./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 a75df8feda97f2ebeb5cc4266066f8deba1b6726a771b6143f22a640cfcf63d2 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:20:32,183 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:20:32,268 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:20:32,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:20:32,273 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:20:32,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:20:32,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:20:32,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:20:32,307 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:20:32,308 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:20:32,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:20:32,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:20:32,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:20:32,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:20:32,310 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:20:32,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:20:32,311 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:20:32,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:20:32,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:20:32,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:20:32,312 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:20:32,317 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:20:32,317 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:20:32,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:20:32,318 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:20:32,321 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:20:32,321 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:20:32,322 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:20:32,322 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:20:32,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:20:32,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:20:32,323 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:20:32,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:20:32,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:20:32,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:20:32,324 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:20:32,324 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:20:32,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:20:32,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:20:32,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:20:32,327 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:20:32,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:20:32,327 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a75df8feda97f2ebeb5cc4266066f8deba1b6726a771b6143f22a640cfcf63d2 [2024-11-20 17:20:32,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:20:32,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:20:32,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:20:32,609 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:20:32,609 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:20:32,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i [2024-11-20 17:20:34,117 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:20:34,361 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:20:34,362 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix014_power.oepc_pso.oepc_rmo.oepc.i [2024-11-20 17:20:34,378 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b83a1181/04116c32f0d243389c6d536f46e61f86/FLAG6942fd3a2 [2024-11-20 17:20:34,392 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b83a1181/04116c32f0d243389c6d536f46e61f86 [2024-11-20 17:20:34,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:20:34,395 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:20:34,397 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:20:34,397 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:20:34,403 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:20:34,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:20:34" (1/1) ... [2024-11-20 17:20:34,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2327ffb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:34, skipping insertion in model container [2024-11-20 17:20:34,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:20:34" (1/1) ... [2024-11-20 17:20:34,457 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:20:34,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:20:34,930 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:20:35,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:20:35,057 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:20:35,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:35 WrapperNode [2024-11-20 17:20:35,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:20:35,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:20:35,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:20:35,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:20:35,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:35" (1/1) ... [2024-11-20 17:20:35,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:35" (1/1) ... [2024-11-20 17:20:35,154 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 133 [2024-11-20 17:20:35,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:20:35,155 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:20:35,155 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:20:35,155 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:20:35,167 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:35" (1/1) ... [2024-11-20 17:20:35,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:35" (1/1) ... [2024-11-20 17:20:35,172 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:35" (1/1) ... [2024-11-20 17:20:35,212 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]. [2024-11-20 17:20:35,212 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:35" (1/1) ... [2024-11-20 17:20:35,212 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:35" (1/1) ... [2024-11-20 17:20:35,219 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:35" (1/1) ... [2024-11-20 17:20:35,221 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:35" (1/1) ... [2024-11-20 17:20:35,227 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:35" (1/1) ... [2024-11-20 17:20:35,228 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:35" (1/1) ... [2024-11-20 17:20:35,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:20:35,238 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:20:35,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:20:35,240 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:20:35,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:35" (1/1) ... [2024-11-20 17:20:35,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:20:35,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:20:35,275 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 17:20:35,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 17:20:35,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 17:20:35,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:20:35,320 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-20 17:20:35,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-20 17:20:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-20 17:20:35,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-20 17:20:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-20 17:20:35,321 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-20 17:20:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-20 17:20:35,322 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-20 17:20:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:20:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 17:20:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:20:35,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:20:35,324 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:20:35,456 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:20:35,459 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:20:35,826 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:20:35,827 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:20:36,047 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:20:36,049 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 17:20:36,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:20:36 BoogieIcfgContainer [2024-11-20 17:20:36,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:20:36,052 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:20:36,052 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:20:36,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:20:36,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:20:34" (1/3) ... [2024-11-20 17:20:36,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfcd8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:20:36, skipping insertion in model container [2024-11-20 17:20:36,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:35" (2/3) ... [2024-11-20 17:20:36,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfcd8f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:20:36, skipping insertion in model container [2024-11-20 17:20:36,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:20:36" (3/3) ... [2024-11-20 17:20:36,059 INFO L112 eAbstractionObserver]: Analyzing ICFG mix014_power.oepc_pso.oepc_rmo.oepc.i [2024-11-20 17:20:36,076 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:20:36,076 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-20 17:20:36,077 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:20:36,146 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 17:20:36,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-20 17:20:36,221 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-20 17:20:36,222 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:20:36,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 107 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. [2024-11-20 17:20:36,229 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-20 17:20:36,233 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-20 17:20:36,243 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:20:36,250 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;@25bb0de7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:20:36,251 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-20 17:20:36,256 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:20:36,256 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-20 17:20:36,256 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:20:36,256 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:36,257 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-20 17:20:36,257 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:20:36,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:36,264 INFO L85 PathProgramCache]: Analyzing trace with hash 13010806, now seen corresponding path program 1 times [2024-11-20 17:20:36,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:36,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114592661] [2024-11-20 17:20:36,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:36,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:36,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:36,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:36,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114592661] [2024-11-20 17:20:36,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114592661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:36,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:36,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:20:36,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541209603] [2024-11-20 17:20:36,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:36,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:20:36,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:36,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:20:36,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:20:36,761 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-11-20 17:20:36,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:20:36,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:36,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-11-20 17:20:36,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:37,996 INFO L124 PetriNetUnfolderBase]: 3311/5198 cut-off events. [2024-11-20 17:20:37,996 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-20 17:20:38,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9878 conditions, 5198 events. 3311/5198 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 33882 event pairs, 2177 based on Foata normal form. 288/5441 useless extension candidates. Maximal degree in co-relation 9866. Up to 3661 conditions per place. [2024-11-20 17:20:38,040 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 41 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2024-11-20 17:20:38,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 245 flow [2024-11-20 17:20:38,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:20:38,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:20:38,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-11-20 17:20:38,053 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2024-11-20 17:20:38,055 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 128 transitions. [2024-11-20 17:20:38,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 245 flow [2024-11-20 17:20:38,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 17:20:38,064 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-20 17:20:38,068 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} [2024-11-20 17:20:38,074 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-20 17:20:38,075 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-20 17:20:38,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:20:38,075 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:38,075 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:38,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:20:38,076 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:20:38,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:38,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1708974511, now seen corresponding path program 1 times [2024-11-20 17:20:38,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:38,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86740275] [2024-11-20 17:20:38,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:38,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:38,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:38,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:38,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86740275] [2024-11-20 17:20:38,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86740275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:38,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:38,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:20:38,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316033275] [2024-11-20 17:20:38,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:38,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:20:38,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:38,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:20:38,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:20:38,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-11-20 17:20:38,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:20:38,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:38,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-11-20 17:20:38,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:38,907 INFO L124 PetriNetUnfolderBase]: 2903/4915 cut-off events. [2024-11-20 17:20:38,907 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-11-20 17:20:38,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9319 conditions, 4915 events. 2903/4915 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 35282 event pairs, 2903 based on Foata normal form. 144/4897 useless extension candidates. Maximal degree in co-relation 9309. Up to 4016 conditions per place. [2024-11-20 17:20:38,941 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 22 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-20 17:20:38,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 150 flow [2024-11-20 17:20:38,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:20:38,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:20:38,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-11-20 17:20:38,943 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-11-20 17:20:38,944 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 100 transitions. [2024-11-20 17:20:38,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 150 flow [2024-11-20 17:20:38,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:20:38,945 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-20 17:20:38,945 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} [2024-11-20 17:20:38,946 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-20 17:20:38,946 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-20 17:20:38,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:20:38,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:38,947 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:38,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:20:38,948 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:20:38,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:38,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1708973255, now seen corresponding path program 1 times [2024-11-20 17:20:38,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:38,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522201945] [2024-11-20 17:20:38,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:38,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:39,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:39,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:39,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522201945] [2024-11-20 17:20:39,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522201945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:39,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:39,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:20:39,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805588267] [2024-11-20 17:20:39,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:39,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:20:39,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:39,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:20:39,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:20:39,250 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-11-20 17:20:39,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:20:39,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:39,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-11-20 17:20:39,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:44,161 INFO L124 PetriNetUnfolderBase]: 32013/46212 cut-off events. [2024-11-20 17:20:44,162 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:20:44,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89695 conditions, 46212 events. 32013/46212 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1981. Compared 335234 event pairs, 8935 based on Foata normal form. 0/45159 useless extension candidates. Maximal degree in co-relation 89689. Up to 19856 conditions per place. [2024-11-20 17:20:44,528 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 47 selfloop transitions, 8 changer transitions 101/169 dead transitions. [2024-11-20 17:20:44,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 169 transitions, 664 flow [2024-11-20 17:20:44,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 17:20:44,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 17:20:44,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 320 transitions. [2024-11-20 17:20:44,533 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6464646464646465 [2024-11-20 17:20:44,533 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 320 transitions. [2024-11-20 17:20:44,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 169 transitions, 664 flow [2024-11-20 17:20:44,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 169 transitions, 663 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:20:44,542 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 207 flow [2024-11-20 17:20:44,542 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} [2024-11-20 17:20:44,543 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-20 17:20:44,544 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 207 flow [2024-11-20 17:20:44,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:20:44,544 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:44,545 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:44,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:20:44,545 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:20:44,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:44,546 INFO L85 PathProgramCache]: Analyzing trace with hash -455486824, now seen corresponding path program 1 times [2024-11-20 17:20:44,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:44,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272295030] [2024-11-20 17:20:44,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:44,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:44,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:44,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:44,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272295030] [2024-11-20 17:20:44,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272295030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:44,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:44,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:20:44,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794010020] [2024-11-20 17:20:44,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:44,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:20:44,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:44,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:20:44,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:20:44,751 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 55 [2024-11-20 17:20:44,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:20:44,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:44,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 55 [2024-11-20 17:20:44,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:48,099 INFO L124 PetriNetUnfolderBase]: 17585/28210 cut-off events. [2024-11-20 17:20:48,100 INFO L125 PetriNetUnfolderBase]: For 26329/28818 co-relation queries the response was YES. [2024-11-20 17:20:48,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75563 conditions, 28210 events. 17585/28210 cut-off events. For 26329/28818 co-relation queries the response was YES. Maximal size of possible extension queue 1362. Compared 230059 event pairs, 5312 based on Foata normal form. 1020/28522 useless extension candidates. Maximal degree in co-relation 75548. Up to 15244 conditions per place. [2024-11-20 17:20:48,328 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 34 selfloop transitions, 3 changer transitions 43/103 dead transitions. [2024-11-20 17:20:48,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 103 transitions, 531 flow [2024-11-20 17:20:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:20:48,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 17:20:48,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 237 transitions. [2024-11-20 17:20:48,331 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6155844155844156 [2024-11-20 17:20:48,332 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 207 flow. Second operand 7 states and 237 transitions. [2024-11-20 17:20:48,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 103 transitions, 531 flow [2024-11-20 17:20:48,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 103 transitions, 477 flow, removed 15 selfloop flow, removed 4 redundant places. [2024-11-20 17:20:48,589 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 192 flow [2024-11-20 17:20:48,589 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=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=192, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-11-20 17:20:48,590 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-11-20 17:20:48,590 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 192 flow [2024-11-20 17:20:48,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:20:48,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:48,591 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] [2024-11-20 17:20:48,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:20:48,591 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:20:48,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:48,592 INFO L85 PathProgramCache]: Analyzing trace with hash 541288801, now seen corresponding path program 1 times [2024-11-20 17:20:48,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:48,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443483504] [2024-11-20 17:20:48,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:48,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:48,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:48,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:48,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443483504] [2024-11-20 17:20:48,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443483504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:48,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:48,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:20:48,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701436156] [2024-11-20 17:20:48,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:48,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:20:48,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:48,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:20:48,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:20:48,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-11-20 17:20:48,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:20:48,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:48,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-11-20 17:20:48,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:52,571 INFO L124 PetriNetUnfolderBase]: 22115/32644 cut-off events. [2024-11-20 17:20:52,572 INFO L125 PetriNetUnfolderBase]: For 36541/36599 co-relation queries the response was YES. [2024-11-20 17:20:52,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91441 conditions, 32644 events. 22115/32644 cut-off events. For 36541/36599 co-relation queries the response was YES. Maximal size of possible extension queue 1330. Compared 230991 event pairs, 6860 based on Foata normal form. 777/33401 useless extension candidates. Maximal degree in co-relation 91423. Up to 17000 conditions per place. [2024-11-20 17:20:52,826 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 64 selfloop transitions, 12 changer transitions 78/167 dead transitions. [2024-11-20 17:20:52,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 167 transitions, 940 flow [2024-11-20 17:20:52,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 17:20:52,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 17:20:52,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 333 transitions. [2024-11-20 17:20:52,829 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6054545454545455 [2024-11-20 17:20:52,829 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 192 flow. Second operand 10 states and 333 transitions. [2024-11-20 17:20:52,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 167 transitions, 940 flow [2024-11-20 17:20:53,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 167 transitions, 898 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-11-20 17:20:53,144 INFO L231 Difference]: Finished difference. Result has 75 places, 55 transitions, 265 flow [2024-11-20 17:20:53,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=265, PETRI_PLACES=75, PETRI_TRANSITIONS=55} [2024-11-20 17:20:53,145 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 13 predicate places. [2024-11-20 17:20:53,145 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 55 transitions, 265 flow [2024-11-20 17:20:53,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:20:53,145 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:53,145 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] [2024-11-20 17:20:53,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:20:53,146 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:20:53,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:53,146 INFO L85 PathProgramCache]: Analyzing trace with hash 2118105380, now seen corresponding path program 1 times [2024-11-20 17:20:53,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:53,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302527860] [2024-11-20 17:20:53,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:53,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:53,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:53,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:53,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302527860] [2024-11-20 17:20:53,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302527860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:53,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:53,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:20:53,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785040530] [2024-11-20 17:20:53,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:53,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:20:53,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:53,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:20:53,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:20:53,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 55 [2024-11-20 17:20:53,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 55 transitions, 265 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:20:53,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:53,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 55 [2024-11-20 17:20:53,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:20:56,687 INFO L124 PetriNetUnfolderBase]: 20126/29655 cut-off events. [2024-11-20 17:20:56,687 INFO L125 PetriNetUnfolderBase]: For 47817/48360 co-relation queries the response was YES. [2024-11-20 17:20:56,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91122 conditions, 29655 events. 20126/29655 cut-off events. For 47817/48360 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 207814 event pairs, 4034 based on Foata normal form. 705/30282 useless extension candidates. Maximal degree in co-relation 91102. Up to 12197 conditions per place. [2024-11-20 17:20:56,901 INFO L140 encePairwiseOnDemand]: 45/55 looper letters, 72 selfloop transitions, 8 changer transitions 82/175 dead transitions. [2024-11-20 17:20:56,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 175 transitions, 1099 flow [2024-11-20 17:20:56,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 17:20:56,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 17:20:56,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 328 transitions. [2024-11-20 17:20:56,903 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5963636363636363 [2024-11-20 17:20:56,903 INFO L175 Difference]: Start difference. First operand has 75 places, 55 transitions, 265 flow. Second operand 10 states and 328 transitions. [2024-11-20 17:20:56,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 175 transitions, 1099 flow [2024-11-20 17:20:57,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 175 transitions, 1045 flow, removed 27 selfloop flow, removed 4 redundant places. [2024-11-20 17:20:57,896 INFO L231 Difference]: Finished difference. Result has 83 places, 59 transitions, 344 flow [2024-11-20 17:20:57,897 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=344, PETRI_PLACES=83, PETRI_TRANSITIONS=59} [2024-11-20 17:20:57,897 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 21 predicate places. [2024-11-20 17:20:57,898 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 59 transitions, 344 flow [2024-11-20 17:20:57,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:20:57,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:20:57,898 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:20:57,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 17:20:57,899 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:20:57,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:20:57,899 INFO L85 PathProgramCache]: Analyzing trace with hash 577817066, now seen corresponding path program 1 times [2024-11-20 17:20:57,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:20:57,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001392092] [2024-11-20 17:20:57,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:20:57,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:20:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:20:58,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:20:58,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:20:58,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001392092] [2024-11-20 17:20:58,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001392092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:20:58,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:20:58,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:20:58,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108786921] [2024-11-20 17:20:58,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:20:58,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:20:58,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:20:58,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:20:58,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:20:58,047 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-20 17:20:58,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 59 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:20:58,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:20:58,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-20 17:20:58,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:21:02,849 INFO L124 PetriNetUnfolderBase]: 30806/46067 cut-off events. [2024-11-20 17:21:02,849 INFO L125 PetriNetUnfolderBase]: For 45697/52509 co-relation queries the response was YES. [2024-11-20 17:21:03,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115221 conditions, 46067 events. 30806/46067 cut-off events. For 45697/52509 co-relation queries the response was YES. Maximal size of possible extension queue 1739. Compared 337917 event pairs, 5525 based on Foata normal form. 2165/46804 useless extension candidates. Maximal degree in co-relation 115194. Up to 24444 conditions per place. [2024-11-20 17:21:03,432 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 60 selfloop transitions, 6 changer transitions 0/95 dead transitions. [2024-11-20 17:21:03,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 95 transitions, 606 flow [2024-11-20 17:21:03,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:21:03,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:21:03,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-11-20 17:21:03,434 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-11-20 17:21:03,434 INFO L175 Difference]: Start difference. First operand has 83 places, 59 transitions, 344 flow. Second operand 4 states and 146 transitions. [2024-11-20 17:21:03,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 95 transitions, 606 flow [2024-11-20 17:21:04,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 95 transitions, 585 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-20 17:21:04,064 INFO L231 Difference]: Finished difference. Result has 77 places, 64 transitions, 369 flow [2024-11-20 17:21:04,064 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=369, PETRI_PLACES=77, PETRI_TRANSITIONS=64} [2024-11-20 17:21:04,065 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-11-20 17:21:04,065 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 64 transitions, 369 flow [2024-11-20 17:21:04,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:21:04,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:21:04,066 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:21:04,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 17:21:04,066 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:21:04,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:21:04,067 INFO L85 PathProgramCache]: Analyzing trace with hash -142378508, now seen corresponding path program 1 times [2024-11-20 17:21:04,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:21:04,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217619455] [2024-11-20 17:21:04,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:21:04,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:21:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:21:04,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:21:04,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:21:04,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217619455] [2024-11-20 17:21:04,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217619455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:21:04,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:21:04,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:21:04,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711748455] [2024-11-20 17:21:04,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:21:04,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:21:04,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:21:04,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:21:04,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:21:04,229 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-20 17:21:04,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 64 transitions, 369 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:21:04,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:21:04,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-20 17:21:04,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:21:08,014 INFO L124 PetriNetUnfolderBase]: 24729/37327 cut-off events. [2024-11-20 17:21:08,014 INFO L125 PetriNetUnfolderBase]: For 29905/34283 co-relation queries the response was YES. [2024-11-20 17:21:08,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100382 conditions, 37327 events. 24729/37327 cut-off events. For 29905/34283 co-relation queries the response was YES. Maximal size of possible extension queue 1402. Compared 267798 event pairs, 3302 based on Foata normal form. 1653/37726 useless extension candidates. Maximal degree in co-relation 100356. Up to 12793 conditions per place. [2024-11-20 17:21:08,243 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 78 selfloop transitions, 10 changer transitions 0/117 dead transitions. [2024-11-20 17:21:08,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 117 transitions, 758 flow [2024-11-20 17:21:08,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:21:08,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:21:08,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 187 transitions. [2024-11-20 17:21:08,244 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.68 [2024-11-20 17:21:08,245 INFO L175 Difference]: Start difference. First operand has 77 places, 64 transitions, 369 flow. Second operand 5 states and 187 transitions. [2024-11-20 17:21:08,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 117 transitions, 758 flow [2024-11-20 17:21:08,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 117 transitions, 731 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-20 17:21:08,267 INFO L231 Difference]: Finished difference. Result has 78 places, 69 transitions, 422 flow [2024-11-20 17:21:08,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=422, PETRI_PLACES=78, PETRI_TRANSITIONS=69} [2024-11-20 17:21:08,268 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 16 predicate places. [2024-11-20 17:21:08,268 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 69 transitions, 422 flow [2024-11-20 17:21:08,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:21:08,269 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:21:08,269 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] [2024-11-20 17:21:08,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 17:21:08,270 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:21:08,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:21:08,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1758793303, now seen corresponding path program 1 times [2024-11-20 17:21:08,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:21:08,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997240603] [2024-11-20 17:21:08,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:21:08,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:21:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:21:08,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:21:08,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:21:08,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997240603] [2024-11-20 17:21:08,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997240603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:21:08,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:21:08,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 17:21:08,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018763701] [2024-11-20 17:21:08,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:21:08,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:21:08,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:21:08,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:21:08,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:21:08,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-20 17:21:08,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 422 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:21:08,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:21:08,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-20 17:21:08,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:21:11,709 INFO L124 PetriNetUnfolderBase]: 19617/29403 cut-off events. [2024-11-20 17:21:11,710 INFO L125 PetriNetUnfolderBase]: For 42642/46014 co-relation queries the response was YES. [2024-11-20 17:21:11,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89105 conditions, 29403 events. 19617/29403 cut-off events. For 42642/46014 co-relation queries the response was YES. Maximal size of possible extension queue 1259. Compared 203073 event pairs, 2492 based on Foata normal form. 985/29195 useless extension candidates. Maximal degree in co-relation 89080. Up to 9942 conditions per place. [2024-11-20 17:21:11,939 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 92 selfloop transitions, 14 changer transitions 0/135 dead transitions. [2024-11-20 17:21:11,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 135 transitions, 889 flow [2024-11-20 17:21:11,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:21:11,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:21:11,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 226 transitions. [2024-11-20 17:21:11,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6848484848484848 [2024-11-20 17:21:11,941 INFO L175 Difference]: Start difference. First operand has 78 places, 69 transitions, 422 flow. Second operand 6 states and 226 transitions. [2024-11-20 17:21:11,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 135 transitions, 889 flow [2024-11-20 17:21:11,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 135 transitions, 873 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-20 17:21:11,965 INFO L231 Difference]: Finished difference. Result has 83 places, 74 transitions, 492 flow [2024-11-20 17:21:11,967 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=492, PETRI_PLACES=83, PETRI_TRANSITIONS=74} [2024-11-20 17:21:11,968 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 21 predicate places. [2024-11-20 17:21:11,968 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 74 transitions, 492 flow [2024-11-20 17:21:11,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:21:11,969 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:21:11,969 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] [2024-11-20 17:21:11,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 17:21:11,969 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:21:11,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:21:11,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1120689524, now seen corresponding path program 1 times [2024-11-20 17:21:11,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:21:11,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824224905] [2024-11-20 17:21:11,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:21:11,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:21:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:21:13,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:21:13,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:21:13,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824224905] [2024-11-20 17:21:13,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824224905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:21:13,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:21:13,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 17:21:13,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93439700] [2024-11-20 17:21:13,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:21:13,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 17:21:13,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:21:13,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 17:21:13,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 17:21:13,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 55 [2024-11-20 17:21:13,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 74 transitions, 492 flow. Second operand has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:21:13,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:21:13,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 55 [2024-11-20 17:21:13,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:21:16,727 INFO L124 PetriNetUnfolderBase]: 18319/32418 cut-off events. [2024-11-20 17:21:16,728 INFO L125 PetriNetUnfolderBase]: For 54875/62387 co-relation queries the response was YES. [2024-11-20 17:21:16,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96444 conditions, 32418 events. 18319/32418 cut-off events. For 54875/62387 co-relation queries the response was YES. Maximal size of possible extension queue 1949. Compared 304086 event pairs, 6250 based on Foata normal form. 868/29937 useless extension candidates. Maximal degree in co-relation 96417. Up to 12662 conditions per place. [2024-11-20 17:21:16,992 INFO L140 encePairwiseOnDemand]: 45/55 looper letters, 69 selfloop transitions, 17 changer transitions 18/152 dead transitions. [2024-11-20 17:21:16,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 152 transitions, 982 flow [2024-11-20 17:21:16,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 17:21:16,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-20 17:21:16,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 315 transitions. [2024-11-20 17:21:16,994 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-11-20 17:21:16,994 INFO L175 Difference]: Start difference. First operand has 83 places, 74 transitions, 492 flow. Second operand 9 states and 315 transitions. [2024-11-20 17:21:16,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 152 transitions, 982 flow [2024-11-20 17:21:17,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 152 transitions, 951 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-20 17:21:17,318 INFO L231 Difference]: Finished difference. Result has 94 places, 91 transitions, 623 flow [2024-11-20 17:21:17,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=623, PETRI_PLACES=94, PETRI_TRANSITIONS=91} [2024-11-20 17:21:17,319 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 32 predicate places. [2024-11-20 17:21:17,319 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 91 transitions, 623 flow [2024-11-20 17:21:17,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:21:17,320 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:21:17,320 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] [2024-11-20 17:21:17,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 17:21:17,320 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-20 17:21:17,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:21:17,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1408915426, now seen corresponding path program 2 times [2024-11-20 17:21:17,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:21:17,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207369357] [2024-11-20 17:21:17,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:21:17,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:21:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:21:17,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:21:17,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:21:17,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207369357] [2024-11-20 17:21:17,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207369357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:21:17,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:21:17,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 17:21:17,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063082538] [2024-11-20 17:21:17,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:21:17,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 17:21:17,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:21:17,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 17:21:17,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 17:21:17,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-11-20 17:21:17,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 91 transitions, 623 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 17:21:17,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:21:17,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-11-20 17:21:17,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand