./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix021.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix021.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 576d0750cd121d18ae295ddde1dd1649436f79f5ff3834655e4b6c15fd1260db --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:04:23,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:04:23,558 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 16:04:23,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:04:23,564 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:04:23,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:04:23,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:04:23,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:04:23,590 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:04:23,591 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:04:23,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:04:23,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:04:23,592 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:04:23,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:04:23,592 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:04:23,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:04:23,593 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 16:04:23,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:04:23,594 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 16:04:23,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:04:23,595 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 16:04:23,595 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 16:04:23,596 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 16:04:23,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:04:23,596 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 16:04:23,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:04:23,597 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:04:23,597 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 16:04:23,597 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:04:23,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:04:23,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:04:23,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:04:23,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:04:23,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:04:23,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:04:23,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:04:23,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:04:23,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:04:23,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:04:23,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:04:23,600 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:04:23,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:04:23,600 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 576d0750cd121d18ae295ddde1dd1649436f79f5ff3834655e4b6c15fd1260db [2024-11-12 16:04:23,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:04:23,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:04:23,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:04:23,850 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:04:23,851 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:04:23,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix021.opt.i [2024-11-12 16:04:25,232 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:04:25,445 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:04:25,446 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix021.opt.i [2024-11-12 16:04:25,460 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/225bde070/021011483f7b4d3899ec8a018f071455/FLAGff140f92c [2024-11-12 16:04:25,475 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/225bde070/021011483f7b4d3899ec8a018f071455 [2024-11-12 16:04:25,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:04:25,481 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:04:25,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:04:25,484 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:04:25,489 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:04:25,490 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:04:25" (1/1) ... [2024-11-12 16:04:25,491 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54fb3b14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:25, skipping insertion in model container [2024-11-12 16:04:25,493 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:04:25" (1/1) ... [2024-11-12 16:04:25,554 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:04:25,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:04:25,904 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:04:25,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:04:26,010 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:04:26,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:26 WrapperNode [2024-11-12 16:04:26,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:04:26,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:04:26,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:04:26,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:04:26,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:26" (1/1) ... [2024-11-12 16:04:26,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:26" (1/1) ... [2024-11-12 16:04:26,065 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 153 [2024-11-12 16:04:26,065 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:04:26,066 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:04:26,066 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:04:26,067 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:04:26,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:26" (1/1) ... [2024-11-12 16:04:26,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:26" (1/1) ... [2024-11-12 16:04:26,096 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:26" (1/1) ... [2024-11-12 16:04:26,112 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-12 16:04:26,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:26" (1/1) ... [2024-11-12 16:04:26,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:26" (1/1) ... [2024-11-12 16:04:26,119 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:26" (1/1) ... [2024-11-12 16:04:26,121 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:26" (1/1) ... [2024-11-12 16:04:26,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:26" (1/1) ... [2024-11-12 16:04:26,124 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:26" (1/1) ... [2024-11-12 16:04:26,126 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:04:26,127 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:04:26,127 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:04:26,127 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:04:26,128 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:26" (1/1) ... [2024-11-12 16:04:26,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:04:26,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:04:26,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 16:04:26,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 16:04:26,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 16:04:26,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 16:04:26,211 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-12 16:04:26,211 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-12 16:04:26,211 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-12 16:04:26,211 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-12 16:04:26,211 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-12 16:04:26,211 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-12 16:04:26,211 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-12 16:04:26,211 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-12 16:04:26,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 16:04:26,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 16:04:26,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:04:26,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:04:26,213 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 16:04:26,321 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:04:26,322 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:04:26,619 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 16:04:26,619 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:04:26,731 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:04:26,731 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 16:04:26,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:04:26 BoogieIcfgContainer [2024-11-12 16:04:26,732 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:04:26,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:04:26,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:04:26,735 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:04:26,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:04:25" (1/3) ... [2024-11-12 16:04:26,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2b84ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:04:26, skipping insertion in model container [2024-11-12 16:04:26,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:04:26" (2/3) ... [2024-11-12 16:04:26,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2b84ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:04:26, skipping insertion in model container [2024-11-12 16:04:26,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:04:26" (3/3) ... [2024-11-12 16:04:26,737 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021.opt.i [2024-11-12 16:04:26,748 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:04:26,748 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-12 16:04:26,749 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 16:04:26,786 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 16:04:26,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2024-11-12 16:04:26,830 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2024-11-12 16:04:26,830 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:04:26,832 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. [2024-11-12 16:04:26,833 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2024-11-12 16:04:26,835 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2024-11-12 16:04:26,840 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:04:26,844 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;@625e960, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:04:26,844 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-12 16:04:26,852 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:04:26,852 INFO L124 PetriNetUnfolderBase]: 0/27 cut-off events. [2024-11-12 16:04:26,852 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:04:26,852 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:04:26,852 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:04:26,853 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:04:26,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:04:26,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1284070994, now seen corresponding path program 1 times [2024-11-12 16:04:26,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:04:26,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814132889] [2024-11-12 16:04:26,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:04:26,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:04:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:04:27,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:04:27,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:04:27,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814132889] [2024-11-12 16:04:27,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814132889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:04:27,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:04:27,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:04:27,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932574627] [2024-11-12 16:04:27,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:04:27,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:04:27,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:04:27,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:04:27,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:04:27,302 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 54 [2024-11-12 16:04:27,304 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) [2024-11-12 16:04:27,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:04:27,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 54 [2024-11-12 16:04:27,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:04:27,778 INFO L124 PetriNetUnfolderBase]: 1175/1999 cut-off events. [2024-11-12 16:04:27,779 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:04:27,786 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. [2024-11-12 16:04:27,795 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 30 selfloop transitions, 2 changer transitions 2/57 dead transitions. [2024-11-12 16:04:27,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 57 transitions, 194 flow [2024-11-12 16:04:27,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:04:27,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:04:27,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 120 transitions. [2024-11-12 16:04:27,806 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7407407407407407 [2024-11-12 16:04:27,808 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 120 transitions. [2024-11-12 16:04:27,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 57 transitions, 194 flow [2024-11-12 16:04:27,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 57 transitions, 190 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-12 16:04:27,813 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2024-11-12 16:04:27,815 INFO L262 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} [2024-11-12 16:04:27,818 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2024-11-12 16:04:27,818 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2024-11-12 16:04:27,818 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) [2024-11-12 16:04:27,818 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:04:27,818 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:04:27,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:04:27,819 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:04:27,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:04:27,819 INFO L85 PathProgramCache]: Analyzing trace with hash -946896188, now seen corresponding path program 1 times [2024-11-12 16:04:27,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:04:27,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40303750] [2024-11-12 16:04:27,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:04:27,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:04:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:04:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:04:27,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:04:27,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40303750] [2024-11-12 16:04:27,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40303750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:04:27,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:04:27,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:04:27,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689585041] [2024-11-12 16:04:27,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:04:27,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:04:27,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:04:27,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:04:27,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:04:27,897 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 54 [2024-11-12 16:04:27,898 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) [2024-11-12 16:04:27,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:04:27,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 54 [2024-11-12 16:04:27,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:04:28,122 INFO L124 PetriNetUnfolderBase]: 1027/1863 cut-off events. [2024-11-12 16:04:28,122 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2024-11-12 16:04:28,126 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. [2024-11-12 16:04:28,132 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 20 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2024-11-12 16:04:28,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 144 flow [2024-11-12 16:04:28,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:04:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:04:28,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2024-11-12 16:04:28,134 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6234567901234568 [2024-11-12 16:04:28,134 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 101 transitions. [2024-11-12 16:04:28,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 144 flow [2024-11-12 16:04:28,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 140 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:04:28,136 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2024-11-12 16:04:28,137 INFO L262 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} [2024-11-12 16:04:28,137 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-11-12 16:04:28,138 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2024-11-12 16:04:28,138 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) [2024-11-12 16:04:28,138 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:04:28,138 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:04:28,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:04:28,139 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:04:28,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:04:28,143 INFO L85 PathProgramCache]: Analyzing trace with hash -946894839, now seen corresponding path program 1 times [2024-11-12 16:04:28,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:04:28,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068153495] [2024-11-12 16:04:28,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:04:28,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:04:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:04:28,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:04:28,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:04:28,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068153495] [2024-11-12 16:04:28,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068153495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:04:28,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:04:28,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:04:28,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207499665] [2024-11-12 16:04:28,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:04:28,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:04:28,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:04:28,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:04:28,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:04:28,426 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-11-12 16:04:28,426 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) [2024-11-12 16:04:28,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:04:28,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-11-12 16:04:28,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:04:30,774 INFO L124 PetriNetUnfolderBase]: 15819/24097 cut-off events. [2024-11-12 16:04:30,775 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:04:30,818 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. [2024-11-12 16:04:30,888 INFO L140 encePairwiseOnDemand]: 42/54 looper letters, 41 selfloop transitions, 8 changer transitions 85/149 dead transitions. [2024-11-12 16:04:30,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 149 transitions, 580 flow [2024-11-12 16:04:30,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 16:04:30,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 16:04:30,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 316 transitions. [2024-11-12 16:04:30,891 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6502057613168725 [2024-11-12 16:04:30,891 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 9 states and 316 transitions. [2024-11-12 16:04:30,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 149 transitions, 580 flow [2024-11-12 16:04:30,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 149 transitions, 579 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:04:30,897 INFO L231 Difference]: Finished difference. Result has 69 places, 49 transitions, 205 flow [2024-11-12 16:04:30,897 INFO L262 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} [2024-11-12 16:04:30,898 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 8 predicate places. [2024-11-12 16:04:30,900 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 49 transitions, 205 flow [2024-11-12 16:04:30,900 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) [2024-11-12 16:04:30,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:04:30,901 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:04:30,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 16:04:30,901 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:04:30,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:04:30,902 INFO L85 PathProgramCache]: Analyzing trace with hash 611012490, now seen corresponding path program 1 times [2024-11-12 16:04:30,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:04:30,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409146388] [2024-11-12 16:04:30,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:04:30,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:04:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:04:31,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:04:31,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:04:31,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409146388] [2024-11-12 16:04:31,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409146388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:04:31,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:04:31,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:04:31,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083426584] [2024-11-12 16:04:31,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:04:31,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:04:31,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:04:31,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:04:31,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:04:31,082 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-11-12 16:04:31,083 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) [2024-11-12 16:04:31,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:04:31,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-11-12 16:04:31,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:04:33,032 INFO L124 PetriNetUnfolderBase]: 11171/18027 cut-off events. [2024-11-12 16:04:33,033 INFO L125 PetriNetUnfolderBase]: For 29599/29605 co-relation queries the response was YES. [2024-11-12 16:04:33,072 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. [2024-11-12 16:04:33,127 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 51 selfloop transitions, 9 changer transitions 80/155 dead transitions. [2024-11-12 16:04:33,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 155 transitions, 1067 flow [2024-11-12 16:04:33,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 16:04:33,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 16:04:33,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 325 transitions. [2024-11-12 16:04:33,131 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6018518518518519 [2024-11-12 16:04:33,131 INFO L175 Difference]: Start difference. First operand has 69 places, 49 transitions, 205 flow. Second operand 10 states and 325 transitions. [2024-11-12 16:04:33,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 155 transitions, 1067 flow [2024-11-12 16:04:33,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 155 transitions, 921 flow, removed 36 selfloop flow, removed 4 redundant places. [2024-11-12 16:04:33,236 INFO L231 Difference]: Finished difference. Result has 76 places, 54 transitions, 275 flow [2024-11-12 16:04:33,237 INFO L262 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} [2024-11-12 16:04:33,238 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 15 predicate places. [2024-11-12 16:04:33,239 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 54 transitions, 275 flow [2024-11-12 16:04:33,239 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) [2024-11-12 16:04:33,239 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:04:33,239 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:04:33,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 16:04:33,240 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:04:33,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:04:33,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1986768389, now seen corresponding path program 1 times [2024-11-12 16:04:33,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:04:33,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099637545] [2024-11-12 16:04:33,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:04:33,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:04:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:04:33,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:04:33,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:04:33,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099637545] [2024-11-12 16:04:33,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099637545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:04:33,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:04:33,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:04:33,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156278902] [2024-11-12 16:04:33,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:04:33,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:04:33,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:04:33,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:04:33,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:04:33,436 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-11-12 16:04:33,437 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) [2024-11-12 16:04:33,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:04:33,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-11-12 16:04:33,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:04:35,143 INFO L124 PetriNetUnfolderBase]: 8027/14132 cut-off events. [2024-11-12 16:04:35,143 INFO L125 PetriNetUnfolderBase]: For 35070/35808 co-relation queries the response was YES. [2024-11-12 16:04:35,198 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. [2024-11-12 16:04:35,243 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 46 selfloop transitions, 6 changer transitions 37/112 dead transitions. [2024-11-12 16:04:35,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 112 transitions, 763 flow [2024-11-12 16:04:35,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 16:04:35,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 16:04:35,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 235 transitions. [2024-11-12 16:04:35,245 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6216931216931217 [2024-11-12 16:04:35,245 INFO L175 Difference]: Start difference. First operand has 76 places, 54 transitions, 275 flow. Second operand 7 states and 235 transitions. [2024-11-12 16:04:35,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 112 transitions, 763 flow [2024-11-12 16:04:35,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 112 transitions, 734 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-11-12 16:04:35,313 INFO L231 Difference]: Finished difference. Result has 78 places, 59 transitions, 350 flow [2024-11-12 16:04:35,314 INFO L262 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} [2024-11-12 16:04:35,314 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 17 predicate places. [2024-11-12 16:04:35,314 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 59 transitions, 350 flow [2024-11-12 16:04:35,315 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) [2024-11-12 16:04:35,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:04:35,315 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:04:35,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 16:04:35,315 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:04:35,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:04:35,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1795497770, now seen corresponding path program 1 times [2024-11-12 16:04:35,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:04:35,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202367173] [2024-11-12 16:04:35,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:04:35,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:04:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:04:35,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:04:35,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:04:35,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202367173] [2024-11-12 16:04:35,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202367173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:04:35,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:04:35,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:04:35,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138041804] [2024-11-12 16:04:35,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:04:35,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:04:35,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:04:35,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:04:35,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:04:35,544 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-11-12 16:04:35,544 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) [2024-11-12 16:04:35,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:04:35,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-11-12 16:04:35,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:04:37,207 INFO L124 PetriNetUnfolderBase]: 9380/15358 cut-off events. [2024-11-12 16:04:37,207 INFO L125 PetriNetUnfolderBase]: For 40738/40744 co-relation queries the response was YES. [2024-11-12 16:04:37,245 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. [2024-11-12 16:04:37,289 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 64 selfloop transitions, 21 changer transitions 68/168 dead transitions. [2024-11-12 16:04:37,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 168 transitions, 1340 flow [2024-11-12 16:04:37,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 16:04:37,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 16:04:37,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 329 transitions. [2024-11-12 16:04:37,290 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6092592592592593 [2024-11-12 16:04:37,290 INFO L175 Difference]: Start difference. First operand has 78 places, 59 transitions, 350 flow. Second operand 10 states and 329 transitions. [2024-11-12 16:04:37,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 168 transitions, 1340 flow [2024-11-12 16:04:37,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 168 transitions, 1270 flow, removed 31 selfloop flow, removed 7 redundant places. [2024-11-12 16:04:37,362 INFO L231 Difference]: Finished difference. Result has 85 places, 72 transitions, 547 flow [2024-11-12 16:04:37,362 INFO L262 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} [2024-11-12 16:04:37,363 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 24 predicate places. [2024-11-12 16:04:37,363 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 72 transitions, 547 flow [2024-11-12 16:04:37,363 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) [2024-11-12 16:04:37,363 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:04:37,364 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:04:37,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 16:04:37,364 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:04:37,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:04:37,364 INFO L85 PathProgramCache]: Analyzing trace with hash 635129945, now seen corresponding path program 1 times [2024-11-12 16:04:37,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:04:37,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032997109] [2024-11-12 16:04:37,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:04:37,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:04:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:04:37,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:04:37,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:04:37,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032997109] [2024-11-12 16:04:37,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032997109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:04:37,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:04:37,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:04:37,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065992159] [2024-11-12 16:04:37,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:04:37,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:04:37,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:04:37,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:04:37,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:04:37,537 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 54 [2024-11-12 16:04:37,538 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) [2024-11-12 16:04:37,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:04:37,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 54 [2024-11-12 16:04:37,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:04:39,413 INFO L124 PetriNetUnfolderBase]: 9135/15846 cut-off events. [2024-11-12 16:04:39,413 INFO L125 PetriNetUnfolderBase]: For 63873/64403 co-relation queries the response was YES. [2024-11-12 16:04:39,473 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. [2024-11-12 16:04:39,511 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 47 selfloop transitions, 8 changer transitions 38/127 dead transitions. [2024-11-12 16:04:39,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 127 transitions, 1053 flow [2024-11-12 16:04:39,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 16:04:39,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 16:04:39,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2024-11-12 16:04:39,512 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-11-12 16:04:39,512 INFO L175 Difference]: Start difference. First operand has 85 places, 72 transitions, 547 flow. Second operand 7 states and 234 transitions. [2024-11-12 16:04:39,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 127 transitions, 1053 flow [2024-11-12 16:04:39,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 127 transitions, 1015 flow, removed 19 selfloop flow, removed 2 redundant places. [2024-11-12 16:04:39,666 INFO L231 Difference]: Finished difference. Result has 88 places, 71 transitions, 553 flow [2024-11-12 16:04:39,666 INFO L262 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} [2024-11-12 16:04:39,667 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 27 predicate places. [2024-11-12 16:04:39,667 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 71 transitions, 553 flow [2024-11-12 16:04:39,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:04:39,667 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:04:39,668 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:04:39,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 16:04:39,668 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:04:39,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:04:39,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1099689021, now seen corresponding path program 1 times [2024-11-12 16:04:39,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:04:39,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830145881] [2024-11-12 16:04:39,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:04:39,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:04:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:04:39,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:04:39,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:04:39,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830145881] [2024-11-12 16:04:39,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830145881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:04:39,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:04:39,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:04:39,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862819688] [2024-11-12 16:04:39,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:04:39,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:04:39,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:04:39,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:04:39,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:04:39,830 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 54 [2024-11-12 16:04:39,830 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) [2024-11-12 16:04:39,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:04:39,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 54 [2024-11-12 16:04:39,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:04:43,929 INFO L124 PetriNetUnfolderBase]: 26833/40530 cut-off events. [2024-11-12 16:04:43,929 INFO L125 PetriNetUnfolderBase]: For 92577/96551 co-relation queries the response was YES. [2024-11-12 16:04:44,291 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. [2024-11-12 16:04:44,385 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 60 selfloop transitions, 6 changer transitions 0/107 dead transitions. [2024-11-12 16:04:44,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 107 transitions, 861 flow [2024-11-12 16:04:44,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:04:44,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:04:44,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 144 transitions. [2024-11-12 16:04:44,386 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-12 16:04:44,388 INFO L175 Difference]: Start difference. First operand has 88 places, 71 transitions, 553 flow. Second operand 4 states and 144 transitions. [2024-11-12 16:04:44,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 107 transitions, 861 flow [2024-11-12 16:04:44,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 107 transitions, 833 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-11-12 16:04:44,551 INFO L231 Difference]: Finished difference. Result has 81 places, 76 transitions, 571 flow [2024-11-12 16:04:44,551 INFO L262 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} [2024-11-12 16:04:44,553 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 20 predicate places. [2024-11-12 16:04:44,554 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 76 transitions, 571 flow [2024-11-12 16:04:44,556 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) [2024-11-12 16:04:44,556 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:04:44,557 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:04:44,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 16:04:44,557 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:04:44,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:04:44,557 INFO L85 PathProgramCache]: Analyzing trace with hash -392211991, now seen corresponding path program 1 times [2024-11-12 16:04:44,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:04:44,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851695154] [2024-11-12 16:04:44,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:04:44,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:04:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:04:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:04:44,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:04:44,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851695154] [2024-11-12 16:04:44,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851695154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:04:44,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:04:44,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 16:04:44,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51955470] [2024-11-12 16:04:44,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:04:44,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:04:44,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:04:44,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:04:44,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:04:44,902 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-11-12 16:04:44,902 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) [2024-11-12 16:04:44,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:04:44,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-11-12 16:04:44,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:04:50,093 INFO L124 PetriNetUnfolderBase]: 29613/47884 cut-off events. [2024-11-12 16:04:50,093 INFO L125 PetriNetUnfolderBase]: For 135192/136636 co-relation queries the response was YES. [2024-11-12 16:04:50,458 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. [2024-11-12 16:04:50,824 INFO L140 encePairwiseOnDemand]: 43/54 looper letters, 107 selfloop transitions, 36 changer transitions 15/178 dead transitions. [2024-11-12 16:04:50,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 178 transitions, 1500 flow [2024-11-12 16:04:50,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 16:04:50,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 16:04:50,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 326 transitions. [2024-11-12 16:04:50,828 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6037037037037037 [2024-11-12 16:04:50,828 INFO L175 Difference]: Start difference. First operand has 81 places, 76 transitions, 571 flow. Second operand 10 states and 326 transitions. [2024-11-12 16:04:50,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 178 transitions, 1500 flow [2024-11-12 16:04:51,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 178 transitions, 1478 flow, removed 10 selfloop flow, removed 2 redundant places. [2024-11-12 16:04:51,057 INFO L231 Difference]: Finished difference. Result has 96 places, 91 transitions, 879 flow [2024-11-12 16:04:51,057 INFO L262 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} [2024-11-12 16:04:51,057 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 35 predicate places. [2024-11-12 16:04:51,057 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 91 transitions, 879 flow [2024-11-12 16:04:51,058 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) [2024-11-12 16:04:51,058 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:04:51,058 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:04:51,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 16:04:51,058 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:04:51,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:04:51,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1529967931, now seen corresponding path program 1 times [2024-11-12 16:04:51,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:04:51,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584242983] [2024-11-12 16:04:51,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:04:51,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:04:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:04:51,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:04:51,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:04:51,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584242983] [2024-11-12 16:04:51,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584242983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:04:51,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:04:51,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:04:51,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747133892] [2024-11-12 16:04:51,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:04:51,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:04:51,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:04:51,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:04:51,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:04:51,211 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 54 [2024-11-12 16:04:51,211 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) [2024-11-12 16:04:51,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:04:51,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 54 [2024-11-12 16:04:51,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:04:56,823 INFO L124 PetriNetUnfolderBase]: 33969/51078 cut-off events. [2024-11-12 16:04:56,824 INFO L125 PetriNetUnfolderBase]: For 116483/123961 co-relation queries the response was YES. [2024-11-12 16:04:57,630 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. [2024-11-12 16:04:57,738 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 85 selfloop transitions, 10 changer transitions 8/148 dead transitions. [2024-11-12 16:04:57,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 148 transitions, 1443 flow [2024-11-12 16:04:57,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:04:57,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 16:04:57,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 184 transitions. [2024-11-12 16:04:57,740 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6814814814814815 [2024-11-12 16:04:57,740 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 879 flow. Second operand 5 states and 184 transitions. [2024-11-12 16:04:57,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 148 transitions, 1443 flow [2024-11-12 16:04:58,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 148 transitions, 1409 flow, removed 17 selfloop flow, removed 0 redundant places. [2024-11-12 16:04:58,122 INFO L231 Difference]: Finished difference. Result has 102 places, 88 transitions, 812 flow [2024-11-12 16:04:58,122 INFO L262 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} [2024-11-12 16:04:58,123 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 41 predicate places. [2024-11-12 16:04:58,123 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 88 transitions, 812 flow [2024-11-12 16:04:58,123 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) [2024-11-12 16:04:58,124 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:04:58,124 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:04:58,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 16:04:58,124 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-12 16:04:58,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:04:58,125 INFO L85 PathProgramCache]: Analyzing trace with hash 153393957, now seen corresponding path program 1 times [2024-11-12 16:04:58,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:04:58,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249442913] [2024-11-12 16:04:58,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:04:58,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:04:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:04:58,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:04:58,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:04:58,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249442913] [2024-11-12 16:04:58,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249442913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:04:58,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:04:58,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:04:58,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973468797] [2024-11-12 16:04:58,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:04:58,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:04:58,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:04:58,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:04:58,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:04:58,368 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 54 [2024-11-12 16:04:58,369 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) [2024-11-12 16:04:58,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:04:58,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 54 [2024-11-12 16:04:58,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand