./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/mix021.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix021.opt.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 576d0750cd121d18ae295ddde1dd1649436f79f5ff3834655e4b6c15fd1260db --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:32:05,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:32:05,507 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:32:05,511 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:32:05,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:32:05,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:32:05,533 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:32:05,533 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:32:05,534 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:32:05,534 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:32:05,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:32:05,535 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:32:05,536 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:32:05,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:32:05,536 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:32:05,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:32:05,537 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:32:05,538 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:32:05,538 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:32:05,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:32:05,539 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:32:05,539 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:32:05,540 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:32:05,540 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:32:05,540 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:32:05,541 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:32:05,541 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:32:05,542 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:32:05,542 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:32:05,542 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:32:05,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:32:05,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:32:05,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:32:05,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:32:05,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:32:05,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:32:05,545 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:32:05,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:32:05,545 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:32:05,546 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:32:05,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:32:05,547 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:32:05,547 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 576d0750cd121d18ae295ddde1dd1649436f79f5ff3834655e4b6c15fd1260db [2024-10-11 19:32:05,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:32:05,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:32:05,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:32:05,819 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:32:05,819 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:32:05,821 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix021.opt.i [2024-10-11 19:32:07,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:32:07,516 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:32:07,516 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix021.opt.i [2024-10-11 19:32:07,530 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/87452f138/1a99725bdb604ca09eb7c8ed408ec04d/FLAG9fe02d483 [2024-10-11 19:32:07,547 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/87452f138/1a99725bdb604ca09eb7c8ed408ec04d [2024-10-11 19:32:07,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:32:07,553 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:32:07,556 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:32:07,557 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:32:07,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:32:07,563 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:32:07" (1/1) ... [2024-10-11 19:32:07,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f62dbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:07, skipping insertion in model container [2024-10-11 19:32:07,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:32:07" (1/1) ... [2024-10-11 19:32:07,617 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:32:08,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:32:08,108 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:32:08,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:32:08,209 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:32:08,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:08 WrapperNode [2024-10-11 19:32:08,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:32:08,211 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:32:08,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:32:08,212 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:32:08,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:08" (1/1) ... [2024-10-11 19:32:08,241 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:08" (1/1) ... [2024-10-11 19:32:08,279 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 153 [2024-10-11 19:32:08,280 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:32:08,281 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:32:08,281 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:32:08,281 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:32:08,296 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:08" (1/1) ... [2024-10-11 19:32:08,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:08" (1/1) ... [2024-10-11 19:32:08,300 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:08" (1/1) ... [2024-10-11 19:32:08,327 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]. [2024-10-11 19:32:08,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:08" (1/1) ... [2024-10-11 19:32:08,328 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:08" (1/1) ... [2024-10-11 19:32:08,341 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:08" (1/1) ... [2024-10-11 19:32:08,344 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:08" (1/1) ... [2024-10-11 19:32:08,346 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:08" (1/1) ... [2024-10-11 19:32:08,348 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:08" (1/1) ... [2024-10-11 19:32:08,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:32:08,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:32:08,356 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:32:08,356 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:32:08,357 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:08" (1/1) ... [2024-10-11 19:32:08,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:32:08,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:32:08,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:32:08,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:32:08,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:32:08,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:32:08,448 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 19:32:08,448 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 19:32:08,448 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 19:32:08,448 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 19:32:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 19:32:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 19:32:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-11 19:32:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-11 19:32:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:32:08,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:32:08,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:32:08,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:32:08,453 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:32:08,620 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:32:08,623 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:32:08,960 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:32:08,961 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:32:09,279 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:32:09,280 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:32:09,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:32:09 BoogieIcfgContainer [2024-10-11 19:32:09,280 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:32:09,283 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:32:09,283 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:32:09,287 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:32:09,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:32:07" (1/3) ... [2024-10-11 19:32:09,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8f503f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:32:09, skipping insertion in model container [2024-10-11 19:32:09,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:32:08" (2/3) ... [2024-10-11 19:32:09,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8f503f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:32:09, skipping insertion in model container [2024-10-11 19:32:09,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:32:09" (3/3) ... [2024-10-11 19:32:09,291 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021.opt.i [2024-10-11 19:32:09,309 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:32:09,309 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-11 19:32:09,310 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:32:09,373 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:32:09,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-10-11 19:32:09,448 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-10-11 19:32:09,449 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:32:09,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2024-10-11 19:32:09,455 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-10-11 19:32:09,460 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-10-11 19:32:09,473 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:32:09,481 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;@59029841, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:32:09,482 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-11 19:32:09,493 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:32:09,493 INFO L124 PetriNetUnfolderBase]: 0/27 cut-off events. [2024-10-11 19:32:09,493 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:32:09,494 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:09,495 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:32:09,495 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:09,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:09,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1284070994, now seen corresponding path program 1 times [2024-10-11 19:32:09,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:09,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558192159] [2024-10-11 19:32:09,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:09,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:10,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:10,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:10,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558192159] [2024-10-11 19:32:10,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558192159] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:10,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:10,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:32:10,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643240945] [2024-10-11 19:32:10,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:10,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:32:10,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:10,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:32:10,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:32:10,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 54 [2024-10-11 19:32:10,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2024-10-11 19:32:10,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:10,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 54 [2024-10-11 19:32:10,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:10,630 INFO L124 PetriNetUnfolderBase]: 1175/1999 cut-off events. [2024-10-11 19:32:10,631 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:32:10,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3735 conditions, 1999 events. 1175/1999 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 14278 event pairs, 199 based on Foata normal form. 120/2082 useless extension candidates. Maximal degree in co-relation 3723. Up to 1361 conditions per place. [2024-10-11 19:32:10,655 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 30 selfloop transitions, 2 changer transitions 2/57 dead transitions. [2024-10-11 19:32:10,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 194 flow [2024-10-11 19:32:10,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:32:10,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:32:10,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-10-11 19:32:10,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7407407407407407 [2024-10-11 19:32:10,670 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 120 transitions. [2024-10-11 19:32:10,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 194 flow [2024-10-11 19:32:10,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 57 transitions, 190 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 19:32:10,679 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-10-11 19:32:10,683 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2024-10-11 19:32:10,686 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-10-11 19:32:10,688 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-10-11 19:32:10,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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) [2024-10-11 19:32:10,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:10,689 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:32:10,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:32:10,690 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:10,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:10,691 INFO L85 PathProgramCache]: Analyzing trace with hash -946896188, now seen corresponding path program 1 times [2024-10-11 19:32:10,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:10,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637634840] [2024-10-11 19:32:10,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:10,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:10,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:10,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:10,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637634840] [2024-10-11 19:32:10,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637634840] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:10,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:10,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:32:10,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736743047] [2024-10-11 19:32:10,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:10,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:32:10,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:10,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:32:10,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:32:10,777 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 54 [2024-10-11 19:32:10,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-10-11 19:32:10,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:10,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 54 [2024-10-11 19:32:10,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:11,107 INFO L124 PetriNetUnfolderBase]: 1027/1863 cut-off events. [2024-10-11 19:32:11,108 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-10-11 19:32:11,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3473 conditions, 1863 events. 1027/1863 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 13899 event pairs, 1027 based on Foata normal form. 60/1862 useless extension candidates. Maximal degree in co-relation 3463. Up to 1484 conditions per place. [2024-10-11 19:32:11,124 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 20 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-10-11 19:32:11,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 144 flow [2024-10-11 19:32:11,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:32:11,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:32:11,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2024-10-11 19:32:11,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6234567901234568 [2024-10-11 19:32:11,129 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 101 transitions. [2024-10-11 19:32:11,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 144 flow [2024-10-11 19:32:11,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 140 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:32:11,133 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-10-11 19:32:11,133 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-10-11 19:32:11,134 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-10-11 19:32:11,134 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-10-11 19:32:11,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-10-11 19:32:11,135 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:11,135 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:32:11,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:32:11,137 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:11,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:11,141 INFO L85 PathProgramCache]: Analyzing trace with hash -946894839, now seen corresponding path program 1 times [2024-10-11 19:32:11,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:11,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113583176] [2024-10-11 19:32:11,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:11,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:11,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:11,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:11,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113583176] [2024-10-11 19:32:11,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113583176] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:11,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:11,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:32:11,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341076484] [2024-10-11 19:32:11,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:11,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:32:11,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:11,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:32:11,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:32:11,483 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-11 19:32:11,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-10-11 19:32:11,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:11,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-11 19:32:11,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:14,801 INFO L124 PetriNetUnfolderBase]: 15819/24097 cut-off events. [2024-10-11 19:32:14,802 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:32:14,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45919 conditions, 24097 events. 15819/24097 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1424. Compared 187615 event pairs, 3682 based on Foata normal form. 0/23341 useless extension candidates. Maximal degree in co-relation 45913. Up to 8109 conditions per place. [2024-10-11 19:32:14,968 INFO L140 encePairwiseOnDemand]: 42/54 looper letters, 41 selfloop transitions, 8 changer transitions 85/149 dead transitions. [2024-10-11 19:32:14,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 149 transitions, 580 flow [2024-10-11 19:32:14,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:32:14,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:32:14,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 316 transitions. [2024-10-11 19:32:14,973 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6502057613168725 [2024-10-11 19:32:14,974 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 9 states and 316 transitions. [2024-10-11 19:32:14,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 149 transitions, 580 flow [2024-10-11 19:32:14,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 149 transitions, 579 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:32:14,980 INFO L231 Difference]: Finished difference. Result has 69 places, 49 transitions, 205 flow [2024-10-11 19:32:14,980 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=205, PETRI_PLACES=69, PETRI_TRANSITIONS=49} [2024-10-11 19:32:14,981 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-10-11 19:32:14,981 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 49 transitions, 205 flow [2024-10-11 19:32:14,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-10-11 19:32:14,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:14,982 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:32:14,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:32:14,982 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:14,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:14,983 INFO L85 PathProgramCache]: Analyzing trace with hash 611012490, now seen corresponding path program 1 times [2024-10-11 19:32:14,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:14,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418820045] [2024-10-11 19:32:14,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:14,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:15,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:15,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:15,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418820045] [2024-10-11 19:32:15,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418820045] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:15,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:15,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:32:15,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348935266] [2024-10-11 19:32:15,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:15,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:32:15,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:15,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:32:15,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:32:15,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-11 19:32:15,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 49 transitions, 205 flow. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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) [2024-10-11 19:32:15,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:15,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-11 19:32:15,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:17,631 INFO L124 PetriNetUnfolderBase]: 11171/18027 cut-off events. [2024-10-11 19:32:17,631 INFO L125 PetriNetUnfolderBase]: For 29599/29605 co-relation queries the response was YES. [2024-10-11 19:32:17,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55256 conditions, 18027 events. 11171/18027 cut-off events. For 29599/29605 co-relation queries the response was YES. Maximal size of possible extension queue 1026. Compared 143133 event pairs, 1903 based on Foata normal form. 486/18369 useless extension candidates. Maximal degree in co-relation 55241. Up to 5673 conditions per place. [2024-10-11 19:32:17,752 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 51 selfloop transitions, 9 changer transitions 80/155 dead transitions. [2024-10-11 19:32:17,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 155 transitions, 1067 flow [2024-10-11 19:32:17,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:32:17,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:32:17,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 325 transitions. [2024-10-11 19:32:17,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6018518518518519 [2024-10-11 19:32:17,755 INFO L175 Difference]: Start difference. First operand has 69 places, 49 transitions, 205 flow. Second operand 10 states and 325 transitions. [2024-10-11 19:32:17,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 155 transitions, 1067 flow [2024-10-11 19:32:18,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 155 transitions, 921 flow, removed 36 selfloop flow, removed 4 redundant places. [2024-10-11 19:32:18,058 INFO L231 Difference]: Finished difference. Result has 76 places, 54 transitions, 275 flow [2024-10-11 19:32:18,059 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=275, PETRI_PLACES=76, PETRI_TRANSITIONS=54} [2024-10-11 19:32:18,060 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 15 predicate places. [2024-10-11 19:32:18,061 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 54 transitions, 275 flow [2024-10-11 19:32:18,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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) [2024-10-11 19:32:18,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:18,061 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] [2024-10-11 19:32:18,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:32:18,062 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:18,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:18,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1986768389, now seen corresponding path program 1 times [2024-10-11 19:32:18,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:18,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196176334] [2024-10-11 19:32:18,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:18,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:18,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:18,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:18,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196176334] [2024-10-11 19:32:18,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196176334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:18,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:18,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:32:18,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868072743] [2024-10-11 19:32:18,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:18,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:32:18,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:18,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:32:18,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:32:18,322 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-10-11 19:32:18,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 54 transitions, 275 flow. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 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) [2024-10-11 19:32:18,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:18,323 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-10-11 19:32:18,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:20,360 INFO L124 PetriNetUnfolderBase]: 8027/14132 cut-off events. [2024-10-11 19:32:20,361 INFO L125 PetriNetUnfolderBase]: For 35070/35808 co-relation queries the response was YES. [2024-10-11 19:32:20,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43791 conditions, 14132 events. 8027/14132 cut-off events. For 35070/35808 co-relation queries the response was YES. Maximal size of possible extension queue 840. Compared 119584 event pairs, 3086 based on Foata normal form. 737/14490 useless extension candidates. Maximal degree in co-relation 43769. Up to 8359 conditions per place. [2024-10-11 19:32:20,468 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 46 selfloop transitions, 6 changer transitions 37/112 dead transitions. [2024-10-11 19:32:20,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 112 transitions, 763 flow [2024-10-11 19:32:20,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:32:20,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:32:20,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 235 transitions. [2024-10-11 19:32:20,470 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6216931216931217 [2024-10-11 19:32:20,470 INFO L175 Difference]: Start difference. First operand has 76 places, 54 transitions, 275 flow. Second operand 7 states and 235 transitions. [2024-10-11 19:32:20,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 112 transitions, 763 flow [2024-10-11 19:32:20,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 112 transitions, 734 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-10-11 19:32:20,565 INFO L231 Difference]: Finished difference. Result has 78 places, 59 transitions, 350 flow [2024-10-11 19:32:20,565 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=350, PETRI_PLACES=78, PETRI_TRANSITIONS=59} [2024-10-11 19:32:20,568 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 17 predicate places. [2024-10-11 19:32:20,568 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 59 transitions, 350 flow [2024-10-11 19:32:20,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 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) [2024-10-11 19:32:20,569 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:20,569 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] [2024-10-11 19:32:20,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:32:20,569 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:20,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:20,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1795497770, now seen corresponding path program 1 times [2024-10-11 19:32:20,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:20,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218593280] [2024-10-11 19:32:20,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:20,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:20,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:20,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:20,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:20,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218593280] [2024-10-11 19:32:20,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218593280] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:20,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:20,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:32:20,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34772797] [2024-10-11 19:32:20,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:20,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:32:20,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:20,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:32:20,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:32:20,859 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-11 19:32:20,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 59 transitions, 350 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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) [2024-10-11 19:32:20,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:20,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-11 19:32:20,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:22,576 INFO L124 PetriNetUnfolderBase]: 9380/15358 cut-off events. [2024-10-11 19:32:22,576 INFO L125 PetriNetUnfolderBase]: For 40738/40744 co-relation queries the response was YES. [2024-10-11 19:32:22,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52132 conditions, 15358 events. 9380/15358 cut-off events. For 40738/40744 co-relation queries the response was YES. Maximal size of possible extension queue 833. Compared 121013 event pairs, 1583 based on Foata normal form. 304/15567 useless extension candidates. Maximal degree in co-relation 52106. Up to 6032 conditions per place. [2024-10-11 19:32:22,702 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 64 selfloop transitions, 21 changer transitions 68/168 dead transitions. [2024-10-11 19:32:22,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 168 transitions, 1340 flow [2024-10-11 19:32:22,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:32:22,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:32:22,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 329 transitions. [2024-10-11 19:32:22,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6092592592592593 [2024-10-11 19:32:22,706 INFO L175 Difference]: Start difference. First operand has 78 places, 59 transitions, 350 flow. Second operand 10 states and 329 transitions. [2024-10-11 19:32:22,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 168 transitions, 1340 flow [2024-10-11 19:32:22,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 168 transitions, 1270 flow, removed 31 selfloop flow, removed 7 redundant places. [2024-10-11 19:32:22,785 INFO L231 Difference]: Finished difference. Result has 85 places, 72 transitions, 547 flow [2024-10-11 19:32:22,786 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=547, PETRI_PLACES=85, PETRI_TRANSITIONS=72} [2024-10-11 19:32:22,786 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 24 predicate places. [2024-10-11 19:32:22,787 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 72 transitions, 547 flow [2024-10-11 19:32:22,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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) [2024-10-11 19:32:22,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:22,787 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] [2024-10-11 19:32:22,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:32:22,787 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:22,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:22,788 INFO L85 PathProgramCache]: Analyzing trace with hash 635129945, now seen corresponding path program 1 times [2024-10-11 19:32:22,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:22,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065579428] [2024-10-11 19:32:22,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:22,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:22,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:22,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:22,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065579428] [2024-10-11 19:32:22,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065579428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:22,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:22,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:32:22,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990636261] [2024-10-11 19:32:22,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:22,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:32:22,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:22,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:32:23,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:32:23,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-10-11 19:32:23,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 72 transitions, 547 flow. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:32:23,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:23,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-10-11 19:32:23,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:25,206 INFO L124 PetriNetUnfolderBase]: 9135/15846 cut-off events. [2024-10-11 19:32:25,207 INFO L125 PetriNetUnfolderBase]: For 63873/64403 co-relation queries the response was YES. [2024-10-11 19:32:25,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54892 conditions, 15846 events. 9135/15846 cut-off events. For 63873/64403 co-relation queries the response was YES. Maximal size of possible extension queue 930. Compared 138882 event pairs, 3487 based on Foata normal form. 393/15502 useless extension candidates. Maximal degree in co-relation 54862. Up to 5926 conditions per place. [2024-10-11 19:32:25,315 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 47 selfloop transitions, 8 changer transitions 38/127 dead transitions. [2024-10-11 19:32:25,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 127 transitions, 1053 flow [2024-10-11 19:32:25,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:32:25,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:32:25,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2024-10-11 19:32:25,317 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-10-11 19:32:25,317 INFO L175 Difference]: Start difference. First operand has 85 places, 72 transitions, 547 flow. Second operand 7 states and 234 transitions. [2024-10-11 19:32:25,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 127 transitions, 1053 flow [2024-10-11 19:32:25,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 127 transitions, 1015 flow, removed 19 selfloop flow, removed 2 redundant places. [2024-10-11 19:32:25,493 INFO L231 Difference]: Finished difference. Result has 88 places, 71 transitions, 553 flow [2024-10-11 19:32:25,493 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=553, PETRI_PLACES=88, PETRI_TRANSITIONS=71} [2024-10-11 19:32:25,494 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 27 predicate places. [2024-10-11 19:32:25,494 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 71 transitions, 553 flow [2024-10-11 19:32:25,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:32:25,494 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:25,494 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:32:25,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:32:25,495 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:25,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:25,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1099689021, now seen corresponding path program 1 times [2024-10-11 19:32:25,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:25,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786286026] [2024-10-11 19:32:25,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:25,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:25,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:25,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:25,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786286026] [2024-10-11 19:32:25,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786286026] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:25,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:25,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:32:25,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137794775] [2024-10-11 19:32:25,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:25,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:32:25,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:25,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:32:25,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:32:25,855 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 54 [2024-10-11 19:32:25,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 71 transitions, 553 flow. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 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) [2024-10-11 19:32:25,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:25,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 54 [2024-10-11 19:32:25,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:30,356 INFO L124 PetriNetUnfolderBase]: 26833/40530 cut-off events. [2024-10-11 19:32:30,356 INFO L125 PetriNetUnfolderBase]: For 92577/96551 co-relation queries the response was YES. [2024-10-11 19:32:30,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114853 conditions, 40530 events. 26833/40530 cut-off events. For 92577/96551 co-relation queries the response was YES. Maximal size of possible extension queue 1933. Compared 316276 event pairs, 4918 based on Foata normal form. 2137/41599 useless extension candidates. Maximal degree in co-relation 114819. Up to 22384 conditions per place. [2024-10-11 19:32:31,013 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 60 selfloop transitions, 6 changer transitions 0/107 dead transitions. [2024-10-11 19:32:31,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 107 transitions, 861 flow [2024-10-11 19:32:31,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:32:31,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:32:31,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 144 transitions. [2024-10-11 19:32:31,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-11 19:32:31,015 INFO L175 Difference]: Start difference. First operand has 88 places, 71 transitions, 553 flow. Second operand 4 states and 144 transitions. [2024-10-11 19:32:31,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 107 transitions, 861 flow [2024-10-11 19:32:31,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 107 transitions, 833 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-10-11 19:32:31,170 INFO L231 Difference]: Finished difference. Result has 81 places, 76 transitions, 571 flow [2024-10-11 19:32:31,170 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=525, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=571, PETRI_PLACES=81, PETRI_TRANSITIONS=76} [2024-10-11 19:32:31,171 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 20 predicate places. [2024-10-11 19:32:31,171 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 76 transitions, 571 flow [2024-10-11 19:32:31,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 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) [2024-10-11 19:32:31,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:31,172 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] [2024-10-11 19:32:31,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 19:32:31,172 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:31,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:31,173 INFO L85 PathProgramCache]: Analyzing trace with hash -392211991, now seen corresponding path program 1 times [2024-10-11 19:32:31,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:31,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250018469] [2024-10-11 19:32:31,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:31,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:31,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:31,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:31,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250018469] [2024-10-11 19:32:31,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250018469] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:31,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:31,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:32:31,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975036391] [2024-10-11 19:32:31,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:31,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:32:31,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:31,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:32:31,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:32:31,464 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-10-11 19:32:31,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 76 transitions, 571 flow. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2024-10-11 19:32:31,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:31,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-10-11 19:32:31,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:36,889 INFO L124 PetriNetUnfolderBase]: 29613/47884 cut-off events. [2024-10-11 19:32:36,889 INFO L125 PetriNetUnfolderBase]: For 135192/136636 co-relation queries the response was YES. [2024-10-11 19:32:37,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155829 conditions, 47884 events. 29613/47884 cut-off events. For 135192/136636 co-relation queries the response was YES. Maximal size of possible extension queue 2539. Compared 429313 event pairs, 11597 based on Foata normal form. 705/44034 useless extension candidates. Maximal degree in co-relation 155799. Up to 18900 conditions per place. [2024-10-11 19:32:37,320 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 107 selfloop transitions, 36 changer transitions 15/178 dead transitions. [2024-10-11 19:32:37,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 178 transitions, 1500 flow [2024-10-11 19:32:37,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:32:37,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:32:37,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 326 transitions. [2024-10-11 19:32:37,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6037037037037037 [2024-10-11 19:32:37,322 INFO L175 Difference]: Start difference. First operand has 81 places, 76 transitions, 571 flow. Second operand 10 states and 326 transitions. [2024-10-11 19:32:37,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 178 transitions, 1500 flow [2024-10-11 19:32:37,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 178 transitions, 1478 flow, removed 10 selfloop flow, removed 2 redundant places. [2024-10-11 19:32:37,795 INFO L231 Difference]: Finished difference. Result has 96 places, 91 transitions, 879 flow [2024-10-11 19:32:37,795 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=563, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=879, PETRI_PLACES=96, PETRI_TRANSITIONS=91} [2024-10-11 19:32:37,795 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 35 predicate places. [2024-10-11 19:32:37,796 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 91 transitions, 879 flow [2024-10-11 19:32:37,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 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) [2024-10-11 19:32:37,796 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:37,796 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:32:37,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 19:32:37,797 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:37,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:37,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1529967931, now seen corresponding path program 1 times [2024-10-11 19:32:37,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:37,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955241396] [2024-10-11 19:32:37,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:37,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:38,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:38,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:38,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955241396] [2024-10-11 19:32:38,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955241396] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:38,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:38,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:32:38,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720525502] [2024-10-11 19:32:38,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:38,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:32:38,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:38,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:32:38,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:32:38,093 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 54 [2024-10-11 19:32:38,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 879 flow. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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) [2024-10-11 19:32:38,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:38,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 54 [2024-10-11 19:32:38,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:43,842 INFO L124 PetriNetUnfolderBase]: 33969/51078 cut-off events. [2024-10-11 19:32:43,843 INFO L125 PetriNetUnfolderBase]: For 116483/123961 co-relation queries the response was YES. [2024-10-11 19:32:44,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158085 conditions, 51078 events. 33969/51078 cut-off events. For 116483/123961 co-relation queries the response was YES. Maximal size of possible extension queue 2676. Compared 404327 event pairs, 3624 based on Foata normal form. 2830/52766 useless extension candidates. Maximal degree in co-relation 158047. Up to 21761 conditions per place. [2024-10-11 19:32:44,284 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 85 selfloop transitions, 10 changer transitions 8/148 dead transitions. [2024-10-11 19:32:44,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 148 transitions, 1443 flow [2024-10-11 19:32:44,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:32:44,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:32:44,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 184 transitions. [2024-10-11 19:32:44,286 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6814814814814815 [2024-10-11 19:32:44,286 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 879 flow. Second operand 5 states and 184 transitions. [2024-10-11 19:32:44,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 148 transitions, 1443 flow [2024-10-11 19:32:44,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 148 transitions, 1409 flow, removed 17 selfloop flow, removed 0 redundant places. [2024-10-11 19:32:44,631 INFO L231 Difference]: Finished difference. Result has 102 places, 88 transitions, 812 flow [2024-10-11 19:32:44,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=845, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=812, PETRI_PLACES=102, PETRI_TRANSITIONS=88} [2024-10-11 19:32:44,632 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 41 predicate places. [2024-10-11 19:32:44,632 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 88 transitions, 812 flow [2024-10-11 19:32:44,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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) [2024-10-11 19:32:44,633 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:44,633 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] [2024-10-11 19:32:44,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 19:32:44,633 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:44,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:44,633 INFO L85 PathProgramCache]: Analyzing trace with hash 153393957, now seen corresponding path program 1 times [2024-10-11 19:32:44,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:44,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868902105] [2024-10-11 19:32:44,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:44,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:45,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:45,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:45,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868902105] [2024-10-11 19:32:45,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868902105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:45,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:45,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:32:45,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799192063] [2024-10-11 19:32:45,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:45,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:32:45,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:45,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:32:45,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:32:45,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 54 [2024-10-11 19:32:45,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 88 transitions, 812 flow. Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 6 states have internal predecessors, (151), 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) [2024-10-11 19:32:45,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:45,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 54 [2024-10-11 19:32:45,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:32:49,670 INFO L124 PetriNetUnfolderBase]: 26369/39682 cut-off events. [2024-10-11 19:32:49,671 INFO L125 PetriNetUnfolderBase]: For 103112/110806 co-relation queries the response was YES. [2024-10-11 19:32:50,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136397 conditions, 39682 events. 26369/39682 cut-off events. For 103112/110806 co-relation queries the response was YES. Maximal size of possible extension queue 2211. Compared 305870 event pairs, 1420 based on Foata normal form. 2314/41010 useless extension candidates. Maximal degree in co-relation 136355. Up to 12860 conditions per place. [2024-10-11 19:32:50,070 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 91 selfloop transitions, 14 changer transitions 7/156 dead transitions. [2024-10-11 19:32:50,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 156 transitions, 1460 flow [2024-10-11 19:32:50,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:32:50,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:32:50,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 222 transitions. [2024-10-11 19:32:50,072 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6851851851851852 [2024-10-11 19:32:50,072 INFO L175 Difference]: Start difference. First operand has 102 places, 88 transitions, 812 flow. Second operand 6 states and 222 transitions. [2024-10-11 19:32:50,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 156 transitions, 1460 flow [2024-10-11 19:32:50,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 156 transitions, 1432 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-10-11 19:32:50,137 INFO L231 Difference]: Finished difference. Result has 101 places, 92 transitions, 854 flow [2024-10-11 19:32:50,138 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=854, PETRI_PLACES=101, PETRI_TRANSITIONS=92} [2024-10-11 19:32:50,138 INFO L277 CegarLoopForPetriNet]: 61 programPoint places, 40 predicate places. [2024-10-11 19:32:50,138 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 92 transitions, 854 flow [2024-10-11 19:32:50,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 6 states have internal predecessors, (151), 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) [2024-10-11 19:32:50,138 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:32:50,139 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] [2024-10-11 19:32:50,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 19:32:50,139 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:32:50,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:32:50,140 INFO L85 PathProgramCache]: Analyzing trace with hash 2085780159, now seen corresponding path program 1 times [2024-10-11 19:32:50,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:32:50,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028001695] [2024-10-11 19:32:50,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:32:50,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:32:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:32:50,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:32:50,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:32:50,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028001695] [2024-10-11 19:32:50,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028001695] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:32:50,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:32:50,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:32:50,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996033488] [2024-10-11 19:32:50,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:32:50,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:32:50,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:32:50,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:32:50,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:32:50,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 54 [2024-10-11 19:32:50,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 92 transitions, 854 flow. Second operand has 7 states, 7 states have (on average 25.0) internal successors, (175), 7 states have internal predecessors, (175), 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) [2024-10-11 19:32:50,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:32:50,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 54 [2024-10-11 19:32:50,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand