./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix005.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_dcb947ef-2a4d-4e41-b21e-baa53d5fd442/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb947ef-2a4d-4e41-b21e-baa53d5fd442/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_dcb947ef-2a4d-4e41-b21e-baa53d5fd442/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb947ef-2a4d-4e41-b21e-baa53d5fd442/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix005.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb947ef-2a4d-4e41-b21e-baa53d5fd442/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_dcb947ef-2a4d-4e41-b21e-baa53d5fd442/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 0c4e58b38f229da1b25a4c7b1c830f1f36e4dc5c1e18903f04a209f4b4cfa3c5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:13:42,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:13:42,263 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb947ef-2a4d-4e41-b21e-baa53d5fd442/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 13:13:42,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:13:42,274 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:13:42,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:13:42,311 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:13:42,311 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:13:42,311 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:13:42,312 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:13:42,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:13:42,312 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:13:42,312 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:13:42,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:13:42,313 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:13:42,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:13:42,313 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:13:42,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:13:42,313 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:13:42,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:13:42,314 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 13:13:42,314 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 13:13:42,314 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 13:13:42,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:13:42,314 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:13:42,314 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:13:42,314 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:13:42,315 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:13:42,315 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:13:42,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:13:42,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:13:42,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:13:42,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:13:42,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:13:42,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:13:42,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:13:42,316 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:13:42,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:13:42,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:13:42,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:13:42,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:13:42,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:13:42,316 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_dcb947ef-2a4d-4e41-b21e-baa53d5fd442/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 -> 0c4e58b38f229da1b25a4c7b1c830f1f36e4dc5c1e18903f04a209f4b4cfa3c5 [2024-11-13 13:13:42,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:13:42,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:13:42,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:13:42,615 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:13:42,616 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:13:42,617 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb947ef-2a4d-4e41-b21e-baa53d5fd442/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-wmm/mix005.opt.i Unable to find full path for "g++" [2024-11-13 13:13:44,635 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:13:45,020 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:13:45,024 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb947ef-2a4d-4e41-b21e-baa53d5fd442/sv-benchmarks/c/pthread-wmm/mix005.opt.i [2024-11-13 13:13:45,047 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb947ef-2a4d-4e41-b21e-baa53d5fd442/bin/uautomizer-verify-qhAvR1uOyd/data/932b4c98b/97e410e290ec4fe4b41cc23dbfe0a431/FLAG7183ee783 [2024-11-13 13:13:45,070 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb947ef-2a4d-4e41-b21e-baa53d5fd442/bin/uautomizer-verify-qhAvR1uOyd/data/932b4c98b/97e410e290ec4fe4b41cc23dbfe0a431 [2024-11-13 13:13:45,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:13:45,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:13:45,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:13:45,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:13:45,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:13:45,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:13:45" (1/1) ... [2024-11-13 13:13:45,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4224ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:13:45, skipping insertion in model container [2024-11-13 13:13:45,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:13:45" (1/1) ... [2024-11-13 13:13:45,139 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:13:45,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:13:45,609 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:13:45,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:13:45,726 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:13:45,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:13:45 WrapperNode [2024-11-13 13:13:45,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:13:45,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:13:45,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:13:45,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:13:45,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:13:45" (1/1) ... [2024-11-13 13:13:45,748 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:13:45" (1/1) ... [2024-11-13 13:13:45,774 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 155 [2024-11-13 13:13:45,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:13:45,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:13:45,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:13:45,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:13:45,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:13:45" (1/1) ... [2024-11-13 13:13:45,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:13:45" (1/1) ... [2024-11-13 13:13:45,788 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:13:45" (1/1) ... [2024-11-13 13:13:45,806 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 13:13:45,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:13:45" (1/1) ... [2024-11-13 13:13:45,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:13:45" (1/1) ... [2024-11-13 13:13:45,816 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:13:45" (1/1) ... [2024-11-13 13:13:45,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:13:45" (1/1) ... [2024-11-13 13:13:45,824 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:13:45" (1/1) ... [2024-11-13 13:13:45,825 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:13:45" (1/1) ... [2024-11-13 13:13:45,832 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:13:45,833 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:13:45,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:13:45,837 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:13:45,838 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:13:45" (1/1) ... [2024-11-13 13:13:45,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:13:45,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb947ef-2a4d-4e41-b21e-baa53d5fd442/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:13:45,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb947ef-2a4d-4e41-b21e-baa53d5fd442/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:13:45,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb947ef-2a4d-4e41-b21e-baa53d5fd442/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:13:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 13:13:45,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:13:45,914 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-13 13:13:45,914 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-13 13:13:45,915 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-13 13:13:45,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-13 13:13:45,915 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-13 13:13:45,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-13 13:13:45,915 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-13 13:13:45,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-13 13:13:45,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:13:45,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 13:13:45,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:13:45,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:13:45,917 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 13:13:46,119 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:13:46,121 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:13:46,659 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 13:13:46,659 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:13:47,034 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:13:47,034 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:13:47,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:13:47 BoogieIcfgContainer [2024-11-13 13:13:47,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:13:47,038 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:13:47,038 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:13:47,044 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:13:47,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:13:45" (1/3) ... [2024-11-13 13:13:47,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cc379c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:13:47, skipping insertion in model container [2024-11-13 13:13:47,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:13:45" (2/3) ... [2024-11-13 13:13:47,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cc379c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:13:47, skipping insertion in model container [2024-11-13 13:13:47,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:13:47" (3/3) ... [2024-11-13 13:13:47,048 INFO L112 eAbstractionObserver]: Analyzing ICFG mix005.opt.i [2024-11-13 13:13:47,069 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:13:47,071 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG mix005.opt.i that has 5 procedures, 54 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-13 13:13:47,071 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 13:13:47,173 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 13:13:47,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-13 13:13:47,252 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-13 13:13:47,254 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:13:47,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 103 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-11-13 13:13:47,258 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-13 13:13:47,261 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-13 13:13:47,269 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:13:47,281 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;@28fb6873, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:13:47,281 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-13 13:13:47,297 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 13:13:47,297 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-13 13:13:47,297 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:13:47,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:13:47,298 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:47,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 13:13:47,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:47,306 INFO L85 PathProgramCache]: Analyzing trace with hash 448221375, now seen corresponding path program 1 times [2024-11-13 13:13:47,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:47,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092567174] [2024-11-13 13:13:47,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:47,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:48,040 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 13:13:48,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:48,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092567174] [2024-11-13 13:13:48,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092567174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:48,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:48,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 13:13:48,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138197971] [2024-11-13 13:13:48,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:48,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:13:48,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:48,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:13:48,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:13:48,094 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 55 [2024-11-13 13:13:48,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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 13:13:48,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:13:48,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 55 [2024-11-13 13:13:48,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:13:48,893 INFO L124 PetriNetUnfolderBase]: 1175/2003 cut-off events. [2024-11-13 13:13:48,897 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:13:48,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3739 conditions, 2003 events. 1175/2003 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 14325 event pairs, 199 based on Foata normal form. 120/2081 useless extension candidates. Maximal degree in co-relation 3727. Up to 1361 conditions per place. [2024-11-13 13:13:48,939 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 30 selfloop transitions, 2 changer transitions 2/58 dead transitions. [2024-11-13 13:13:48,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 58 transitions, 196 flow [2024-11-13 13:13:48,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:13:48,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:13:48,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-11-13 13:13:48,959 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7454545454545455 [2024-11-13 13:13:48,975 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 123 transitions. [2024-11-13 13:13:48,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 58 transitions, 196 flow [2024-11-13 13:13:48,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 58 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-13 13:13:48,984 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-13 13:13:48,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-11-13 13:13:48,990 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-13 13:13:48,991 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-13 13:13:48,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 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 13:13:48,991 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:13:48,991 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:48,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:13:48,993 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 13:13:48,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:48,995 INFO L85 PathProgramCache]: Analyzing trace with hash -984061845, now seen corresponding path program 1 times [2024-11-13 13:13:48,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:48,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132712178] [2024-11-13 13:13:48,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:48,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:49,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:49,120 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 13:13:49,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:49,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132712178] [2024-11-13 13:13:49,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132712178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:49,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:49,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 13:13:49,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437952896] [2024-11-13 13:13:49,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:49,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:13:49,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:49,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:13:49,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:13:49,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 55 [2024-11-13 13:13:49,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 13:13:49,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:13:49,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 55 [2024-11-13 13:13:49,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:13:49,672 INFO L124 PetriNetUnfolderBase]: 1027/1867 cut-off events. [2024-11-13 13:13:49,672 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-11-13 13:13:49,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3477 conditions, 1867 events. 1027/1867 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 13974 event pairs, 1027 based on Foata normal form. 60/1861 useless extension candidates. Maximal degree in co-relation 3467. Up to 1484 conditions per place. [2024-11-13 13:13:49,693 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 20 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-13 13:13:49,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 146 flow [2024-11-13 13:13:49,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:13:49,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 13:13:49,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-13 13:13:49,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6303030303030303 [2024-11-13 13:13:49,697 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 104 transitions. [2024-11-13 13:13:49,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 146 flow [2024-11-13 13:13:49,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 142 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 13:13:49,702 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-13 13:13:49,702 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-13 13:13:49,703 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-13 13:13:49,704 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-13 13:13:49,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 13:13:49,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:13:49,704 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:49,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:13:49,706 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 13:13:49,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:49,706 INFO L85 PathProgramCache]: Analyzing trace with hash -984060592, now seen corresponding path program 1 times [2024-11-13 13:13:49,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:49,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576756870] [2024-11-13 13:13:49,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:49,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:50,109 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 13:13:50,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:50,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576756870] [2024-11-13 13:13:50,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576756870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:50,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:50,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:13:50,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835776797] [2024-11-13 13:13:50,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:50,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:13:50,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:50,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:13:50,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:13:50,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-13 13:13:50,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:50,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:13:50,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-13 13:13:50,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:13:54,085 INFO L124 PetriNetUnfolderBase]: 14679/22350 cut-off events. [2024-11-13 13:13:54,086 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:13:54,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42644 conditions, 22350 events. 14679/22350 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1279. Compared 170422 event pairs, 3971 based on Foata normal form. 0/21666 useless extension candidates. Maximal degree in co-relation 42638. Up to 9077 conditions per place. [2024-11-13 13:13:54,255 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 41 selfloop transitions, 8 changer transitions 84/149 dead transitions. [2024-11-13 13:13:54,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 149 transitions, 578 flow [2024-11-13 13:13:54,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:13:54,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 13:13:54,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 324 transitions. [2024-11-13 13:13:54,261 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2024-11-13 13:13:54,261 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 324 transitions. [2024-11-13 13:13:54,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 149 transitions, 578 flow [2024-11-13 13:13:54,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 149 transitions, 577 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 13:13:54,269 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 207 flow [2024-11-13 13:13:54,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=207, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-11-13 13:13:54,271 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-13 13:13:54,271 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 207 flow [2024-11-13 13:13:54,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:54,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:13:54,272 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 13:13:54,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:13:54,273 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 13:13:54,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:54,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1159140751, now seen corresponding path program 1 times [2024-11-13 13:13:54,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:54,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748341534] [2024-11-13 13:13:54,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:54,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:54,623 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 13:13:54,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:54,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748341534] [2024-11-13 13:13:54,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748341534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:54,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:54,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:13:54,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561638000] [2024-11-13 13:13:54,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:54,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:13:54,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:54,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:13:54,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:13:54,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-13 13:13:54,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 207 flow. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 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 13:13:54,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:13:54,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-13 13:13:54,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:13:57,560 INFO L124 PetriNetUnfolderBase]: 10337/16691 cut-off events. [2024-11-13 13:13:57,560 INFO L125 PetriNetUnfolderBase]: For 25119/25155 co-relation queries the response was YES. [2024-11-13 13:13:57,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51286 conditions, 16691 events. 10337/16691 cut-off events. For 25119/25155 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 129960 event pairs, 1897 based on Foata normal form. 450/17034 useless extension candidates. Maximal degree in co-relation 51271. Up to 6057 conditions per place. [2024-11-13 13:13:57,718 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 50 selfloop transitions, 9 changer transitions 76/151 dead transitions. [2024-11-13 13:13:57,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 151 transitions, 1009 flow [2024-11-13 13:13:57,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:13:57,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 13:13:57,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 332 transitions. [2024-11-13 13:13:57,721 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6036363636363636 [2024-11-13 13:13:57,721 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 207 flow. Second operand 10 states and 332 transitions. [2024-11-13 13:13:57,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 151 transitions, 1009 flow [2024-11-13 13:13:57,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 151 transitions, 859 flow, removed 38 selfloop flow, removed 4 redundant places. [2024-11-13 13:13:57,864 INFO L231 Difference]: Finished difference. Result has 77 places, 55 transitions, 273 flow [2024-11-13 13:13:57,864 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=273, PETRI_PLACES=77, PETRI_TRANSITIONS=55} [2024-11-13 13:13:57,866 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-11-13 13:13:57,866 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 55 transitions, 273 flow [2024-11-13 13:13:57,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 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 13:13:57,866 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:13:57,866 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 13:13:57,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:13:57,866 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 13:13:57,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:57,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1190777921, now seen corresponding path program 1 times [2024-11-13 13:13:57,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:57,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577710198] [2024-11-13 13:13:57,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:57,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:58,322 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 13:13:58,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:58,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577710198] [2024-11-13 13:13:58,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577710198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:58,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:58,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:13:58,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78207792] [2024-11-13 13:13:58,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:58,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:13:58,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:58,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:13:58,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:13:58,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-13 13:13:58,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 55 transitions, 273 flow. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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 13:13:58,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:13:58,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-13 13:13:58,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:14:00,369 INFO L124 PetriNetUnfolderBase]: 7680/13370 cut-off events. [2024-11-13 13:14:00,369 INFO L125 PetriNetUnfolderBase]: For 25286/25580 co-relation queries the response was YES. [2024-11-13 13:14:00,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40503 conditions, 13370 events. 7680/13370 cut-off events. For 25286/25580 co-relation queries the response was YES. Maximal size of possible extension queue 780. Compared 111389 event pairs, 3713 based on Foata normal form. 351/13435 useless extension candidates. Maximal degree in co-relation 40481. Up to 7913 conditions per place. [2024-11-13 13:14:00,495 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 45 selfloop transitions, 6 changer transitions 35/110 dead transitions. [2024-11-13 13:14:00,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 110 transitions, 727 flow [2024-11-13 13:14:00,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:14:00,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 13:14:00,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 242 transitions. [2024-11-13 13:14:00,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-11-13 13:14:00,498 INFO L175 Difference]: Start difference. First operand has 77 places, 55 transitions, 273 flow. Second operand 7 states and 242 transitions. [2024-11-13 13:14:00,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 110 transitions, 727 flow [2024-11-13 13:14:00,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 110 transitions, 694 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-11-13 13:14:00,724 INFO L231 Difference]: Finished difference. Result has 77 places, 59 transitions, 334 flow [2024-11-13 13:14:00,725 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=334, PETRI_PLACES=77, PETRI_TRANSITIONS=59} [2024-11-13 13:14:00,725 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-11-13 13:14:00,726 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 59 transitions, 334 flow [2024-11-13 13:14:00,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 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 13:14:00,726 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:14:00,726 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 13:14:00,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:14:00,727 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 13:14:00,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:00,727 INFO L85 PathProgramCache]: Analyzing trace with hash -725937440, now seen corresponding path program 1 times [2024-11-13 13:14:00,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:00,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276681634] [2024-11-13 13:14:00,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:00,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:01,119 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 13:14:01,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:01,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276681634] [2024-11-13 13:14:01,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276681634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:01,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:01,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:14:01,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467264691] [2024-11-13 13:14:01,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:01,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:14:01,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:01,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:14:01,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:14:01,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-13 13:14:01,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 59 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 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 13:14:01,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:14:01,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-13 13:14:01,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:14:03,440 INFO L124 PetriNetUnfolderBase]: 8358/13914 cut-off events. [2024-11-13 13:14:03,440 INFO L125 PetriNetUnfolderBase]: For 29633/29660 co-relation queries the response was YES. [2024-11-13 13:14:03,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45634 conditions, 13914 events. 8358/13914 cut-off events. For 29633/29660 co-relation queries the response was YES. Maximal size of possible extension queue 707. Compared 107946 event pairs, 1215 based on Foata normal form. 272/14109 useless extension candidates. Maximal degree in co-relation 45610. Up to 5878 conditions per place. [2024-11-13 13:14:03,569 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 64 selfloop transitions, 16 changer transitions 64/160 dead transitions. [2024-11-13 13:14:03,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 160 transitions, 1218 flow [2024-11-13 13:14:03,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:14:03,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 13:14:03,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 331 transitions. [2024-11-13 13:14:03,573 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6018181818181818 [2024-11-13 13:14:03,573 INFO L175 Difference]: Start difference. First operand has 77 places, 59 transitions, 334 flow. Second operand 10 states and 331 transitions. [2024-11-13 13:14:03,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 160 transitions, 1218 flow [2024-11-13 13:14:03,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 160 transitions, 1156 flow, removed 27 selfloop flow, removed 7 redundant places. [2024-11-13 13:14:03,675 INFO L231 Difference]: Finished difference. Result has 84 places, 68 transitions, 481 flow [2024-11-13 13:14:03,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=481, PETRI_PLACES=84, PETRI_TRANSITIONS=68} [2024-11-13 13:14:03,677 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 22 predicate places. [2024-11-13 13:14:03,677 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 68 transitions, 481 flow [2024-11-13 13:14:03,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 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 13:14:03,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:14:03,677 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 13:14:03,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:14:03,677 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 13:14:03,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:03,678 INFO L85 PathProgramCache]: Analyzing trace with hash -535170218, now seen corresponding path program 1 times [2024-11-13 13:14:03,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:03,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681610436] [2024-11-13 13:14:03,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:03,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:04,131 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 13:14:04,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:04,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681610436] [2024-11-13 13:14:04,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681610436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:04,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:04,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:14:04,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300673939] [2024-11-13 13:14:04,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:04,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:14:04,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:04,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:14:04,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:04,149 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-13 13:14:04,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 68 transitions, 481 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 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 13:14:04,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:14:04,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-13 13:14:04,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:14:07,298 INFO L124 PetriNetUnfolderBase]: 17289/26272 cut-off events. [2024-11-13 13:14:07,298 INFO L125 PetriNetUnfolderBase]: For 51043/54449 co-relation queries the response was YES. [2024-11-13 13:14:07,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74965 conditions, 26272 events. 17289/26272 cut-off events. For 51043/54449 co-relation queries the response was YES. Maximal size of possible extension queue 1297. Compared 196502 event pairs, 2930 based on Foata normal form. 1113/26500 useless extension candidates. Maximal degree in co-relation 74937. Up to 13885 conditions per place. [2024-11-13 13:14:07,709 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 60 selfloop transitions, 6 changer transitions 0/104 dead transitions. [2024-11-13 13:14:07,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 104 transitions, 789 flow [2024-11-13 13:14:07,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:14:07,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 13:14:07,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 148 transitions. [2024-11-13 13:14:07,711 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6727272727272727 [2024-11-13 13:14:07,711 INFO L175 Difference]: Start difference. First operand has 84 places, 68 transitions, 481 flow. Second operand 4 states and 148 transitions. [2024-11-13 13:14:07,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 104 transitions, 789 flow [2024-11-13 13:14:07,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 104 transitions, 767 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-13 13:14:07,891 INFO L231 Difference]: Finished difference. Result has 78 places, 73 transitions, 505 flow [2024-11-13 13:14:07,891 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=505, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2024-11-13 13:14:07,892 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 16 predicate places. [2024-11-13 13:14:07,892 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 73 transitions, 505 flow [2024-11-13 13:14:07,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 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 13:14:07,892 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:14:07,892 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 13:14:07,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:14:07,893 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 13:14:07,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:07,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1314255406, now seen corresponding path program 1 times [2024-11-13 13:14:07,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:07,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870126738] [2024-11-13 13:14:07,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:07,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:07,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:08,390 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 13:14:08,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:08,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870126738] [2024-11-13 13:14:08,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870126738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:08,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:08,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:14:08,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391001378] [2024-11-13 13:14:08,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:08,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:14:08,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:08,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:14:08,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:14:08,423 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-13 13:14:08,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 73 transitions, 505 flow. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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 13:14:08,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:14:08,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-13 13:14:08,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:14:12,775 INFO L124 PetriNetUnfolderBase]: 19456/30547 cut-off events. [2024-11-13 13:14:12,776 INFO L125 PetriNetUnfolderBase]: For 70861/72357 co-relation queries the response was YES. [2024-11-13 13:14:12,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100844 conditions, 30547 events. 19456/30547 cut-off events. For 70861/72357 co-relation queries the response was YES. Maximal size of possible extension queue 1441. Compared 243838 event pairs, 8576 based on Foata normal form. 392/28376 useless extension candidates. Maximal degree in co-relation 100817. Up to 13460 conditions per place. [2024-11-13 13:14:12,982 INFO L140 encePairwiseOnDemand]: 47/55 looper letters, 90 selfloop transitions, 21 changer transitions 8/140 dead transitions. [2024-11-13 13:14:12,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 140 transitions, 1061 flow [2024-11-13 13:14:12,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:14:12,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-13 13:14:12,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 267 transitions. [2024-11-13 13:14:12,984 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6068181818181818 [2024-11-13 13:14:12,985 INFO L175 Difference]: Start difference. First operand has 78 places, 73 transitions, 505 flow. Second operand 8 states and 267 transitions. [2024-11-13 13:14:12,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 140 transitions, 1061 flow [2024-11-13 13:14:13,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 140 transitions, 1045 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-13 13:14:13,312 INFO L231 Difference]: Finished difference. Result has 88 places, 76 transitions, 602 flow [2024-11-13 13:14:13,312 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=602, PETRI_PLACES=88, PETRI_TRANSITIONS=76} [2024-11-13 13:14:13,313 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 26 predicate places. [2024-11-13 13:14:13,313 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 76 transitions, 602 flow [2024-11-13 13:14:13,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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 13:14:13,313 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:14:13,313 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 13:14:13,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:14:13,314 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 13:14:13,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:13,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1358838178, now seen corresponding path program 1 times [2024-11-13 13:14:13,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:13,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841986899] [2024-11-13 13:14:13,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:13,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:13,663 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 13:14:13,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:13,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841986899] [2024-11-13 13:14:13,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841986899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:13,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:13,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:14:13,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121513540] [2024-11-13 13:14:13,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:13,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:14:13,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:13,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:14:13,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:14:13,676 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-13 13:14:13,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 76 transitions, 602 flow. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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 13:14:13,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:14:13,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-13 13:14:13,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:14:18,300 INFO L124 PetriNetUnfolderBase]: 20124/30887 cut-off events. [2024-11-13 13:14:18,300 INFO L125 PetriNetUnfolderBase]: For 57942/62347 co-relation queries the response was YES. [2024-11-13 13:14:18,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94942 conditions, 30887 events. 20124/30887 cut-off events. For 57942/62347 co-relation queries the response was YES. Maximal size of possible extension queue 1520. Compared 234960 event pairs, 2131 based on Foata normal form. 1511/31663 useless extension candidates. Maximal degree in co-relation 94910. Up to 12625 conditions per place. [2024-11-13 13:14:18,545 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 77 selfloop transitions, 10 changer transitions 3/127 dead transitions. [2024-11-13 13:14:18,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 127 transitions, 1045 flow [2024-11-13 13:14:18,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:14:18,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 13:14:18,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2024-11-13 13:14:18,546 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6872727272727273 [2024-11-13 13:14:18,547 INFO L175 Difference]: Start difference. First operand has 88 places, 76 transitions, 602 flow. Second operand 5 states and 189 transitions. [2024-11-13 13:14:18,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 127 transitions, 1045 flow [2024-11-13 13:14:18,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 127 transitions, 1019 flow, removed 13 selfloop flow, removed 0 redundant places. [2024-11-13 13:14:18,795 INFO L231 Difference]: Finished difference. Result has 94 places, 78 transitions, 615 flow [2024-11-13 13:14:18,795 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=615, PETRI_PLACES=94, PETRI_TRANSITIONS=78} [2024-11-13 13:14:18,795 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 32 predicate places. [2024-11-13 13:14:18,795 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 78 transitions, 615 flow [2024-11-13 13:14:18,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 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 13:14:18,796 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:14:18,796 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] [2024-11-13 13:14:18,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:14:18,796 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 13:14:18,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:18,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1883885177, now seen corresponding path program 1 times [2024-11-13 13:14:18,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:18,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275023666] [2024-11-13 13:14:18,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:18,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:19,509 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 13:14:19,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:19,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275023666] [2024-11-13 13:14:19,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275023666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:19,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:19,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:14:19,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546475977] [2024-11-13 13:14:19,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:19,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:14:19,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:19,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:14:19,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:14:19,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-13 13:14:19,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 78 transitions, 615 flow. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 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 13:14:19,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:14:19,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-13 13:14:19,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:14:24,924 INFO L124 PetriNetUnfolderBase]: 20386/35398 cut-off events. [2024-11-13 13:14:24,924 INFO L125 PetriNetUnfolderBase]: For 79662/87995 co-relation queries the response was YES. [2024-11-13 13:14:25,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112834 conditions, 35398 events. 20386/35398 cut-off events. For 79662/87995 co-relation queries the response was YES. Maximal size of possible extension queue 2036. Compared 332080 event pairs, 6101 based on Foata normal form. 703/32929 useless extension candidates. Maximal degree in co-relation 112798. Up to 13235 conditions per place. [2024-11-13 13:14:25,163 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 69 selfloop transitions, 6 changer transitions 5/127 dead transitions. [2024-11-13 13:14:25,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 127 transitions, 1043 flow [2024-11-13 13:14:25,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:14:25,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:14:25,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2024-11-13 13:14:25,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-11-13 13:14:25,165 INFO L175 Difference]: Start difference. First operand has 94 places, 78 transitions, 615 flow. Second operand 6 states and 210 transitions. [2024-11-13 13:14:25,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 127 transitions, 1043 flow [2024-11-13 13:14:25,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 127 transitions, 1018 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-11-13 13:14:25,475 INFO L231 Difference]: Finished difference. Result has 97 places, 82 transitions, 669 flow [2024-11-13 13:14:25,475 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=669, PETRI_PLACES=97, PETRI_TRANSITIONS=82} [2024-11-13 13:14:25,476 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 35 predicate places. [2024-11-13 13:14:25,476 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 82 transitions, 669 flow [2024-11-13 13:14:25,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 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 13:14:25,476 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:14:25,477 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] [2024-11-13 13:14:25,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 13:14:25,477 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 13:14:25,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:25,477 INFO L85 PathProgramCache]: Analyzing trace with hash 2142141743, now seen corresponding path program 2 times [2024-11-13 13:14:25,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:25,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457108527] [2024-11-13 13:14:25,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:25,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:25,788 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 13:14:25,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:25,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457108527] [2024-11-13 13:14:25,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457108527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:25,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:25,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:14:25,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659674620] [2024-11-13 13:14:25,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:25,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:14:25,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:25,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:14:25,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:14:25,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-13 13:14:25,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 82 transitions, 669 flow. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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 13:14:25,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:14:25,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-13 13:14:25,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:14:31,666 INFO L124 PetriNetUnfolderBase]: 26400/39977 cut-off events. [2024-11-13 13:14:31,667 INFO L125 PetriNetUnfolderBase]: For 88787/98728 co-relation queries the response was YES. [2024-11-13 13:14:31,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132338 conditions, 39977 events. 26400/39977 cut-off events. For 88787/98728 co-relation queries the response was YES. Maximal size of possible extension queue 2204. Compared 311118 event pairs, 1627 based on Foata normal form. 1991/40887 useless extension candidates. Maximal degree in co-relation 132301. Up to 12928 conditions per place. [2024-11-13 13:14:31,934 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 88 selfloop transitions, 14 changer transitions 5/145 dead transitions. [2024-11-13 13:14:31,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 145 transitions, 1214 flow [2024-11-13 13:14:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:14:31,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:14:31,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 228 transitions. [2024-11-13 13:14:31,936 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6909090909090909 [2024-11-13 13:14:31,936 INFO L175 Difference]: Start difference. First operand has 97 places, 82 transitions, 669 flow. Second operand 6 states and 228 transitions. [2024-11-13 13:14:31,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 145 transitions, 1214 flow [2024-11-13 13:14:32,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 145 transitions, 1211 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-13 13:14:32,099 INFO L231 Difference]: Finished difference. Result has 103 places, 84 transitions, 707 flow [2024-11-13 13:14:32,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=707, PETRI_PLACES=103, PETRI_TRANSITIONS=84} [2024-11-13 13:14:32,100 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 41 predicate places. [2024-11-13 13:14:32,100 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 84 transitions, 707 flow [2024-11-13 13:14:32,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 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 13:14:32,100 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:14:32,100 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, 1, 1] [2024-11-13 13:14:32,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:14:32,101 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 13:14:32,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:32,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1784239248, now seen corresponding path program 1 times [2024-11-13 13:14:32,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:32,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061425235] [2024-11-13 13:14:32,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:32,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:32,711 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 13:14:32,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:32,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061425235] [2024-11-13 13:14:32,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061425235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:32,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:32,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:14:32,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413616604] [2024-11-13 13:14:32,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:32,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:14:32,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:32,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:14:32,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:14:32,731 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-13 13:14:32,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 84 transitions, 707 flow. Second operand has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 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 13:14:32,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:14:32,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-13 13:14:32,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:14:37,901 INFO L124 PetriNetUnfolderBase]: 23060/34645 cut-off events. [2024-11-13 13:14:37,901 INFO L125 PetriNetUnfolderBase]: For 113375/123980 co-relation queries the response was YES. [2024-11-13 13:14:38,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129411 conditions, 34645 events. 23060/34645 cut-off events. For 113375/123980 co-relation queries the response was YES. Maximal size of possible extension queue 2201. Compared 267879 event pairs, 1487 based on Foata normal form. 1179/34759 useless extension candidates. Maximal degree in co-relation 129371. Up to 12928 conditions per place. [2024-11-13 13:14:38,144 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 73 selfloop transitions, 18 changer transitions 13/137 dead transitions. [2024-11-13 13:14:38,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 137 transitions, 1149 flow [2024-11-13 13:14:38,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:14:38,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 13:14:38,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 249 transitions. [2024-11-13 13:14:38,146 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6467532467532467 [2024-11-13 13:14:38,146 INFO L175 Difference]: Start difference. First operand has 103 places, 84 transitions, 707 flow. Second operand 7 states and 249 transitions. [2024-11-13 13:14:38,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 137 transitions, 1149 flow [2024-11-13 13:14:39,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 137 transitions, 1068 flow, removed 24 selfloop flow, removed 10 redundant places. [2024-11-13 13:14:39,165 INFO L231 Difference]: Finished difference. Result has 98 places, 78 transitions, 605 flow [2024-11-13 13:14:39,165 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=605, PETRI_PLACES=98, PETRI_TRANSITIONS=78} [2024-11-13 13:14:39,165 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 36 predicate places. [2024-11-13 13:14:39,165 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 78 transitions, 605 flow [2024-11-13 13:14:39,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.0) internal successors, (182), 7 states have internal predecessors, (182), 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 13:14:39,166 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:14:39,166 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:39,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:14:39,166 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-13 13:14:39,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:39,166 INFO L85 PathProgramCache]: Analyzing trace with hash -693839387, now seen corresponding path program 1 times [2024-11-13 13:14:39,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:39,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822329048] [2024-11-13 13:14:39,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:39,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:39,622 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 13:14:39,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:39,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822329048] [2024-11-13 13:14:39,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822329048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:39,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:39,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:14:39,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231284537] [2024-11-13 13:14:39,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:39,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:14:39,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:39,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:14:39,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:14:39,636 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-13 13:14:39,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 78 transitions, 605 flow. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 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 13:14:39,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:14:39,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-13 13:14:39,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand