./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-misc-3-extended.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d 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/weaver/parallel-misc-3-extended.wvr.c -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 8cea87724a542982ff884c708bfc22195aa1904db80300e5b965108c3d86cb2f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:35:25,076 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:35:25,156 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:35:25,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:35:25,164 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:35:25,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:35:25,208 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:35:25,209 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:35:25,209 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:35:25,211 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:35:25,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:35:25,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:35:25,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:35:25,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:35:25,214 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:35:25,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:35:25,215 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:35:25,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:35:25,216 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:35:25,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:35:25,216 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:35:25,220 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:35:25,220 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:35:25,220 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:35:25,221 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:35:25,221 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:35:25,221 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:35:25,221 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:35:25,222 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:35:25,222 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:35:25,222 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:35:25,223 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:35:25,223 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:35:25,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:35:25,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:35:25,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:35:25,224 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:35:25,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:35:25,224 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:35:25,225 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:35:25,225 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:35:25,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:35:25,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cea87724a542982ff884c708bfc22195aa1904db80300e5b965108c3d86cb2f [2024-11-17 03:35:25,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:35:25,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:35:25,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:35:25,524 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:35:25,524 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:35:25,525 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-misc-3-extended.wvr.c [2024-11-17 03:35:26,992 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:35:27,187 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:35:27,188 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-3-extended.wvr.c [2024-11-17 03:35:27,201 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e657bec/28b343dfed0d415f8500403b67ffa8d9/FLAGb49c820cd [2024-11-17 03:35:27,564 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77e657bec/28b343dfed0d415f8500403b67ffa8d9 [2024-11-17 03:35:27,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:35:27,568 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:35:27,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:35:27,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:35:27,575 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:35:27,576 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:35:27" (1/1) ... [2024-11-17 03:35:27,577 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0dd81f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:27, skipping insertion in model container [2024-11-17 03:35:27,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:35:27" (1/1) ... [2024-11-17 03:35:27,598 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:35:27,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:35:27,829 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:35:27,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:35:27,871 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:35:27,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:27 WrapperNode [2024-11-17 03:35:27,873 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:35:27,874 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:35:27,874 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:35:27,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:35:27,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:27" (1/1) ... [2024-11-17 03:35:27,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:27" (1/1) ... [2024-11-17 03:35:27,924 INFO L138 Inliner]: procedures = 19, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2024-11-17 03:35:27,924 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:35:27,925 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:35:27,925 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:35:27,925 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:35:27,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:27" (1/1) ... [2024-11-17 03:35:27,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:27" (1/1) ... [2024-11-17 03:35:27,938 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:27" (1/1) ... [2024-11-17 03:35:27,952 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]. [2024-11-17 03:35:27,952 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:27" (1/1) ... [2024-11-17 03:35:27,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:27" (1/1) ... [2024-11-17 03:35:27,958 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:27" (1/1) ... [2024-11-17 03:35:27,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:27" (1/1) ... [2024-11-17 03:35:27,959 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:27" (1/1) ... [2024-11-17 03:35:27,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:27" (1/1) ... [2024-11-17 03:35:27,962 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:35:27,963 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:35:27,963 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:35:27,963 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:35:27,964 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:27" (1/1) ... [2024-11-17 03:35:27,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:35:27,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:35:28,004 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) [2024-11-17 03:35:28,008 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 [2024-11-17 03:35:28,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:35:28,054 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 03:35:28,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 03:35:28,055 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 03:35:28,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 03:35:28,055 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-17 03:35:28,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-17 03:35:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:35:28,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:35:28,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:35:28,058 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:35:28,179 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:35:28,182 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:35:28,399 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:35:28,400 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:35:28,568 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:35:28,570 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:35:28,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:35:28 BoogieIcfgContainer [2024-11-17 03:35:28,570 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:35:28,573 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:35:28,574 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:35:28,577 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:35:28,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:35:27" (1/3) ... [2024-11-17 03:35:28,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31771a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:35:28, skipping insertion in model container [2024-11-17 03:35:28,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:35:27" (2/3) ... [2024-11-17 03:35:28,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31771a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:35:28, skipping insertion in model container [2024-11-17 03:35:28,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:35:28" (3/3) ... [2024-11-17 03:35:28,580 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-3-extended.wvr.c [2024-11-17 03:35:28,597 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:35:28,597 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 03:35:28,597 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:35:28,651 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-17 03:35:28,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 53 transitions, 127 flow [2024-11-17 03:35:28,730 INFO L124 PetriNetUnfolderBase]: 9/50 cut-off events. [2024-11-17 03:35:28,733 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-17 03:35:28,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 9/50 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 111 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2024-11-17 03:35:28,739 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 53 transitions, 127 flow [2024-11-17 03:35:28,744 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 49 transitions, 116 flow [2024-11-17 03:35:28,758 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:35:28,768 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;@68bbf16b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:35:28,768 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-17 03:35:28,783 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:35:28,784 INFO L124 PetriNetUnfolderBase]: 9/46 cut-off events. [2024-11-17 03:35:28,784 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-17 03:35:28,784 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:28,785 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:28,786 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:35:28,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:28,795 INFO L85 PathProgramCache]: Analyzing trace with hash 874521292, now seen corresponding path program 1 times [2024-11-17 03:35:28,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:28,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346909083] [2024-11-17 03:35:28,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:28,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:28,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:35:28,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:28,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346909083] [2024-11-17 03:35:28,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346909083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:35:28,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:35:28,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:35:28,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112909416] [2024-11-17 03:35:28,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:35:28,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 03:35:28,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:28,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 03:35:28,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 03:35:28,981 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-11-17 03:35:28,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 49 transitions, 116 flow. Second operand has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:28,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:28,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-11-17 03:35:28,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:35:29,298 INFO L124 PetriNetUnfolderBase]: 826/1611 cut-off events. [2024-11-17 03:35:29,298 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-11-17 03:35:29,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2730 conditions, 1611 events. 826/1611 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 10284 event pairs, 341 based on Foata normal form. 258/1423 useless extension candidates. Maximal degree in co-relation 2507. Up to 1042 conditions per place. [2024-11-17 03:35:29,321 INFO L140 encePairwiseOnDemand]: 49/53 looper letters, 23 selfloop transitions, 0 changer transitions 0/44 dead transitions. [2024-11-17 03:35:29,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 44 transitions, 152 flow [2024-11-17 03:35:29,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 03:35:29,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-17 03:35:29,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 77 transitions. [2024-11-17 03:35:29,333 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7264150943396226 [2024-11-17 03:35:29,335 INFO L175 Difference]: Start difference. First operand has 50 places, 49 transitions, 116 flow. Second operand 2 states and 77 transitions. [2024-11-17 03:35:29,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 44 transitions, 152 flow [2024-11-17 03:35:29,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 44 transitions, 140 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-17 03:35:29,347 INFO L231 Difference]: Finished difference. Result has 43 places, 44 transitions, 94 flow [2024-11-17 03:35:29,350 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=94, PETRI_PLACES=43, PETRI_TRANSITIONS=44} [2024-11-17 03:35:29,355 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, -7 predicate places. [2024-11-17 03:35:29,356 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 44 transitions, 94 flow [2024-11-17 03:35:29,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:29,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:29,356 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:29,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:35:29,357 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:35:29,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:29,358 INFO L85 PathProgramCache]: Analyzing trace with hash -543946088, now seen corresponding path program 1 times [2024-11-17 03:35:29,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:29,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472938139] [2024-11-17 03:35:29,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:29,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:29,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:35:29,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:29,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472938139] [2024-11-17 03:35:29,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472938139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:35:29,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:35:29,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:35:29,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248680400] [2024-11-17 03:35:29,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:35:29,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:35:29,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:29,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:35:29,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:35:29,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-11-17 03:35:29,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 44 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:29,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:29,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-11-17 03:35:29,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:35:29,730 INFO L124 PetriNetUnfolderBase]: 996/1845 cut-off events. [2024-11-17 03:35:29,731 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-17 03:35:29,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3122 conditions, 1845 events. 996/1845 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 11219 event pairs, 94 based on Foata normal form. 1/1531 useless extension candidates. Maximal degree in co-relation 3119. Up to 1177 conditions per place. [2024-11-17 03:35:29,742 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 32 selfloop transitions, 7 changer transitions 1/61 dead transitions. [2024-11-17 03:35:29,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 61 transitions, 213 flow [2024-11-17 03:35:29,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:35:29,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:35:29,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-17 03:35:29,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7295597484276729 [2024-11-17 03:35:29,745 INFO L175 Difference]: Start difference. First operand has 43 places, 44 transitions, 94 flow. Second operand 3 states and 116 transitions. [2024-11-17 03:35:29,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 61 transitions, 213 flow [2024-11-17 03:35:29,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 61 transitions, 213 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:35:29,750 INFO L231 Difference]: Finished difference. Result has 46 places, 50 transitions, 141 flow [2024-11-17 03:35:29,750 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=46, PETRI_TRANSITIONS=50} [2024-11-17 03:35:29,751 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, -4 predicate places. [2024-11-17 03:35:29,751 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 50 transitions, 141 flow [2024-11-17 03:35:29,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:29,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:29,752 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:29,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:35:29,753 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:35:29,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:29,754 INFO L85 PathProgramCache]: Analyzing trace with hash 120671339, now seen corresponding path program 1 times [2024-11-17 03:35:29,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:29,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010693639] [2024-11-17 03:35:29,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:29,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:29,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:29,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 03:35:29,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:29,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010693639] [2024-11-17 03:35:29,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010693639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:35:29,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:35:29,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:35:29,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677632568] [2024-11-17 03:35:29,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:35:29,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:35:29,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:29,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:35:29,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:35:29,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-11-17 03:35:29,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 50 transitions, 141 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:29,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:29,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-11-17 03:35:29,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:35:30,180 INFO L124 PetriNetUnfolderBase]: 1302/2224 cut-off events. [2024-11-17 03:35:30,181 INFO L125 PetriNetUnfolderBase]: For 642/642 co-relation queries the response was YES. [2024-11-17 03:35:30,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4722 conditions, 2224 events. 1302/2224 cut-off events. For 642/642 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 13217 event pairs, 146 based on Foata normal form. 48/1969 useless extension candidates. Maximal degree in co-relation 4717. Up to 1094 conditions per place. [2024-11-17 03:35:30,197 INFO L140 encePairwiseOnDemand]: 50/53 looper letters, 44 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2024-11-17 03:35:30,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 66 transitions, 279 flow [2024-11-17 03:35:30,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:35:30,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:35:30,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2024-11-17 03:35:30,200 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.710691823899371 [2024-11-17 03:35:30,201 INFO L175 Difference]: Start difference. First operand has 46 places, 50 transitions, 141 flow. Second operand 3 states and 113 transitions. [2024-11-17 03:35:30,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 66 transitions, 279 flow [2024-11-17 03:35:30,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 66 transitions, 270 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-17 03:35:30,204 INFO L231 Difference]: Finished difference. Result has 48 places, 51 transitions, 144 flow [2024-11-17 03:35:30,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=48, PETRI_TRANSITIONS=51} [2024-11-17 03:35:30,206 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, -2 predicate places. [2024-11-17 03:35:30,207 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 51 transitions, 144 flow [2024-11-17 03:35:30,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:30,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:30,208 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:30,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:35:30,209 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:35:30,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:30,210 INFO L85 PathProgramCache]: Analyzing trace with hash 399016283, now seen corresponding path program 1 times [2024-11-17 03:35:30,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:30,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70896506] [2024-11-17 03:35:30,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:30,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:30,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:35:30,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:30,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70896506] [2024-11-17 03:35:30,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70896506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:35:30,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:35:30,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:35:30,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971148871] [2024-11-17 03:35:30,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:35:30,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:35:30,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:30,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:35:30,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:35:30,322 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-11-17 03:35:30,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 51 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:30,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:30,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-11-17 03:35:30,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:35:30,594 INFO L124 PetriNetUnfolderBase]: 1435/2504 cut-off events. [2024-11-17 03:35:30,594 INFO L125 PetriNetUnfolderBase]: For 902/902 co-relation queries the response was YES. [2024-11-17 03:35:30,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5502 conditions, 2504 events. 1435/2504 cut-off events. For 902/902 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 15722 event pairs, 204 based on Foata normal form. 63/2163 useless extension candidates. Maximal degree in co-relation 5496. Up to 1335 conditions per place. [2024-11-17 03:35:30,614 INFO L140 encePairwiseOnDemand]: 50/53 looper letters, 45 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2024-11-17 03:35:30,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 67 transitions, 289 flow [2024-11-17 03:35:30,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:35:30,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:35:30,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 112 transitions. [2024-11-17 03:35:30,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7044025157232704 [2024-11-17 03:35:30,617 INFO L175 Difference]: Start difference. First operand has 48 places, 51 transitions, 144 flow. Second operand 3 states and 112 transitions. [2024-11-17 03:35:30,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 67 transitions, 289 flow [2024-11-17 03:35:30,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 67 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:35:30,621 INFO L231 Difference]: Finished difference. Result has 50 places, 52 transitions, 154 flow [2024-11-17 03:35:30,621 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=50, PETRI_TRANSITIONS=52} [2024-11-17 03:35:30,622 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 0 predicate places. [2024-11-17 03:35:30,622 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 52 transitions, 154 flow [2024-11-17 03:35:30,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:30,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:30,624 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:30,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:35:30,624 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:35:30,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:30,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1644302318, now seen corresponding path program 1 times [2024-11-17 03:35:30,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:30,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785957170] [2024-11-17 03:35:30,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:30,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:30,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 03:35:30,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:30,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785957170] [2024-11-17 03:35:30,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785957170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:35:30,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:35:30,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:35:30,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805487898] [2024-11-17 03:35:30,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:35:30,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:35:30,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:30,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:35:30,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:35:30,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-11-17 03:35:30,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 52 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:30,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:30,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-11-17 03:35:30,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:35:31,017 INFO L124 PetriNetUnfolderBase]: 1633/2808 cut-off events. [2024-11-17 03:35:31,018 INFO L125 PetriNetUnfolderBase]: For 1163/1163 co-relation queries the response was YES. [2024-11-17 03:35:31,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6542 conditions, 2808 events. 1633/2808 cut-off events. For 1163/1163 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 17793 event pairs, 321 based on Foata normal form. 55/2580 useless extension candidates. Maximal degree in co-relation 6535. Up to 1323 conditions per place. [2024-11-17 03:35:31,044 INFO L140 encePairwiseOnDemand]: 50/53 looper letters, 46 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2024-11-17 03:35:31,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 68 transitions, 305 flow [2024-11-17 03:35:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:35:31,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:35:31,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2024-11-17 03:35:31,046 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6981132075471698 [2024-11-17 03:35:31,047 INFO L175 Difference]: Start difference. First operand has 50 places, 52 transitions, 154 flow. Second operand 3 states and 111 transitions. [2024-11-17 03:35:31,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 68 transitions, 305 flow [2024-11-17 03:35:31,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 68 transitions, 302 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:35:31,051 INFO L231 Difference]: Finished difference. Result has 52 places, 53 transitions, 164 flow [2024-11-17 03:35:31,051 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=52, PETRI_TRANSITIONS=53} [2024-11-17 03:35:31,053 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2024-11-17 03:35:31,054 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 53 transitions, 164 flow [2024-11-17 03:35:31,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:31,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:31,055 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:31,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:35:31,055 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:35:31,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:31,056 INFO L85 PathProgramCache]: Analyzing trace with hash -2028608368, now seen corresponding path program 1 times [2024-11-17 03:35:31,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:31,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873883029] [2024-11-17 03:35:31,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:31,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-17 03:35:31,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:31,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873883029] [2024-11-17 03:35:31,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873883029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:35:31,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:35:31,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:35:31,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675928651] [2024-11-17 03:35:31,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:35:31,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:35:31,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:31,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:35:31,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:35:31,294 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 53 [2024-11-17 03:35:31,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 53 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:31,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:31,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 53 [2024-11-17 03:35:31,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:35:31,754 INFO L124 PetriNetUnfolderBase]: 3067/4763 cut-off events. [2024-11-17 03:35:31,754 INFO L125 PetriNetUnfolderBase]: For 1964/2112 co-relation queries the response was YES. [2024-11-17 03:35:31,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11720 conditions, 4763 events. 3067/4763 cut-off events. For 1964/2112 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 28186 event pairs, 492 based on Foata normal form. 66/4516 useless extension candidates. Maximal degree in co-relation 11712. Up to 1943 conditions per place. [2024-11-17 03:35:31,784 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 66 selfloop transitions, 5 changer transitions 0/89 dead transitions. [2024-11-17 03:35:31,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 89 transitions, 422 flow [2024-11-17 03:35:31,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:35:31,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:35:31,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 149 transitions. [2024-11-17 03:35:31,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7028301886792453 [2024-11-17 03:35:31,786 INFO L175 Difference]: Start difference. First operand has 52 places, 53 transitions, 164 flow. Second operand 4 states and 149 transitions. [2024-11-17 03:35:31,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 89 transitions, 422 flow [2024-11-17 03:35:31,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 89 transitions, 418 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:35:31,790 INFO L231 Difference]: Finished difference. Result has 56 places, 55 transitions, 194 flow [2024-11-17 03:35:31,791 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=194, PETRI_PLACES=56, PETRI_TRANSITIONS=55} [2024-11-17 03:35:31,791 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 6 predicate places. [2024-11-17 03:35:31,792 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 194 flow [2024-11-17 03:35:31,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:35:31,792 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:31,793 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:31,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:35:31,793 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:35:31,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:31,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1340590794, now seen corresponding path program 1 times [2024-11-17 03:35:31,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:31,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302340762] [2024-11-17 03:35:31,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:31,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:32,016 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 03:35:32,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:32,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302340762] [2024-11-17 03:35:32,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302340762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:35:32,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:35:32,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:35:32,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210442452] [2024-11-17 03:35:32,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:35:32,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:35:32,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:32,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:35:32,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:35:32,025 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 53 [2024-11-17 03:35:32,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2024-11-17 03:35:32,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:32,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 53 [2024-11-17 03:35:32,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:35:32,750 INFO L124 PetriNetUnfolderBase]: 4749/7148 cut-off events. [2024-11-17 03:35:32,753 INFO L125 PetriNetUnfolderBase]: For 5314/5714 co-relation queries the response was YES. [2024-11-17 03:35:32,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19171 conditions, 7148 events. 4749/7148 cut-off events. For 5314/5714 co-relation queries the response was YES. Maximal size of possible extension queue 320. Compared 44824 event pairs, 1044 based on Foata normal form. 115/6715 useless extension candidates. Maximal degree in co-relation 19161. Up to 2845 conditions per place. [2024-11-17 03:35:32,815 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 69 selfloop transitions, 5 changer transitions 0/93 dead transitions. [2024-11-17 03:35:32,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 93 transitions, 494 flow [2024-11-17 03:35:32,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:35:32,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:35:32,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 147 transitions. [2024-11-17 03:35:32,817 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6933962264150944 [2024-11-17 03:35:32,817 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 194 flow. Second operand 4 states and 147 transitions. [2024-11-17 03:35:32,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 93 transitions, 494 flow [2024-11-17 03:35:32,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 93 transitions, 488 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-17 03:35:32,823 INFO L231 Difference]: Finished difference. Result has 61 places, 57 transitions, 224 flow [2024-11-17 03:35:32,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=224, PETRI_PLACES=61, PETRI_TRANSITIONS=57} [2024-11-17 03:35:32,824 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 11 predicate places. [2024-11-17 03:35:32,824 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 57 transitions, 224 flow [2024-11-17 03:35:32,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2024-11-17 03:35:32,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:32,825 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:32,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:35:32,825 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:35:32,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:32,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1827022443, now seen corresponding path program 1 times [2024-11-17 03:35:32,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:32,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806134204] [2024-11-17 03:35:32,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:32,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:33,067 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-17 03:35:33,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:33,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806134204] [2024-11-17 03:35:33,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806134204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:35:33,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:35:33,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:35:33,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223848528] [2024-11-17 03:35:33,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:35:33,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:35:33,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:33,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:35:33,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:35:33,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 53 [2024-11-17 03:35:33,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 57 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-17 03:35:33,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:33,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 53 [2024-11-17 03:35:33,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:35:34,238 INFO L124 PetriNetUnfolderBase]: 6702/10215 cut-off events. [2024-11-17 03:35:34,238 INFO L125 PetriNetUnfolderBase]: For 11137/11361 co-relation queries the response was YES. [2024-11-17 03:35:34,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29423 conditions, 10215 events. 6702/10215 cut-off events. For 11137/11361 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 68462 event pairs, 1732 based on Foata normal form. 153/9872 useless extension candidates. Maximal degree in co-relation 29410. Up to 3813 conditions per place. [2024-11-17 03:35:34,328 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 72 selfloop transitions, 5 changer transitions 0/97 dead transitions. [2024-11-17 03:35:34,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 97 transitions, 564 flow [2024-11-17 03:35:34,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:35:34,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:35:34,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 145 transitions. [2024-11-17 03:35:34,330 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6839622641509434 [2024-11-17 03:35:34,330 INFO L175 Difference]: Start difference. First operand has 61 places, 57 transitions, 224 flow. Second operand 4 states and 145 transitions. [2024-11-17 03:35:34,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 97 transitions, 564 flow [2024-11-17 03:35:34,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 97 transitions, 558 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-17 03:35:34,337 INFO L231 Difference]: Finished difference. Result has 66 places, 59 transitions, 254 flow [2024-11-17 03:35:34,338 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=254, PETRI_PLACES=66, PETRI_TRANSITIONS=59} [2024-11-17 03:35:34,338 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 16 predicate places. [2024-11-17 03:35:34,339 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 59 transitions, 254 flow [2024-11-17 03:35:34,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2024-11-17 03:35:34,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:34,339 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:34,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:35:34,340 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:35:34,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:34,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1467173835, now seen corresponding path program 1 times [2024-11-17 03:35:34,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:34,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130365977] [2024-11-17 03:35:34,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:34,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:34,639 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-17 03:35:34,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:34,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130365977] [2024-11-17 03:35:34,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130365977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:35:34,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112520906] [2024-11-17 03:35:34,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:34,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:35:34,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:35:34,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:35:34,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 03:35:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:34,732 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-17 03:35:34,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:35:34,850 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-17 03:35:34,850 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:35:34,943 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-17 03:35:34,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112520906] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:35:34,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:35:34,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-17 03:35:34,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654436827] [2024-11-17 03:35:34,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:35:34,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:35:34,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:34,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:35:34,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:35:34,948 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-11-17 03:35:34,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 254 flow. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 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) [2024-11-17 03:35:34,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:34,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-11-17 03:35:34,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:35:37,579 INFO L124 PetriNetUnfolderBase]: 13709/24867 cut-off events. [2024-11-17 03:35:37,579 INFO L125 PetriNetUnfolderBase]: For 27627/27666 co-relation queries the response was YES. [2024-11-17 03:35:37,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70433 conditions, 24867 events. 13709/24867 cut-off events. For 27627/27666 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 205027 event pairs, 2551 based on Foata normal form. 1/24502 useless extension candidates. Maximal degree in co-relation 70417. Up to 8575 conditions per place. [2024-11-17 03:35:37,767 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 99 selfloop transitions, 22 changer transitions 1/146 dead transitions. [2024-11-17 03:35:37,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 146 transitions, 888 flow [2024-11-17 03:35:37,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:35:37,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:35:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 211 transitions. [2024-11-17 03:35:37,772 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7962264150943397 [2024-11-17 03:35:37,772 INFO L175 Difference]: Start difference. First operand has 66 places, 59 transitions, 254 flow. Second operand 5 states and 211 transitions. [2024-11-17 03:35:37,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 146 transitions, 888 flow [2024-11-17 03:35:37,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 146 transitions, 880 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-11-17 03:35:37,784 INFO L231 Difference]: Finished difference. Result has 71 places, 77 transitions, 395 flow [2024-11-17 03:35:37,784 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=395, PETRI_PLACES=71, PETRI_TRANSITIONS=77} [2024-11-17 03:35:37,785 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 21 predicate places. [2024-11-17 03:35:37,785 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 77 transitions, 395 flow [2024-11-17 03:35:37,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 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) [2024-11-17 03:35:37,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:37,785 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:37,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 03:35:37,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:35:37,992 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:35:37,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:37,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1529762769, now seen corresponding path program 2 times [2024-11-17 03:35:37,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:37,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448421170] [2024-11-17 03:35:37,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:37,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:38,214 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 03:35:38,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:38,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448421170] [2024-11-17 03:35:38,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448421170] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:35:38,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242239872] [2024-11-17 03:35:38,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 03:35:38,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:35:38,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:35:38,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:35:38,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 03:35:38,302 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 03:35:38,303 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:35:38,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-17 03:35:38,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:35:38,396 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 03:35:38,396 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:35:38,477 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 03:35:38,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242239872] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:35:38,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:35:38,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-17 03:35:38,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472610664] [2024-11-17 03:35:38,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:35:38,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:35:38,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:38,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:35:38,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:35:38,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-11-17 03:35:38,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 77 transitions, 395 flow. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 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) [2024-11-17 03:35:38,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:38,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-11-17 03:35:38,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:35:43,141 INFO L124 PetriNetUnfolderBase]: 25729/46581 cut-off events. [2024-11-17 03:35:43,142 INFO L125 PetriNetUnfolderBase]: For 71028/71199 co-relation queries the response was YES. [2024-11-17 03:35:43,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146776 conditions, 46581 events. 25729/46581 cut-off events. For 71028/71199 co-relation queries the response was YES. Maximal size of possible extension queue 1553. Compared 425397 event pairs, 2979 based on Foata normal form. 23/45946 useless extension candidates. Maximal degree in co-relation 146758. Up to 14115 conditions per place. [2024-11-17 03:35:43,579 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 123 selfloop transitions, 46 changer transitions 1/194 dead transitions. [2024-11-17 03:35:43,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 194 transitions, 1307 flow [2024-11-17 03:35:43,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:35:43,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:35:43,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 257 transitions. [2024-11-17 03:35:43,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8081761006289309 [2024-11-17 03:35:43,581 INFO L175 Difference]: Start difference. First operand has 71 places, 77 transitions, 395 flow. Second operand 6 states and 257 transitions. [2024-11-17 03:35:43,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 194 transitions, 1307 flow [2024-11-17 03:35:43,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 194 transitions, 1223 flow, removed 42 selfloop flow, removed 0 redundant places. [2024-11-17 03:35:43,618 INFO L231 Difference]: Finished difference. Result has 77 places, 101 transitions, 583 flow [2024-11-17 03:35:43,618 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=583, PETRI_PLACES=77, PETRI_TRANSITIONS=101} [2024-11-17 03:35:43,620 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 27 predicate places. [2024-11-17 03:35:43,620 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 101 transitions, 583 flow [2024-11-17 03:35:43,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 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) [2024-11-17 03:35:43,620 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:43,621 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:43,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 03:35:43,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-17 03:35:43,825 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:35:43,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:43,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1585804505, now seen corresponding path program 3 times [2024-11-17 03:35:43,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:43,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780663446] [2024-11-17 03:35:43,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:43,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:44,017 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:35:44,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:44,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780663446] [2024-11-17 03:35:44,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780663446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:35:44,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222223689] [2024-11-17 03:35:44,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 03:35:44,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:35:44,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:35:44,020 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:35:44,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 03:35:44,101 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-17 03:35:44,102 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:35:44,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-17 03:35:44,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:35:44,182 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:35:44,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:35:44,259 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:35:44,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222223689] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:35:44,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:35:44,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-17 03:35:44,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773565335] [2024-11-17 03:35:44,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:35:44,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:35:44,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:44,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:35:44,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:35:44,261 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-11-17 03:35:44,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 101 transitions, 583 flow. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 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) [2024-11-17 03:35:44,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:44,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-11-17 03:35:44,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:35:51,673 INFO L124 PetriNetUnfolderBase]: 41806/75811 cut-off events. [2024-11-17 03:35:51,674 INFO L125 PetriNetUnfolderBase]: For 124071/124254 co-relation queries the response was YES. [2024-11-17 03:35:51,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242172 conditions, 75811 events. 41806/75811 cut-off events. For 124071/124254 co-relation queries the response was YES. Maximal size of possible extension queue 2666. Compared 745712 event pairs, 4266 based on Foata normal form. 45/74576 useless extension candidates. Maximal degree in co-relation 242152. Up to 20701 conditions per place. [2024-11-17 03:35:52,566 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 146 selfloop transitions, 76 changer transitions 1/247 dead transitions. [2024-11-17 03:35:52,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 247 transitions, 1749 flow [2024-11-17 03:35:52,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:35:52,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:35:52,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 303 transitions. [2024-11-17 03:35:52,569 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.816711590296496 [2024-11-17 03:35:52,569 INFO L175 Difference]: Start difference. First operand has 77 places, 101 transitions, 583 flow. Second operand 7 states and 303 transitions. [2024-11-17 03:35:52,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 247 transitions, 1749 flow [2024-11-17 03:35:52,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 247 transitions, 1642 flow, removed 47 selfloop flow, removed 1 redundant places. [2024-11-17 03:35:52,638 INFO L231 Difference]: Finished difference. Result has 83 places, 131 transitions, 861 flow [2024-11-17 03:35:52,638 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=861, PETRI_PLACES=83, PETRI_TRANSITIONS=131} [2024-11-17 03:35:52,638 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 33 predicate places. [2024-11-17 03:35:52,639 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 131 transitions, 861 flow [2024-11-17 03:35:52,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 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) [2024-11-17 03:35:52,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:35:52,639 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:35:52,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 03:35:52,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:35:52,840 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:35:52,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:35:52,844 INFO L85 PathProgramCache]: Analyzing trace with hash 202455211, now seen corresponding path program 4 times [2024-11-17 03:35:52,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:35:52,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473705560] [2024-11-17 03:35:52,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:35:52,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:35:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:35:53,086 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 03:35:53,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:35:53,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473705560] [2024-11-17 03:35:53,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473705560] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:35:53,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475781193] [2024-11-17 03:35:53,089 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-17 03:35:53,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:35:53,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:35:53,091 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:35:53,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 03:35:53,167 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-17 03:35:53,168 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:35:53,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-17 03:35:53,171 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:35:53,242 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 03:35:53,242 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:35:53,319 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 03:35:53,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475781193] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:35:53,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:35:53,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-17 03:35:53,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659751601] [2024-11-17 03:35:53,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:35:53,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:35:53,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:35:53,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:35:53,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:35:53,324 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-11-17 03:35:53,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 131 transitions, 861 flow. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 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) [2024-11-17 03:35:53,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:35:53,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-11-17 03:35:53,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:36:03,103 INFO L124 PetriNetUnfolderBase]: 53494/97597 cut-off events. [2024-11-17 03:36:03,103 INFO L125 PetriNetUnfolderBase]: For 197203/197275 co-relation queries the response was YES. [2024-11-17 03:36:03,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325320 conditions, 97597 events. 53494/97597 cut-off events. For 197203/197275 co-relation queries the response was YES. Maximal size of possible extension queue 3455. Compared 1003609 event pairs, 11051 based on Foata normal form. 37/95379 useless extension candidates. Maximal degree in co-relation 325299. Up to 58696 conditions per place. [2024-11-17 03:36:04,052 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 185 selfloop transitions, 54 changer transitions 1/264 dead transitions. [2024-11-17 03:36:04,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 264 transitions, 2098 flow [2024-11-17 03:36:04,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:36:04,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:36:04,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 253 transitions. [2024-11-17 03:36:04,055 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7955974842767296 [2024-11-17 03:36:04,055 INFO L175 Difference]: Start difference. First operand has 83 places, 131 transitions, 861 flow. Second operand 6 states and 253 transitions. [2024-11-17 03:36:04,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 264 transitions, 2098 flow [2024-11-17 03:36:04,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 264 transitions, 1984 flow, removed 40 selfloop flow, removed 1 redundant places. [2024-11-17 03:36:04,165 INFO L231 Difference]: Finished difference. Result has 90 places, 181 transitions, 1366 flow [2024-11-17 03:36:04,166 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1366, PETRI_PLACES=90, PETRI_TRANSITIONS=181} [2024-11-17 03:36:04,166 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 40 predicate places. [2024-11-17 03:36:04,166 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 181 transitions, 1366 flow [2024-11-17 03:36:04,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 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) [2024-11-17 03:36:04,167 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:36:04,167 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:36:04,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 03:36:04,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:36:04,369 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:36:04,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:36:04,369 INFO L85 PathProgramCache]: Analyzing trace with hash 360908631, now seen corresponding path program 5 times [2024-11-17 03:36:04,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:36:04,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298438509] [2024-11-17 03:36:04,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:04,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:36:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:04,565 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:04,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:36:04,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298438509] [2024-11-17 03:36:04,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298438509] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:36:04,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220199692] [2024-11-17 03:36:04,566 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-17 03:36:04,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:36:04,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:36:04,568 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:36:04,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 03:36:04,651 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-11-17 03:36:04,651 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:36:04,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-17 03:36:04,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:36:04,737 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:04,737 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:36:04,808 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:04,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220199692] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:36:04,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:36:04,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2024-11-17 03:36:04,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449893482] [2024-11-17 03:36:04,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:36:04,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 03:36:04,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:36:04,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 03:36:04,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-17 03:36:04,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-11-17 03:36:04,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 181 transitions, 1366 flow. Second operand has 8 states, 8 states have (on average 28.25) internal successors, (226), 8 states have internal predecessors, (226), 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) [2024-11-17 03:36:04,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:36:04,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-11-17 03:36:04,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:36:19,721 INFO L124 PetriNetUnfolderBase]: 72131/130787 cut-off events. [2024-11-17 03:36:19,721 INFO L125 PetriNetUnfolderBase]: For 274865/275213 co-relation queries the response was YES. [2024-11-17 03:36:20,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438437 conditions, 130787 events. 72131/130787 cut-off events. For 274865/275213 co-relation queries the response was YES. Maximal size of possible extension queue 5005. Compared 1386587 event pairs, 6874 based on Foata normal form. 109/128278 useless extension candidates. Maximal degree in co-relation 438413. Up to 23338 conditions per place. [2024-11-17 03:36:20,976 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 170 selfloop transitions, 162 changer transitions 1/357 dead transitions. [2024-11-17 03:36:20,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 357 transitions, 2902 flow [2024-11-17 03:36:20,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 03:36:20,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 03:36:20,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 349 transitions. [2024-11-17 03:36:20,978 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8231132075471698 [2024-11-17 03:36:20,978 INFO L175 Difference]: Start difference. First operand has 90 places, 181 transitions, 1366 flow. Second operand 8 states and 349 transitions. [2024-11-17 03:36:20,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 357 transitions, 2902 flow [2024-11-17 03:36:21,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 357 transitions, 2890 flow, removed 6 selfloop flow, removed 0 redundant places. [2024-11-17 03:36:21,170 INFO L231 Difference]: Finished difference. Result has 98 places, 217 transitions, 1967 flow [2024-11-17 03:36:21,171 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1354, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1967, PETRI_PLACES=98, PETRI_TRANSITIONS=217} [2024-11-17 03:36:21,171 INFO L277 CegarLoopForPetriNet]: 50 programPoint places, 48 predicate places. [2024-11-17 03:36:21,171 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 217 transitions, 1967 flow [2024-11-17 03:36:21,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 28.25) internal successors, (226), 8 states have internal predecessors, (226), 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) [2024-11-17 03:36:21,172 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:36:21,172 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:36:21,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-17 03:36:21,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-17 03:36:21,377 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:36:21,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:36:21,377 INFO L85 PathProgramCache]: Analyzing trace with hash 656593146, now seen corresponding path program 6 times [2024-11-17 03:36:21,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:36:21,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106408847] [2024-11-17 03:36:21,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:21,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:36:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:21,795 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-17 03:36:21,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:36:21,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106408847] [2024-11-17 03:36:21,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106408847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:36:21,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792202331] [2024-11-17 03:36:21,796 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-17 03:36:21,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:36:21,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:36:21,798 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:36:21,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 03:36:21,876 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-11-17 03:36:21,876 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:36:21,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-17 03:36:21,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:36:21,979 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 03:36:21,979 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:36:22,133 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-17 03:36:22,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792202331] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-17 03:36:22,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-17 03:36:22,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 5] total 11 [2024-11-17 03:36:22,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106461493] [2024-11-17 03:36:22,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:36:22,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:36:22,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:36:22,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:36:22,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-17 03:36:22,139 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-11-17 03:36:22,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 217 transitions, 1967 flow. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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) [2024-11-17 03:36:22,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:36:22,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-11-17 03:36:22,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand