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:47,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 12:53:47,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638645658] [2024-11-13 12:53:47,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:47,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 12:53:47,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:47,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 12:53:47,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-13 12:53:47,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:47,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 126 transitions, 1820 flow. Second operand has 12 states, 12 states have (on average 18.583333333333332) internal successors, (223), 12 states have internal predecessors, (223), 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) [2024-11-13 12:53:47,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:47,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:47,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:48,932 INFO L124 PetriNetUnfolderBase]: 1907/3757 cut-off events. [2024-11-13 12:53:48,932 INFO L125 PetriNetUnfolderBase]: For 28811/29234 co-relation queries the response was YES. [2024-11-13 12:53:48,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17727 conditions, 3757 events. 1907/3757 cut-off events. For 28811/29234 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 28667 event pairs, 335 based on Foata normal form. 128/3527 useless extension candidates. Maximal degree in co-relation 17684. Up to 1593 conditions per place. [2024-11-13 12:53:48,950 INFO L140 encePairwiseOnDemand]: 34/46 looper letters, 73 selfloop transitions, 60 changer transitions 19/179 dead transitions. [2024-11-13 12:53:48,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 179 transitions, 2461 flow [2024-11-13 12:53:48,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 12:53:48,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-13 12:53:48,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 349 transitions. [2024-11-13 12:53:48,952 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5057971014492754 [2024-11-13 12:53:48,952 INFO L175 Difference]: Start difference. First operand has 116 places, 126 transitions, 1820 flow. Second operand 15 states and 349 transitions. [2024-11-13 12:53:48,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 179 transitions, 2461 flow [2024-11-13 12:53:48,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 179 transitions, 2261 flow, removed 58 selfloop flow, removed 10 redundant places. [2024-11-13 12:53:48,986 INFO L231 Difference]: Finished difference. Result has 123 places, 134 transitions, 1942 flow [2024-11-13 12:53:48,986 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1632, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1942, PETRI_PLACES=123, PETRI_TRANSITIONS=134} [2024-11-13 12:53:48,987 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 72 predicate places. [2024-11-13 12:53:48,987 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 134 transitions, 1942 flow [2024-11-13 12:53:48,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 18.583333333333332) internal successors, (223), 12 states have internal predecessors, (223), 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) [2024-11-13 12:53:48,987 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:48,987 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:48,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 12:53:48,987 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:48,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:48,987 INFO L85 PathProgramCache]: Analyzing trace with hash 636106214, now seen corresponding path program 4 times [2024-11-13 12:53:48,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:48,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811032482] [2024-11-13 12:53:48,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:48,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:51,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:51,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:51,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811032482] [2024-11-13 12:53:51,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811032482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:51,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:51,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 12:53:51,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296056725] [2024-11-13 12:53:51,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:51,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 12:53:51,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:51,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 12:53:51,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-13 12:53:51,351 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:51,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 134 transitions, 1942 flow. Second operand has 13 states, 13 states have (on average 18.46153846153846) internal successors, (240), 13 states have internal predecessors, (240), 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) [2024-11-13 12:53:51,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:51,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:51,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:52,738 INFO L124 PetriNetUnfolderBase]: 2064/4121 cut-off events. [2024-11-13 12:53:52,738 INFO L125 PetriNetUnfolderBase]: For 30821/31190 co-relation queries the response was YES. [2024-11-13 12:53:52,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19480 conditions, 4121 events. 2064/4121 cut-off events. For 30821/31190 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 32068 event pairs, 206 based on Foata normal form. 120/3907 useless extension candidates. Maximal degree in co-relation 19435. Up to 1467 conditions per place. [2024-11-13 12:53:52,766 INFO L140 encePairwiseOnDemand]: 35/46 looper letters, 41 selfloop transitions, 82 changer transitions 22/172 dead transitions. [2024-11-13 12:53:52,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 172 transitions, 2519 flow [2024-11-13 12:53:52,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 12:53:52,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-13 12:53:52,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 261 transitions. [2024-11-13 12:53:52,768 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5158102766798419 [2024-11-13 12:53:52,768 INFO L175 Difference]: Start difference. First operand has 123 places, 134 transitions, 1942 flow. Second operand 11 states and 261 transitions. [2024-11-13 12:53:52,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 172 transitions, 2519 flow [2024-11-13 12:53:52,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 172 transitions, 2346 flow, removed 65 selfloop flow, removed 7 redundant places. [2024-11-13 12:53:52,814 INFO L231 Difference]: Finished difference. Result has 128 places, 135 transitions, 2052 flow [2024-11-13 12:53:52,815 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1797, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2052, PETRI_PLACES=128, PETRI_TRANSITIONS=135} [2024-11-13 12:53:52,815 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 77 predicate places. [2024-11-13 12:53:52,815 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 135 transitions, 2052 flow [2024-11-13 12:53:52,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 18.46153846153846) internal successors, (240), 13 states have internal predecessors, (240), 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) [2024-11-13 12:53:52,815 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:52,815 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:52,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 12:53:52,816 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:52,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:52,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1379469394, now seen corresponding path program 5 times [2024-11-13 12:53:52,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:52,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979156821] [2024-11-13 12:53:52,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:52,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:53,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:53,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:53,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979156821] [2024-11-13 12:53:53,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979156821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:53,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:53,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:53:53,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27618409] [2024-11-13 12:53:53,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:53,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 12:53:53,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:53,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 12:53:53,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:53:53,369 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:53,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 135 transitions, 2052 flow. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-11-13 12:53:53,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:53,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:53,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:54,430 INFO L124 PetriNetUnfolderBase]: 2345/4753 cut-off events. [2024-11-13 12:53:54,430 INFO L125 PetriNetUnfolderBase]: For 33517/33881 co-relation queries the response was YES. [2024-11-13 12:53:54,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21773 conditions, 4753 events. 2345/4753 cut-off events. For 33517/33881 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 39213 event pairs, 395 based on Foata normal form. 127/4424 useless extension candidates. Maximal degree in co-relation 21726. Up to 1769 conditions per place. [2024-11-13 12:53:54,461 INFO L140 encePairwiseOnDemand]: 34/46 looper letters, 73 selfloop transitions, 39 changer transitions 24/163 dead transitions. [2024-11-13 12:53:54,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 163 transitions, 2516 flow [2024-11-13 12:53:54,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 12:53:54,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 12:53:54,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 193 transitions. [2024-11-13 12:53:54,463 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5244565217391305 [2024-11-13 12:53:54,463 INFO L175 Difference]: Start difference. First operand has 128 places, 135 transitions, 2052 flow. Second operand 8 states and 193 transitions. [2024-11-13 12:53:54,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 163 transitions, 2516 flow [2024-11-13 12:53:54,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 163 transitions, 2267 flow, removed 74 selfloop flow, removed 10 redundant places. [2024-11-13 12:53:54,557 INFO L231 Difference]: Finished difference. Result has 125 places, 131 transitions, 1900 flow [2024-11-13 12:53:54,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1828, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1900, PETRI_PLACES=125, PETRI_TRANSITIONS=131} [2024-11-13 12:53:54,557 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 74 predicate places. [2024-11-13 12:53:54,557 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 131 transitions, 1900 flow [2024-11-13 12:53:54,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-11-13 12:53:54,557 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:54,558 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:54,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 12:53:54,558 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:54,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:54,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1291692428, now seen corresponding path program 6 times [2024-11-13 12:53:54,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:54,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126489944] [2024-11-13 12:53:54,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:54,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:55,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:55,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:55,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126489944] [2024-11-13 12:53:55,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126489944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:55,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:55,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 12:53:55,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441430739] [2024-11-13 12:53:55,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:55,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 12:53:55,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:55,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 12:53:55,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:53:55,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:55,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 131 transitions, 1900 flow. Second operand has 11 states, 11 states have (on average 18.727272727272727) internal successors, (206), 11 states have internal predecessors, (206), 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) [2024-11-13 12:53:55,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:55,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:55,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:57,225 INFO L124 PetriNetUnfolderBase]: 2486/5230 cut-off events. [2024-11-13 12:53:57,225 INFO L125 PetriNetUnfolderBase]: For 26711/27232 co-relation queries the response was YES. [2024-11-13 12:53:57,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21992 conditions, 5230 events. 2486/5230 cut-off events. For 26711/27232 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 45630 event pairs, 513 based on Foata normal form. 189/4867 useless extension candidates. Maximal degree in co-relation 21947. Up to 1374 conditions per place. [2024-11-13 12:53:57,249 INFO L140 encePairwiseOnDemand]: 36/46 looper letters, 69 selfloop transitions, 61 changer transitions 35/192 dead transitions. [2024-11-13 12:53:57,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 192 transitions, 2650 flow [2024-11-13 12:53:57,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 12:53:57,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 12:53:57,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 310 transitions. [2024-11-13 12:53:57,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5183946488294314 [2024-11-13 12:53:57,251 INFO L175 Difference]: Start difference. First operand has 125 places, 131 transitions, 1900 flow. Second operand 13 states and 310 transitions. [2024-11-13 12:53:57,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 192 transitions, 2650 flow [2024-11-13 12:53:57,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 192 transitions, 2426 flow, removed 19 selfloop flow, removed 9 redundant places. [2024-11-13 12:53:57,309 INFO L231 Difference]: Finished difference. Result has 130 places, 128 transitions, 1808 flow [2024-11-13 12:53:57,309 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1705, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1808, PETRI_PLACES=130, PETRI_TRANSITIONS=128} [2024-11-13 12:53:57,309 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 79 predicate places. [2024-11-13 12:53:57,309 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 128 transitions, 1808 flow [2024-11-13 12:53:57,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.727272727272727) internal successors, (206), 11 states have internal predecessors, (206), 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) [2024-11-13 12:53:57,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:57,310 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:57,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 12:53:57,310 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:57,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:57,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1367922926, now seen corresponding path program 7 times [2024-11-13 12:53:57,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:57,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725176682] [2024-11-13 12:53:57,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:57,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:58,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:58,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:58,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725176682] [2024-11-13 12:53:58,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725176682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:58,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:58,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 12:53:58,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536767395] [2024-11-13 12:53:58,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:58,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 12:53:58,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:58,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 12:53:58,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 12:53:58,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:58,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 128 transitions, 1808 flow. Second operand has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 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) [2024-11-13 12:53:58,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:58,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:58,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:58,906 INFO L124 PetriNetUnfolderBase]: 1953/4085 cut-off events. [2024-11-13 12:53:58,906 INFO L125 PetriNetUnfolderBase]: For 18241/18678 co-relation queries the response was YES. [2024-11-13 12:53:58,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16588 conditions, 4085 events. 1953/4085 cut-off events. For 18241/18678 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 33710 event pairs, 410 based on Foata normal form. 139/3781 useless extension candidates. Maximal degree in co-relation 16546. Up to 2007 conditions per place. [2024-11-13 12:53:58,930 INFO L140 encePairwiseOnDemand]: 35/46 looper letters, 67 selfloop transitions, 45 changer transitions 20/159 dead transitions. [2024-11-13 12:53:58,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 159 transitions, 2162 flow [2024-11-13 12:53:58,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 12:53:58,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 12:53:58,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 293 transitions. [2024-11-13 12:53:58,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4899665551839465 [2024-11-13 12:53:58,931 INFO L175 Difference]: Start difference. First operand has 130 places, 128 transitions, 1808 flow. Second operand 13 states and 293 transitions. [2024-11-13 12:53:58,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 159 transitions, 2162 flow [2024-11-13 12:53:58,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 159 transitions, 2024 flow, removed 29 selfloop flow, removed 8 redundant places. [2024-11-13 12:53:58,987 INFO L231 Difference]: Finished difference. Result has 136 places, 123 transitions, 1703 flow [2024-11-13 12:53:58,988 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1676, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1703, PETRI_PLACES=136, PETRI_TRANSITIONS=123} [2024-11-13 12:53:58,988 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 85 predicate places. [2024-11-13 12:53:58,988 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 123 transitions, 1703 flow [2024-11-13 12:53:58,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 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) [2024-11-13 12:53:58,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:58,988 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:58,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 12:53:58,989 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:53:58,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:58,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1151494688, now seen corresponding path program 8 times [2024-11-13 12:53:58,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:58,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979448925] [2024-11-13 12:53:58,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:58,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:53:59,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:59,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979448925] [2024-11-13 12:53:59,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979448925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:59,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:59,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 12:53:59,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606985208] [2024-11-13 12:53:59,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:59,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 12:53:59,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:59,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 12:53:59,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-13 12:53:59,547 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:53:59,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 123 transitions, 1703 flow. Second operand has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 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) [2024-11-13 12:53:59,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:59,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:53:59,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:00,455 INFO L124 PetriNetUnfolderBase]: 2264/4769 cut-off events. [2024-11-13 12:54:00,455 INFO L125 PetriNetUnfolderBase]: For 17696/18229 co-relation queries the response was YES. [2024-11-13 12:54:00,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18258 conditions, 4769 events. 2264/4769 cut-off events. For 17696/18229 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 41089 event pairs, 903 based on Foata normal form. 153/4381 useless extension candidates. Maximal degree in co-relation 18217. Up to 1285 conditions per place. [2024-11-13 12:54:00,481 INFO L140 encePairwiseOnDemand]: 38/46 looper letters, 52 selfloop transitions, 24 changer transitions 54/157 dead transitions. [2024-11-13 12:54:00,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 157 transitions, 2123 flow [2024-11-13 12:54:00,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 12:54:00,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 12:54:00,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 200 transitions. [2024-11-13 12:54:00,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5434782608695652 [2024-11-13 12:54:00,482 INFO L175 Difference]: Start difference. First operand has 136 places, 123 transitions, 1703 flow. Second operand 8 states and 200 transitions. [2024-11-13 12:54:00,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 157 transitions, 2123 flow [2024-11-13 12:54:00,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 157 transitions, 2013 flow, removed 10 selfloop flow, removed 10 redundant places. [2024-11-13 12:54:00,515 INFO L231 Difference]: Finished difference. Result has 133 places, 95 transitions, 1186 flow [2024-11-13 12:54:00,515 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1599, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1186, PETRI_PLACES=133, PETRI_TRANSITIONS=95} [2024-11-13 12:54:00,515 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 82 predicate places. [2024-11-13 12:54:00,515 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 95 transitions, 1186 flow [2024-11-13 12:54:00,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.11111111111111) internal successors, (172), 9 states have internal predecessors, (172), 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) [2024-11-13 12:54:00,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:00,516 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:00,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 12:54:00,516 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:00,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:00,516 INFO L85 PathProgramCache]: Analyzing trace with hash -409873592, now seen corresponding path program 9 times [2024-11-13 12:54:00,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:00,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980413433] [2024-11-13 12:54:00,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:00,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:00,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:00,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:00,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980413433] [2024-11-13 12:54:00,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980413433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:00,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:00,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:54:00,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651632959] [2024-11-13 12:54:00,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:00,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 12:54:00,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:00,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 12:54:00,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:54:00,928 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:54:00,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 95 transitions, 1186 flow. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-11-13 12:54:00,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:00,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:54:00,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:01,587 INFO L124 PetriNetUnfolderBase]: 1671/3517 cut-off events. [2024-11-13 12:54:01,587 INFO L125 PetriNetUnfolderBase]: For 12084/12402 co-relation queries the response was YES. [2024-11-13 12:54:01,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12406 conditions, 3517 events. 1671/3517 cut-off events. For 12084/12402 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 28446 event pairs, 556 based on Foata normal form. 83/3222 useless extension candidates. Maximal degree in co-relation 12365. Up to 1267 conditions per place. [2024-11-13 12:54:01,602 INFO L140 encePairwiseOnDemand]: 37/46 looper letters, 47 selfloop transitions, 23 changer transitions 20/117 dead transitions. [2024-11-13 12:54:01,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 117 transitions, 1476 flow [2024-11-13 12:54:01,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 12:54:01,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 12:54:01,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 188 transitions. [2024-11-13 12:54:01,603 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5108695652173914 [2024-11-13 12:54:01,603 INFO L175 Difference]: Start difference. First operand has 133 places, 95 transitions, 1186 flow. Second operand 8 states and 188 transitions. [2024-11-13 12:54:01,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 117 transitions, 1476 flow [2024-11-13 12:54:01,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 117 transitions, 1327 flow, removed 17 selfloop flow, removed 14 redundant places. [2024-11-13 12:54:01,619 INFO L231 Difference]: Finished difference. Result has 122 places, 90 transitions, 1037 flow [2024-11-13 12:54:01,619 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1054, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1037, PETRI_PLACES=122, PETRI_TRANSITIONS=90} [2024-11-13 12:54:01,619 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 71 predicate places. [2024-11-13 12:54:01,619 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 90 transitions, 1037 flow [2024-11-13 12:54:01,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-11-13 12:54:01,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:01,620 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:01,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 12:54:01,620 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:01,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:01,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1982060000, now seen corresponding path program 10 times [2024-11-13 12:54:01,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:01,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596229504] [2024-11-13 12:54:01,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:01,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:02,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:02,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:02,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596229504] [2024-11-13 12:54:02,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596229504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:02,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:02,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 12:54:02,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534196607] [2024-11-13 12:54:02,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:02,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 12:54:02,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:02,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 12:54:02,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:54:02,705 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:54:02,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 90 transitions, 1037 flow. Second operand has 11 states, 11 states have (on average 18.727272727272727) internal successors, (206), 11 states have internal predecessors, (206), 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) [2024-11-13 12:54:02,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:02,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:54:02,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:03,528 INFO L124 PetriNetUnfolderBase]: 1425/2963 cut-off events. [2024-11-13 12:54:03,528 INFO L125 PetriNetUnfolderBase]: For 8724/8997 co-relation queries the response was YES. [2024-11-13 12:54:03,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10397 conditions, 2963 events. 1425/2963 cut-off events. For 8724/8997 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 22602 event pairs, 269 based on Foata normal form. 72/2755 useless extension candidates. Maximal degree in co-relation 10362. Up to 1271 conditions per place. [2024-11-13 12:54:03,551 INFO L140 encePairwiseOnDemand]: 35/46 looper letters, 48 selfloop transitions, 24 changer transitions 20/119 dead transitions. [2024-11-13 12:54:03,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 119 transitions, 1338 flow [2024-11-13 12:54:03,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 12:54:03,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-13 12:54:03,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 248 transitions. [2024-11-13 12:54:03,553 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4901185770750988 [2024-11-13 12:54:03,553 INFO L175 Difference]: Start difference. First operand has 122 places, 90 transitions, 1037 flow. Second operand 11 states and 248 transitions. [2024-11-13 12:54:03,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 119 transitions, 1338 flow [2024-11-13 12:54:03,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 119 transitions, 1169 flow, removed 12 selfloop flow, removed 16 redundant places. [2024-11-13 12:54:03,570 INFO L231 Difference]: Finished difference. Result has 119 places, 88 transitions, 930 flow [2024-11-13 12:54:03,571 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=878, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=930, PETRI_PLACES=119, PETRI_TRANSITIONS=88} [2024-11-13 12:54:03,571 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 68 predicate places. [2024-11-13 12:54:03,571 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 88 transitions, 930 flow [2024-11-13 12:54:03,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.727272727272727) internal successors, (206), 11 states have internal predecessors, (206), 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) [2024-11-13 12:54:03,572 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:03,572 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:03,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 12:54:03,572 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:03,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:03,572 INFO L85 PathProgramCache]: Analyzing trace with hash 247962992, now seen corresponding path program 11 times [2024-11-13 12:54:03,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:03,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602886916] [2024-11-13 12:54:03,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:03,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:04,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:04,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:54:04,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602886916] [2024-11-13 12:54:04,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602886916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:04,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:04,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 12:54:04,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670730500] [2024-11-13 12:54:04,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:04,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 12:54:04,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:54:04,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 12:54:04,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:54:04,171 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:54:04,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 88 transitions, 930 flow. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-11-13 12:54:04,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:04,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:54:04,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:04,840 INFO L124 PetriNetUnfolderBase]: 1397/2924 cut-off events. [2024-11-13 12:54:04,840 INFO L125 PetriNetUnfolderBase]: For 7284/7564 co-relation queries the response was YES. [2024-11-13 12:54:04,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10054 conditions, 2924 events. 1397/2924 cut-off events. For 7284/7564 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 22505 event pairs, 324 based on Foata normal form. 72/2711 useless extension candidates. Maximal degree in co-relation 10021. Up to 1060 conditions per place. [2024-11-13 12:54:04,853 INFO L140 encePairwiseOnDemand]: 35/46 looper letters, 34 selfloop transitions, 19 changer transitions 30/110 dead transitions. [2024-11-13 12:54:04,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 110 transitions, 1165 flow [2024-11-13 12:54:04,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 12:54:04,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 12:54:04,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 207 transitions. [2024-11-13 12:54:04,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-13 12:54:04,854 INFO L175 Difference]: Start difference. First operand has 119 places, 88 transitions, 930 flow. Second operand 9 states and 207 transitions. [2024-11-13 12:54:04,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 110 transitions, 1165 flow [2024-11-13 12:54:04,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 110 transitions, 1100 flow, removed 9 selfloop flow, removed 9 redundant places. [2024-11-13 12:54:04,869 INFO L231 Difference]: Finished difference. Result has 119 places, 70 transitions, 651 flow [2024-11-13 12:54:04,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=871, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=651, PETRI_PLACES=119, PETRI_TRANSITIONS=70} [2024-11-13 12:54:04,869 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 68 predicate places. [2024-11-13 12:54:04,869 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 70 transitions, 651 flow [2024-11-13 12:54:04,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 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) [2024-11-13 12:54:04,869 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:04,870 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:04,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-13 12:54:04,870 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:04,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:04,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1144964386, now seen corresponding path program 12 times [2024-11-13 12:54:04,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:54:04,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428615925] [2024-11-13 12:54:04,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:04,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:54:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:54:04,946 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:54:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:54:05,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 12:54:05,100 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 12:54:05,101 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-13 12:54:05,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-13 12:54:05,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-13 12:54:05,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-13 12:54:05,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-13 12:54:05,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-11-13 12:54:05,104 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-11-13 12:54:05,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-13 12:54:05,105 INFO L407 BasicCegarLoop]: Path program histogram: [12, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:05,210 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 12:54:05,210 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 12:54:05,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 12:54:05 BasicIcfg [2024-11-13 12:54:05,215 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 12:54:05,216 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 12:54:05,216 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 12:54:05,216 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 12:54:05,217 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:53:02" (3/4) ... [2024-11-13 12:54:05,219 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 12:54:05,219 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 12:54:05,220 INFO L158 Benchmark]: Toolchain (without parser) took 64404.49ms. Allocated memory was 117.4MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 91.1MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2024-11-13 12:54:05,222 INFO L158 Benchmark]: CDTParser took 0.93ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 75.0MB in the end (delta: 195.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:54:05,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 695.05ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 65.4MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 12:54:05,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.97ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 62.8MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:54:05,224 INFO L158 Benchmark]: Boogie Preprocessor took 93.10ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 58.6MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:54:05,224 INFO L158 Benchmark]: RCFGBuilder took 1110.88ms. Allocated memory is still 117.4MB. Free memory was 58.6MB in the beginning and 40.8MB in the end (delta: 17.8MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2024-11-13 12:54:05,225 INFO L158 Benchmark]: TraceAbstraction took 62418.40ms. Allocated memory was 117.4MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 40.6MB in the beginning and 1.6GB in the end (delta: -1.6GB). Peak memory consumption was 805.3MB. Max. memory is 16.1GB. [2024-11-13 12:54:05,226 INFO L158 Benchmark]: Witness Printer took 3.92ms. Allocated memory is still 1.7GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 126.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:54:05,227 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 75.0MB in the end (delta: 195.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 695.05ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 65.4MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.97ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 62.8MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.10ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 58.6MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1110.88ms. Allocated memory is still 117.4MB. Free memory was 58.6MB in the beginning and 40.8MB in the end (delta: 17.8MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * TraceAbstraction took 62418.40ms. Allocated memory was 117.4MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 40.6MB in the beginning and 1.6GB in the end (delta: -1.6GB). Peak memory consumption was 805.3MB. Max. memory is 16.1GB. * Witness Printer took 3.92ms. Allocated memory is still 1.7GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 126.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L715] 0 _Bool main$tmp_guard0; [L716] 0 _Bool main$tmp_guard1; [L718] 0 int x = 0; [L719] 0 _Bool x$flush_delayed; [L720] 0 int x$mem_tmp; [L721] 0 _Bool x$r_buff0_thd0; [L722] 0 _Bool x$r_buff0_thd1; [L723] 0 _Bool x$r_buff0_thd2; [L724] 0 _Bool x$r_buff0_thd3; [L725] 0 _Bool x$r_buff1_thd0; [L726] 0 _Bool x$r_buff1_thd1; [L727] 0 _Bool x$r_buff1_thd2; [L728] 0 _Bool x$r_buff1_thd3; [L729] 0 _Bool x$read_delayed; [L730] 0 int *x$read_delayed_var; [L731] 0 int x$w_buff0; [L732] 0 _Bool x$w_buff0_used; [L733] 0 int x$w_buff1; [L734] 0 _Bool x$w_buff1_used; [L736] 0 int y = 0; [L737] 0 _Bool weak$$choice0; [L738] 0 _Bool weak$$choice2; [L849] 0 pthread_t t2537; [L850] FCALL, FORK 0 pthread_create(&t2537, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2537=-2, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L851] 0 pthread_t t2538; [L852] FCALL, FORK 0 pthread_create(&t2538, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2537=-2, t2538=-1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L853] 0 pthread_t t2539; [L854] FCALL, FORK 0 pthread_create(&t2539, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2537=-2, t2538=-1, t2539=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L812] 3 x$w_buff1 = x$w_buff0 [L813] 3 x$w_buff0 = 2 [L814] 3 x$w_buff1_used = x$w_buff0_used [L815] 3 x$w_buff0_used = (_Bool)1 [L816] CALL 3 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 3 !(!expression) [L816] RET 3 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L817] 3 x$r_buff1_thd0 = x$r_buff0_thd0 [L818] 3 x$r_buff1_thd1 = x$r_buff0_thd1 [L819] 3 x$r_buff1_thd2 = x$r_buff0_thd2 [L820] 3 x$r_buff1_thd3 = x$r_buff0_thd3 [L821] 3 x$r_buff0_thd3 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L824] 3 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L742] 1 y = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L747] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L748] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L749] 1 x$flush_delayed = weak$$choice2 [L750] 1 x$mem_tmp = x [L751] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L752] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L753] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L754] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L755] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L756] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L757] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] 1 __unbuffered_p0_EAX = x [L759] 1 x = x$flush_delayed ? x$mem_tmp : x [L760] 1 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L772] 2 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L775] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L776] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L777] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L778] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L779] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L782] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L783] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L784] 2 x$flush_delayed = weak$$choice2 [L785] 2 x$mem_tmp = x [L786] 2 x = !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L787] 2 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L788] 2 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L789] 2 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L790] 2 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L791] 2 x$r_buff0_thd2 = weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L792] 2 x$r_buff1_thd2 = weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L793] 2 __unbuffered_p1_EAX = x [L794] 2 x = x$flush_delayed ? x$mem_tmp : x [L795] 2 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L798] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L799] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L800] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L801] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L802] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L827] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L828] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L829] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L830] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L831] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L834] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L765] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L805] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L856] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2537=-2, t2538=-1, t2539=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L858] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L858] RET 0 assume_abort_if_not(main$tmp_guard0) [L860] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L861] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L862] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L863] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L864] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2537=-2, t2538=-1, t2539=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L867] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L868] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L869] 0 x$flush_delayed = weak$$choice2 [L870] 0 x$mem_tmp = x [L871] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L872] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L873] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L874] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L875] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L877] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L878] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1) [L879] 0 x = x$flush_delayed ? x$mem_tmp : x [L880] 0 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2537=-2, t2538=-1, t2539=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L882] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L18] 0 __assert_fail ("0", "safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 847]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 850]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 852]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 72 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 62.1s, OverallIterations: 28, TraceHistogramMax: 1, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 35.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1546 SdHoareTripleChecker+Valid, 10.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1515 mSDsluCounter, 367 SdHoareTripleChecker+Invalid, 9.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 310 mSDsCounter, 499 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5829 IncrementalHoareTripleChecker+Invalid, 6328 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 499 mSolverCounterUnsat, 57 mSDtfsCounter, 5829 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 298 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2253occurred in iteration=14, InterpolantAutomatonStates: 252, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 25.1s InterpolantComputationTime, 725 NumberOfCodeBlocks, 725 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 666 ConstructedInterpolants, 0 QuantifiedInterpolants, 7522 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 12:54:05,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd --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 8e0bd33ffca0122f84e298c52bb9fdae01e72661c94f68aaa49ed0f187d88b87 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:54:08,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:54:08,135 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-13 12:54:08,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:54:08,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:54:08,185 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:54:08,186 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:54:08,186 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:54:08,187 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:54:08,187 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:54:08,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:54:08,188 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:54:08,189 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:54:08,189 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:54:08,189 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:54:08,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:54:08,190 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:54:08,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:54:08,190 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:54:08,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:54:08,191 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 12:54:08,191 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 12:54:08,191 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 12:54:08,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:54:08,192 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 12:54:08,192 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 12:54:08,192 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:54:08,192 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 12:54:08,192 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 12:54:08,192 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:54:08,192 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:54:08,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:54:08,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:54:08,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:54:08,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:54:08,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:54:08,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:54:08,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:54:08,193 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 12:54:08,193 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 12:54:08,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:54:08,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:54:08,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:54:08,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:54:08,194 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_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd 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 -> 8e0bd33ffca0122f84e298c52bb9fdae01e72661c94f68aaa49ed0f187d88b87 [2024-11-13 12:54:08,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:54:08,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:54:08,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:54:08,521 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:54:08,521 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:54:08,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-wmm/safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i Unable to find full path for "g++" [2024-11-13 12:54:10,681 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:54:11,116 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:54:11,117 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/sv-benchmarks/c/pthread-wmm/safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-11-13 12:54:11,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/data/3bc414ebc/ac1090918d834410b3e4f83db2a10c82/FLAG922ffed9a [2024-11-13 12:54:11,175 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/data/3bc414ebc/ac1090918d834410b3e4f83db2a10c82 [2024-11-13 12:54:11,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:54:11,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:54:11,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:54:11,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:54:11,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:54:11,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:54:11" (1/1) ... [2024-11-13 12:54:11,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e6a6b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:54:11, skipping insertion in model container [2024-11-13 12:54:11,193 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:54:11" (1/1) ... [2024-11-13 12:54:11,249 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:54:11,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:54:11,913 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:54:12,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:54:12,070 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:54:12,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:54:12 WrapperNode [2024-11-13 12:54:12,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:54:12,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:54:12,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:54:12,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:54:12,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:54:12" (1/1) ... [2024-11-13 12:54:12,098 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:54:12" (1/1) ... [2024-11-13 12:54:12,125 INFO L138 Inliner]: procedures = 176, calls = 47, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 138 [2024-11-13 12:54:12,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:54:12,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:54:12,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:54:12,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:54:12,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:54:12" (1/1) ... [2024-11-13 12:54:12,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:54:12" (1/1) ... [2024-11-13 12:54:12,142 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:54:12" (1/1) ... [2024-11-13 12:54:12,173 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]. [2024-11-13 12:54:12,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:54:12" (1/1) ... [2024-11-13 12:54:12,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:54:12" (1/1) ... [2024-11-13 12:54:12,192 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:54:12" (1/1) ... [2024-11-13 12:54:12,194 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:54:12" (1/1) ... [2024-11-13 12:54:12,196 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:54:12" (1/1) ... [2024-11-13 12:54:12,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:54:12" (1/1) ... [2024-11-13 12:54:12,202 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:54:12,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:54:12,203 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:54:12,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:54:12,204 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:54:12" (1/1) ... [2024-11-13 12:54:12,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:54:12,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:12,247 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:54:12,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:54:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 12:54:12,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:54:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 12:54:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-13 12:54:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-13 12:54:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-13 12:54:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-13 12:54:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-13 12:54:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-13 12:54:12,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 12:54:12,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:54:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:54:12,286 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 12:54:12,498 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:54:12,501 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:54:13,065 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 12:54:13,065 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:54:13,429 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:54:13,429 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 12:54:13,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:54:13 BoogieIcfgContainer [2024-11-13 12:54:13,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:54:13,433 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:54:13,434 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:54:13,439 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:54:13,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:54:11" (1/3) ... [2024-11-13 12:54:13,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6963f4fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:54:13, skipping insertion in model container [2024-11-13 12:54:13,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:54:12" (2/3) ... [2024-11-13 12:54:13,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6963f4fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:54:13, skipping insertion in model container [2024-11-13 12:54:13,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:54:13" (3/3) ... [2024-11-13 12:54:13,446 INFO L112 eAbstractionObserver]: Analyzing ICFG safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-11-13 12:54:13,463 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:54:13,465 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i that has 4 procedures, 45 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-13 12:54:13,465 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 12:54:13,553 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 12:54:13,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 46 transitions, 104 flow [2024-11-13 12:54:13,641 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2024-11-13 12:54:13,644 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:54:13,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 43 events. 2/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 81 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-13 12:54:13,653 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 46 transitions, 104 flow [2024-11-13 12:54:13,658 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 43 transitions, 95 flow [2024-11-13 12:54:13,671 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:54:13,687 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;@6c967bc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:54:13,687 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-13 12:54:13,703 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 12:54:13,704 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-13 12:54:13,704 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:54:13,705 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:13,705 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:13,706 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:13,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:13,711 INFO L85 PathProgramCache]: Analyzing trace with hash 552096453, now seen corresponding path program 1 times [2024-11-13 12:54:13,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:13,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [544301094] [2024-11-13 12:54:13,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:13,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:13,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:13,726 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:13,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 12:54:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:13,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 12:54:13,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:13,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:13,946 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:13,947 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:13,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544301094] [2024-11-13 12:54:13,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544301094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:13,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:13,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 12:54:13,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729383623] [2024-11-13 12:54:13,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:13,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:54:13,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:13,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:54:13,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:54:13,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 46 [2024-11-13 12:54:13,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-13 12:54:13,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:13,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 46 [2024-11-13 12:54:14,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:14,866 INFO L124 PetriNetUnfolderBase]: 1186/2131 cut-off events. [2024-11-13 12:54:14,867 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-13 12:54:14,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3937 conditions, 2131 events. 1186/2131 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 14322 event pairs, 232 based on Foata normal form. 120/2232 useless extension candidates. Maximal degree in co-relation 3926. Up to 1360 conditions per place. [2024-11-13 12:54:14,898 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 33 selfloop transitions, 2 changer transitions 2/53 dead transitions. [2024-11-13 12:54:14,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 53 transitions, 189 flow [2024-11-13 12:54:14,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:54:14,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:54:14,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2024-11-13 12:54:14,915 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.717391304347826 [2024-11-13 12:54:14,917 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 95 flow. Second operand 3 states and 99 transitions. [2024-11-13 12:54:14,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 53 transitions, 189 flow [2024-11-13 12:54:14,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 53 transitions, 186 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 12:54:14,931 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 86 flow [2024-11-13 12:54:14,935 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2024-11-13 12:54:14,939 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2024-11-13 12:54:14,940 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 86 flow [2024-11-13 12:54:14,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-13 12:54:14,940 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:14,940 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:14,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 12:54:15,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:15,145 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:15,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:15,146 INFO L85 PathProgramCache]: Analyzing trace with hash 197062408, now seen corresponding path program 1 times [2024-11-13 12:54:15,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:15,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309882951] [2024-11-13 12:54:15,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:15,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:15,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:15,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:15,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 12:54:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:15,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:54:15,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:15,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:15,342 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:15,342 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:15,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309882951] [2024-11-13 12:54:15,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309882951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:15,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:15,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 12:54:15,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283934830] [2024-11-13 12:54:15,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:15,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:54:15,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:15,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:54:15,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:54:15,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 46 [2024-11-13 12:54:15,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-13 12:54:15,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:15,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 46 [2024-11-13 12:54:15,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:15,783 INFO L124 PetriNetUnfolderBase]: 1053/1845 cut-off events. [2024-11-13 12:54:15,783 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-11-13 12:54:15,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3577 conditions, 1845 events. 1053/1845 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 12521 event pairs, 1053 based on Foata normal form. 60/1859 useless extension candidates. Maximal degree in co-relation 3567. Up to 1570 conditions per place. [2024-11-13 12:54:15,796 INFO L140 encePairwiseOnDemand]: 44/46 looper letters, 20 selfloop transitions, 1 changer transitions 1/37 dead transitions. [2024-11-13 12:54:15,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 37 transitions, 128 flow [2024-11-13 12:54:15,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:54:15,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:54:15,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-11-13 12:54:15,798 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5579710144927537 [2024-11-13 12:54:15,798 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 86 flow. Second operand 3 states and 77 transitions. [2024-11-13 12:54:15,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 37 transitions, 128 flow [2024-11-13 12:54:15,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 124 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:54:15,800 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 80 flow [2024-11-13 12:54:15,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-11-13 12:54:15,803 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -5 predicate places. [2024-11-13 12:54:15,804 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 80 flow [2024-11-13 12:54:15,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-13 12:54:15,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:15,804 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:15,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 12:54:16,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:16,007 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:16,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:16,007 INFO L85 PathProgramCache]: Analyzing trace with hash 197062387, now seen corresponding path program 1 times [2024-11-13 12:54:16,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:16,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2136338609] [2024-11-13 12:54:16,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:16,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:16,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:16,012 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:16,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 12:54:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:16,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:54:16,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:16,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:16,188 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:16,188 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:16,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136338609] [2024-11-13 12:54:16,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136338609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:16,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:16,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:54:16,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575012886] [2024-11-13 12:54:16,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:16,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:54:16,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:16,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:54:16,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:54:16,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 46 [2024-11-13 12:54:16,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-11-13 12:54:16,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:16,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 46 [2024-11-13 12:54:16,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:16,931 INFO L124 PetriNetUnfolderBase]: 2009/3306 cut-off events. [2024-11-13 12:54:16,931 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:54:16,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6370 conditions, 3306 events. 2009/3306 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 20732 event pairs, 231 based on Foata normal form. 120/3409 useless extension candidates. Maximal degree in co-relation 6364. Up to 1861 conditions per place. [2024-11-13 12:54:16,951 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 46 selfloop transitions, 5 changer transitions 1/63 dead transitions. [2024-11-13 12:54:16,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 63 transitions, 242 flow [2024-11-13 12:54:16,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:54:16,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 12:54:16,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 114 transitions. [2024-11-13 12:54:16,956 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6195652173913043 [2024-11-13 12:54:16,957 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 80 flow. Second operand 4 states and 114 transitions. [2024-11-13 12:54:16,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 63 transitions, 242 flow [2024-11-13 12:54:16,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 63 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 12:54:16,959 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 113 flow [2024-11-13 12:54:16,960 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2024-11-13 12:54:16,962 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -2 predicate places. [2024-11-13 12:54:16,962 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 113 flow [2024-11-13 12:54:16,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-11-13 12:54:16,963 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:16,963 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:16,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 12:54:17,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:17,164 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:17,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:17,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1019353868, now seen corresponding path program 1 times [2024-11-13 12:54:17,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:17,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588020178] [2024-11-13 12:54:17,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:17,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:17,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:17,168 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:17,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 12:54:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:17,283 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 12:54:17,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:17,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:17,333 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:17,333 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:17,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588020178] [2024-11-13 12:54:17,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588020178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:17,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:17,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:54:17,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359669670] [2024-11-13 12:54:17,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:17,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:54:17,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:17,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:54:17,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:54:17,343 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 46 [2024-11-13 12:54:17,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 113 flow. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-13 12:54:17,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:17,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 46 [2024-11-13 12:54:17,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:17,799 INFO L124 PetriNetUnfolderBase]: 1209/2014 cut-off events. [2024-11-13 12:54:17,799 INFO L125 PetriNetUnfolderBase]: For 470/470 co-relation queries the response was YES. [2024-11-13 12:54:17,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4581 conditions, 2014 events. 1209/2014 cut-off events. For 470/470 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 11110 event pairs, 129 based on Foata normal form. 96/2093 useless extension candidates. Maximal degree in co-relation 4572. Up to 769 conditions per place. [2024-11-13 12:54:17,812 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 58 selfloop transitions, 8 changer transitions 1/78 dead transitions. [2024-11-13 12:54:17,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 78 transitions, 346 flow [2024-11-13 12:54:17,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:54:17,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:54:17,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 144 transitions. [2024-11-13 12:54:17,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6260869565217392 [2024-11-13 12:54:17,814 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 113 flow. Second operand 5 states and 144 transitions. [2024-11-13 12:54:17,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 78 transitions, 346 flow [2024-11-13 12:54:17,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 78 transitions, 336 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-13 12:54:17,818 INFO L231 Difference]: Finished difference. Result has 53 places, 42 transitions, 153 flow [2024-11-13 12:54:17,818 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=153, PETRI_PLACES=53, PETRI_TRANSITIONS=42} [2024-11-13 12:54:17,819 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 2 predicate places. [2024-11-13 12:54:17,819 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 42 transitions, 153 flow [2024-11-13 12:54:17,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-11-13 12:54:17,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:17,819 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:17,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 12:54:18,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:18,020 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:18,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:18,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1760586421, now seen corresponding path program 1 times [2024-11-13 12:54:18,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:18,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1920010450] [2024-11-13 12:54:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:18,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:18,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:18,024 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:18,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 12:54:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:18,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 12:54:18,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:18,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:18,233 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:18,233 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:18,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920010450] [2024-11-13 12:54:18,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920010450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:18,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:18,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:54:18,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272029381] [2024-11-13 12:54:18,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:18,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:54:18,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:18,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:54:18,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:54:18,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 46 [2024-11-13 12:54:18,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 42 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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) [2024-11-13 12:54:18,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:18,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 46 [2024-11-13 12:54:18,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:18,672 INFO L124 PetriNetUnfolderBase]: 683/1112 cut-off events. [2024-11-13 12:54:18,672 INFO L125 PetriNetUnfolderBase]: For 856/856 co-relation queries the response was YES. [2024-11-13 12:54:18,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2873 conditions, 1112 events. 683/1112 cut-off events. For 856/856 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5174 event pairs, 109 based on Foata normal form. 44/1139 useless extension candidates. Maximal degree in co-relation 2862. Up to 364 conditions per place. [2024-11-13 12:54:18,679 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 50 selfloop transitions, 11 changer transitions 1/73 dead transitions. [2024-11-13 12:54:18,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 73 transitions, 349 flow [2024-11-13 12:54:18,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:54:18,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 12:54:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 154 transitions. [2024-11-13 12:54:18,681 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5579710144927537 [2024-11-13 12:54:18,681 INFO L175 Difference]: Start difference. First operand has 53 places, 42 transitions, 153 flow. Second operand 6 states and 154 transitions. [2024-11-13 12:54:18,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 73 transitions, 349 flow [2024-11-13 12:54:18,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 73 transitions, 324 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-13 12:54:18,688 INFO L231 Difference]: Finished difference. Result has 56 places, 42 transitions, 167 flow [2024-11-13 12:54:18,689 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=167, PETRI_PLACES=56, PETRI_TRANSITIONS=42} [2024-11-13 12:54:18,689 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 5 predicate places. [2024-11-13 12:54:18,690 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 42 transitions, 167 flow [2024-11-13 12:54:18,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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) [2024-11-13 12:54:18,690 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:18,690 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:18,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 12:54:18,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:18,891 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:18,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:18,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1033267844, now seen corresponding path program 1 times [2024-11-13 12:54:18,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:18,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [385309372] [2024-11-13 12:54:18,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:18,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:18,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:18,895 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:18,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 12:54:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:19,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 12:54:19,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:19,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:19,427 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:19,427 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:19,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385309372] [2024-11-13 12:54:19,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385309372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:19,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:19,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 12:54:19,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703098286] [2024-11-13 12:54:19,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:19,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:54:19,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:19,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:54:19,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:54:19,444 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-13 12:54:19,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 42 transitions, 167 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) [2024-11-13 12:54:19,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:19,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-13 12:54:19,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:19,921 INFO L124 PetriNetUnfolderBase]: 845/1552 cut-off events. [2024-11-13 12:54:19,922 INFO L125 PetriNetUnfolderBase]: For 683/687 co-relation queries the response was YES. [2024-11-13 12:54:19,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3599 conditions, 1552 events. 845/1552 cut-off events. For 683/687 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 8677 event pairs, 419 based on Foata normal form. 8/1515 useless extension candidates. Maximal degree in co-relation 3587. Up to 771 conditions per place. [2024-11-13 12:54:19,930 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 29 selfloop transitions, 2 changer transitions 17/66 dead transitions. [2024-11-13 12:54:19,930 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 66 transitions, 323 flow [2024-11-13 12:54:19,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:54:19,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 12:54:19,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 145 transitions. [2024-11-13 12:54:19,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5253623188405797 [2024-11-13 12:54:19,932 INFO L175 Difference]: Start difference. First operand has 56 places, 42 transitions, 167 flow. Second operand 6 states and 145 transitions. [2024-11-13 12:54:19,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 66 transitions, 323 flow [2024-11-13 12:54:19,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 66 transitions, 256 flow, removed 14 selfloop flow, removed 8 redundant places. [2024-11-13 12:54:19,941 INFO L231 Difference]: Finished difference. Result has 57 places, 42 transitions, 125 flow [2024-11-13 12:54:19,942 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=125, PETRI_PLACES=57, PETRI_TRANSITIONS=42} [2024-11-13 12:54:19,944 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 6 predicate places. [2024-11-13 12:54:19,944 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 42 transitions, 125 flow [2024-11-13 12:54:19,945 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) [2024-11-13 12:54:19,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:19,945 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:19,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 12:54:20,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:20,146 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:20,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:20,146 INFO L85 PathProgramCache]: Analyzing trace with hash -753964586, now seen corresponding path program 2 times [2024-11-13 12:54:20,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:20,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040289940] [2024-11-13 12:54:20,147 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 12:54:20,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:20,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:20,149 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:20,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 12:54:20,271 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 12:54:20,271 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:54:20,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 12:54:20,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:20,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:20,741 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:20,741 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:20,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040289940] [2024-11-13 12:54:20,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040289940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:20,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:20,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 12:54:20,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856933738] [2024-11-13 12:54:20,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:20,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 12:54:20,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:20,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 12:54:20,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-13 12:54:20,768 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:54:20,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 42 transitions, 125 flow. Second operand has 10 states, 10 states have (on average 19.0) internal successors, (190), 10 states have internal predecessors, (190), 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) [2024-11-13 12:54:20,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:20,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:54:20,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:21,457 INFO L124 PetriNetUnfolderBase]: 786/1507 cut-off events. [2024-11-13 12:54:21,457 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-11-13 12:54:21,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3041 conditions, 1507 events. 786/1507 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 8609 event pairs, 152 based on Foata normal form. 8/1457 useless extension candidates. Maximal degree in co-relation 3030. Up to 423 conditions per place. [2024-11-13 12:54:21,467 INFO L140 encePairwiseOnDemand]: 33/46 looper letters, 34 selfloop transitions, 8 changer transitions 36/97 dead transitions. [2024-11-13 12:54:21,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 97 transitions, 404 flow [2024-11-13 12:54:21,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 12:54:21,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-13 12:54:21,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 266 transitions. [2024-11-13 12:54:21,470 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525691699604743 [2024-11-13 12:54:21,470 INFO L175 Difference]: Start difference. First operand has 57 places, 42 transitions, 125 flow. Second operand 11 states and 266 transitions. [2024-11-13 12:54:21,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 97 transitions, 404 flow [2024-11-13 12:54:21,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 97 transitions, 382 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-13 12:54:21,473 INFO L231 Difference]: Finished difference. Result has 66 places, 47 transitions, 177 flow [2024-11-13 12:54:21,473 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=177, PETRI_PLACES=66, PETRI_TRANSITIONS=47} [2024-11-13 12:54:21,474 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 15 predicate places. [2024-11-13 12:54:21,474 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 47 transitions, 177 flow [2024-11-13 12:54:21,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.0) internal successors, (190), 10 states have internal predecessors, (190), 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) [2024-11-13 12:54:21,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:21,475 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:21,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 12:54:21,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:21,676 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:21,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:21,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1845011280, now seen corresponding path program 3 times [2024-11-13 12:54:21,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:21,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1971134673] [2024-11-13 12:54:21,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 12:54:21,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:21,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:21,680 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:21,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 12:54:21,805 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-13 12:54:21,805 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:54:21,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 12:54:21,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:22,534 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:22,534 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:22,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971134673] [2024-11-13 12:54:22,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971134673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:22,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:22,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 12:54:22,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992952641] [2024-11-13 12:54:22,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:22,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 12:54:22,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:22,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 12:54:22,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-13 12:54:22,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-11-13 12:54:22,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 47 transitions, 177 flow. Second operand has 13 states, 13 states have (on average 15.76923076923077) internal successors, (205), 13 states have internal predecessors, (205), 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) [2024-11-13 12:54:22,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:22,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-11-13 12:54:22,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:23,458 INFO L124 PetriNetUnfolderBase]: 1288/2156 cut-off events. [2024-11-13 12:54:23,458 INFO L125 PetriNetUnfolderBase]: For 1212/1302 co-relation queries the response was YES. [2024-11-13 12:54:23,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5718 conditions, 2156 events. 1288/2156 cut-off events. For 1212/1302 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 10952 event pairs, 374 based on Foata normal form. 8/2140 useless extension candidates. Maximal degree in co-relation 5703. Up to 1199 conditions per place. [2024-11-13 12:54:23,472 INFO L140 encePairwiseOnDemand]: 31/46 looper letters, 46 selfloop transitions, 10 changer transitions 50/116 dead transitions. [2024-11-13 12:54:23,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 116 transitions, 669 flow [2024-11-13 12:54:23,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 12:54:23,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-13 12:54:23,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 241 transitions. [2024-11-13 12:54:23,474 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4762845849802372 [2024-11-13 12:54:23,475 INFO L175 Difference]: Start difference. First operand has 66 places, 47 transitions, 177 flow. Second operand 11 states and 241 transitions. [2024-11-13 12:54:23,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 116 transitions, 669 flow [2024-11-13 12:54:23,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 116 transitions, 584 flow, removed 30 selfloop flow, removed 9 redundant places. [2024-11-13 12:54:23,482 INFO L231 Difference]: Finished difference. Result has 69 places, 56 transitions, 246 flow [2024-11-13 12:54:23,483 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=246, PETRI_PLACES=69, PETRI_TRANSITIONS=56} [2024-11-13 12:54:23,483 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 18 predicate places. [2024-11-13 12:54:23,483 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 56 transitions, 246 flow [2024-11-13 12:54:23,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 15.76923076923077) internal successors, (205), 13 states have internal predecessors, (205), 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) [2024-11-13 12:54:23,484 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:23,484 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:23,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 12:54:23,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:23,684 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:23,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:23,685 INFO L85 PathProgramCache]: Analyzing trace with hash 669526288, now seen corresponding path program 4 times [2024-11-13 12:54:23,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:23,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1820659501] [2024-11-13 12:54:23,685 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 12:54:23,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:23,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:23,687 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:23,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 12:54:23,811 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 12:54:23,811 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:54:23,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 12:54:23,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:26,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:26,627 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:26,628 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:26,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820659501] [2024-11-13 12:54:26,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820659501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:26,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:26,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 12:54:26,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956410708] [2024-11-13 12:54:26,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:26,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 12:54:26,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:26,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 12:54:26,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-13 12:54:26,661 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:54:26,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 56 transitions, 246 flow. Second operand has 10 states, 10 states have (on average 19.0) internal successors, (190), 10 states have internal predecessors, (190), 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) [2024-11-13 12:54:26,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:26,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:54:26,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:27,833 INFO L124 PetriNetUnfolderBase]: 953/1835 cut-off events. [2024-11-13 12:54:27,833 INFO L125 PetriNetUnfolderBase]: For 1359/1581 co-relation queries the response was YES. [2024-11-13 12:54:27,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4947 conditions, 1835 events. 953/1835 cut-off events. For 1359/1581 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 10854 event pairs, 234 based on Foata normal form. 24/1790 useless extension candidates. Maximal degree in co-relation 4930. Up to 616 conditions per place. [2024-11-13 12:54:27,851 INFO L140 encePairwiseOnDemand]: 33/46 looper letters, 53 selfloop transitions, 31 changer transitions 27/130 dead transitions. [2024-11-13 12:54:27,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 130 transitions, 761 flow [2024-11-13 12:54:27,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 12:54:27,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 12:54:27,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 318 transitions. [2024-11-13 12:54:27,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5317725752508361 [2024-11-13 12:54:27,854 INFO L175 Difference]: Start difference. First operand has 69 places, 56 transitions, 246 flow. Second operand 13 states and 318 transitions. [2024-11-13 12:54:27,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 130 transitions, 761 flow [2024-11-13 12:54:27,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 130 transitions, 733 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-11-13 12:54:27,862 INFO L231 Difference]: Finished difference. Result has 79 places, 75 transitions, 479 flow [2024-11-13 12:54:27,862 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=479, PETRI_PLACES=79, PETRI_TRANSITIONS=75} [2024-11-13 12:54:27,862 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 28 predicate places. [2024-11-13 12:54:27,862 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 75 transitions, 479 flow [2024-11-13 12:54:27,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.0) internal successors, (190), 10 states have internal predecessors, (190), 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) [2024-11-13 12:54:27,865 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:27,865 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:27,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 12:54:28,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:28,066 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:28,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:28,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1307703794, now seen corresponding path program 5 times [2024-11-13 12:54:28,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:28,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1594564945] [2024-11-13 12:54:28,066 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-13 12:54:28,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:28,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:28,068 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:28,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 12:54:28,185 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 12:54:28,186 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:54:28,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 12:54:28,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:28,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:28,788 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:28,788 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:28,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594564945] [2024-11-13 12:54:28,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594564945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:28,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:28,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 12:54:28,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030148418] [2024-11-13 12:54:28,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:28,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 12:54:28,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:28,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 12:54:28,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-13 12:54:28,902 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-11-13 12:54:28,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 75 transitions, 479 flow. Second operand has 13 states, 13 states have (on average 15.76923076923077) internal successors, (205), 13 states have internal predecessors, (205), 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) [2024-11-13 12:54:28,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:28,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-11-13 12:54:28,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:29,834 INFO L124 PetriNetUnfolderBase]: 1852/3056 cut-off events. [2024-11-13 12:54:29,834 INFO L125 PetriNetUnfolderBase]: For 6168/6814 co-relation queries the response was YES. [2024-11-13 12:54:29,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10052 conditions, 3056 events. 1852/3056 cut-off events. For 6168/6814 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 16690 event pairs, 562 based on Foata normal form. 24/3062 useless extension candidates. Maximal degree in co-relation 10029. Up to 1890 conditions per place. [2024-11-13 12:54:29,864 INFO L140 encePairwiseOnDemand]: 34/46 looper letters, 67 selfloop transitions, 10 changer transitions 61/148 dead transitions. [2024-11-13 12:54:29,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 148 transitions, 1240 flow [2024-11-13 12:54:29,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 12:54:29,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-13 12:54:29,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 233 transitions. [2024-11-13 12:54:29,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46047430830039526 [2024-11-13 12:54:29,866 INFO L175 Difference]: Start difference. First operand has 79 places, 75 transitions, 479 flow. Second operand 11 states and 233 transitions. [2024-11-13 12:54:29,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 148 transitions, 1240 flow [2024-11-13 12:54:29,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 148 transitions, 1133 flow, removed 47 selfloop flow, removed 5 redundant places. [2024-11-13 12:54:29,886 INFO L231 Difference]: Finished difference. Result has 88 places, 78 transitions, 524 flow [2024-11-13 12:54:29,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=524, PETRI_PLACES=88, PETRI_TRANSITIONS=78} [2024-11-13 12:54:29,887 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 37 predicate places. [2024-11-13 12:54:29,888 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 78 transitions, 524 flow [2024-11-13 12:54:29,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 15.76923076923077) internal successors, (205), 13 states have internal predecessors, (205), 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) [2024-11-13 12:54:29,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:29,888 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:29,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 12:54:30,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:30,093 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:30,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:30,093 INFO L85 PathProgramCache]: Analyzing trace with hash -212475344, now seen corresponding path program 6 times [2024-11-13 12:54:30,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:30,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2131111066] [2024-11-13 12:54:30,095 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-13 12:54:30,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:30,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:30,097 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:30,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 12:54:30,216 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-13 12:54:30,217 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:54:30,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 12:54:30,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:30,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:30,710 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:30,710 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:30,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131111066] [2024-11-13 12:54:30,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131111066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:30,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:30,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 12:54:30,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311042303] [2024-11-13 12:54:30,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:30,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 12:54:30,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:30,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 12:54:30,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-13 12:54:30,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-11-13 12:54:30,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 78 transitions, 524 flow. Second operand has 13 states, 13 states have (on average 15.76923076923077) internal successors, (205), 13 states have internal predecessors, (205), 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) [2024-11-13 12:54:30,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:30,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-11-13 12:54:30,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:31,425 INFO L124 PetriNetUnfolderBase]: 1359/2281 cut-off events. [2024-11-13 12:54:31,425 INFO L125 PetriNetUnfolderBase]: For 5740/6202 co-relation queries the response was YES. [2024-11-13 12:54:31,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7780 conditions, 2281 events. 1359/2281 cut-off events. For 5740/6202 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 11747 event pairs, 456 based on Foata normal form. 36/2305 useless extension candidates. Maximal degree in co-relation 7753. Up to 1880 conditions per place. [2024-11-13 12:54:31,437 INFO L140 encePairwiseOnDemand]: 36/46 looper letters, 64 selfloop transitions, 9 changer transitions 38/121 dead transitions. [2024-11-13 12:54:31,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 121 transitions, 948 flow [2024-11-13 12:54:31,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 12:54:31,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-13 12:54:31,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 225 transitions. [2024-11-13 12:54:31,439 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44466403162055335 [2024-11-13 12:54:31,440 INFO L175 Difference]: Start difference. First operand has 88 places, 78 transitions, 524 flow. Second operand 11 states and 225 transitions. [2024-11-13 12:54:31,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 121 transitions, 948 flow [2024-11-13 12:54:31,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 121 transitions, 913 flow, removed 11 selfloop flow, removed 8 redundant places. [2024-11-13 12:54:31,451 INFO L231 Difference]: Finished difference. Result has 90 places, 76 transitions, 515 flow [2024-11-13 12:54:31,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=515, PETRI_PLACES=90, PETRI_TRANSITIONS=76} [2024-11-13 12:54:31,452 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 39 predicate places. [2024-11-13 12:54:31,453 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 76 transitions, 515 flow [2024-11-13 12:54:31,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 15.76923076923077) internal successors, (205), 13 states have internal predecessors, (205), 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) [2024-11-13 12:54:31,453 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:31,453 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:31,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 12:54:31,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:31,654 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:31,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:31,654 INFO L85 PathProgramCache]: Analyzing trace with hash -2061601146, now seen corresponding path program 7 times [2024-11-13 12:54:31,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:31,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [990557170] [2024-11-13 12:54:31,654 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-13 12:54:31,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:31,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:31,656 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:31,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 12:54:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:31,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 12:54:31,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:32,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:32,075 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:32,075 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:32,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990557170] [2024-11-13 12:54:32,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990557170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:32,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:32,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 12:54:32,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586704933] [2024-11-13 12:54:32,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:32,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 12:54:32,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:32,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 12:54:32,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-13 12:54:32,101 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:54:32,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 76 transitions, 515 flow. Second operand has 10 states, 10 states have (on average 19.0) internal successors, (190), 10 states have internal predecessors, (190), 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) [2024-11-13 12:54:32,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:32,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:54:32,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:32,760 INFO L124 PetriNetUnfolderBase]: 1269/2392 cut-off events. [2024-11-13 12:54:32,760 INFO L125 PetriNetUnfolderBase]: For 5497/5899 co-relation queries the response was YES. [2024-11-13 12:54:32,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7430 conditions, 2392 events. 1269/2392 cut-off events. For 5497/5899 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 15136 event pairs, 408 based on Foata normal form. 48/2339 useless extension candidates. Maximal degree in co-relation 7402. Up to 737 conditions per place. [2024-11-13 12:54:32,779 INFO L140 encePairwiseOnDemand]: 36/46 looper letters, 56 selfloop transitions, 10 changer transitions 45/130 dead transitions. [2024-11-13 12:54:32,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 130 transitions, 1030 flow [2024-11-13 12:54:32,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 12:54:32,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 12:54:32,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 237 transitions. [2024-11-13 12:54:32,781 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5152173913043478 [2024-11-13 12:54:32,781 INFO L175 Difference]: Start difference. First operand has 90 places, 76 transitions, 515 flow. Second operand 10 states and 237 transitions. [2024-11-13 12:54:32,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 130 transitions, 1030 flow [2024-11-13 12:54:32,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 130 transitions, 982 flow, removed 15 selfloop flow, removed 10 redundant places. [2024-11-13 12:54:32,795 INFO L231 Difference]: Finished difference. Result has 89 places, 63 transitions, 395 flow [2024-11-13 12:54:32,795 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=395, PETRI_PLACES=89, PETRI_TRANSITIONS=63} [2024-11-13 12:54:32,795 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 38 predicate places. [2024-11-13 12:54:32,796 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 63 transitions, 395 flow [2024-11-13 12:54:32,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.0) internal successors, (190), 10 states have internal predecessors, (190), 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) [2024-11-13 12:54:32,796 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:32,796 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:32,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 12:54:32,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:32,997 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:32,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:32,997 INFO L85 PathProgramCache]: Analyzing trace with hash -39990754, now seen corresponding path program 8 times [2024-11-13 12:54:32,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:32,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273109911] [2024-11-13 12:54:32,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 12:54:32,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:32,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:32,999 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:33,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 12:54:33,097 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 12:54:33,097 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:54:33,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 12:54:33,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:33,617 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:33,618 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:33,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273109911] [2024-11-13 12:54:33,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273109911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:33,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:33,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 12:54:33,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638684142] [2024-11-13 12:54:33,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:33,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 12:54:33,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:33,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 12:54:33,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-13 12:54:33,652 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-11-13 12:54:33,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 63 transitions, 395 flow. Second operand has 12 states, 12 states have (on average 15.916666666666666) internal successors, (191), 12 states have internal predecessors, (191), 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) [2024-11-13 12:54:33,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:33,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-11-13 12:54:33,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:34,328 INFO L124 PetriNetUnfolderBase]: 2256/3706 cut-off events. [2024-11-13 12:54:34,328 INFO L125 PetriNetUnfolderBase]: For 8932/9002 co-relation queries the response was YES. [2024-11-13 12:54:34,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11707 conditions, 3706 events. 2256/3706 cut-off events. For 8932/9002 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 21442 event pairs, 628 based on Foata normal form. 20/3723 useless extension candidates. Maximal degree in co-relation 11686. Up to 1889 conditions per place. [2024-11-13 12:54:34,343 INFO L140 encePairwiseOnDemand]: 34/46 looper letters, 57 selfloop transitions, 14 changer transitions 62/143 dead transitions. [2024-11-13 12:54:34,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 143 transitions, 1271 flow [2024-11-13 12:54:34,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 12:54:34,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-13 12:54:34,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 241 transitions. [2024-11-13 12:54:34,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4762845849802372 [2024-11-13 12:54:34,345 INFO L175 Difference]: Start difference. First operand has 89 places, 63 transitions, 395 flow. Second operand 11 states and 241 transitions. [2024-11-13 12:54:34,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 143 transitions, 1271 flow [2024-11-13 12:54:34,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 143 transitions, 1135 flow, removed 49 selfloop flow, removed 12 redundant places. [2024-11-13 12:54:34,358 INFO L231 Difference]: Finished difference. Result has 85 places, 69 transitions, 485 flow [2024-11-13 12:54:34,358 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=339, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=485, PETRI_PLACES=85, PETRI_TRANSITIONS=69} [2024-11-13 12:54:34,359 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 34 predicate places. [2024-11-13 12:54:34,359 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 69 transitions, 485 flow [2024-11-13 12:54:34,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.916666666666666) internal successors, (191), 12 states have internal predecessors, (191), 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) [2024-11-13 12:54:34,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:34,359 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:34,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 12:54:34,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:34,560 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:34,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:34,561 INFO L85 PathProgramCache]: Analyzing trace with hash 105353556, now seen corresponding path program 9 times [2024-11-13 12:54:34,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:34,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [7643326] [2024-11-13 12:54:34,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 12:54:34,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:34,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:34,564 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:34,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 12:54:34,681 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-13 12:54:34,681 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:54:34,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 12:54:34,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:35,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:35,232 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:35,232 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:35,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7643326] [2024-11-13 12:54:35,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7643326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:35,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:35,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 12:54:35,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859929262] [2024-11-13 12:54:35,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:35,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 12:54:35,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:35,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 12:54:35,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-13 12:54:35,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-11-13 12:54:35,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 69 transitions, 485 flow. Second operand has 13 states, 13 states have (on average 15.76923076923077) internal successors, (205), 13 states have internal predecessors, (205), 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) [2024-11-13 12:54:35,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:35,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-11-13 12:54:35,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:35,852 INFO L124 PetriNetUnfolderBase]: 1384/2334 cut-off events. [2024-11-13 12:54:35,852 INFO L125 PetriNetUnfolderBase]: For 5130/5188 co-relation queries the response was YES. [2024-11-13 12:54:35,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7477 conditions, 2334 events. 1384/2334 cut-off events. For 5130/5188 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 12112 event pairs, 534 based on Foata normal form. 24/2357 useless extension candidates. Maximal degree in co-relation 7456. Up to 1947 conditions per place. [2024-11-13 12:54:35,864 INFO L140 encePairwiseOnDemand]: 32/46 looper letters, 62 selfloop transitions, 17 changer transitions 29/118 dead transitions. [2024-11-13 12:54:35,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 118 transitions, 990 flow [2024-11-13 12:54:35,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 12:54:35,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-13 12:54:35,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 229 transitions. [2024-11-13 12:54:35,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4525691699604743 [2024-11-13 12:54:35,866 INFO L175 Difference]: Start difference. First operand has 85 places, 69 transitions, 485 flow. Second operand 11 states and 229 transitions. [2024-11-13 12:54:35,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 118 transitions, 990 flow [2024-11-13 12:54:35,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 118 transitions, 908 flow, removed 30 selfloop flow, removed 8 redundant places. [2024-11-13 12:54:35,875 INFO L231 Difference]: Finished difference. Result has 88 places, 78 transitions, 621 flow [2024-11-13 12:54:35,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=621, PETRI_PLACES=88, PETRI_TRANSITIONS=78} [2024-11-13 12:54:35,876 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 37 predicate places. [2024-11-13 12:54:35,876 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 78 transitions, 621 flow [2024-11-13 12:54:35,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 15.76923076923077) internal successors, (205), 13 states have internal predecessors, (205), 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) [2024-11-13 12:54:35,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:35,877 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:35,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 12:54:36,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:36,077 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:36,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:36,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1377031842, now seen corresponding path program 10 times [2024-11-13 12:54:36,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:36,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [809589261] [2024-11-13 12:54:36,078 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 12:54:36,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:36,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:36,080 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:36,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 12:54:36,176 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 12:54:36,176 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:54:36,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 12:54:36,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:36,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:36,404 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:36,404 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:36,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809589261] [2024-11-13 12:54:36,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809589261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:36,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:36,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 12:54:36,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186695616] [2024-11-13 12:54:36,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:36,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 12:54:36,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:36,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 12:54:36,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:54:36,422 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 46 [2024-11-13 12:54:36,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 78 transitions, 621 flow. Second operand has 11 states, 11 states have (on average 18.818181818181817) internal successors, (207), 11 states have internal predecessors, (207), 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) [2024-11-13 12:54:36,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:36,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 46 [2024-11-13 12:54:36,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:36,967 INFO L124 PetriNetUnfolderBase]: 907/1708 cut-off events. [2024-11-13 12:54:36,967 INFO L125 PetriNetUnfolderBase]: For 3288/3309 co-relation queries the response was YES. [2024-11-13 12:54:36,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5189 conditions, 1708 events. 907/1708 cut-off events. For 3288/3309 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 9826 event pairs, 334 based on Foata normal form. 25/1682 useless extension candidates. Maximal degree in co-relation 5166. Up to 926 conditions per place. [2024-11-13 12:54:36,973 INFO L140 encePairwiseOnDemand]: 36/46 looper letters, 43 selfloop transitions, 3 changer transitions 50/121 dead transitions. [2024-11-13 12:54:36,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 121 transitions, 957 flow [2024-11-13 12:54:36,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 12:54:36,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-13 12:54:36,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 276 transitions. [2024-11-13 12:54:36,975 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-13 12:54:36,975 INFO L175 Difference]: Start difference. First operand has 88 places, 78 transitions, 621 flow. Second operand 12 states and 276 transitions. [2024-11-13 12:54:36,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 121 transitions, 957 flow [2024-11-13 12:54:36,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 121 transitions, 875 flow, removed 40 selfloop flow, removed 5 redundant places. [2024-11-13 12:54:36,985 INFO L231 Difference]: Finished difference. Result has 98 places, 69 transitions, 500 flow [2024-11-13 12:54:36,986 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=500, PETRI_PLACES=98, PETRI_TRANSITIONS=69} [2024-11-13 12:54:36,986 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 47 predicate places. [2024-11-13 12:54:36,986 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 69 transitions, 500 flow [2024-11-13 12:54:36,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 18.818181818181817) internal successors, (207), 11 states have internal predecessors, (207), 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) [2024-11-13 12:54:36,987 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:36,987 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:37,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-13 12:54:37,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:37,187 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:37,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:37,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1229480142, now seen corresponding path program 11 times [2024-11-13 12:54:37,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:37,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2115444659] [2024-11-13 12:54:37,189 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-13 12:54:37,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:37,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:37,190 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:37,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 12:54:37,291 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 12:54:37,291 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:54:37,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 12:54:37,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:37,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:37,736 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:37,736 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:37,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115444659] [2024-11-13 12:54:37,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115444659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:37,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:37,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 12:54:37,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063131671] [2024-11-13 12:54:37,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:37,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 12:54:37,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:37,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 12:54:37,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-13 12:54:37,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-11-13 12:54:37,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 69 transitions, 500 flow. Second operand has 12 states, 12 states have (on average 15.916666666666666) internal successors, (191), 12 states have internal predecessors, (191), 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) [2024-11-13 12:54:37,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:37,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-11-13 12:54:37,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:38,354 INFO L124 PetriNetUnfolderBase]: 1077/1773 cut-off events. [2024-11-13 12:54:38,354 INFO L125 PetriNetUnfolderBase]: For 3041/3045 co-relation queries the response was YES. [2024-11-13 12:54:38,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5630 conditions, 1773 events. 1077/1773 cut-off events. For 3041/3045 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 8503 event pairs, 384 based on Foata normal form. 12/1784 useless extension candidates. Maximal degree in co-relation 5601. Up to 1383 conditions per place. [2024-11-13 12:54:38,361 INFO L140 encePairwiseOnDemand]: 34/46 looper letters, 54 selfloop transitions, 16 changer transitions 37/117 dead transitions. [2024-11-13 12:54:38,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 117 transitions, 957 flow [2024-11-13 12:54:38,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 12:54:38,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-13 12:54:38,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 239 transitions. [2024-11-13 12:54:38,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4723320158102767 [2024-11-13 12:54:38,363 INFO L175 Difference]: Start difference. First operand has 98 places, 69 transitions, 500 flow. Second operand 11 states and 239 transitions. [2024-11-13 12:54:38,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 117 transitions, 957 flow [2024-11-13 12:54:38,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 117 transitions, 872 flow, removed 27 selfloop flow, removed 18 redundant places. [2024-11-13 12:54:38,371 INFO L231 Difference]: Finished difference. Result has 88 places, 69 transitions, 505 flow [2024-11-13 12:54:38,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=505, PETRI_PLACES=88, PETRI_TRANSITIONS=69} [2024-11-13 12:54:38,372 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 37 predicate places. [2024-11-13 12:54:38,372 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 69 transitions, 505 flow [2024-11-13 12:54:38,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.916666666666666) internal successors, (191), 12 states have internal predecessors, (191), 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) [2024-11-13 12:54:38,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:38,372 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:38,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 12:54:38,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:38,573 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:38,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:38,574 INFO L85 PathProgramCache]: Analyzing trace with hash 488510386, now seen corresponding path program 12 times [2024-11-13 12:54:38,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:38,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1620547329] [2024-11-13 12:54:38,574 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-13 12:54:38,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:38,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:38,576 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:38,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 12:54:38,677 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-13 12:54:38,677 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:54:38,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 12:54:38,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:39,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:39,135 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:39,136 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:39,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620547329] [2024-11-13 12:54:39,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620547329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:39,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:39,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 12:54:39,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121374589] [2024-11-13 12:54:39,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:39,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 12:54:39,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:39,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 12:54:39,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-13 12:54:39,169 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-11-13 12:54:39,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 69 transitions, 505 flow. Second operand has 12 states, 12 states have (on average 15.916666666666666) internal successors, (191), 12 states have internal predecessors, (191), 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) [2024-11-13 12:54:39,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:39,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-11-13 12:54:39,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:39,681 INFO L124 PetriNetUnfolderBase]: 1023/1695 cut-off events. [2024-11-13 12:54:39,681 INFO L125 PetriNetUnfolderBase]: For 2888/2892 co-relation queries the response was YES. [2024-11-13 12:54:39,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5528 conditions, 1695 events. 1023/1695 cut-off events. For 2888/2892 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 7981 event pairs, 166 based on Foata normal form. 8/1702 useless extension candidates. Maximal degree in co-relation 5505. Up to 901 conditions per place. [2024-11-13 12:54:39,687 INFO L140 encePairwiseOnDemand]: 35/46 looper letters, 60 selfloop transitions, 26 changer transitions 28/124 dead transitions. [2024-11-13 12:54:39,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 124 transitions, 1022 flow [2024-11-13 12:54:39,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 12:54:39,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-13 12:54:39,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 245 transitions. [2024-11-13 12:54:39,689 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4841897233201581 [2024-11-13 12:54:39,689 INFO L175 Difference]: Start difference. First operand has 88 places, 69 transitions, 505 flow. Second operand 11 states and 245 transitions. [2024-11-13 12:54:39,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 124 transitions, 1022 flow [2024-11-13 12:54:39,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 124 transitions, 950 flow, removed 17 selfloop flow, removed 10 redundant places. [2024-11-13 12:54:39,696 INFO L231 Difference]: Finished difference. Result has 88 places, 70 transitions, 559 flow [2024-11-13 12:54:39,696 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=445, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=559, PETRI_PLACES=88, PETRI_TRANSITIONS=70} [2024-11-13 12:54:39,696 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 37 predicate places. [2024-11-13 12:54:39,696 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 70 transitions, 559 flow [2024-11-13 12:54:39,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.916666666666666) internal successors, (191), 12 states have internal predecessors, (191), 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) [2024-11-13 12:54:39,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:39,697 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:39,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-13 12:54:39,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:39,900 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:39,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:39,900 INFO L85 PathProgramCache]: Analyzing trace with hash -631081868, now seen corresponding path program 13 times [2024-11-13 12:54:39,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:39,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [978949073] [2024-11-13 12:54:39,900 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-13 12:54:39,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:39,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:39,902 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:39,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-13 12:54:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:40,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 12:54:40,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:40,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:40,445 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:40,445 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:40,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978949073] [2024-11-13 12:54:40,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978949073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:40,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:40,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 12:54:40,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525958200] [2024-11-13 12:54:40,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:40,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 12:54:40,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:40,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 12:54:40,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-13 12:54:40,507 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-11-13 12:54:40,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 70 transitions, 559 flow. Second operand has 12 states, 12 states have (on average 15.916666666666666) internal successors, (191), 12 states have internal predecessors, (191), 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) [2024-11-13 12:54:40,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:40,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-11-13 12:54:40,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:41,072 INFO L124 PetriNetUnfolderBase]: 801/1349 cut-off events. [2024-11-13 12:54:41,072 INFO L125 PetriNetUnfolderBase]: For 2704/2708 co-relation queries the response was YES. [2024-11-13 12:54:41,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4556 conditions, 1349 events. 801/1349 cut-off events. For 2704/2708 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 5962 event pairs, 118 based on Foata normal form. 8/1356 useless extension candidates. Maximal degree in co-relation 4534. Up to 732 conditions per place. [2024-11-13 12:54:41,079 INFO L140 encePairwiseOnDemand]: 35/46 looper letters, 55 selfloop transitions, 26 changer transitions 22/113 dead transitions. [2024-11-13 12:54:41,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 113 transitions, 958 flow [2024-11-13 12:54:41,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 12:54:41,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-13 12:54:41,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 254 transitions. [2024-11-13 12:54:41,080 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4601449275362319 [2024-11-13 12:54:41,080 INFO L175 Difference]: Start difference. First operand has 88 places, 70 transitions, 559 flow. Second operand 12 states and 254 transitions. [2024-11-13 12:54:41,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 113 transitions, 958 flow [2024-11-13 12:54:41,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 113 transitions, 880 flow, removed 15 selfloop flow, removed 12 redundant places. [2024-11-13 12:54:41,089 INFO L231 Difference]: Finished difference. Result has 88 places, 66 transitions, 502 flow [2024-11-13 12:54:41,089 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=502, PETRI_PLACES=88, PETRI_TRANSITIONS=66} [2024-11-13 12:54:41,090 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 37 predicate places. [2024-11-13 12:54:41,090 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 66 transitions, 502 flow [2024-11-13 12:54:41,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.916666666666666) internal successors, (191), 12 states have internal predecessors, (191), 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) [2024-11-13 12:54:41,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:41,091 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:41,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-13 12:54:41,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:41,291 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:41,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:41,291 INFO L85 PathProgramCache]: Analyzing trace with hash 881385904, now seen corresponding path program 14 times [2024-11-13 12:54:41,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:41,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2017036097] [2024-11-13 12:54:41,292 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 12:54:41,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:41,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:41,294 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:41,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-13 12:54:41,389 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 12:54:41,389 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:54:41,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 12:54:41,397 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:41,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:54:41,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:54:41,783 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:41,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017036097] [2024-11-13 12:54:41,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017036097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:54:41,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:54:41,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-13 12:54:41,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959793997] [2024-11-13 12:54:41,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:54:41,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 12:54:41,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:54:41,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 12:54:41,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-13 12:54:41,825 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-11-13 12:54:41,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 66 transitions, 502 flow. Second operand has 12 states, 12 states have (on average 15.916666666666666) internal successors, (191), 12 states have internal predecessors, (191), 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) [2024-11-13 12:54:41,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:54:41,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-11-13 12:54:41,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:54:42,367 INFO L124 PetriNetUnfolderBase]: 832/1390 cut-off events. [2024-11-13 12:54:42,368 INFO L125 PetriNetUnfolderBase]: For 2432/2432 co-relation queries the response was YES. [2024-11-13 12:54:42,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4674 conditions, 1390 events. 832/1390 cut-off events. For 2432/2432 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6194 event pairs, 286 based on Foata normal form. 8/1397 useless extension candidates. Maximal degree in co-relation 4653. Up to 929 conditions per place. [2024-11-13 12:54:42,375 INFO L140 encePairwiseOnDemand]: 35/46 looper letters, 59 selfloop transitions, 14 changer transitions 31/114 dead transitions. [2024-11-13 12:54:42,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 114 transitions, 918 flow [2024-11-13 12:54:42,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 12:54:42,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-13 12:54:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 235 transitions. [2024-11-13 12:54:42,376 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4644268774703557 [2024-11-13 12:54:42,376 INFO L175 Difference]: Start difference. First operand has 88 places, 66 transitions, 502 flow. Second operand 11 states and 235 transitions. [2024-11-13 12:54:42,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 114 transitions, 918 flow [2024-11-13 12:54:42,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 114 transitions, 755 flow, removed 9 selfloop flow, removed 18 redundant places. [2024-11-13 12:54:42,382 INFO L231 Difference]: Finished difference. Result has 83 places, 69 transitions, 432 flow [2024-11-13 12:54:42,382 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=432, PETRI_PLACES=83, PETRI_TRANSITIONS=69} [2024-11-13 12:54:42,382 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 32 predicate places. [2024-11-13 12:54:42,382 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 69 transitions, 432 flow [2024-11-13 12:54:42,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.916666666666666) internal successors, (191), 12 states have internal predecessors, (191), 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) [2024-11-13 12:54:42,382 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:54:42,383 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:42,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-13 12:54:42,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:42,583 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-13 12:54:42,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:42,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1787681758, now seen corresponding path program 15 times [2024-11-13 12:54:42,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:42,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842956527] [2024-11-13 12:54:42,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 12:54:42,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:42,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:42,586 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:42,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-13 12:54:42,685 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-13 12:54:42,685 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-13 12:54:42,685 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:54:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:54:42,775 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-13 12:54:42,775 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 12:54:42,776 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-13 12:54:42,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-13 12:54:42,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-13 12:54:42,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-13 12:54:42,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-13 12:54:42,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-11-13 12:54:42,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-11-13 12:54:42,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-13 12:54:42,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:42,979 INFO L407 BasicCegarLoop]: Path program histogram: [15, 1, 1, 1, 1, 1] [2024-11-13 12:54:43,085 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 12:54:43,086 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 12:54:43,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 12:54:43 BasicIcfg [2024-11-13 12:54:43,094 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 12:54:43,094 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 12:54:43,094 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 12:54:43,095 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 12:54:43,095 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:54:13" (3/4) ... [2024-11-13 12:54:43,097 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 12:54:43,098 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 12:54:43,099 INFO L158 Benchmark]: Toolchain (without parser) took 31918.57ms. Allocated memory was 117.4MB in the beginning and 444.6MB in the end (delta: 327.2MB). Free memory was 93.1MB in the beginning and 370.7MB in the end (delta: -277.6MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2024-11-13 12:54:43,099 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 83.9MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:54:43,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 889.12ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 67.6MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 12:54:43,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.20ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 64.9MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:54:43,100 INFO L158 Benchmark]: Boogie Preprocessor took 75.38ms. Allocated memory is still 117.4MB. Free memory was 64.9MB in the beginning and 61.2MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:54:43,100 INFO L158 Benchmark]: RCFGBuilder took 1228.73ms. Allocated memory is still 117.4MB. Free memory was 61.2MB in the beginning and 81.9MB in the end (delta: -20.7MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-11-13 12:54:43,100 INFO L158 Benchmark]: TraceAbstraction took 29660.29ms. Allocated memory was 117.4MB in the beginning and 444.6MB in the end (delta: 327.2MB). Free memory was 81.1MB in the beginning and 370.8MB in the end (delta: -289.7MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2024-11-13 12:54:43,101 INFO L158 Benchmark]: Witness Printer took 3.68ms. Allocated memory is still 444.6MB. Free memory was 370.8MB in the beginning and 370.7MB in the end (delta: 115.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:54:43,102 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 83.9MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 889.12ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 67.6MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.20ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 64.9MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 75.38ms. Allocated memory is still 117.4MB. Free memory was 64.9MB in the beginning and 61.2MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1228.73ms. Allocated memory is still 117.4MB. Free memory was 61.2MB in the beginning and 81.9MB in the end (delta: -20.7MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * TraceAbstraction took 29660.29ms. Allocated memory was 117.4MB in the beginning and 444.6MB in the end (delta: 327.2MB). Free memory was 81.1MB in the beginning and 370.8MB in the end (delta: -289.7MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * Witness Printer took 3.68ms. Allocated memory is still 444.6MB. Free memory was 370.8MB in the beginning and 370.7MB in the end (delta: 115.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L715] 0 _Bool main$tmp_guard0; [L716] 0 _Bool main$tmp_guard1; [L718] 0 int x = 0; [L719] 0 _Bool x$flush_delayed; [L720] 0 int x$mem_tmp; [L721] 0 _Bool x$r_buff0_thd0; [L722] 0 _Bool x$r_buff0_thd1; [L723] 0 _Bool x$r_buff0_thd2; [L724] 0 _Bool x$r_buff0_thd3; [L725] 0 _Bool x$r_buff1_thd0; [L726] 0 _Bool x$r_buff1_thd1; [L727] 0 _Bool x$r_buff1_thd2; [L728] 0 _Bool x$r_buff1_thd3; [L729] 0 _Bool x$read_delayed; [L730] 0 int *x$read_delayed_var; [L731] 0 int x$w_buff0; [L732] 0 _Bool x$w_buff0_used; [L733] 0 int x$w_buff1; [L734] 0 _Bool x$w_buff1_used; [L736] 0 int y = 0; [L737] 0 _Bool weak$$choice0; [L738] 0 _Bool weak$$choice2; [L849] 0 pthread_t t2537; [L850] FCALL, FORK 0 pthread_create(&t2537, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2537=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L851] 0 pthread_t t2538; [L852] FCALL, FORK 0 pthread_create(&t2538, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2537=0, t2538=1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L853] 0 pthread_t t2539; [L854] FCALL, FORK 0 pthread_create(&t2539, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2537=0, t2538=1, t2539=2, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L812] 3 x$w_buff1 = x$w_buff0 [L813] 3 x$w_buff0 = 2 [L814] 3 x$w_buff1_used = x$w_buff0_used [L815] 3 x$w_buff0_used = (_Bool)1 [L816] CALL 3 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 3 !(!expression) [L816] RET 3 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L817] 3 x$r_buff1_thd0 = x$r_buff0_thd0 [L818] 3 x$r_buff1_thd1 = x$r_buff0_thd1 [L819] 3 x$r_buff1_thd2 = x$r_buff0_thd2 [L820] 3 x$r_buff1_thd3 = x$r_buff0_thd3 [L821] 3 x$r_buff0_thd3 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L824] 3 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L742] 1 y = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L747] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L748] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L749] 1 x$flush_delayed = weak$$choice2 [L750] 1 x$mem_tmp = x [L751] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L752] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L753] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L754] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L755] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L756] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L757] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] 1 __unbuffered_p0_EAX = x [L759] 1 x = x$flush_delayed ? x$mem_tmp : x [L760] 1 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L772] 2 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L775] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L776] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L777] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L778] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L779] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L782] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L783] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L784] 2 x$flush_delayed = weak$$choice2 [L785] 2 x$mem_tmp = x [L786] 2 x = !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L787] 2 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L788] 2 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L789] 2 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L790] 2 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L791] 2 x$r_buff0_thd2 = weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L792] 2 x$r_buff1_thd2 = weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L793] 2 __unbuffered_p1_EAX = x [L794] 2 x = x$flush_delayed ? x$mem_tmp : x [L795] 2 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L798] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L799] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L800] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L801] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L802] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L765] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L827] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L828] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L829] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L830] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L831] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L834] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L805] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L856] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2537=0, t2538=1, t2539=2, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L858] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L858] RET 0 assume_abort_if_not(main$tmp_guard0) [L860] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L861] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L862] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L863] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L864] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2537=0, t2538=1, t2539=2, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=1, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L867] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L868] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L869] 0 x$flush_delayed = weak$$choice2 [L870] 0 x$mem_tmp = x [L871] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L872] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L873] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L874] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L875] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L877] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L878] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1) [L879] 0 x = x$flush_delayed ? x$mem_tmp : x [L880] 0 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2537=0, t2538=1, t2539=2, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L882] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] CALL 0 reach_error() [L18] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L18] 0 __assert_fail ("0", "safe032_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 847]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 850]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 852]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 72 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 29.4s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1120 SdHoareTripleChecker+Valid, 6.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1054 mSDsluCounter, 1115 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1062 mSDsCounter, 238 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6012 IncrementalHoareTripleChecker+Invalid, 6250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 238 mSolverCounterUnsat, 53 mSDtfsCounter, 6012 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 583 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=621occurred in iteration=14, InterpolantAutomatonStates: 173, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 9.2s InterpolantComputationTime, 564 NumberOfCodeBlocks, 562 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 513 ConstructedInterpolants, 0 QuantifiedInterpolants, 4605 SizeOfPredicates, 117 NumberOfNonLiveVariables, 2623 ConjunctsInSsa, 339 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 12:54:43,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a6efee-6184-4934-8df8-f573a393f36d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample