./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy11.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy11.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 d4ad0d0809306a534b821bfb65370b6441b48266d0d86b4699760a422c08b963 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:27:10,928 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:27:11,000 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:27:11,004 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:27:11,005 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:27:11,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:27:11,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:27:11,034 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:27:11,035 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:27:11,036 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:27:11,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:27:11,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:27:11,038 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:27:11,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:27:11,040 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:27:11,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:27:11,041 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:27:11,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:27:11,041 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:27:11,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:27:11,042 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:27:11,042 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:27:11,043 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:27:11,043 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:27:11,045 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:27:11,046 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:27:11,046 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:27:11,046 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:27:11,047 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:27:11,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:27:11,047 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:27:11,047 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:27:11,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:27:11,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:27:11,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:27:11,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:27:11,049 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:27:11,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:27:11,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:27:11,049 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:27:11,050 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:27:11,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:27:11,050 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4ad0d0809306a534b821bfb65370b6441b48266d0d86b4699760a422c08b963 [2024-10-24 19:27:11,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:27:11,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:27:11,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:27:11,331 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:27:11,331 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:27:11,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy11.wvr.c [2024-10-24 19:27:12,745 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:27:12,924 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:27:12,925 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy11.wvr.c [2024-10-24 19:27:12,931 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/477247d27/082f84d694164fb496c4593787e929ca/FLAGeb5498829 [2024-10-24 19:27:12,943 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/477247d27/082f84d694164fb496c4593787e929ca [2024-10-24 19:27:12,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:27:12,946 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:27:12,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:27:12,950 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:27:12,954 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:27:12,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:27:12" (1/1) ... [2024-10-24 19:27:12,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17232ed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:12, skipping insertion in model container [2024-10-24 19:27:12,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:27:12" (1/1) ... [2024-10-24 19:27:12,972 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:27:13,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:27:13,167 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:27:13,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:27:13,195 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:27:13,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:13 WrapperNode [2024-10-24 19:27:13,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:27:13,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:27:13,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:27:13,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:27:13,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:13" (1/1) ... [2024-10-24 19:27:13,208 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:13" (1/1) ... [2024-10-24 19:27:13,222 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 43 [2024-10-24 19:27:13,222 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:27:13,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:27:13,223 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:27:13,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:27:13,232 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:13" (1/1) ... [2024-10-24 19:27:13,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:13" (1/1) ... [2024-10-24 19:27:13,234 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:13" (1/1) ... [2024-10-24 19:27:13,244 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 19:27:13,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:13" (1/1) ... [2024-10-24 19:27:13,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:13" (1/1) ... [2024-10-24 19:27:13,247 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:13" (1/1) ... [2024-10-24 19:27:13,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:13" (1/1) ... [2024-10-24 19:27:13,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:13" (1/1) ... [2024-10-24 19:27:13,251 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:13" (1/1) ... [2024-10-24 19:27:13,253 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:27:13,254 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:27:13,254 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:27:13,254 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:27:13,254 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:13" (1/1) ... [2024-10-24 19:27:13,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:27:13,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:13,285 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) [2024-10-24 19:27:13,301 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 [2024-10-24 19:27:13,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:27:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-24 19:27:13,384 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-24 19:27:13,384 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-24 19:27:13,384 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-24 19:27:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 19:27:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:27:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:27:13,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:27:13,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:27:13,386 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 19:27:13,477 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:27:13,481 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:27:13,651 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:27:13,651 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:27:13,780 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:27:13,782 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 19:27:13,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:27:13 BoogieIcfgContainer [2024-10-24 19:27:13,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:27:13,785 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:27:13,785 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:27:13,788 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:27:13,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:27:12" (1/3) ... [2024-10-24 19:27:13,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca9a598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:27:13, skipping insertion in model container [2024-10-24 19:27:13,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:27:13" (2/3) ... [2024-10-24 19:27:13,790 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca9a598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:27:13, skipping insertion in model container [2024-10-24 19:27:13,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:27:13" (3/3) ... [2024-10-24 19:27:13,791 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy11.wvr.c [2024-10-24 19:27:13,806 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:27:13,807 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 19:27:13,807 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:27:13,845 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-24 19:27:13,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 24 transitions, 62 flow [2024-10-24 19:27:13,903 INFO L124 PetriNetUnfolderBase]: 2/22 cut-off events. [2024-10-24 19:27:13,908 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-24 19:27:13,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 22 events. 2/22 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2024-10-24 19:27:13,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 24 transitions, 62 flow [2024-10-24 19:27:13,913 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 21 transitions, 54 flow [2024-10-24 19:27:13,922 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:27:13,932 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;@7dab3e1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:27:13,932 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-24 19:27:13,945 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:27:13,945 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2024-10-24 19:27:13,946 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-24 19:27:13,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:13,947 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:13,947 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:13,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:13,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1071131489, now seen corresponding path program 1 times [2024-10-24 19:27:13,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:13,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367510027] [2024-10-24 19:27:13,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:13,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:14,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:14,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:14,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367510027] [2024-10-24 19:27:14,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367510027] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:14,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:14,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:14,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875407229] [2024-10-24 19:27:14,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:14,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:14,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:14,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:14,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:14,550 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:14,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 54 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:14,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:14,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:14,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:14,908 INFO L124 PetriNetUnfolderBase]: 111/201 cut-off events. [2024-10-24 19:27:14,908 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-10-24 19:27:14,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 201 events. 111/201 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 605 event pairs, 2 based on Foata normal form. 2/175 useless extension candidates. Maximal degree in co-relation 364. Up to 57 conditions per place. [2024-10-24 19:27:14,912 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 40 selfloop transitions, 10 changer transitions 10/61 dead transitions. [2024-10-24 19:27:14,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 61 transitions, 278 flow [2024-10-24 19:27:14,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:14,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:14,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 98 transitions. [2024-10-24 19:27:14,924 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2024-10-24 19:27:14,926 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 54 flow. Second operand 9 states and 98 transitions. [2024-10-24 19:27:14,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 61 transitions, 278 flow [2024-10-24 19:27:14,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 61 transitions, 254 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 19:27:14,951 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 107 flow [2024-10-24 19:27:14,952 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=107, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2024-10-24 19:27:14,956 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2024-10-24 19:27:14,956 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 107 flow [2024-10-24 19:27:14,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:14,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:14,956 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:14,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:27:14,957 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:14,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:14,958 INFO L85 PathProgramCache]: Analyzing trace with hash 374310665, now seen corresponding path program 2 times [2024-10-24 19:27:14,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:14,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504732535] [2024-10-24 19:27:14,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:14,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:15,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:15,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:15,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504732535] [2024-10-24 19:27:15,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504732535] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:15,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:15,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:15,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596421663] [2024-10-24 19:27:15,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:15,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:15,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:15,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:15,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:15,210 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:15,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 107 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:15,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:15,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:15,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:15,464 INFO L124 PetriNetUnfolderBase]: 114/208 cut-off events. [2024-10-24 19:27:15,464 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-10-24 19:27:15,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 208 events. 114/208 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 601 event pairs, 15 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 575. Up to 115 conditions per place. [2024-10-24 19:27:15,467 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 34 selfloop transitions, 14 changer transitions 10/59 dead transitions. [2024-10-24 19:27:15,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 59 transitions, 336 flow [2024-10-24 19:27:15,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:15,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:15,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 92 transitions. [2024-10-24 19:27:15,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-10-24 19:27:15,469 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 107 flow. Second operand 9 states and 92 transitions. [2024-10-24 19:27:15,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 59 transitions, 336 flow [2024-10-24 19:27:15,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 59 transitions, 324 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-24 19:27:15,473 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 190 flow [2024-10-24 19:27:15,473 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=190, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2024-10-24 19:27:15,474 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 17 predicate places. [2024-10-24 19:27:15,474 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 190 flow [2024-10-24 19:27:15,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:15,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:15,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:15,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:27:15,475 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:15,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:15,475 INFO L85 PathProgramCache]: Analyzing trace with hash 123364783, now seen corresponding path program 3 times [2024-10-24 19:27:15,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:15,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211115488] [2024-10-24 19:27:15,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:15,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:15,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:15,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:15,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211115488] [2024-10-24 19:27:15,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211115488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:15,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:15,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:15,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653258788] [2024-10-24 19:27:15,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:15,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:15,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:15,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:15,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:15,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:15,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 190 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:15,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:15,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:15,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:15,887 INFO L124 PetriNetUnfolderBase]: 120/218 cut-off events. [2024-10-24 19:27:15,887 INFO L125 PetriNetUnfolderBase]: For 207/207 co-relation queries the response was YES. [2024-10-24 19:27:15,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 218 events. 120/218 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 673 event pairs, 11 based on Foata normal form. 1/219 useless extension candidates. Maximal degree in co-relation 698. Up to 119 conditions per place. [2024-10-24 19:27:15,890 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 39 selfloop transitions, 18 changer transitions 10/68 dead transitions. [2024-10-24 19:27:15,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 68 transitions, 457 flow [2024-10-24 19:27:15,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:15,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:15,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 96 transitions. [2024-10-24 19:27:15,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-10-24 19:27:15,893 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 190 flow. Second operand 9 states and 96 transitions. [2024-10-24 19:27:15,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 68 transitions, 457 flow [2024-10-24 19:27:15,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 68 transitions, 422 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-10-24 19:27:15,901 INFO L231 Difference]: Finished difference. Result has 49 places, 40 transitions, 256 flow [2024-10-24 19:27:15,902 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=256, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2024-10-24 19:27:15,903 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 23 predicate places. [2024-10-24 19:27:15,904 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 256 flow [2024-10-24 19:27:15,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:15,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:15,905 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:15,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 19:27:15,905 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:15,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:15,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1307526245, now seen corresponding path program 4 times [2024-10-24 19:27:15,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:15,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415501405] [2024-10-24 19:27:15,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:15,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:16,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:16,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:16,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415501405] [2024-10-24 19:27:16,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415501405] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:16,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:16,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:16,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213182298] [2024-10-24 19:27:16,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:16,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:16,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:16,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:16,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:16,091 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:16,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 256 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:16,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:16,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:16,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:16,309 INFO L124 PetriNetUnfolderBase]: 141/249 cut-off events. [2024-10-24 19:27:16,310 INFO L125 PetriNetUnfolderBase]: For 442/442 co-relation queries the response was YES. [2024-10-24 19:27:16,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 909 conditions, 249 events. 141/249 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 754 event pairs, 20 based on Foata normal form. 1/250 useless extension candidates. Maximal degree in co-relation 891. Up to 129 conditions per place. [2024-10-24 19:27:16,315 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 36 selfloop transitions, 26 changer transitions 10/73 dead transitions. [2024-10-24 19:27:16,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 73 transitions, 576 flow [2024-10-24 19:27:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:16,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:16,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-10-24 19:27:16,317 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2024-10-24 19:27:16,317 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 256 flow. Second operand 9 states and 95 transitions. [2024-10-24 19:27:16,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 73 transitions, 576 flow [2024-10-24 19:27:16,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 73 transitions, 514 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-24 19:27:16,321 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 391 flow [2024-10-24 19:27:16,322 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=391, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2024-10-24 19:27:16,323 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 28 predicate places. [2024-10-24 19:27:16,324 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 391 flow [2024-10-24 19:27:16,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:16,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:16,325 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:16,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 19:27:16,325 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:16,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:16,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1126397875, now seen corresponding path program 5 times [2024-10-24 19:27:16,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:16,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842303569] [2024-10-24 19:27:16,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:16,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:16,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:16,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:16,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842303569] [2024-10-24 19:27:16,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842303569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:16,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:16,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:16,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138506713] [2024-10-24 19:27:16,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:16,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:16,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:16,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:16,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:16,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:16,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 391 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:16,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:16,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:16,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:16,702 INFO L124 PetriNetUnfolderBase]: 149/262 cut-off events. [2024-10-24 19:27:16,703 INFO L125 PetriNetUnfolderBase]: For 612/612 co-relation queries the response was YES. [2024-10-24 19:27:16,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1052 conditions, 262 events. 149/262 cut-off events. For 612/612 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 847 event pairs, 10 based on Foata normal form. 1/263 useless extension candidates. Maximal degree in co-relation 1031. Up to 132 conditions per place. [2024-10-24 19:27:16,705 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 48 selfloop transitions, 25 changer transitions 10/84 dead transitions. [2024-10-24 19:27:16,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 84 transitions, 715 flow [2024-10-24 19:27:16,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:16,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:16,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 99 transitions. [2024-10-24 19:27:16,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2024-10-24 19:27:16,707 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 391 flow. Second operand 9 states and 99 transitions. [2024-10-24 19:27:16,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 84 transitions, 715 flow [2024-10-24 19:27:16,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 84 transitions, 668 flow, removed 13 selfloop flow, removed 4 redundant places. [2024-10-24 19:27:16,714 INFO L231 Difference]: Finished difference. Result has 59 places, 52 transitions, 423 flow [2024-10-24 19:27:16,715 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=423, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2024-10-24 19:27:16,715 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 33 predicate places. [2024-10-24 19:27:16,717 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 423 flow [2024-10-24 19:27:16,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:16,717 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:16,717 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:16,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 19:27:16,718 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:16,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:16,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1895407655, now seen corresponding path program 6 times [2024-10-24 19:27:16,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:16,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383796796] [2024-10-24 19:27:16,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:16,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:16,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:16,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:16,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383796796] [2024-10-24 19:27:16,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383796796] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:16,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:16,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:16,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249297484] [2024-10-24 19:27:16,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:16,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:16,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:16,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:16,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:16,860 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:16,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 423 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:16,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:16,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:16,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:17,059 INFO L124 PetriNetUnfolderBase]: 166/288 cut-off events. [2024-10-24 19:27:17,060 INFO L125 PetriNetUnfolderBase]: For 859/859 co-relation queries the response was YES. [2024-10-24 19:27:17,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1258 conditions, 288 events. 166/288 cut-off events. For 859/859 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 943 event pairs, 12 based on Foata normal form. 1/289 useless extension candidates. Maximal degree in co-relation 1236. Up to 149 conditions per place. [2024-10-24 19:27:17,062 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 43 selfloop transitions, 33 changer transitions 9/86 dead transitions. [2024-10-24 19:27:17,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 86 transitions, 814 flow [2024-10-24 19:27:17,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:17,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:17,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-10-24 19:27:17,064 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2024-10-24 19:27:17,064 INFO L175 Difference]: Start difference. First operand has 59 places, 52 transitions, 423 flow. Second operand 9 states and 95 transitions. [2024-10-24 19:27:17,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 86 transitions, 814 flow [2024-10-24 19:27:17,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 86 transitions, 738 flow, removed 6 selfloop flow, removed 7 redundant places. [2024-10-24 19:27:17,069 INFO L231 Difference]: Finished difference. Result has 63 places, 63 transitions, 588 flow [2024-10-24 19:27:17,069 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=588, PETRI_PLACES=63, PETRI_TRANSITIONS=63} [2024-10-24 19:27:17,070 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 37 predicate places. [2024-10-24 19:27:17,070 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 63 transitions, 588 flow [2024-10-24 19:27:17,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:17,071 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:17,071 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:17,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 19:27:17,071 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:17,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:17,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1357983573, now seen corresponding path program 7 times [2024-10-24 19:27:17,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:17,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766271623] [2024-10-24 19:27:17,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:17,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:17,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:17,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:17,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766271623] [2024-10-24 19:27:17,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766271623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:17,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:17,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:17,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304548973] [2024-10-24 19:27:17,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:17,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:17,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:17,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:17,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:17,223 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:17,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 63 transitions, 588 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:17,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:17,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:17,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:17,438 INFO L124 PetriNetUnfolderBase]: 164/286 cut-off events. [2024-10-24 19:27:17,439 INFO L125 PetriNetUnfolderBase]: For 1052/1052 co-relation queries the response was YES. [2024-10-24 19:27:17,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 286 events. 164/286 cut-off events. For 1052/1052 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 951 event pairs, 14 based on Foata normal form. 1/287 useless extension candidates. Maximal degree in co-relation 1317. Up to 147 conditions per place. [2024-10-24 19:27:17,441 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 51 selfloop transitions, 29 changer transitions 11/92 dead transitions. [2024-10-24 19:27:17,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 92 transitions, 939 flow [2024-10-24 19:27:17,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:17,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:17,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-10-24 19:27:17,443 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-10-24 19:27:17,443 INFO L175 Difference]: Start difference. First operand has 63 places, 63 transitions, 588 flow. Second operand 9 states and 94 transitions. [2024-10-24 19:27:17,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 92 transitions, 939 flow [2024-10-24 19:27:17,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 92 transitions, 857 flow, removed 28 selfloop flow, removed 4 redundant places. [2024-10-24 19:27:17,449 INFO L231 Difference]: Finished difference. Result has 67 places, 61 transitions, 569 flow [2024-10-24 19:27:17,449 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=569, PETRI_PLACES=67, PETRI_TRANSITIONS=61} [2024-10-24 19:27:17,450 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 41 predicate places. [2024-10-24 19:27:17,450 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 61 transitions, 569 flow [2024-10-24 19:27:17,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:17,450 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:17,451 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:17,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 19:27:17,451 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:17,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:17,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1232672397, now seen corresponding path program 8 times [2024-10-24 19:27:17,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:17,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871592896] [2024-10-24 19:27:17,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:17,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:17,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:17,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:17,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871592896] [2024-10-24 19:27:17,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871592896] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:17,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:17,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:17,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483049471] [2024-10-24 19:27:17,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:17,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:17,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:17,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:17,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:17,594 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:17,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 61 transitions, 569 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:17,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:17,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:17,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:17,817 INFO L124 PetriNetUnfolderBase]: 177/308 cut-off events. [2024-10-24 19:27:17,818 INFO L125 PetriNetUnfolderBase]: For 1088/1088 co-relation queries the response was YES. [2024-10-24 19:27:17,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1368 conditions, 308 events. 177/308 cut-off events. For 1088/1088 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1050 event pairs, 12 based on Foata normal form. 1/309 useless extension candidates. Maximal degree in co-relation 1343. Up to 151 conditions per place. [2024-10-24 19:27:17,820 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 46 selfloop transitions, 34 changer transitions 10/91 dead transitions. [2024-10-24 19:27:17,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 91 transitions, 894 flow [2024-10-24 19:27:17,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:17,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:17,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 100 transitions. [2024-10-24 19:27:17,822 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46296296296296297 [2024-10-24 19:27:17,822 INFO L175 Difference]: Start difference. First operand has 67 places, 61 transitions, 569 flow. Second operand 9 states and 100 transitions. [2024-10-24 19:27:17,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 91 transitions, 894 flow [2024-10-24 19:27:17,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 91 transitions, 830 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-10-24 19:27:17,828 INFO L231 Difference]: Finished difference. Result has 68 places, 65 transitions, 634 flow [2024-10-24 19:27:17,828 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=634, PETRI_PLACES=68, PETRI_TRANSITIONS=65} [2024-10-24 19:27:17,830 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 42 predicate places. [2024-10-24 19:27:17,830 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 65 transitions, 634 flow [2024-10-24 19:27:17,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:17,831 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:17,831 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:17,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 19:27:17,831 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:17,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:17,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1864329839, now seen corresponding path program 9 times [2024-10-24 19:27:17,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:17,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774235617] [2024-10-24 19:27:17,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:17,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:17,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:17,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:17,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774235617] [2024-10-24 19:27:17,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774235617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:17,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:17,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:17,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703186538] [2024-10-24 19:27:17,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:17,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:17,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:17,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:17,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:17,963 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:17,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 65 transitions, 634 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:17,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:17,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:17,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:18,175 INFO L124 PetriNetUnfolderBase]: 171/301 cut-off events. [2024-10-24 19:27:18,176 INFO L125 PetriNetUnfolderBase]: For 1240/1240 co-relation queries the response was YES. [2024-10-24 19:27:18,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1409 conditions, 301 events. 171/301 cut-off events. For 1240/1240 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1019 event pairs, 15 based on Foata normal form. 1/302 useless extension candidates. Maximal degree in co-relation 1382. Up to 165 conditions per place. [2024-10-24 19:27:18,178 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 45 selfloop transitions, 32 changer transitions 9/87 dead transitions. [2024-10-24 19:27:18,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 87 transitions, 906 flow [2024-10-24 19:27:18,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:18,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:18,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-10-24 19:27:18,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2024-10-24 19:27:18,180 INFO L175 Difference]: Start difference. First operand has 68 places, 65 transitions, 634 flow. Second operand 9 states and 95 transitions. [2024-10-24 19:27:18,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 87 transitions, 906 flow [2024-10-24 19:27:18,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 87 transitions, 840 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-10-24 19:27:18,185 INFO L231 Difference]: Finished difference. Result has 72 places, 65 transitions, 644 flow [2024-10-24 19:27:18,186 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=644, PETRI_PLACES=72, PETRI_TRANSITIONS=65} [2024-10-24 19:27:18,186 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 46 predicate places. [2024-10-24 19:27:18,186 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 65 transitions, 644 flow [2024-10-24 19:27:18,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:18,187 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:18,187 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:18,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 19:27:18,187 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:18,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:18,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1812532241, now seen corresponding path program 10 times [2024-10-24 19:27:18,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:18,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901322312] [2024-10-24 19:27:18,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:18,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:18,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:18,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:18,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901322312] [2024-10-24 19:27:18,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901322312] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:18,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:18,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:18,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931401630] [2024-10-24 19:27:18,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:18,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:18,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:18,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:18,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:18,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:18,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 65 transitions, 644 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:18,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:18,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:18,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:18,550 INFO L124 PetriNetUnfolderBase]: 170/301 cut-off events. [2024-10-24 19:27:18,550 INFO L125 PetriNetUnfolderBase]: For 1192/1192 co-relation queries the response was YES. [2024-10-24 19:27:18,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1386 conditions, 301 events. 170/301 cut-off events. For 1192/1192 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1037 event pairs, 15 based on Foata normal form. 1/302 useless extension candidates. Maximal degree in co-relation 1358. Up to 163 conditions per place. [2024-10-24 19:27:18,555 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 44 selfloop transitions, 30 changer transitions 12/87 dead transitions. [2024-10-24 19:27:18,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 87 transitions, 908 flow [2024-10-24 19:27:18,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:18,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:18,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-10-24 19:27:18,556 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2024-10-24 19:27:18,557 INFO L175 Difference]: Start difference. First operand has 72 places, 65 transitions, 644 flow. Second operand 9 states and 95 transitions. [2024-10-24 19:27:18,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 87 transitions, 908 flow [2024-10-24 19:27:18,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 87 transitions, 838 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-10-24 19:27:18,563 INFO L231 Difference]: Finished difference. Result has 73 places, 63 transitions, 610 flow [2024-10-24 19:27:18,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=610, PETRI_PLACES=73, PETRI_TRANSITIONS=63} [2024-10-24 19:27:18,564 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 47 predicate places. [2024-10-24 19:27:18,565 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 63 transitions, 610 flow [2024-10-24 19:27:18,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:18,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:18,565 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:18,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 19:27:18,566 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:18,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:18,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1947205253, now seen corresponding path program 11 times [2024-10-24 19:27:18,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:18,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763724349] [2024-10-24 19:27:18,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:18,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:18,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:18,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:18,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763724349] [2024-10-24 19:27:18,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763724349] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:18,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:18,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:18,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856154561] [2024-10-24 19:27:18,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:18,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:18,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:18,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:18,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:18,705 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:18,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 63 transitions, 610 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:18,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:18,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:18,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:18,885 INFO L124 PetriNetUnfolderBase]: 162/286 cut-off events. [2024-10-24 19:27:18,885 INFO L125 PetriNetUnfolderBase]: For 1124/1124 co-relation queries the response was YES. [2024-10-24 19:27:18,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1320 conditions, 286 events. 162/286 cut-off events. For 1124/1124 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 956 event pairs, 14 based on Foata normal form. 1/287 useless extension candidates. Maximal degree in co-relation 1292. Up to 151 conditions per place. [2024-10-24 19:27:18,888 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 43 selfloop transitions, 28 changer transitions 12/84 dead transitions. [2024-10-24 19:27:18,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 84 transitions, 863 flow [2024-10-24 19:27:18,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:18,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:18,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-10-24 19:27:18,889 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-10-24 19:27:18,889 INFO L175 Difference]: Start difference. First operand has 73 places, 63 transitions, 610 flow. Second operand 9 states and 94 transitions. [2024-10-24 19:27:18,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 84 transitions, 863 flow [2024-10-24 19:27:18,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 84 transitions, 797 flow, removed 3 selfloop flow, removed 7 redundant places. [2024-10-24 19:27:18,894 INFO L231 Difference]: Finished difference. Result has 71 places, 60 transitions, 568 flow [2024-10-24 19:27:18,895 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=568, PETRI_PLACES=71, PETRI_TRANSITIONS=60} [2024-10-24 19:27:18,895 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 45 predicate places. [2024-10-24 19:27:18,895 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 60 transitions, 568 flow [2024-10-24 19:27:18,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:18,896 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:18,896 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:18,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 19:27:18,896 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:18,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:18,897 INFO L85 PathProgramCache]: Analyzing trace with hash -534132667, now seen corresponding path program 12 times [2024-10-24 19:27:18,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:18,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304060905] [2024-10-24 19:27:18,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:18,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:18,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:18,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304060905] [2024-10-24 19:27:18,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304060905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:18,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:18,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:18,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228014825] [2024-10-24 19:27:18,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:18,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:19,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:19,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:19,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:19,003 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:19,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 60 transitions, 568 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:19,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:19,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:19,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:19,200 INFO L124 PetriNetUnfolderBase]: 166/291 cut-off events. [2024-10-24 19:27:19,200 INFO L125 PetriNetUnfolderBase]: For 1138/1138 co-relation queries the response was YES. [2024-10-24 19:27:19,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1315 conditions, 291 events. 166/291 cut-off events. For 1138/1138 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 967 event pairs, 13 based on Foata normal form. 1/292 useless extension candidates. Maximal degree in co-relation 1288. Up to 153 conditions per place. [2024-10-24 19:27:19,203 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 45 selfloop transitions, 29 changer transitions 9/84 dead transitions. [2024-10-24 19:27:19,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 84 transitions, 840 flow [2024-10-24 19:27:19,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:19,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:19,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-10-24 19:27:19,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-10-24 19:27:19,205 INFO L175 Difference]: Start difference. First operand has 71 places, 60 transitions, 568 flow. Second operand 9 states and 94 transitions. [2024-10-24 19:27:19,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 84 transitions, 840 flow [2024-10-24 19:27:19,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 84 transitions, 778 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-10-24 19:27:19,224 INFO L231 Difference]: Finished difference. Result has 72 places, 61 transitions, 586 flow [2024-10-24 19:27:19,225 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=586, PETRI_PLACES=72, PETRI_TRANSITIONS=61} [2024-10-24 19:27:19,226 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 46 predicate places. [2024-10-24 19:27:19,226 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 61 transitions, 586 flow [2024-10-24 19:27:19,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:19,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:19,228 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:19,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 19:27:19,229 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:19,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:19,229 INFO L85 PathProgramCache]: Analyzing trace with hash -772296443, now seen corresponding path program 13 times [2024-10-24 19:27:19,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:19,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865245797] [2024-10-24 19:27:19,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:19,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:19,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:19,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:19,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865245797] [2024-10-24 19:27:19,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865245797] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:19,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:19,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:19,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919348204] [2024-10-24 19:27:19,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:19,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:19,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:19,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:19,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:19,362 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:19,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 61 transitions, 586 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:19,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:19,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:19,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:19,604 INFO L124 PetriNetUnfolderBase]: 163/289 cut-off events. [2024-10-24 19:27:19,604 INFO L125 PetriNetUnfolderBase]: For 1295/1295 co-relation queries the response was YES. [2024-10-24 19:27:19,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 289 events. 163/289 cut-off events. For 1295/1295 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 946 event pairs, 21 based on Foata normal form. 1/290 useless extension candidates. Maximal degree in co-relation 1294. Up to 157 conditions per place. [2024-10-24 19:27:19,607 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 43 selfloop transitions, 30 changer transitions 10/84 dead transitions. [2024-10-24 19:27:19,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 84 transitions, 875 flow [2024-10-24 19:27:19,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:19,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:19,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-10-24 19:27:19,608 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-10-24 19:27:19,608 INFO L175 Difference]: Start difference. First operand has 72 places, 61 transitions, 586 flow. Second operand 9 states and 94 transitions. [2024-10-24 19:27:19,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 84 transitions, 875 flow [2024-10-24 19:27:19,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 84 transitions, 803 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-10-24 19:27:19,613 INFO L231 Difference]: Finished difference. Result has 75 places, 63 transitions, 620 flow [2024-10-24 19:27:19,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=620, PETRI_PLACES=75, PETRI_TRANSITIONS=63} [2024-10-24 19:27:19,615 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 49 predicate places. [2024-10-24 19:27:19,615 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 63 transitions, 620 flow [2024-10-24 19:27:19,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:19,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:19,615 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:19,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 19:27:19,616 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:19,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:19,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2104401479, now seen corresponding path program 14 times [2024-10-24 19:27:19,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:19,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749737470] [2024-10-24 19:27:19,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:19,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:19,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:19,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:19,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749737470] [2024-10-24 19:27:19,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749737470] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:19,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:19,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:19,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967304021] [2024-10-24 19:27:19,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:19,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:19,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:19,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:19,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:19,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:19,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 63 transitions, 620 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:19,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:19,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:19,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:19,919 INFO L124 PetriNetUnfolderBase]: 168/297 cut-off events. [2024-10-24 19:27:19,920 INFO L125 PetriNetUnfolderBase]: For 1356/1356 co-relation queries the response was YES. [2024-10-24 19:27:19,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1380 conditions, 297 events. 168/297 cut-off events. For 1356/1356 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 988 event pairs, 12 based on Foata normal form. 1/298 useless extension candidates. Maximal degree in co-relation 1349. Up to 107 conditions per place. [2024-10-24 19:27:19,923 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 52 selfloop transitions, 26 changer transitions 9/88 dead transitions. [2024-10-24 19:27:19,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 88 transitions, 941 flow [2024-10-24 19:27:19,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:19,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:19,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 90 transitions. [2024-10-24 19:27:19,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2024-10-24 19:27:19,925 INFO L175 Difference]: Start difference. First operand has 75 places, 63 transitions, 620 flow. Second operand 9 states and 90 transitions. [2024-10-24 19:27:19,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 88 transitions, 941 flow [2024-10-24 19:27:19,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 88 transitions, 890 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-10-24 19:27:19,931 INFO L231 Difference]: Finished difference. Result has 78 places, 64 transitions, 643 flow [2024-10-24 19:27:19,932 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=643, PETRI_PLACES=78, PETRI_TRANSITIONS=64} [2024-10-24 19:27:19,932 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 52 predicate places. [2024-10-24 19:27:19,932 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 64 transitions, 643 flow [2024-10-24 19:27:19,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:19,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:19,933 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:19,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 19:27:19,933 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:19,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:19,935 INFO L85 PathProgramCache]: Analyzing trace with hash 322513067, now seen corresponding path program 15 times [2024-10-24 19:27:19,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:19,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662146523] [2024-10-24 19:27:19,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:19,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:19,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:20,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:20,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:20,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662146523] [2024-10-24 19:27:20,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662146523] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:20,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:20,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:20,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592787631] [2024-10-24 19:27:20,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:20,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:20,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:20,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:20,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:20,046 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:20,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 64 transitions, 643 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:20,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:20,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:20,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:20,241 INFO L124 PetriNetUnfolderBase]: 164/293 cut-off events. [2024-10-24 19:27:20,241 INFO L125 PetriNetUnfolderBase]: For 1473/1473 co-relation queries the response was YES. [2024-10-24 19:27:20,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1389 conditions, 293 events. 164/293 cut-off events. For 1473/1473 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 975 event pairs, 20 based on Foata normal form. 1/294 useless extension candidates. Maximal degree in co-relation 1358. Up to 163 conditions per place. [2024-10-24 19:27:20,244 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 49 selfloop transitions, 24 changer transitions 11/85 dead transitions. [2024-10-24 19:27:20,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 85 transitions, 942 flow [2024-10-24 19:27:20,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:20,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:20,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 90 transitions. [2024-10-24 19:27:20,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2024-10-24 19:27:20,246 INFO L175 Difference]: Start difference. First operand has 78 places, 64 transitions, 643 flow. Second operand 9 states and 90 transitions. [2024-10-24 19:27:20,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 85 transitions, 942 flow [2024-10-24 19:27:20,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 85 transitions, 859 flow, removed 11 selfloop flow, removed 7 redundant places. [2024-10-24 19:27:20,253 INFO L231 Difference]: Finished difference. Result has 79 places, 62 transitions, 592 flow [2024-10-24 19:27:20,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=565, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=592, PETRI_PLACES=79, PETRI_TRANSITIONS=62} [2024-10-24 19:27:20,254 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 53 predicate places. [2024-10-24 19:27:20,254 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 62 transitions, 592 flow [2024-10-24 19:27:20,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:20,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:20,255 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:20,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 19:27:20,255 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:20,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:20,255 INFO L85 PathProgramCache]: Analyzing trace with hash -2022059101, now seen corresponding path program 16 times [2024-10-24 19:27:20,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:20,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660535006] [2024-10-24 19:27:20,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:20,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:20,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:20,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:20,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660535006] [2024-10-24 19:27:20,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660535006] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:20,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:20,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:20,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970229051] [2024-10-24 19:27:20,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:20,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:20,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:20,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:20,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:20,360 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:20,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 62 transitions, 592 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:20,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:20,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:20,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:20,587 INFO L124 PetriNetUnfolderBase]: 172/305 cut-off events. [2024-10-24 19:27:20,588 INFO L125 PetriNetUnfolderBase]: For 1365/1365 co-relation queries the response was YES. [2024-10-24 19:27:20,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1379 conditions, 305 events. 172/305 cut-off events. For 1365/1365 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1022 event pairs, 22 based on Foata normal form. 1/306 useless extension candidates. Maximal degree in co-relation 1349. Up to 166 conditions per place. [2024-10-24 19:27:20,590 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 47 selfloop transitions, 28 changer transitions 10/86 dead transitions. [2024-10-24 19:27:20,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 86 transitions, 886 flow [2024-10-24 19:27:20,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:20,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:20,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 96 transitions. [2024-10-24 19:27:20,591 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-10-24 19:27:20,591 INFO L175 Difference]: Start difference. First operand has 79 places, 62 transitions, 592 flow. Second operand 9 states and 96 transitions. [2024-10-24 19:27:20,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 86 transitions, 886 flow [2024-10-24 19:27:20,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 86 transitions, 834 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-10-24 19:27:20,597 INFO L231 Difference]: Finished difference. Result has 79 places, 63 transitions, 618 flow [2024-10-24 19:27:20,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=618, PETRI_PLACES=79, PETRI_TRANSITIONS=63} [2024-10-24 19:27:20,598 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 53 predicate places. [2024-10-24 19:27:20,598 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 63 transitions, 618 flow [2024-10-24 19:27:20,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:20,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:20,598 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:20,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 19:27:20,598 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:20,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:20,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1359323843, now seen corresponding path program 17 times [2024-10-24 19:27:20,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:20,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126263433] [2024-10-24 19:27:20,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:20,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:20,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:20,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:20,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126263433] [2024-10-24 19:27:20,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126263433] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:20,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:20,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:20,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174760055] [2024-10-24 19:27:20,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:20,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:20,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:20,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:20,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:20,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:20,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 63 transitions, 618 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:20,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:20,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:20,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:20,923 INFO L124 PetriNetUnfolderBase]: 166/298 cut-off events. [2024-10-24 19:27:20,924 INFO L125 PetriNetUnfolderBase]: For 1428/1428 co-relation queries the response was YES. [2024-10-24 19:27:20,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1375 conditions, 298 events. 166/298 cut-off events. For 1428/1428 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 991 event pairs, 24 based on Foata normal form. 1/299 useless extension candidates. Maximal degree in co-relation 1344. Up to 171 conditions per place. [2024-10-24 19:27:20,926 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 44 selfloop transitions, 26 changer transitions 11/82 dead transitions. [2024-10-24 19:27:20,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 82 transitions, 876 flow [2024-10-24 19:27:20,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:20,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:20,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 92 transitions. [2024-10-24 19:27:20,927 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-10-24 19:27:20,927 INFO L175 Difference]: Start difference. First operand has 79 places, 63 transitions, 618 flow. Second operand 9 states and 92 transitions. [2024-10-24 19:27:20,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 82 transitions, 876 flow [2024-10-24 19:27:20,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 82 transitions, 806 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-10-24 19:27:20,933 INFO L231 Difference]: Finished difference. Result has 80 places, 61 transitions, 579 flow [2024-10-24 19:27:20,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=579, PETRI_PLACES=80, PETRI_TRANSITIONS=61} [2024-10-24 19:27:20,933 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 54 predicate places. [2024-10-24 19:27:20,933 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 61 transitions, 579 flow [2024-10-24 19:27:20,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:20,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:20,934 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:20,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 19:27:20,934 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:20,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:20,935 INFO L85 PathProgramCache]: Analyzing trace with hash -2107027255, now seen corresponding path program 18 times [2024-10-24 19:27:20,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:20,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299652808] [2024-10-24 19:27:20,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:20,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:21,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:21,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:21,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299652808] [2024-10-24 19:27:21,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299652808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:21,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:21,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:21,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973627550] [2024-10-24 19:27:21,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:21,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:21,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:21,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:21,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:21,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:21,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 61 transitions, 579 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:21,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:21,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:21,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:21,234 INFO L124 PetriNetUnfolderBase]: 171/305 cut-off events. [2024-10-24 19:27:21,234 INFO L125 PetriNetUnfolderBase]: For 1444/1444 co-relation queries the response was YES. [2024-10-24 19:27:21,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1375 conditions, 305 events. 171/305 cut-off events. For 1444/1444 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1029 event pairs, 24 based on Foata normal form. 1/306 useless extension candidates. Maximal degree in co-relation 1344. Up to 173 conditions per place. [2024-10-24 19:27:21,237 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 51 selfloop transitions, 24 changer transitions 9/85 dead transitions. [2024-10-24 19:27:21,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 85 transitions, 903 flow [2024-10-24 19:27:21,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:21,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:21,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 91 transitions. [2024-10-24 19:27:21,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4212962962962963 [2024-10-24 19:27:21,238 INFO L175 Difference]: Start difference. First operand has 80 places, 61 transitions, 579 flow. Second operand 9 states and 91 transitions. [2024-10-24 19:27:21,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 85 transitions, 903 flow [2024-10-24 19:27:21,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 85 transitions, 843 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-10-24 19:27:21,243 INFO L231 Difference]: Finished difference. Result has 80 places, 62 transitions, 595 flow [2024-10-24 19:27:21,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=595, PETRI_PLACES=80, PETRI_TRANSITIONS=62} [2024-10-24 19:27:21,244 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 54 predicate places. [2024-10-24 19:27:21,244 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 62 transitions, 595 flow [2024-10-24 19:27:21,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:21,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:21,244 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:21,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 19:27:21,244 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:21,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:21,245 INFO L85 PathProgramCache]: Analyzing trace with hash 506103131, now seen corresponding path program 19 times [2024-10-24 19:27:21,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:21,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605795530] [2024-10-24 19:27:21,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:21,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:21,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:21,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:21,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605795530] [2024-10-24 19:27:21,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605795530] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:21,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:21,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:21,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210198716] [2024-10-24 19:27:21,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:21,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:21,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:21,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:21,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:21,357 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:21,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 62 transitions, 595 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:21,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:21,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:21,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:21,551 INFO L124 PetriNetUnfolderBase]: 179/321 cut-off events. [2024-10-24 19:27:21,551 INFO L125 PetriNetUnfolderBase]: For 1704/1704 co-relation queries the response was YES. [2024-10-24 19:27:21,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1468 conditions, 321 events. 179/321 cut-off events. For 1704/1704 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1122 event pairs, 20 based on Foata normal form. 1/322 useless extension candidates. Maximal degree in co-relation 1436. Up to 183 conditions per place. [2024-10-24 19:27:21,554 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 47 selfloop transitions, 28 changer transitions 9/85 dead transitions. [2024-10-24 19:27:21,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 85 transitions, 900 flow [2024-10-24 19:27:21,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:21,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:21,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-10-24 19:27:21,555 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-10-24 19:27:21,555 INFO L175 Difference]: Start difference. First operand has 80 places, 62 transitions, 595 flow. Second operand 9 states and 94 transitions. [2024-10-24 19:27:21,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 85 transitions, 900 flow [2024-10-24 19:27:21,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 85 transitions, 830 flow, removed 12 selfloop flow, removed 7 redundant places. [2024-10-24 19:27:21,561 INFO L231 Difference]: Finished difference. Result has 82 places, 64 transitions, 620 flow [2024-10-24 19:27:21,561 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=620, PETRI_PLACES=82, PETRI_TRANSITIONS=64} [2024-10-24 19:27:21,562 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 56 predicate places. [2024-10-24 19:27:21,562 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 64 transitions, 620 flow [2024-10-24 19:27:21,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:21,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:21,562 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:21,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 19:27:21,563 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:21,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:21,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1820902075, now seen corresponding path program 20 times [2024-10-24 19:27:21,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:21,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581300722] [2024-10-24 19:27:21,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:21,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:21,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:21,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:21,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581300722] [2024-10-24 19:27:21,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581300722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:21,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:21,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:27:21,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150433125] [2024-10-24 19:27:21,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:21,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:21,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:21,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:21,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:27:21,661 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:21,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 64 transitions, 620 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:21,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:21,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:21,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:21,874 INFO L124 PetriNetUnfolderBase]: 171/309 cut-off events. [2024-10-24 19:27:21,875 INFO L125 PetriNetUnfolderBase]: For 1742/1742 co-relation queries the response was YES. [2024-10-24 19:27:21,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1425 conditions, 309 events. 171/309 cut-off events. For 1742/1742 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1065 event pairs, 23 based on Foata normal form. 1/310 useless extension candidates. Maximal degree in co-relation 1392. Up to 185 conditions per place. [2024-10-24 19:27:21,877 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 46 selfloop transitions, 24 changer transitions 11/82 dead transitions. [2024-10-24 19:27:21,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 82 transitions, 883 flow [2024-10-24 19:27:21,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:21,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 91 transitions. [2024-10-24 19:27:21,878 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4212962962962963 [2024-10-24 19:27:21,879 INFO L175 Difference]: Start difference. First operand has 82 places, 64 transitions, 620 flow. Second operand 9 states and 91 transitions. [2024-10-24 19:27:21,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 82 transitions, 883 flow [2024-10-24 19:27:21,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 82 transitions, 811 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-10-24 19:27:21,885 INFO L231 Difference]: Finished difference. Result has 82 places, 61 transitions, 566 flow [2024-10-24 19:27:21,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=566, PETRI_PLACES=82, PETRI_TRANSITIONS=61} [2024-10-24 19:27:21,885 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 56 predicate places. [2024-10-24 19:27:21,886 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 61 transitions, 566 flow [2024-10-24 19:27:21,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:21,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:21,886 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:21,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 19:27:21,887 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:21,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:21,887 INFO L85 PathProgramCache]: Analyzing trace with hash -741185840, now seen corresponding path program 1 times [2024-10-24 19:27:21,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:21,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469997200] [2024-10-24 19:27:21,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:21,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:21,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:21,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:21,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469997200] [2024-10-24 19:27:21,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469997200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:21,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:21,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:27:21,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406641330] [2024-10-24 19:27:21,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:21,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:27:21,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:21,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:27:21,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:27:21,952 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-24 19:27:21,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 61 transitions, 566 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:21,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:21,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-24 19:27:21,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:22,087 INFO L124 PetriNetUnfolderBase]: 212/412 cut-off events. [2024-10-24 19:27:22,089 INFO L125 PetriNetUnfolderBase]: For 2589/2591 co-relation queries the response was YES. [2024-10-24 19:27:22,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1920 conditions, 412 events. 212/412 cut-off events. For 2589/2591 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1793 event pairs, 26 based on Foata normal form. 14/424 useless extension candidates. Maximal degree in co-relation 1884. Up to 112 conditions per place. [2024-10-24 19:27:22,092 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 56 selfloop transitions, 28 changer transitions 4/103 dead transitions. [2024-10-24 19:27:22,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 103 transitions, 1071 flow [2024-10-24 19:27:22,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:27:22,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:27:22,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions. [2024-10-24 19:27:22,093 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-10-24 19:27:22,094 INFO L175 Difference]: Start difference. First operand has 82 places, 61 transitions, 566 flow. Second operand 7 states and 91 transitions. [2024-10-24 19:27:22,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 103 transitions, 1071 flow [2024-10-24 19:27:22,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 103 transitions, 1011 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-10-24 19:27:22,100 INFO L231 Difference]: Finished difference. Result has 82 places, 74 transitions, 793 flow [2024-10-24 19:27:22,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=793, PETRI_PLACES=82, PETRI_TRANSITIONS=74} [2024-10-24 19:27:22,101 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 56 predicate places. [2024-10-24 19:27:22,101 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 74 transitions, 793 flow [2024-10-24 19:27:22,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:22,101 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:22,101 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:22,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 19:27:22,102 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:22,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:22,102 INFO L85 PathProgramCache]: Analyzing trace with hash 2001057560, now seen corresponding path program 2 times [2024-10-24 19:27:22,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:22,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214033368] [2024-10-24 19:27:22,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:22,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:22,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:22,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:22,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214033368] [2024-10-24 19:27:22,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214033368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:22,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:22,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:27:22,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695156950] [2024-10-24 19:27:22,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:22,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:27:22,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:22,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:27:22,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:27:22,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-24 19:27:22,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 74 transitions, 793 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:22,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:22,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-24 19:27:22,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:22,259 INFO L124 PetriNetUnfolderBase]: 235/461 cut-off events. [2024-10-24 19:27:22,259 INFO L125 PetriNetUnfolderBase]: For 4075/4077 co-relation queries the response was YES. [2024-10-24 19:27:22,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2332 conditions, 461 events. 235/461 cut-off events. For 4075/4077 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2037 event pairs, 51 based on Foata normal form. 10/467 useless extension candidates. Maximal degree in co-relation 2167. Up to 206 conditions per place. [2024-10-24 19:27:22,264 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 67 selfloop transitions, 21 changer transitions 0/103 dead transitions. [2024-10-24 19:27:22,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 103 transitions, 1164 flow [2024-10-24 19:27:22,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:27:22,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:27:22,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2024-10-24 19:27:22,265 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6416666666666667 [2024-10-24 19:27:22,265 INFO L175 Difference]: Start difference. First operand has 82 places, 74 transitions, 793 flow. Second operand 5 states and 77 transitions. [2024-10-24 19:27:22,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 103 transitions, 1164 flow [2024-10-24 19:27:22,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 103 transitions, 1069 flow, removed 35 selfloop flow, removed 3 redundant places. [2024-10-24 19:27:22,276 INFO L231 Difference]: Finished difference. Result has 86 places, 80 transitions, 860 flow [2024-10-24 19:27:22,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=860, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2024-10-24 19:27:22,277 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 60 predicate places. [2024-10-24 19:27:22,277 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 860 flow [2024-10-24 19:27:22,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:22,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:22,277 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:22,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 19:27:22,277 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:22,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:22,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1294786963, now seen corresponding path program 1 times [2024-10-24 19:27:22,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:22,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613490375] [2024-10-24 19:27:22,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:22,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:22,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:22,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:22,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613490375] [2024-10-24 19:27:22,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613490375] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:22,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355267724] [2024-10-24 19:27:22,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:22,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:22,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:22,315 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) [2024-10-24 19:27:22,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 19:27:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:22,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 19:27:22,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:22,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:22,405 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:22,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:22,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355267724] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:22,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-24 19:27:22,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2024-10-24 19:27:22,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419708594] [2024-10-24 19:27:22,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:22,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:27:22,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:22,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:27:22,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 19:27:22,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-24 19:27:22,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 80 transitions, 860 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:22,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:22,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-24 19:27:22,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:22,633 INFO L124 PetriNetUnfolderBase]: 313/649 cut-off events. [2024-10-24 19:27:22,633 INFO L125 PetriNetUnfolderBase]: For 4566/4574 co-relation queries the response was YES. [2024-10-24 19:27:22,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3083 conditions, 649 events. 313/649 cut-off events. For 4566/4574 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3356 event pairs, 18 based on Foata normal form. 17/662 useless extension candidates. Maximal degree in co-relation 2653. Up to 291 conditions per place. [2024-10-24 19:27:22,639 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 62 selfloop transitions, 34 changer transitions 0/111 dead transitions. [2024-10-24 19:27:22,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 111 transitions, 1289 flow [2024-10-24 19:27:22,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:27:22,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:27:22,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2024-10-24 19:27:22,640 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-10-24 19:27:22,640 INFO L175 Difference]: Start difference. First operand has 86 places, 80 transitions, 860 flow. Second operand 5 states and 76 transitions. [2024-10-24 19:27:22,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 111 transitions, 1289 flow [2024-10-24 19:27:22,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 111 transitions, 1218 flow, removed 27 selfloop flow, removed 1 redundant places. [2024-10-24 19:27:22,653 INFO L231 Difference]: Finished difference. Result has 92 places, 87 transitions, 1040 flow [2024-10-24 19:27:22,654 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1040, PETRI_PLACES=92, PETRI_TRANSITIONS=87} [2024-10-24 19:27:22,654 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 66 predicate places. [2024-10-24 19:27:22,654 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 87 transitions, 1040 flow [2024-10-24 19:27:22,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:22,655 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:22,655 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:22,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 19:27:22,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-24 19:27:22,860 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:22,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:22,860 INFO L85 PathProgramCache]: Analyzing trace with hash 333099746, now seen corresponding path program 3 times [2024-10-24 19:27:22,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:22,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418623573] [2024-10-24 19:27:22,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:22,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:22,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:22,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:22,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418623573] [2024-10-24 19:27:22,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418623573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:22,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:22,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:27:22,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020886134] [2024-10-24 19:27:22,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:22,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:27:22,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:22,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:27:22,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:27:22,908 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-24 19:27:22,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 87 transitions, 1040 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:22,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:22,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-24 19:27:22,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:23,076 INFO L124 PetriNetUnfolderBase]: 307/641 cut-off events. [2024-10-24 19:27:23,076 INFO L125 PetriNetUnfolderBase]: For 4835/4844 co-relation queries the response was YES. [2024-10-24 19:27:23,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3142 conditions, 641 events. 307/641 cut-off events. For 4835/4844 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3321 event pairs, 40 based on Foata normal form. 16/657 useless extension candidates. Maximal degree in co-relation 2971. Up to 154 conditions per place. [2024-10-24 19:27:23,081 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 72 selfloop transitions, 30 changer transitions 4/121 dead transitions. [2024-10-24 19:27:23,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 121 transitions, 1462 flow [2024-10-24 19:27:23,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:27:23,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:27:23,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 107 transitions. [2024-10-24 19:27:23,082 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5572916666666666 [2024-10-24 19:27:23,082 INFO L175 Difference]: Start difference. First operand has 92 places, 87 transitions, 1040 flow. Second operand 8 states and 107 transitions. [2024-10-24 19:27:23,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 121 transitions, 1462 flow [2024-10-24 19:27:23,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 121 transitions, 1436 flow, removed 11 selfloop flow, removed 1 redundant places. [2024-10-24 19:27:23,095 INFO L231 Difference]: Finished difference. Result has 99 places, 86 transitions, 1081 flow [2024-10-24 19:27:23,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1081, PETRI_PLACES=99, PETRI_TRANSITIONS=86} [2024-10-24 19:27:23,095 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 73 predicate places. [2024-10-24 19:27:23,096 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 86 transitions, 1081 flow [2024-10-24 19:27:23,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:23,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:23,096 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:23,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-24 19:27:23,096 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:23,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:23,097 INFO L85 PathProgramCache]: Analyzing trace with hash -511077783, now seen corresponding path program 2 times [2024-10-24 19:27:23,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:23,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867160578] [2024-10-24 19:27:23,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:23,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:23,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:23,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:23,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867160578] [2024-10-24 19:27:23,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867160578] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:23,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:23,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:27:23,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774870271] [2024-10-24 19:27:23,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:23,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:27:23,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:23,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:27:23,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:27:23,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-24 19:27:23,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 86 transitions, 1081 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:23,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:23,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-24 19:27:23,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:23,264 INFO L124 PetriNetUnfolderBase]: 271/569 cut-off events. [2024-10-24 19:27:23,264 INFO L125 PetriNetUnfolderBase]: For 4562/4570 co-relation queries the response was YES. [2024-10-24 19:27:23,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2912 conditions, 569 events. 271/569 cut-off events. For 4562/4570 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2866 event pairs, 19 based on Foata normal form. 20/585 useless extension candidates. Maximal degree in co-relation 2753. Up to 170 conditions per place. [2024-10-24 19:27:23,269 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 64 selfloop transitions, 24 changer transitions 3/105 dead transitions. [2024-10-24 19:27:23,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 105 transitions, 1396 flow [2024-10-24 19:27:23,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:27:23,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:27:23,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 80 transitions. [2024-10-24 19:27:23,270 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-10-24 19:27:23,270 INFO L175 Difference]: Start difference. First operand has 99 places, 86 transitions, 1081 flow. Second operand 6 states and 80 transitions. [2024-10-24 19:27:23,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 105 transitions, 1396 flow [2024-10-24 19:27:23,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 105 transitions, 1340 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-10-24 19:27:23,282 INFO L231 Difference]: Finished difference. Result has 102 places, 79 transitions, 987 flow [2024-10-24 19:27:23,282 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=969, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=987, PETRI_PLACES=102, PETRI_TRANSITIONS=79} [2024-10-24 19:27:23,283 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 76 predicate places. [2024-10-24 19:27:23,283 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 79 transitions, 987 flow [2024-10-24 19:27:23,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:23,283 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:23,283 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:23,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-24 19:27:23,283 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:23,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:23,284 INFO L85 PathProgramCache]: Analyzing trace with hash -111371070, now seen corresponding path program 4 times [2024-10-24 19:27:23,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:23,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924488787] [2024-10-24 19:27:23,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:23,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:23,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:23,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:23,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924488787] [2024-10-24 19:27:23,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924488787] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:23,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:23,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:27:23,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117952396] [2024-10-24 19:27:23,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:23,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:27:23,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:23,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:27:23,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:27:23,328 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-24 19:27:23,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 79 transitions, 987 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:23,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:23,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-24 19:27:23,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:23,441 INFO L124 PetriNetUnfolderBase]: 242/495 cut-off events. [2024-10-24 19:27:23,441 INFO L125 PetriNetUnfolderBase]: For 4514/4520 co-relation queries the response was YES. [2024-10-24 19:27:23,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2537 conditions, 495 events. 242/495 cut-off events. For 4514/4520 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2309 event pairs, 34 based on Foata normal form. 14/505 useless extension candidates. Maximal degree in co-relation 2422. Up to 271 conditions per place. [2024-10-24 19:27:23,446 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 58 selfloop transitions, 21 changer transitions 1/94 dead transitions. [2024-10-24 19:27:23,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 94 transitions, 1192 flow [2024-10-24 19:27:23,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:27:23,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:27:23,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions. [2024-10-24 19:27:23,447 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-10-24 19:27:23,447 INFO L175 Difference]: Start difference. First operand has 102 places, 79 transitions, 987 flow. Second operand 5 states and 70 transitions. [2024-10-24 19:27:23,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 94 transitions, 1192 flow [2024-10-24 19:27:23,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 94 transitions, 1140 flow, removed 13 selfloop flow, removed 6 redundant places. [2024-10-24 19:27:23,458 INFO L231 Difference]: Finished difference. Result has 99 places, 77 transitions, 927 flow [2024-10-24 19:27:23,458 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=889, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=927, PETRI_PLACES=99, PETRI_TRANSITIONS=77} [2024-10-24 19:27:23,459 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 73 predicate places. [2024-10-24 19:27:23,459 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 77 transitions, 927 flow [2024-10-24 19:27:23,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:23,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:23,459 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:23,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-24 19:27:23,459 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:23,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:23,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1610813881, now seen corresponding path program 3 times [2024-10-24 19:27:23,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:23,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962992968] [2024-10-24 19:27:23,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:23,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:23,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:23,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:23,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962992968] [2024-10-24 19:27:23,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962992968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:23,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:23,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:27:23,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016702488] [2024-10-24 19:27:23,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:23,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:27:23,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:23,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:27:23,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:27:23,501 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-24 19:27:23,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 77 transitions, 927 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:23,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:23,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-24 19:27:23,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:23,639 INFO L124 PetriNetUnfolderBase]: 313/620 cut-off events. [2024-10-24 19:27:23,639 INFO L125 PetriNetUnfolderBase]: For 5362/5364 co-relation queries the response was YES. [2024-10-24 19:27:23,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3232 conditions, 620 events. 313/620 cut-off events. For 5362/5364 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3080 event pairs, 92 based on Foata normal form. 11/620 useless extension candidates. Maximal degree in co-relation 3066. Up to 373 conditions per place. [2024-10-24 19:27:23,644 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 68 selfloop transitions, 31 changer transitions 0/113 dead transitions. [2024-10-24 19:27:23,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 113 transitions, 1493 flow [2024-10-24 19:27:23,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:27:23,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:27:23,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2024-10-24 19:27:23,645 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2024-10-24 19:27:23,645 INFO L175 Difference]: Start difference. First operand has 99 places, 77 transitions, 927 flow. Second operand 5 states and 73 transitions. [2024-10-24 19:27:23,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 113 transitions, 1493 flow [2024-10-24 19:27:23,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 113 transitions, 1410 flow, removed 15 selfloop flow, removed 9 redundant places. [2024-10-24 19:27:23,656 INFO L231 Difference]: Finished difference. Result has 97 places, 92 transitions, 1212 flow [2024-10-24 19:27:23,656 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1212, PETRI_PLACES=97, PETRI_TRANSITIONS=92} [2024-10-24 19:27:23,657 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 71 predicate places. [2024-10-24 19:27:23,657 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 92 transitions, 1212 flow [2024-10-24 19:27:23,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:23,657 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:23,657 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:23,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 19:27:23,657 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:23,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:23,658 INFO L85 PathProgramCache]: Analyzing trace with hash 733440583, now seen corresponding path program 4 times [2024-10-24 19:27:23,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:23,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205625144] [2024-10-24 19:27:23,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:23,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:23,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:23,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:23,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205625144] [2024-10-24 19:27:23,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205625144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:23,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:23,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:27:23,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143356895] [2024-10-24 19:27:23,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:23,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:27:23,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:23,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:27:23,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:27:23,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-24 19:27:23,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 92 transitions, 1212 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:23,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:23,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-24 19:27:23,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:23,833 INFO L124 PetriNetUnfolderBase]: 297/605 cut-off events. [2024-10-24 19:27:23,834 INFO L125 PetriNetUnfolderBase]: For 5127/5129 co-relation queries the response was YES. [2024-10-24 19:27:23,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3230 conditions, 605 events. 297/605 cut-off events. For 5127/5129 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3040 event pairs, 55 based on Foata normal form. 12/612 useless extension candidates. Maximal degree in co-relation 2374. Up to 222 conditions per place. [2024-10-24 19:27:23,839 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 65 selfloop transitions, 32 changer transitions 3/114 dead transitions. [2024-10-24 19:27:23,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 114 transitions, 1564 flow [2024-10-24 19:27:23,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:27:23,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:27:23,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 87 transitions. [2024-10-24 19:27:23,841 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5178571428571429 [2024-10-24 19:27:23,841 INFO L175 Difference]: Start difference. First operand has 97 places, 92 transitions, 1212 flow. Second operand 7 states and 87 transitions. [2024-10-24 19:27:23,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 114 transitions, 1564 flow [2024-10-24 19:27:23,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 114 transitions, 1544 flow, removed 10 selfloop flow, removed 0 redundant places. [2024-10-24 19:27:23,853 INFO L231 Difference]: Finished difference. Result has 104 places, 92 transitions, 1266 flow [2024-10-24 19:27:23,854 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1151, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1266, PETRI_PLACES=104, PETRI_TRANSITIONS=92} [2024-10-24 19:27:23,854 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 78 predicate places. [2024-10-24 19:27:23,857 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 92 transitions, 1266 flow [2024-10-24 19:27:23,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:23,857 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:23,857 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:23,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-24 19:27:23,858 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:23,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:23,858 INFO L85 PathProgramCache]: Analyzing trace with hash 107556206, now seen corresponding path program 5 times [2024-10-24 19:27:23,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:23,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818820862] [2024-10-24 19:27:23,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:23,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:23,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:23,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:23,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818820862] [2024-10-24 19:27:23,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818820862] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:23,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:23,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:27:23,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057585614] [2024-10-24 19:27:23,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:23,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:27:23,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:23,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:27:23,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:27:23,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-24 19:27:23,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 92 transitions, 1266 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:23,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:23,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-24 19:27:23,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:24,021 INFO L124 PetriNetUnfolderBase]: 255/519 cut-off events. [2024-10-24 19:27:24,021 INFO L125 PetriNetUnfolderBase]: For 4772/4772 co-relation queries the response was YES. [2024-10-24 19:27:24,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2881 conditions, 519 events. 255/519 cut-off events. For 4772/4772 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2444 event pairs, 20 based on Foata normal form. 14/531 useless extension candidates. Maximal degree in co-relation 2440. Up to 159 conditions per place. [2024-10-24 19:27:24,027 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 68 selfloop transitions, 22 changer transitions 3/106 dead transitions. [2024-10-24 19:27:24,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 106 transitions, 1507 flow [2024-10-24 19:27:24,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:27:24,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:27:24,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 78 transitions. [2024-10-24 19:27:24,029 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-10-24 19:27:24,029 INFO L175 Difference]: Start difference. First operand has 104 places, 92 transitions, 1266 flow. Second operand 6 states and 78 transitions. [2024-10-24 19:27:24,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 106 transitions, 1507 flow [2024-10-24 19:27:24,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 106 transitions, 1438 flow, removed 14 selfloop flow, removed 3 redundant places. [2024-10-24 19:27:24,041 INFO L231 Difference]: Finished difference. Result has 105 places, 83 transitions, 1101 flow [2024-10-24 19:27:24,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1109, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1101, PETRI_PLACES=105, PETRI_TRANSITIONS=83} [2024-10-24 19:27:24,042 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 79 predicate places. [2024-10-24 19:27:24,042 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 83 transitions, 1101 flow [2024-10-24 19:27:24,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:24,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:24,043 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:24,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-24 19:27:24,043 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:24,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:24,045 INFO L85 PathProgramCache]: Analyzing trace with hash 81766419, now seen corresponding path program 5 times [2024-10-24 19:27:24,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:24,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502327225] [2024-10-24 19:27:24,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:24,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:24,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:24,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:24,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502327225] [2024-10-24 19:27:24,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502327225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:24,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:27:24,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:27:24,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032786595] [2024-10-24 19:27:24,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:24,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:27:24,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:24,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:27:24,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:27:24,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-24 19:27:24,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 83 transitions, 1101 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:24,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:24,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-24 19:27:24,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:24,236 INFO L124 PetriNetUnfolderBase]: 225/443 cut-off events. [2024-10-24 19:27:24,237 INFO L125 PetriNetUnfolderBase]: For 4544/4544 co-relation queries the response was YES. [2024-10-24 19:27:24,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2539 conditions, 443 events. 225/443 cut-off events. For 4544/4544 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1953 event pairs, 40 based on Foata normal form. 6/445 useless extension candidates. Maximal degree in co-relation 2133. Up to 146 conditions per place. [2024-10-24 19:27:24,242 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 61 selfloop transitions, 27 changer transitions 2/103 dead transitions. [2024-10-24 19:27:24,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 103 transitions, 1373 flow [2024-10-24 19:27:24,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:27:24,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:27:24,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 99 transitions. [2024-10-24 19:27:24,243 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.515625 [2024-10-24 19:27:24,243 INFO L175 Difference]: Start difference. First operand has 105 places, 83 transitions, 1101 flow. Second operand 8 states and 99 transitions. [2024-10-24 19:27:24,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 103 transitions, 1373 flow [2024-10-24 19:27:24,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 103 transitions, 1298 flow, removed 7 selfloop flow, removed 6 redundant places. [2024-10-24 19:27:24,253 INFO L231 Difference]: Finished difference. Result has 102 places, 78 transitions, 1013 flow [2024-10-24 19:27:24,254 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1013, PETRI_PLACES=102, PETRI_TRANSITIONS=78} [2024-10-24 19:27:24,254 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 76 predicate places. [2024-10-24 19:27:24,254 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 78 transitions, 1013 flow [2024-10-24 19:27:24,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:24,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:24,255 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:24,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 19:27:24,256 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:24,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:24,256 INFO L85 PathProgramCache]: Analyzing trace with hash -2142470050, now seen corresponding path program 1 times [2024-10-24 19:27:24,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:24,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959527395] [2024-10-24 19:27:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:24,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:24,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:24,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:24,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959527395] [2024-10-24 19:27:24,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959527395] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:24,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752058912] [2024-10-24 19:27:24,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:24,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:24,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:24,377 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) [2024-10-24 19:27:24,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 19:27:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:24,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:24,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:24,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:24,570 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:24,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:24,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752058912] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:24,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:24,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-24 19:27:24,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084927077] [2024-10-24 19:27:24,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:24,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 19:27:24,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:24,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 19:27:24,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2024-10-24 19:27:24,917 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:24,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 78 transitions, 1013 flow. Second operand has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:24,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:24,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:24,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:26,230 INFO L124 PetriNetUnfolderBase]: 677/1270 cut-off events. [2024-10-24 19:27:26,230 INFO L125 PetriNetUnfolderBase]: For 9595/9595 co-relation queries the response was YES. [2024-10-24 19:27:26,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6314 conditions, 1270 events. 677/1270 cut-off events. For 9595/9595 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6780 event pairs, 35 based on Foata normal form. 2/1272 useless extension candidates. Maximal degree in co-relation 5740. Up to 236 conditions per place. [2024-10-24 19:27:26,239 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 128 selfloop transitions, 85 changer transitions 64/278 dead transitions. [2024-10-24 19:27:26,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 278 transitions, 3312 flow [2024-10-24 19:27:26,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-24 19:27:26,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2024-10-24 19:27:26,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 346 transitions. [2024-10-24 19:27:26,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40046296296296297 [2024-10-24 19:27:26,241 INFO L175 Difference]: Start difference. First operand has 102 places, 78 transitions, 1013 flow. Second operand 36 states and 346 transitions. [2024-10-24 19:27:26,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 278 transitions, 3312 flow [2024-10-24 19:27:26,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 278 transitions, 3126 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-10-24 19:27:26,256 INFO L231 Difference]: Finished difference. Result has 150 places, 126 transitions, 1933 flow [2024-10-24 19:27:26,257 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=1933, PETRI_PLACES=150, PETRI_TRANSITIONS=126} [2024-10-24 19:27:26,257 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 124 predicate places. [2024-10-24 19:27:26,257 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 126 transitions, 1933 flow [2024-10-24 19:27:26,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:26,258 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:26,258 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:26,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 19:27:26,458 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,SelfDestructingSolverStorable30 [2024-10-24 19:27:26,459 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:26,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:26,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1599077694, now seen corresponding path program 2 times [2024-10-24 19:27:26,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:26,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091467787] [2024-10-24 19:27:26,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:26,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:26,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:26,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:26,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091467787] [2024-10-24 19:27:26,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091467787] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:26,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46710366] [2024-10-24 19:27:26,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 19:27:26,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:26,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:26,582 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) [2024-10-24 19:27:26,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 19:27:26,629 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 19:27:26,630 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:26,630 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:26,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:26,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:26,759 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:26,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:26,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46710366] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:26,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:26,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-24 19:27:26,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154783128] [2024-10-24 19:27:26,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:26,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 19:27:26,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:26,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 19:27:26,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-10-24 19:27:26,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:26,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 126 transitions, 1933 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:26,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:26,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:26,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:27,614 INFO L124 PetriNetUnfolderBase]: 749/1478 cut-off events. [2024-10-24 19:27:27,615 INFO L125 PetriNetUnfolderBase]: For 12740/12740 co-relation queries the response was YES. [2024-10-24 19:27:27,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7669 conditions, 1478 events. 749/1478 cut-off events. For 12740/12740 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 8648 event pairs, 98 based on Foata normal form. 3/1481 useless extension candidates. Maximal degree in co-relation 7571. Up to 612 conditions per place. [2024-10-24 19:27:27,628 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 101 selfloop transitions, 97 changer transitions 16/215 dead transitions. [2024-10-24 19:27:27,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 215 transitions, 3317 flow [2024-10-24 19:27:27,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 19:27:27,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 19:27:27,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 142 transitions. [2024-10-24 19:27:27,630 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4226190476190476 [2024-10-24 19:27:27,630 INFO L175 Difference]: Start difference. First operand has 150 places, 126 transitions, 1933 flow. Second operand 14 states and 142 transitions. [2024-10-24 19:27:27,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 215 transitions, 3317 flow [2024-10-24 19:27:27,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 215 transitions, 2795 flow, removed 182 selfloop flow, removed 16 redundant places. [2024-10-24 19:27:27,669 INFO L231 Difference]: Finished difference. Result has 141 places, 158 transitions, 2239 flow [2024-10-24 19:27:27,669 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1586, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2239, PETRI_PLACES=141, PETRI_TRANSITIONS=158} [2024-10-24 19:27:27,670 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 115 predicate places. [2024-10-24 19:27:27,670 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 158 transitions, 2239 flow [2024-10-24 19:27:27,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:27,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:27,671 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:27,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 19:27:27,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:27,875 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:27,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:27,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1350276192, now seen corresponding path program 3 times [2024-10-24 19:27:27,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:27,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995951226] [2024-10-24 19:27:27,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:27,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:27,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:27,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:27,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995951226] [2024-10-24 19:27:28,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995951226] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:28,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667498588] [2024-10-24 19:27:28,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 19:27:28,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:28,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:28,002 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) [2024-10-24 19:27:28,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 19:27:28,048 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 19:27:28,049 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:28,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:28,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:28,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:28,180 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:28,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:28,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667498588] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:28,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:28,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-24 19:27:28,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096358298] [2024-10-24 19:27:28,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:28,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 19:27:28,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:28,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 19:27:28,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-10-24 19:27:28,393 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:28,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 158 transitions, 2239 flow. Second operand has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:28,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:28,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:28,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:29,018 INFO L124 PetriNetUnfolderBase]: 893/1746 cut-off events. [2024-10-24 19:27:29,019 INFO L125 PetriNetUnfolderBase]: For 14174/14174 co-relation queries the response was YES. [2024-10-24 19:27:29,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8734 conditions, 1746 events. 893/1746 cut-off events. For 14174/14174 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 10518 event pairs, 81 based on Foata normal form. 6/1752 useless extension candidates. Maximal degree in co-relation 8610. Up to 438 conditions per place. [2024-10-24 19:27:29,052 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 88 selfloop transitions, 142 changer transitions 27/258 dead transitions. [2024-10-24 19:27:29,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 258 transitions, 3838 flow [2024-10-24 19:27:29,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 19:27:29,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-24 19:27:29,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 172 transitions. [2024-10-24 19:27:29,054 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39814814814814814 [2024-10-24 19:27:29,054 INFO L175 Difference]: Start difference. First operand has 141 places, 158 transitions, 2239 flow. Second operand 18 states and 172 transitions. [2024-10-24 19:27:29,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 258 transitions, 3838 flow [2024-10-24 19:27:29,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 258 transitions, 3731 flow, removed 20 selfloop flow, removed 6 redundant places. [2024-10-24 19:27:29,092 INFO L231 Difference]: Finished difference. Result has 157 places, 193 transitions, 3153 flow [2024-10-24 19:27:29,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2158, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3153, PETRI_PLACES=157, PETRI_TRANSITIONS=193} [2024-10-24 19:27:29,092 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 131 predicate places. [2024-10-24 19:27:29,093 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 193 transitions, 3153 flow [2024-10-24 19:27:29,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:29,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:29,093 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:29,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 19:27:29,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:29,294 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:29,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:29,294 INFO L85 PathProgramCache]: Analyzing trace with hash -440198710, now seen corresponding path program 4 times [2024-10-24 19:27:29,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:29,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226143143] [2024-10-24 19:27:29,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:29,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:29,421 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:29,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:29,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226143143] [2024-10-24 19:27:29,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226143143] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:29,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935214938] [2024-10-24 19:27:29,422 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 19:27:29,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:29,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:29,424 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) [2024-10-24 19:27:29,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 19:27:29,470 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 19:27:29,471 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:29,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:29,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:29,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:29,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:29,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:29,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935214938] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:29,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:29,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-24 19:27:29,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356551352] [2024-10-24 19:27:29,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:29,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 19:27:29,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:29,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 19:27:29,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-10-24 19:27:29,794 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:29,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 193 transitions, 3153 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:29,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:29,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:29,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:30,476 INFO L124 PetriNetUnfolderBase]: 830/1635 cut-off events. [2024-10-24 19:27:30,477 INFO L125 PetriNetUnfolderBase]: For 16409/16409 co-relation queries the response was YES. [2024-10-24 19:27:30,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9142 conditions, 1635 events. 830/1635 cut-off events. For 16409/16409 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 9795 event pairs, 93 based on Foata normal form. 4/1639 useless extension candidates. Maximal degree in co-relation 9014. Up to 513 conditions per place. [2024-10-24 19:27:30,489 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 82 selfloop transitions, 137 changer transitions 16/236 dead transitions. [2024-10-24 19:27:30,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 236 transitions, 3930 flow [2024-10-24 19:27:30,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 19:27:30,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-24 19:27:30,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 160 transitions. [2024-10-24 19:27:30,490 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39215686274509803 [2024-10-24 19:27:30,491 INFO L175 Difference]: Start difference. First operand has 157 places, 193 transitions, 3153 flow. Second operand 17 states and 160 transitions. [2024-10-24 19:27:30,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 236 transitions, 3930 flow [2024-10-24 19:27:30,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 236 transitions, 3717 flow, removed 77 selfloop flow, removed 5 redundant places. [2024-10-24 19:27:30,549 INFO L231 Difference]: Finished difference. Result has 168 places, 188 transitions, 3129 flow [2024-10-24 19:27:30,549 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2944, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=137, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3129, PETRI_PLACES=168, PETRI_TRANSITIONS=188} [2024-10-24 19:27:30,550 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 142 predicate places. [2024-10-24 19:27:30,550 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 188 transitions, 3129 flow [2024-10-24 19:27:30,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:30,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:30,550 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:30,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-24 19:27:30,751 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,SelfDestructingSolverStorable33 [2024-10-24 19:27:30,751 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:30,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:30,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1689961368, now seen corresponding path program 5 times [2024-10-24 19:27:30,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:30,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466208357] [2024-10-24 19:27:30,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:30,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:30,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:30,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:30,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466208357] [2024-10-24 19:27:30,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466208357] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:30,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075198775] [2024-10-24 19:27:30,870 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 19:27:30,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:30,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:30,871 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) [2024-10-24 19:27:30,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 19:27:30,917 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 19:27:30,917 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:30,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 19:27:30,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:30,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:30,995 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:31,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:31,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075198775] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:31,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:31,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 19 [2024-10-24 19:27:31,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031457226] [2024-10-24 19:27:31,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:31,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 19:27:31,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:31,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 19:27:31,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-10-24 19:27:31,080 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:31,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 188 transitions, 3129 flow. Second operand has 20 states, 20 states have (on average 5.75) internal successors, (115), 20 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:31,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:31,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:31,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:31,531 INFO L124 PetriNetUnfolderBase]: 772/1497 cut-off events. [2024-10-24 19:27:31,531 INFO L125 PetriNetUnfolderBase]: For 15801/15801 co-relation queries the response was YES. [2024-10-24 19:27:31,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8761 conditions, 1497 events. 772/1497 cut-off events. For 15801/15801 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 8520 event pairs, 165 based on Foata normal form. 2/1499 useless extension candidates. Maximal degree in co-relation 8640. Up to 1015 conditions per place. [2024-10-24 19:27:31,540 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 112 selfloop transitions, 65 changer transitions 49/227 dead transitions. [2024-10-24 19:27:31,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 227 transitions, 3938 flow [2024-10-24 19:27:31,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 19:27:31,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 19:27:31,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 132 transitions. [2024-10-24 19:27:31,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2024-10-24 19:27:31,542 INFO L175 Difference]: Start difference. First operand has 168 places, 188 transitions, 3129 flow. Second operand 14 states and 132 transitions. [2024-10-24 19:27:31,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 227 transitions, 3938 flow [2024-10-24 19:27:31,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 227 transitions, 3746 flow, removed 7 selfloop flow, removed 12 redundant places. [2024-10-24 19:27:31,593 INFO L231 Difference]: Finished difference. Result has 168 places, 161 transitions, 2565 flow [2024-10-24 19:27:31,593 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2950, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2565, PETRI_PLACES=168, PETRI_TRANSITIONS=161} [2024-10-24 19:27:31,594 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 142 predicate places. [2024-10-24 19:27:31,594 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 161 transitions, 2565 flow [2024-10-24 19:27:31,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.75) internal successors, (115), 20 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:31,594 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:31,594 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:31,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 19:27:31,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:31,795 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:31,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:31,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1810654316, now seen corresponding path program 6 times [2024-10-24 19:27:31,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:31,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496057291] [2024-10-24 19:27:31,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:31,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:31,900 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:31,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:31,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496057291] [2024-10-24 19:27:31,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496057291] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:31,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814058346] [2024-10-24 19:27:31,901 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-24 19:27:31,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:31,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:31,903 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:31,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 19:27:31,949 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-10-24 19:27:31,949 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:31,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:31,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:32,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:32,056 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:32,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:32,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814058346] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:32,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:32,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-24 19:27:32,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896485504] [2024-10-24 19:27:32,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:32,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 19:27:32,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:32,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 19:27:32,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-10-24 19:27:32,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:32,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 161 transitions, 2565 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:32,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:32,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:32,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:32,624 INFO L124 PetriNetUnfolderBase]: 725/1436 cut-off events. [2024-10-24 19:27:32,624 INFO L125 PetriNetUnfolderBase]: For 13991/13991 co-relation queries the response was YES. [2024-10-24 19:27:32,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7739 conditions, 1436 events. 725/1436 cut-off events. For 13991/13991 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 8307 event pairs, 111 based on Foata normal form. 2/1438 useless extension candidates. Maximal degree in co-relation 7608. Up to 637 conditions per place. [2024-10-24 19:27:32,635 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 104 selfloop transitions, 91 changer transitions 20/216 dead transitions. [2024-10-24 19:27:32,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 216 transitions, 3475 flow [2024-10-24 19:27:32,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 19:27:32,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 19:27:32,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 138 transitions. [2024-10-24 19:27:32,636 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4107142857142857 [2024-10-24 19:27:32,636 INFO L175 Difference]: Start difference. First operand has 168 places, 161 transitions, 2565 flow. Second operand 14 states and 138 transitions. [2024-10-24 19:27:32,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 216 transitions, 3475 flow [2024-10-24 19:27:32,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 216 transitions, 3073 flow, removed 25 selfloop flow, removed 20 redundant places. [2024-10-24 19:27:32,675 INFO L231 Difference]: Finished difference. Result has 150 places, 156 transitions, 2338 flow [2024-10-24 19:27:32,675 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2207, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2338, PETRI_PLACES=150, PETRI_TRANSITIONS=156} [2024-10-24 19:27:32,676 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 124 predicate places. [2024-10-24 19:27:32,676 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 156 transitions, 2338 flow [2024-10-24 19:27:32,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:32,676 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:32,676 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:32,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 19:27:32,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:32,881 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:32,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:32,881 INFO L85 PathProgramCache]: Analyzing trace with hash 862787534, now seen corresponding path program 7 times [2024-10-24 19:27:32,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:32,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202392525] [2024-10-24 19:27:32,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:32,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:32,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:32,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:32,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202392525] [2024-10-24 19:27:32,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202392525] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:32,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369362514] [2024-10-24 19:27:32,998 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-24 19:27:32,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:32,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:33,000 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:33,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 19:27:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:33,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:33,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:33,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:33,121 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:33,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:33,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369362514] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:33,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:33,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-10-24 19:27:33,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495827526] [2024-10-24 19:27:33,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:33,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 19:27:33,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:33,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 19:27:33,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2024-10-24 19:27:33,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:33,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 156 transitions, 2338 flow. Second operand has 20 states, 20 states have (on average 5.5) internal successors, (110), 20 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) [2024-10-24 19:27:33,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:33,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:33,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:34,064 INFO L124 PetriNetUnfolderBase]: 998/1930 cut-off events. [2024-10-24 19:27:34,064 INFO L125 PetriNetUnfolderBase]: For 19782/19782 co-relation queries the response was YES. [2024-10-24 19:27:34,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10495 conditions, 1930 events. 998/1930 cut-off events. For 19782/19782 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 11610 event pairs, 36 based on Foata normal form. 27/1957 useless extension candidates. Maximal degree in co-relation 10344. Up to 466 conditions per place. [2024-10-24 19:27:34,078 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 109 selfloop transitions, 204 changer transitions 12/326 dead transitions. [2024-10-24 19:27:34,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 326 transitions, 5207 flow [2024-10-24 19:27:34,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-24 19:27:34,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-10-24 19:27:34,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 247 transitions. [2024-10-24 19:27:34,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36755952380952384 [2024-10-24 19:27:34,081 INFO L175 Difference]: Start difference. First operand has 150 places, 156 transitions, 2338 flow. Second operand 28 states and 247 transitions. [2024-10-24 19:27:34,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 326 transitions, 5207 flow [2024-10-24 19:27:34,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 326 transitions, 5021 flow, removed 25 selfloop flow, removed 9 redundant places. [2024-10-24 19:27:34,138 INFO L231 Difference]: Finished difference. Result has 173 places, 263 transitions, 4738 flow [2024-10-24 19:27:34,138 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2243, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=4738, PETRI_PLACES=173, PETRI_TRANSITIONS=263} [2024-10-24 19:27:34,139 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 147 predicate places. [2024-10-24 19:27:34,139 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 263 transitions, 4738 flow [2024-10-24 19:27:34,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.5) internal successors, (110), 20 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) [2024-10-24 19:27:34,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:34,140 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:34,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-24 19:27:34,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-10-24 19:27:34,343 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:34,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:34,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1447847956, now seen corresponding path program 8 times [2024-10-24 19:27:34,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:34,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507422632] [2024-10-24 19:27:34,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:34,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:34,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:34,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:34,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507422632] [2024-10-24 19:27:34,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507422632] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:34,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556656065] [2024-10-24 19:27:34,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 19:27:34,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:34,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:34,456 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:34,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 19:27:34,503 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 19:27:34,504 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:34,505 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:34,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:34,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:34,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:34,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556656065] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:34,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:34,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2024-10-24 19:27:34,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995170193] [2024-10-24 19:27:34,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:34,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 19:27:34,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:34,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 19:27:34,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2024-10-24 19:27:34,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:34,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 263 transitions, 4738 flow. Second operand has 20 states, 20 states have (on average 5.55) internal successors, (111), 20 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) [2024-10-24 19:27:34,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:34,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:34,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:35,744 INFO L124 PetriNetUnfolderBase]: 956/1864 cut-off events. [2024-10-24 19:27:35,744 INFO L125 PetriNetUnfolderBase]: For 21911/21911 co-relation queries the response was YES. [2024-10-24 19:27:35,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11208 conditions, 1864 events. 956/1864 cut-off events. For 21911/21911 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 11258 event pairs, 29 based on Foata normal form. 16/1880 useless extension candidates. Maximal degree in co-relation 11065. Up to 541 conditions per place. [2024-10-24 19:27:35,753 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 90 selfloop transitions, 182 changer transitions 41/314 dead transitions. [2024-10-24 19:27:35,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 314 transitions, 5544 flow [2024-10-24 19:27:35,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-24 19:27:35,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-10-24 19:27:35,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 243 transitions. [2024-10-24 19:27:35,754 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34913793103448276 [2024-10-24 19:27:35,754 INFO L175 Difference]: Start difference. First operand has 173 places, 263 transitions, 4738 flow. Second operand 29 states and 243 transitions. [2024-10-24 19:27:35,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 314 transitions, 5544 flow [2024-10-24 19:27:35,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 314 transitions, 5085 flow, removed 182 selfloop flow, removed 5 redundant places. [2024-10-24 19:27:35,815 INFO L231 Difference]: Finished difference. Result has 196 places, 239 transitions, 4234 flow [2024-10-24 19:27:35,816 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4098, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=4234, PETRI_PLACES=196, PETRI_TRANSITIONS=239} [2024-10-24 19:27:35,816 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 170 predicate places. [2024-10-24 19:27:35,816 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 239 transitions, 4234 flow [2024-10-24 19:27:35,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.55) internal successors, (111), 20 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) [2024-10-24 19:27:35,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:35,816 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:35,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-24 19:27:36,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-10-24 19:27:36,017 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:36,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:36,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1393510450, now seen corresponding path program 9 times [2024-10-24 19:27:36,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:36,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250293546] [2024-10-24 19:27:36,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:36,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:36,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:36,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:36,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250293546] [2024-10-24 19:27:36,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250293546] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:36,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283794162] [2024-10-24 19:27:36,124 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 19:27:36,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:36,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:36,126 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:36,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-24 19:27:36,170 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 19:27:36,170 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:36,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:36,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:36,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:36,225 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:36,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:36,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283794162] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:36,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:36,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2024-10-24 19:27:36,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266627444] [2024-10-24 19:27:36,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:36,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 19:27:36,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:36,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 19:27:36,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-10-24 19:27:36,464 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:36,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 239 transitions, 4234 flow. Second operand has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:36,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:36,465 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:36,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:37,237 INFO L124 PetriNetUnfolderBase]: 974/1904 cut-off events. [2024-10-24 19:27:37,237 INFO L125 PetriNetUnfolderBase]: For 21970/21970 co-relation queries the response was YES. [2024-10-24 19:27:37,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11628 conditions, 1904 events. 974/1904 cut-off events. For 21970/21970 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 11652 event pairs, 50 based on Foata normal form. 38/1942 useless extension candidates. Maximal degree in co-relation 11480. Up to 396 conditions per place. [2024-10-24 19:27:37,247 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 93 selfloop transitions, 171 changer transitions 48/313 dead transitions. [2024-10-24 19:27:37,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 313 transitions, 5559 flow [2024-10-24 19:27:37,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-24 19:27:37,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-10-24 19:27:37,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 217 transitions. [2024-10-24 19:27:37,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3616666666666667 [2024-10-24 19:27:37,249 INFO L175 Difference]: Start difference. First operand has 196 places, 239 transitions, 4234 flow. Second operand 25 states and 217 transitions. [2024-10-24 19:27:37,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 313 transitions, 5559 flow [2024-10-24 19:27:37,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 313 transitions, 5129 flow, removed 19 selfloop flow, removed 27 redundant places. [2024-10-24 19:27:37,337 INFO L231 Difference]: Finished difference. Result has 192 places, 229 transitions, 4089 flow [2024-10-24 19:27:37,338 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3793, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=4089, PETRI_PLACES=192, PETRI_TRANSITIONS=229} [2024-10-24 19:27:37,338 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 166 predicate places. [2024-10-24 19:27:37,338 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 229 transitions, 4089 flow [2024-10-24 19:27:37,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:37,338 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:37,338 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:37,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-24 19:27:37,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-10-24 19:27:37,539 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:37,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:37,540 INFO L85 PathProgramCache]: Analyzing trace with hash 954149100, now seen corresponding path program 10 times [2024-10-24 19:27:37,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:37,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230001887] [2024-10-24 19:27:37,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:37,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:37,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:37,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:37,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230001887] [2024-10-24 19:27:37,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230001887] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:37,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042356194] [2024-10-24 19:27:37,649 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 19:27:37,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:37,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:37,651 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:37,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-24 19:27:37,697 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 19:27:37,698 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:37,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:37,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:37,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:37,804 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:37,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042356194] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:37,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:37,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-10-24 19:27:37,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887407663] [2024-10-24 19:27:37,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:37,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-24 19:27:37,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:37,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-24 19:27:37,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2024-10-24 19:27:37,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:37,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 229 transitions, 4089 flow. Second operand has 22 states, 22 states have (on average 5.454545454545454) internal successors, (120), 22 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:37,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:37,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:37,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:38,436 INFO L124 PetriNetUnfolderBase]: 1044/2047 cut-off events. [2024-10-24 19:27:38,436 INFO L125 PetriNetUnfolderBase]: For 25660/25660 co-relation queries the response was YES. [2024-10-24 19:27:38,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13046 conditions, 2047 events. 1044/2047 cut-off events. For 25660/25660 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 12897 event pairs, 136 based on Foata normal form. 5/2052 useless extension candidates. Maximal degree in co-relation 12910. Up to 1050 conditions per place. [2024-10-24 19:27:38,446 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 152 selfloop transitions, 156 changer transitions 39/348 dead transitions. [2024-10-24 19:27:38,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 348 transitions, 6705 flow [2024-10-24 19:27:38,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 19:27:38,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 19:27:38,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 131 transitions. [2024-10-24 19:27:38,447 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3898809523809524 [2024-10-24 19:27:38,447 INFO L175 Difference]: Start difference. First operand has 192 places, 229 transitions, 4089 flow. Second operand 14 states and 131 transitions. [2024-10-24 19:27:38,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 348 transitions, 6705 flow [2024-10-24 19:27:38,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 348 transitions, 6323 flow, removed 35 selfloop flow, removed 18 redundant places. [2024-10-24 19:27:38,521 INFO L231 Difference]: Finished difference. Result has 184 places, 268 transitions, 5051 flow [2024-10-24 19:27:38,521 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3812, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5051, PETRI_PLACES=184, PETRI_TRANSITIONS=268} [2024-10-24 19:27:38,522 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 158 predicate places. [2024-10-24 19:27:38,522 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 268 transitions, 5051 flow [2024-10-24 19:27:38,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.454545454545454) internal successors, (120), 22 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:38,522 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:38,522 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:38,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-24 19:27:38,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-10-24 19:27:38,727 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:38,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:38,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1475391222, now seen corresponding path program 11 times [2024-10-24 19:27:38,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:38,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294165410] [2024-10-24 19:27:38,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:38,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:38,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:38,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:38,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294165410] [2024-10-24 19:27:38,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294165410] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:38,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816708460] [2024-10-24 19:27:38,831 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 19:27:38,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:38,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:38,833 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:38,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-24 19:27:38,878 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-10-24 19:27:38,878 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:38,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 19:27:38,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:38,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:38,965 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:39,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:39,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816708460] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:39,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:39,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 19 [2024-10-24 19:27:39,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942422834] [2024-10-24 19:27:39,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:39,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 19:27:39,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:39,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 19:27:39,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2024-10-24 19:27:39,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:39,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 268 transitions, 5051 flow. Second operand has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:39,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:39,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:39,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:39,458 INFO L124 PetriNetUnfolderBase]: 943/1837 cut-off events. [2024-10-24 19:27:39,458 INFO L125 PetriNetUnfolderBase]: For 25343/25343 co-relation queries the response was YES. [2024-10-24 19:27:39,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11997 conditions, 1837 events. 943/1837 cut-off events. For 25343/25343 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 11230 event pairs, 88 based on Foata normal form. 8/1845 useless extension candidates. Maximal degree in co-relation 11882. Up to 680 conditions per place. [2024-10-24 19:27:39,468 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 109 selfloop transitions, 98 changer transitions 100/308 dead transitions. [2024-10-24 19:27:39,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 308 transitions, 5983 flow [2024-10-24 19:27:39,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 19:27:39,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 19:27:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 141 transitions. [2024-10-24 19:27:39,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39166666666666666 [2024-10-24 19:27:39,469 INFO L175 Difference]: Start difference. First operand has 184 places, 268 transitions, 5051 flow. Second operand 15 states and 141 transitions. [2024-10-24 19:27:39,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 308 transitions, 5983 flow [2024-10-24 19:27:39,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 308 transitions, 5808 flow, removed 13 selfloop flow, removed 6 redundant places. [2024-10-24 19:27:39,546 INFO L231 Difference]: Finished difference. Result has 192 places, 184 transitions, 3251 flow [2024-10-24 19:27:39,546 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4876, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3251, PETRI_PLACES=192, PETRI_TRANSITIONS=184} [2024-10-24 19:27:39,547 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 166 predicate places. [2024-10-24 19:27:39,547 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 184 transitions, 3251 flow [2024-10-24 19:27:39,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:39,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:39,547 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:39,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-24 19:27:39,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:39,748 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:39,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:39,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1331649640, now seen corresponding path program 12 times [2024-10-24 19:27:39,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:39,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780836338] [2024-10-24 19:27:39,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:39,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:39,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:39,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:39,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780836338] [2024-10-24 19:27:39,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780836338] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:39,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853383411] [2024-10-24 19:27:39,856 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-24 19:27:39,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:39,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:39,858 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:39,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-24 19:27:39,906 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-10-24 19:27:39,906 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:39,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:39,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:39,985 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:39,985 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:40,184 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:40,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853383411] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:40,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:40,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-10-24 19:27:40,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744445184] [2024-10-24 19:27:40,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:40,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 19:27:40,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:40,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 19:27:40,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2024-10-24 19:27:40,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:40,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 184 transitions, 3251 flow. Second operand has 21 states, 21 states have (on average 5.571428571428571) internal successors, (117), 21 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:40,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:40,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:40,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:40,845 INFO L124 PetriNetUnfolderBase]: 766/1583 cut-off events. [2024-10-24 19:27:40,846 INFO L125 PetriNetUnfolderBase]: For 18750/18750 co-relation queries the response was YES. [2024-10-24 19:27:40,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9483 conditions, 1583 events. 766/1583 cut-off events. For 18750/18750 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 9858 event pairs, 32 based on Foata normal form. 14/1597 useless extension candidates. Maximal degree in co-relation 9341. Up to 375 conditions per place. [2024-10-24 19:27:40,881 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 101 selfloop transitions, 151 changer transitions 38/291 dead transitions. [2024-10-24 19:27:40,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 291 transitions, 4828 flow [2024-10-24 19:27:40,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-24 19:27:40,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-10-24 19:27:40,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 256 transitions. [2024-10-24 19:27:40,882 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2024-10-24 19:27:40,883 INFO L175 Difference]: Start difference. First operand has 192 places, 184 transitions, 3251 flow. Second operand 28 states and 256 transitions. [2024-10-24 19:27:40,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 291 transitions, 4828 flow [2024-10-24 19:27:40,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 291 transitions, 4475 flow, removed 36 selfloop flow, removed 18 redundant places. [2024-10-24 19:27:40,938 INFO L231 Difference]: Finished difference. Result has 198 places, 210 transitions, 3810 flow [2024-10-24 19:27:40,938 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2805, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=3810, PETRI_PLACES=198, PETRI_TRANSITIONS=210} [2024-10-24 19:27:40,939 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 172 predicate places. [2024-10-24 19:27:40,939 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 210 transitions, 3810 flow [2024-10-24 19:27:40,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.571428571428571) internal successors, (117), 21 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:40,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:40,939 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:40,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-24 19:27:41,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-10-24 19:27:41,140 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:41,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:41,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1713554998, now seen corresponding path program 13 times [2024-10-24 19:27:41,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:41,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169007039] [2024-10-24 19:27:41,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:41,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:41,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:41,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:41,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169007039] [2024-10-24 19:27:41,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169007039] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:41,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738847136] [2024-10-24 19:27:41,271 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-24 19:27:41,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:41,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:41,273 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:41,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-24 19:27:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:41,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:41,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:41,433 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:41,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:41,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738847136] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:41,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:41,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-10-24 19:27:41,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233280281] [2024-10-24 19:27:41,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:41,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 19:27:41,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:41,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 19:27:41,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-10-24 19:27:41,618 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:41,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 210 transitions, 3810 flow. Second operand has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 21 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) [2024-10-24 19:27:41,618 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:41,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:41,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:42,118 INFO L124 PetriNetUnfolderBase]: 720/1482 cut-off events. [2024-10-24 19:27:42,119 INFO L125 PetriNetUnfolderBase]: For 17695/17695 co-relation queries the response was YES. [2024-10-24 19:27:42,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9096 conditions, 1482 events. 720/1482 cut-off events. For 17695/17695 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 9062 event pairs, 35 based on Foata normal form. 3/1485 useless extension candidates. Maximal degree in co-relation 8970. Up to 439 conditions per place. [2024-10-24 19:27:42,124 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 76 selfloop transitions, 90 changer transitions 87/254 dead transitions. [2024-10-24 19:27:42,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 254 transitions, 4558 flow [2024-10-24 19:27:42,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 19:27:42,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-10-24 19:27:42,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 186 transitions. [2024-10-24 19:27:42,125 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3875 [2024-10-24 19:27:42,126 INFO L175 Difference]: Start difference. First operand has 198 places, 210 transitions, 3810 flow. Second operand 20 states and 186 transitions. [2024-10-24 19:27:42,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 254 transitions, 4558 flow [2024-10-24 19:27:42,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 254 transitions, 4257 flow, removed 102 selfloop flow, removed 11 redundant places. [2024-10-24 19:27:42,168 INFO L231 Difference]: Finished difference. Result has 201 places, 137 transitions, 2391 flow [2024-10-24 19:27:42,168 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3517, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2391, PETRI_PLACES=201, PETRI_TRANSITIONS=137} [2024-10-24 19:27:42,169 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 175 predicate places. [2024-10-24 19:27:42,169 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 137 transitions, 2391 flow [2024-10-24 19:27:42,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 21 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) [2024-10-24 19:27:42,169 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:42,169 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:42,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-24 19:27:42,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:42,370 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:42,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:42,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1765352596, now seen corresponding path program 14 times [2024-10-24 19:27:42,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:42,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260070581] [2024-10-24 19:27:42,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:42,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:42,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:42,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:42,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260070581] [2024-10-24 19:27:42,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260070581] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:42,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469629629] [2024-10-24 19:27:42,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 19:27:42,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:42,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:42,484 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:42,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-24 19:27:42,525 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 19:27:42,525 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:42,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:42,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:42,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:42,592 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:42,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:42,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469629629] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:42,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:42,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-10-24 19:27:42,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137901100] [2024-10-24 19:27:42,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:42,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 19:27:42,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:42,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 19:27:42,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2024-10-24 19:27:42,763 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:42,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 137 transitions, 2391 flow. Second operand has 21 states, 21 states have (on average 5.476190476190476) internal successors, (115), 21 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:42,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:42,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:42,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:43,213 INFO L124 PetriNetUnfolderBase]: 507/1084 cut-off events. [2024-10-24 19:27:43,213 INFO L125 PetriNetUnfolderBase]: For 11164/11164 co-relation queries the response was YES. [2024-10-24 19:27:43,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6049 conditions, 1084 events. 507/1084 cut-off events. For 11164/11164 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 6271 event pairs, 35 based on Foata normal form. 1/1085 useless extension candidates. Maximal degree in co-relation 5997. Up to 439 conditions per place. [2024-10-24 19:27:43,218 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 65 selfloop transitions, 79 changer transitions 24/169 dead transitions. [2024-10-24 19:27:43,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 169 transitions, 2851 flow [2024-10-24 19:27:43,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 19:27:43,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-24 19:27:43,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 159 transitions. [2024-10-24 19:27:43,219 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3680555555555556 [2024-10-24 19:27:43,219 INFO L175 Difference]: Start difference. First operand has 201 places, 137 transitions, 2391 flow. Second operand 18 states and 159 transitions. [2024-10-24 19:27:43,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 169 transitions, 2851 flow [2024-10-24 19:27:43,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 169 transitions, 2554 flow, removed 12 selfloop flow, removed 26 redundant places. [2024-10-24 19:27:43,268 INFO L231 Difference]: Finished difference. Result has 176 places, 124 transitions, 2034 flow [2024-10-24 19:27:43,269 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2098, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2034, PETRI_PLACES=176, PETRI_TRANSITIONS=124} [2024-10-24 19:27:43,270 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 150 predicate places. [2024-10-24 19:27:43,270 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 124 transitions, 2034 flow [2024-10-24 19:27:43,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.476190476190476) internal successors, (115), 21 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:43,270 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:43,270 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:43,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-24 19:27:43,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:43,471 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:43,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:43,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1964865824, now seen corresponding path program 15 times [2024-10-24 19:27:43,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:43,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11963878] [2024-10-24 19:27:43,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:43,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:43,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:43,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:43,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11963878] [2024-10-24 19:27:43,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11963878] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:43,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226312921] [2024-10-24 19:27:43,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 19:27:43,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:43,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:43,583 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:43,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-24 19:27:43,624 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-24 19:27:43,624 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:43,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:43,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:43,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:43,725 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:43,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:43,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226312921] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:43,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:43,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-24 19:27:43,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231196633] [2024-10-24 19:27:43,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:43,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 19:27:43,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:43,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 19:27:43,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-10-24 19:27:43,866 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:43,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 124 transitions, 2034 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:43,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:43,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:43,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:44,281 INFO L124 PetriNetUnfolderBase]: 514/1085 cut-off events. [2024-10-24 19:27:44,281 INFO L125 PetriNetUnfolderBase]: For 10797/10797 co-relation queries the response was YES. [2024-10-24 19:27:44,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5970 conditions, 1085 events. 514/1085 cut-off events. For 10797/10797 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 6178 event pairs, 42 based on Foata normal form. 4/1089 useless extension candidates. Maximal degree in co-relation 5924. Up to 313 conditions per place. [2024-10-24 19:27:44,289 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 88 selfloop transitions, 79 changer transitions 23/191 dead transitions. [2024-10-24 19:27:44,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 191 transitions, 3238 flow [2024-10-24 19:27:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 19:27:44,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-24 19:27:44,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 153 transitions. [2024-10-24 19:27:44,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.375 [2024-10-24 19:27:44,291 INFO L175 Difference]: Start difference. First operand has 176 places, 124 transitions, 2034 flow. Second operand 17 states and 153 transitions. [2024-10-24 19:27:44,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 191 transitions, 3238 flow [2024-10-24 19:27:44,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 191 transitions, 2835 flow, removed 5 selfloop flow, removed 20 redundant places. [2024-10-24 19:27:44,319 INFO L231 Difference]: Finished difference. Result has 166 places, 140 transitions, 2225 flow [2024-10-24 19:27:44,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1714, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2225, PETRI_PLACES=166, PETRI_TRANSITIONS=140} [2024-10-24 19:27:44,319 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 140 predicate places. [2024-10-24 19:27:44,319 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 140 transitions, 2225 flow [2024-10-24 19:27:44,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:44,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:44,319 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:44,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-24 19:27:44,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-10-24 19:27:44,520 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:44,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:44,521 INFO L85 PathProgramCache]: Analyzing trace with hash 480398410, now seen corresponding path program 16 times [2024-10-24 19:27:44,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:44,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376725048] [2024-10-24 19:27:44,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:44,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:44,628 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:44,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:44,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376725048] [2024-10-24 19:27:44,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376725048] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:44,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362252412] [2024-10-24 19:27:44,628 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 19:27:44,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:44,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:44,630 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:44,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-24 19:27:44,671 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 19:27:44,672 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:44,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:44,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:44,751 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:44,751 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:44,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:44,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362252412] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:44,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:44,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-10-24 19:27:44,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604722332] [2024-10-24 19:27:44,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:44,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 19:27:44,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:44,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 19:27:44,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2024-10-24 19:27:44,936 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:44,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 140 transitions, 2225 flow. Second operand has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 21 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) [2024-10-24 19:27:44,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:44,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:44,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:45,564 INFO L124 PetriNetUnfolderBase]: 622/1285 cut-off events. [2024-10-24 19:27:45,565 INFO L125 PetriNetUnfolderBase]: For 13355/13355 co-relation queries the response was YES. [2024-10-24 19:27:45,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7138 conditions, 1285 events. 622/1285 cut-off events. For 13355/13355 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 7513 event pairs, 49 based on Foata normal form. 3/1288 useless extension candidates. Maximal degree in co-relation 7090. Up to 550 conditions per place. [2024-10-24 19:27:45,573 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 97 selfloop transitions, 124 changer transitions 51/273 dead transitions. [2024-10-24 19:27:45,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 273 transitions, 4596 flow [2024-10-24 19:27:45,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-24 19:27:45,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-10-24 19:27:45,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 225 transitions. [2024-10-24 19:27:45,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.390625 [2024-10-24 19:27:45,574 INFO L175 Difference]: Start difference. First operand has 166 places, 140 transitions, 2225 flow. Second operand 24 states and 225 transitions. [2024-10-24 19:27:45,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 273 transitions, 4596 flow [2024-10-24 19:27:45,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 273 transitions, 4277 flow, removed 48 selfloop flow, removed 9 redundant places. [2024-10-24 19:27:45,607 INFO L231 Difference]: Finished difference. Result has 186 places, 184 transitions, 3249 flow [2024-10-24 19:27:45,607 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2029, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=3249, PETRI_PLACES=186, PETRI_TRANSITIONS=184} [2024-10-24 19:27:45,608 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 160 predicate places. [2024-10-24 19:27:45,608 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 184 transitions, 3249 flow [2024-10-24 19:27:45,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 21 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) [2024-10-24 19:27:45,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:45,608 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:45,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-10-24 19:27:45,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:45,809 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:45,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:45,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1495933514, now seen corresponding path program 17 times [2024-10-24 19:27:45,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:45,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482256579] [2024-10-24 19:27:45,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:45,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:45,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:45,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:45,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482256579] [2024-10-24 19:27:45,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482256579] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:45,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783420705] [2024-10-24 19:27:45,905 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 19:27:45,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:45,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:45,906 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:45,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-24 19:27:45,943 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 19:27:45,943 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:45,944 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 19:27:45,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:46,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:46,015 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:46,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:46,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783420705] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:46,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:46,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 19 [2024-10-24 19:27:46,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052841560] [2024-10-24 19:27:46,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:46,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 19:27:46,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:46,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 19:27:46,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2024-10-24 19:27:46,085 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:46,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 184 transitions, 3249 flow. Second operand has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:46,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:46,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:46,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:46,471 INFO L124 PetriNetUnfolderBase]: 683/1402 cut-off events. [2024-10-24 19:27:46,472 INFO L125 PetriNetUnfolderBase]: For 16252/16252 co-relation queries the response was YES. [2024-10-24 19:27:46,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8042 conditions, 1402 events. 683/1402 cut-off events. For 16252/16252 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 8364 event pairs, 104 based on Foata normal form. 7/1409 useless extension candidates. Maximal degree in co-relation 7988. Up to 579 conditions per place. [2024-10-24 19:27:46,480 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 122 selfloop transitions, 84 changer transitions 52/259 dead transitions. [2024-10-24 19:27:46,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 259 transitions, 4742 flow [2024-10-24 19:27:46,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 19:27:46,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-24 19:27:46,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 147 transitions. [2024-10-24 19:27:46,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3828125 [2024-10-24 19:27:46,482 INFO L175 Difference]: Start difference. First operand has 186 places, 184 transitions, 3249 flow. Second operand 16 states and 147 transitions. [2024-10-24 19:27:46,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 259 transitions, 4742 flow [2024-10-24 19:27:46,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 259 transitions, 4529 flow, removed 85 selfloop flow, removed 4 redundant places. [2024-10-24 19:27:46,523 INFO L231 Difference]: Finished difference. Result has 199 places, 178 transitions, 3177 flow [2024-10-24 19:27:46,523 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3067, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3177, PETRI_PLACES=199, PETRI_TRANSITIONS=178} [2024-10-24 19:27:46,524 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 173 predicate places. [2024-10-24 19:27:46,524 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 178 transitions, 3177 flow [2024-10-24 19:27:46,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:46,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:46,524 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:46,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-10-24 19:27:46,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:46,729 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:46,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:46,729 INFO L85 PathProgramCache]: Analyzing trace with hash -937365608, now seen corresponding path program 18 times [2024-10-24 19:27:46,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:46,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078092937] [2024-10-24 19:27:46,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:46,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:46,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:46,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:46,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078092937] [2024-10-24 19:27:46,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078092937] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:46,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817884155] [2024-10-24 19:27:46,820 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-24 19:27:46,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:46,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:46,821 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:46,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-24 19:27:46,859 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-10-24 19:27:46,859 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:46,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:46,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:46,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:46,938 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:47,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:47,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817884155] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:47,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:47,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-10-24 19:27:47,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740984456] [2024-10-24 19:27:47,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:47,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-24 19:27:47,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:47,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-24 19:27:47,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-10-24 19:27:47,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:47,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 178 transitions, 3177 flow. Second operand has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:47,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:47,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:47,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:47,570 INFO L124 PetriNetUnfolderBase]: 518/1104 cut-off events. [2024-10-24 19:27:47,570 INFO L125 PetriNetUnfolderBase]: For 14698/14698 co-relation queries the response was YES. [2024-10-24 19:27:47,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6606 conditions, 1104 events. 518/1104 cut-off events. For 14698/14698 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6325 event pairs, 118 based on Foata normal form. 3/1107 useless extension candidates. Maximal degree in co-relation 6548. Up to 637 conditions per place. [2024-10-24 19:27:47,576 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 112 selfloop transitions, 67 changer transitions 29/209 dead transitions. [2024-10-24 19:27:47,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 209 transitions, 3924 flow [2024-10-24 19:27:47,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 19:27:47,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 19:27:47,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 130 transitions. [2024-10-24 19:27:47,577 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3611111111111111 [2024-10-24 19:27:47,577 INFO L175 Difference]: Start difference. First operand has 199 places, 178 transitions, 3177 flow. Second operand 15 states and 130 transitions. [2024-10-24 19:27:47,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 209 transitions, 3924 flow [2024-10-24 19:27:47,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 209 transitions, 3798 flow, removed 17 selfloop flow, removed 13 redundant places. [2024-10-24 19:27:47,611 INFO L231 Difference]: Finished difference. Result has 199 places, 165 transitions, 2921 flow [2024-10-24 19:27:47,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3052, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2921, PETRI_PLACES=199, PETRI_TRANSITIONS=165} [2024-10-24 19:27:47,612 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 173 predicate places. [2024-10-24 19:27:47,612 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 165 transitions, 2921 flow [2024-10-24 19:27:47,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:47,612 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:47,612 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:47,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-10-24 19:27:47,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:47,813 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:47,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:47,813 INFO L85 PathProgramCache]: Analyzing trace with hash -96898942, now seen corresponding path program 19 times [2024-10-24 19:27:47,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:47,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495665150] [2024-10-24 19:27:47,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:47,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:47,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:47,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:47,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495665150] [2024-10-24 19:27:47,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495665150] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:47,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565297561] [2024-10-24 19:27:47,927 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-24 19:27:47,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:47,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:47,928 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:47,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-24 19:27:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:47,964 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:47,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:48,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:48,050 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:48,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:48,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565297561] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:48,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:48,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-24 19:27:48,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163684252] [2024-10-24 19:27:48,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:48,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 19:27:48,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:48,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 19:27:48,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2024-10-24 19:27:48,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:48,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 165 transitions, 2921 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:48,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:48,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:48,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:48,645 INFO L124 PetriNetUnfolderBase]: 488/1032 cut-off events. [2024-10-24 19:27:48,645 INFO L125 PetriNetUnfolderBase]: For 14461/14461 co-relation queries the response was YES. [2024-10-24 19:27:48,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6142 conditions, 1032 events. 488/1032 cut-off events. For 14461/14461 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5701 event pairs, 37 based on Foata normal form. 1/1033 useless extension candidates. Maximal degree in co-relation 6085. Up to 364 conditions per place. [2024-10-24 19:27:48,651 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 101 selfloop transitions, 81 changer transitions 18/201 dead transitions. [2024-10-24 19:27:48,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 201 transitions, 3692 flow [2024-10-24 19:27:48,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 19:27:48,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-24 19:27:48,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 137 transitions. [2024-10-24 19:27:48,652 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3567708333333333 [2024-10-24 19:27:48,652 INFO L175 Difference]: Start difference. First operand has 199 places, 165 transitions, 2921 flow. Second operand 16 states and 137 transitions. [2024-10-24 19:27:48,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 201 transitions, 3692 flow [2024-10-24 19:27:48,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 201 transitions, 3569 flow, removed 13 selfloop flow, removed 9 redundant places. [2024-10-24 19:27:48,683 INFO L231 Difference]: Finished difference. Result has 201 places, 163 transitions, 2936 flow [2024-10-24 19:27:48,683 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2798, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2936, PETRI_PLACES=201, PETRI_TRANSITIONS=163} [2024-10-24 19:27:48,683 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 175 predicate places. [2024-10-24 19:27:48,684 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 163 transitions, 2936 flow [2024-10-24 19:27:48,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:48,684 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:48,684 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:48,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-10-24 19:27:48,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-10-24 19:27:48,885 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:48,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:48,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1601307548, now seen corresponding path program 20 times [2024-10-24 19:27:48,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:48,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535146267] [2024-10-24 19:27:48,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:48,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:49,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:49,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:49,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535146267] [2024-10-24 19:27:49,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535146267] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:49,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361963249] [2024-10-24 19:27:49,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 19:27:49,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:49,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:49,002 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:49,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-24 19:27:49,036 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 19:27:49,037 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:49,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:49,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:49,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:49,130 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:49,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:49,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361963249] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:49,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:49,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-24 19:27:49,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306738111] [2024-10-24 19:27:49,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:49,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 19:27:49,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:49,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 19:27:49,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2024-10-24 19:27:49,271 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:49,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 163 transitions, 2936 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:49,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:49,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:49,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:49,656 INFO L124 PetriNetUnfolderBase]: 517/1127 cut-off events. [2024-10-24 19:27:49,656 INFO L125 PetriNetUnfolderBase]: For 14933/14933 co-relation queries the response was YES. [2024-10-24 19:27:49,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6492 conditions, 1127 events. 517/1127 cut-off events. For 14933/14933 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 6654 event pairs, 98 based on Foata normal form. 6/1133 useless extension candidates. Maximal degree in co-relation 6436. Up to 508 conditions per place. [2024-10-24 19:27:49,662 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 104 selfloop transitions, 62 changer transitions 43/210 dead transitions. [2024-10-24 19:27:49,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 210 transitions, 3950 flow [2024-10-24 19:27:49,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 19:27:49,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-24 19:27:49,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 126 transitions. [2024-10-24 19:27:49,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40384615384615385 [2024-10-24 19:27:49,663 INFO L175 Difference]: Start difference. First operand has 201 places, 163 transitions, 2936 flow. Second operand 13 states and 126 transitions. [2024-10-24 19:27:49,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 210 transitions, 3950 flow [2024-10-24 19:27:49,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 210 transitions, 3758 flow, removed 5 selfloop flow, removed 12 redundant places. [2024-10-24 19:27:49,720 INFO L231 Difference]: Finished difference. Result has 198 places, 142 transitions, 2505 flow [2024-10-24 19:27:49,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2767, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2505, PETRI_PLACES=198, PETRI_TRANSITIONS=142} [2024-10-24 19:27:49,721 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 172 predicate places. [2024-10-24 19:27:49,721 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 142 transitions, 2505 flow [2024-10-24 19:27:49,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:49,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:49,721 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:49,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-10-24 19:27:49,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-10-24 19:27:49,922 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:49,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:49,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1924357630, now seen corresponding path program 21 times [2024-10-24 19:27:49,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:49,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730005517] [2024-10-24 19:27:49,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:49,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:49,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:50,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:50,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:50,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730005517] [2024-10-24 19:27:50,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730005517] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:50,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422072051] [2024-10-24 19:27:50,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 19:27:50,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:50,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:50,067 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:50,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-24 19:27:50,107 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-24 19:27:50,108 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:50,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:50,109 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:50,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:50,208 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:50,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:50,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422072051] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:50,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:50,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-24 19:27:50,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481948724] [2024-10-24 19:27:50,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:50,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 19:27:50,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:50,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 19:27:50,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-10-24 19:27:50,369 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:50,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 142 transitions, 2505 flow. Second operand has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:50,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:50,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:50,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:50,699 INFO L124 PetriNetUnfolderBase]: 427/935 cut-off events. [2024-10-24 19:27:50,699 INFO L125 PetriNetUnfolderBase]: For 12081/12081 co-relation queries the response was YES. [2024-10-24 19:27:50,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5218 conditions, 935 events. 427/935 cut-off events. For 12081/12081 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5164 event pairs, 86 based on Foata normal form. 3/938 useless extension candidates. Maximal degree in co-relation 5163. Up to 443 conditions per place. [2024-10-24 19:27:50,705 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 99 selfloop transitions, 61 changer transitions 16/177 dead transitions. [2024-10-24 19:27:50,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 177 transitions, 3119 flow [2024-10-24 19:27:50,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 19:27:50,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-24 19:27:50,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 123 transitions. [2024-10-24 19:27:50,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3942307692307692 [2024-10-24 19:27:50,706 INFO L175 Difference]: Start difference. First operand has 198 places, 142 transitions, 2505 flow. Second operand 13 states and 123 transitions. [2024-10-24 19:27:50,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 177 transitions, 3119 flow [2024-10-24 19:27:50,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 177 transitions, 2896 flow, removed 25 selfloop flow, removed 15 redundant places. [2024-10-24 19:27:50,733 INFO L231 Difference]: Finished difference. Result has 191 places, 135 transitions, 2299 flow [2024-10-24 19:27:50,733 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2292, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2299, PETRI_PLACES=191, PETRI_TRANSITIONS=135} [2024-10-24 19:27:50,733 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 165 predicate places. [2024-10-24 19:27:50,733 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 135 transitions, 2299 flow [2024-10-24 19:27:50,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:50,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:50,734 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:50,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-10-24 19:27:50,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:50,934 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:50,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:50,934 INFO L85 PathProgramCache]: Analyzing trace with hash -151236448, now seen corresponding path program 22 times [2024-10-24 19:27:50,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:50,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823465095] [2024-10-24 19:27:50,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:50,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:51,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:51,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:51,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823465095] [2024-10-24 19:27:51,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823465095] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:51,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698185519] [2024-10-24 19:27:51,024 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 19:27:51,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:51,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:51,025 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:51,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-24 19:27:51,060 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 19:27:51,061 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:51,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:51,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:51,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:51,147 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:51,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:51,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698185519] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:51,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:51,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-24 19:27:51,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010628057] [2024-10-24 19:27:51,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:51,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 19:27:51,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:51,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 19:27:51,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-10-24 19:27:51,296 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:51,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 135 transitions, 2299 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:51,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:51,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:51,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:51,648 INFO L124 PetriNetUnfolderBase]: 405/867 cut-off events. [2024-10-24 19:27:51,649 INFO L125 PetriNetUnfolderBase]: For 10951/10951 co-relation queries the response was YES. [2024-10-24 19:27:51,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4884 conditions, 867 events. 405/867 cut-off events. For 10951/10951 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4645 event pairs, 37 based on Foata normal form. 5/872 useless extension candidates. Maximal degree in co-relation 4830. Up to 187 conditions per place. [2024-10-24 19:27:51,655 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 83 selfloop transitions, 54 changer transitions 29/167 dead transitions. [2024-10-24 19:27:51,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 167 transitions, 2911 flow [2024-10-24 19:27:51,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 19:27:51,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 19:27:51,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 124 transitions. [2024-10-24 19:27:51,657 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36904761904761907 [2024-10-24 19:27:51,657 INFO L175 Difference]: Start difference. First operand has 191 places, 135 transitions, 2299 flow. Second operand 14 states and 124 transitions. [2024-10-24 19:27:51,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 167 transitions, 2911 flow [2024-10-24 19:27:51,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 167 transitions, 2686 flow, removed 11 selfloop flow, removed 14 redundant places. [2024-10-24 19:27:51,688 INFO L231 Difference]: Finished difference. Result has 186 places, 116 transitions, 1926 flow [2024-10-24 19:27:51,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2078, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1926, PETRI_PLACES=186, PETRI_TRANSITIONS=116} [2024-10-24 19:27:51,688 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 160 predicate places. [2024-10-24 19:27:51,689 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 116 transitions, 1926 flow [2024-10-24 19:27:51,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:51,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:51,689 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:51,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-10-24 19:27:51,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:51,890 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:51,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:51,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1420023990, now seen corresponding path program 23 times [2024-10-24 19:27:51,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:51,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184188861] [2024-10-24 19:27:51,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:51,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:51,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:51,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:51,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:51,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184188861] [2024-10-24 19:27:51,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184188861] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:51,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242133353] [2024-10-24 19:27:51,977 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 19:27:51,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:51,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:51,978 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:51,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-24 19:27:52,014 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 19:27:52,014 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:52,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 19:27:52,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:52,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:52,086 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:27:52,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242133353] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:52,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 19:27:52,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-10-24 19:27:52,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562208009] [2024-10-24 19:27:52,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:52,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:52,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:52,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:52,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-10-24 19:27:52,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:52,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 116 transitions, 1926 flow. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:52,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:52,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:52,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:52,204 INFO L124 PetriNetUnfolderBase]: 294/643 cut-off events. [2024-10-24 19:27:52,204 INFO L125 PetriNetUnfolderBase]: For 7749/7749 co-relation queries the response was YES. [2024-10-24 19:27:52,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3756 conditions, 643 events. 294/643 cut-off events. For 7749/7749 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3184 event pairs, 72 based on Foata normal form. 3/646 useless extension candidates. Maximal degree in co-relation 3705. Up to 301 conditions per place. [2024-10-24 19:27:52,207 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 82 selfloop transitions, 25 changer transitions 24/132 dead transitions. [2024-10-24 19:27:52,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 132 transitions, 2331 flow [2024-10-24 19:27:52,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:52,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:52,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 84 transitions. [2024-10-24 19:27:52,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3888888888888889 [2024-10-24 19:27:52,208 INFO L175 Difference]: Start difference. First operand has 186 places, 116 transitions, 1926 flow. Second operand 9 states and 84 transitions. [2024-10-24 19:27:52,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 132 transitions, 2331 flow [2024-10-24 19:27:52,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 132 transitions, 2031 flow, removed 25 selfloop flow, removed 24 redundant places. [2024-10-24 19:27:52,230 INFO L231 Difference]: Finished difference. Result has 161 places, 103 transitions, 1495 flow [2024-10-24 19:27:52,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1656, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1495, PETRI_PLACES=161, PETRI_TRANSITIONS=103} [2024-10-24 19:27:52,230 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 135 predicate places. [2024-10-24 19:27:52,230 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 103 transitions, 1495 flow [2024-10-24 19:27:52,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:52,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:52,231 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:52,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-10-24 19:27:52,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:52,431 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:52,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:52,432 INFO L85 PathProgramCache]: Analyzing trace with hash -689853732, now seen corresponding path program 24 times [2024-10-24 19:27:52,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:52,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067785798] [2024-10-24 19:27:52,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:52,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:52,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:52,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:52,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067785798] [2024-10-24 19:27:52,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067785798] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:52,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323313308] [2024-10-24 19:27:52,513 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-24 19:27:52,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:52,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:52,514 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:52,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-24 19:27:52,550 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2024-10-24 19:27:52,550 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:52,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 19:27:52,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:52,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:52,638 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:52,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:52,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323313308] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:52,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:52,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-10-24 19:27:52,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721418800] [2024-10-24 19:27:52,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:52,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 19:27:52,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:52,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 19:27:52,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2024-10-24 19:27:52,808 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:52,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 103 transitions, 1495 flow. Second operand has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 23 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:52,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:52,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:52,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:53,308 INFO L124 PetriNetUnfolderBase]: 360/777 cut-off events. [2024-10-24 19:27:53,308 INFO L125 PetriNetUnfolderBase]: For 6485/6485 co-relation queries the response was YES. [2024-10-24 19:27:53,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4125 conditions, 777 events. 360/777 cut-off events. For 6485/6485 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4010 event pairs, 55 based on Foata normal form. 2/779 useless extension candidates. Maximal degree in co-relation 4083. Up to 227 conditions per place. [2024-10-24 19:27:53,313 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 90 selfloop transitions, 57 changer transitions 44/192 dead transitions. [2024-10-24 19:27:53,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 192 transitions, 2708 flow [2024-10-24 19:27:53,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-24 19:27:53,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-10-24 19:27:53,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 193 transitions. [2024-10-24 19:27:53,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3496376811594203 [2024-10-24 19:27:53,314 INFO L175 Difference]: Start difference. First operand has 161 places, 103 transitions, 1495 flow. Second operand 23 states and 193 transitions. [2024-10-24 19:27:53,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 192 transitions, 2708 flow [2024-10-24 19:27:53,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 192 transitions, 2515 flow, removed 17 selfloop flow, removed 10 redundant places. [2024-10-24 19:27:53,326 INFO L231 Difference]: Finished difference. Result has 167 places, 117 transitions, 1819 flow [2024-10-24 19:27:53,327 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1368, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1819, PETRI_PLACES=167, PETRI_TRANSITIONS=117} [2024-10-24 19:27:53,327 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 141 predicate places. [2024-10-24 19:27:53,327 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 117 transitions, 1819 flow [2024-10-24 19:27:53,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 23 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:53,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:53,327 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:53,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-10-24 19:27:53,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-10-24 19:27:53,528 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:53,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:53,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1907218145, now seen corresponding path program 25 times [2024-10-24 19:27:53,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:53,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824807921] [2024-10-24 19:27:53,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:53,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:53,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:53,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:53,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:53,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824807921] [2024-10-24 19:27:53,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824807921] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:53,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038856734] [2024-10-24 19:27:53,568 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-24 19:27:53,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:53,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:53,569 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:53,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-10-24 19:27:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:53,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 19:27:53,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:53,615 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:53,616 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:53,670 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:53,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038856734] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:53,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:53,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-10-24 19:27:53,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256549594] [2024-10-24 19:27:53,671 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:53,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 19:27:53,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:53,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 19:27:53,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-24 19:27:53,686 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-24 19:27:53,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 117 transitions, 1819 flow. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 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) [2024-10-24 19:27:53,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:53,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-24 19:27:53,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:53,851 INFO L124 PetriNetUnfolderBase]: 218/511 cut-off events. [2024-10-24 19:27:53,851 INFO L125 PetriNetUnfolderBase]: For 5467/5467 co-relation queries the response was YES. [2024-10-24 19:27:53,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3067 conditions, 511 events. 218/511 cut-off events. For 5467/5467 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2523 event pairs, 48 based on Foata normal form. 6/505 useless extension candidates. Maximal degree in co-relation 3021. Up to 161 conditions per place. [2024-10-24 19:27:53,854 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 75 selfloop transitions, 48 changer transitions 0/146 dead transitions. [2024-10-24 19:27:53,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 146 transitions, 2151 flow [2024-10-24 19:27:53,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 19:27:53,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 19:27:53,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 155 transitions. [2024-10-24 19:27:53,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2024-10-24 19:27:53,855 INFO L175 Difference]: Start difference. First operand has 167 places, 117 transitions, 1819 flow. Second operand 15 states and 155 transitions. [2024-10-24 19:27:53,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 146 transitions, 2151 flow [2024-10-24 19:27:53,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 146 transitions, 2049 flow, removed 11 selfloop flow, removed 14 redundant places. [2024-10-24 19:27:53,867 INFO L231 Difference]: Finished difference. Result has 150 places, 118 transitions, 1840 flow [2024-10-24 19:27:53,867 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1636, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1840, PETRI_PLACES=150, PETRI_TRANSITIONS=118} [2024-10-24 19:27:53,867 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 124 predicate places. [2024-10-24 19:27:53,867 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 118 transitions, 1840 flow [2024-10-24 19:27:53,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 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) [2024-10-24 19:27:53,867 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:53,867 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:53,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-10-24 19:27:54,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-10-24 19:27:54,068 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:54,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:54,068 INFO L85 PathProgramCache]: Analyzing trace with hash -79644419, now seen corresponding path program 26 times [2024-10-24 19:27:54,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:54,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836204082] [2024-10-24 19:27:54,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:54,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:54,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:54,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:54,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836204082] [2024-10-24 19:27:54,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836204082] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:54,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837777676] [2024-10-24 19:27:54,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 19:27:54,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:54,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:54,100 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:54,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-10-24 19:27:54,136 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 19:27:54,136 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:54,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 19:27:54,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:54,208 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:54,386 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:54,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837777676] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:54,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:54,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 11] total 23 [2024-10-24 19:27:54,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288222117] [2024-10-24 19:27:54,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:54,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-24 19:27:54,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:54,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-24 19:27:54,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2024-10-24 19:27:54,390 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:54,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 118 transitions, 1840 flow. Second operand has 23 states, 23 states have (on average 5.956521739130435) internal successors, (137), 23 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:54,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:54,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:54,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:54,936 INFO L124 PetriNetUnfolderBase]: 336/702 cut-off events. [2024-10-24 19:27:54,936 INFO L125 PetriNetUnfolderBase]: For 6107/6107 co-relation queries the response was YES. [2024-10-24 19:27:54,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4206 conditions, 702 events. 336/702 cut-off events. For 6107/6107 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3394 event pairs, 79 based on Foata normal form. 5/707 useless extension candidates. Maximal degree in co-relation 4162. Up to 234 conditions per place. [2024-10-24 19:27:54,940 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 96 selfloop transitions, 81 changer transitions 15/193 dead transitions. [2024-10-24 19:27:54,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 193 transitions, 2885 flow [2024-10-24 19:27:54,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-24 19:27:54,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-10-24 19:27:54,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 205 transitions. [2024-10-24 19:27:54,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3416666666666667 [2024-10-24 19:27:54,941 INFO L175 Difference]: Start difference. First operand has 150 places, 118 transitions, 1840 flow. Second operand 25 states and 205 transitions. [2024-10-24 19:27:54,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 193 transitions, 2885 flow [2024-10-24 19:27:54,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 193 transitions, 2643 flow, removed 58 selfloop flow, removed 9 redundant places. [2024-10-24 19:27:54,955 INFO L231 Difference]: Finished difference. Result has 171 places, 139 transitions, 2241 flow [2024-10-24 19:27:54,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1636, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=2241, PETRI_PLACES=171, PETRI_TRANSITIONS=139} [2024-10-24 19:27:54,956 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 145 predicate places. [2024-10-24 19:27:54,956 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 139 transitions, 2241 flow [2024-10-24 19:27:54,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.956521739130435) internal successors, (137), 23 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:54,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:54,956 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:54,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-10-24 19:27:55,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:55,157 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:55,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:55,157 INFO L85 PathProgramCache]: Analyzing trace with hash 761436384, now seen corresponding path program 27 times [2024-10-24 19:27:55,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:55,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506636992] [2024-10-24 19:27:55,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:55,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:55,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:55,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:55,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506636992] [2024-10-24 19:27:55,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506636992] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:55,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588708545] [2024-10-24 19:27:55,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 19:27:55,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:55,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:55,185 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:55,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-10-24 19:27:55,220 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-24 19:27:55,221 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:55,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 19:27:55,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:55,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:55,230 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:55,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588708545] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:55,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:55,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 10 [2024-10-24 19:27:55,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746073459] [2024-10-24 19:27:55,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:55,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 19:27:55,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:55,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 19:27:55,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-24 19:27:55,289 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-24 19:27:55,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 139 transitions, 2241 flow. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:55,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:55,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-24 19:27:55,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:55,412 INFO L124 PetriNetUnfolderBase]: 266/592 cut-off events. [2024-10-24 19:27:55,412 INFO L125 PetriNetUnfolderBase]: For 6261/6261 co-relation queries the response was YES. [2024-10-24 19:27:55,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3729 conditions, 592 events. 266/592 cut-off events. For 6261/6261 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2979 event pairs, 81 based on Foata normal form. 9/585 useless extension candidates. Maximal degree in co-relation 3678. Up to 249 conditions per place. [2024-10-24 19:27:55,416 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 98 selfloop transitions, 30 changer transitions 7/156 dead transitions. [2024-10-24 19:27:55,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 156 transitions, 2672 flow [2024-10-24 19:27:55,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:55,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:55,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2024-10-24 19:27:55,417 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2024-10-24 19:27:55,417 INFO L175 Difference]: Start difference. First operand has 171 places, 139 transitions, 2241 flow. Second operand 9 states and 94 transitions. [2024-10-24 19:27:55,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 156 transitions, 2672 flow [2024-10-24 19:27:55,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 156 transitions, 2455 flow, removed 71 selfloop flow, removed 12 redundant places. [2024-10-24 19:27:55,432 INFO L231 Difference]: Finished difference. Result has 165 places, 140 transitions, 2130 flow [2024-10-24 19:27:55,432 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1982, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2130, PETRI_PLACES=165, PETRI_TRANSITIONS=140} [2024-10-24 19:27:55,433 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 139 predicate places. [2024-10-24 19:27:55,433 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 140 transitions, 2130 flow [2024-10-24 19:27:55,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:55,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:55,433 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:55,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-10-24 19:27:55,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:55,633 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:55,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:55,634 INFO L85 PathProgramCache]: Analyzing trace with hash 12855658, now seen corresponding path program 28 times [2024-10-24 19:27:55,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:55,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34141085] [2024-10-24 19:27:55,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:55,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:55,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:55,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:55,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34141085] [2024-10-24 19:27:55,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34141085] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:55,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067524541] [2024-10-24 19:27:55,674 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 19:27:55,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:55,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:55,676 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:55,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-10-24 19:27:55,722 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 19:27:55,722 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:55,723 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 19:27:55,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:55,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:55,732 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:55,779 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:55,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067524541] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:55,781 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:55,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-10-24 19:27:55,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581615390] [2024-10-24 19:27:55,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:55,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 19:27:55,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:55,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 19:27:55,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-24 19:27:55,805 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-10-24 19:27:55,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 140 transitions, 2130 flow. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:55,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:55,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-10-24 19:27:55,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:55,936 INFO L124 PetriNetUnfolderBase]: 243/513 cut-off events. [2024-10-24 19:27:55,936 INFO L125 PetriNetUnfolderBase]: For 5870/5870 co-relation queries the response was YES. [2024-10-24 19:27:55,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3300 conditions, 513 events. 243/513 cut-off events. For 5870/5870 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2285 event pairs, 61 based on Foata normal form. 11/516 useless extension candidates. Maximal degree in co-relation 3249. Up to 223 conditions per place. [2024-10-24 19:27:55,939 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 92 selfloop transitions, 45 changer transitions 5/157 dead transitions. [2024-10-24 19:27:55,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 157 transitions, 2523 flow [2024-10-24 19:27:55,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 19:27:55,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-24 19:27:55,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 132 transitions. [2024-10-24 19:27:55,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4230769230769231 [2024-10-24 19:27:55,940 INFO L175 Difference]: Start difference. First operand has 165 places, 140 transitions, 2130 flow. Second operand 13 states and 132 transitions. [2024-10-24 19:27:55,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 157 transitions, 2523 flow [2024-10-24 19:27:55,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 157 transitions, 2434 flow, removed 29 selfloop flow, removed 5 redundant places. [2024-10-24 19:27:55,956 INFO L231 Difference]: Finished difference. Result has 175 places, 138 transitions, 2130 flow [2024-10-24 19:27:55,956 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1931, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2130, PETRI_PLACES=175, PETRI_TRANSITIONS=138} [2024-10-24 19:27:55,956 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 149 predicate places. [2024-10-24 19:27:55,957 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 138 transitions, 2130 flow [2024-10-24 19:27:55,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:55,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:55,957 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:55,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-10-24 19:27:56,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:56,157 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:56,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:56,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1756084555, now seen corresponding path program 29 times [2024-10-24 19:27:56,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:56,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531243273] [2024-10-24 19:27:56,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:56,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:56,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:56,259 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:56,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:56,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531243273] [2024-10-24 19:27:56,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531243273] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:56,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952623028] [2024-10-24 19:27:56,260 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 19:27:56,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:56,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:56,262 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:56,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-10-24 19:27:56,298 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2024-10-24 19:27:56,298 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:56,299 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 19:27:56,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:56,377 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 19:27:56,377 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:27:56,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952623028] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:27:56,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 19:27:56,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 17 [2024-10-24 19:27:56,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730553214] [2024-10-24 19:27:56,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:27:56,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:27:56,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:56,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:27:56,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-10-24 19:27:56,382 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:56,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 138 transitions, 2130 flow. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:56,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:56,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:56,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:56,491 INFO L124 PetriNetUnfolderBase]: 288/582 cut-off events. [2024-10-24 19:27:56,491 INFO L125 PetriNetUnfolderBase]: For 5337/5337 co-relation queries the response was YES. [2024-10-24 19:27:56,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3578 conditions, 582 events. 288/582 cut-off events. For 5337/5337 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2488 event pairs, 43 based on Foata normal form. 3/585 useless extension candidates. Maximal degree in co-relation 3523. Up to 170 conditions per place. [2024-10-24 19:27:56,494 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 44 selfloop transitions, 12 changer transitions 98/155 dead transitions. [2024-10-24 19:27:56,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 155 transitions, 2504 flow [2024-10-24 19:27:56,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:27:56,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:27:56,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 80 transitions. [2024-10-24 19:27:56,494 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37037037037037035 [2024-10-24 19:27:56,494 INFO L175 Difference]: Start difference. First operand has 175 places, 138 transitions, 2130 flow. Second operand 9 states and 80 transitions. [2024-10-24 19:27:56,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 155 transitions, 2504 flow [2024-10-24 19:27:56,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 155 transitions, 2406 flow, removed 25 selfloop flow, removed 6 redundant places. [2024-10-24 19:27:56,509 INFO L231 Difference]: Finished difference. Result has 177 places, 55 transitions, 771 flow [2024-10-24 19:27:56,510 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2032, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=771, PETRI_PLACES=177, PETRI_TRANSITIONS=55} [2024-10-24 19:27:56,510 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 151 predicate places. [2024-10-24 19:27:56,510 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 55 transitions, 771 flow [2024-10-24 19:27:56,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:56,510 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:56,510 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:56,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-10-24 19:27:56,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-10-24 19:27:56,711 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:56,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:56,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1229531031, now seen corresponding path program 30 times [2024-10-24 19:27:56,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:56,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113642411] [2024-10-24 19:27:56,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:56,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:56,813 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:56,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:56,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113642411] [2024-10-24 19:27:56,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113642411] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:56,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253534271] [2024-10-24 19:27:56,814 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-24 19:27:56,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:56,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:56,815 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:56,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-10-24 19:27:56,852 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2024-10-24 19:27:56,852 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:56,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 19:27:56,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:56,985 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:56,985 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:57,208 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:57,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253534271] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:57,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:57,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 28 [2024-10-24 19:27:57,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282939697] [2024-10-24 19:27:57,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:57,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-24 19:27:57,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:57,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-24 19:27:57,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=665, Unknown=0, NotChecked=0, Total=812 [2024-10-24 19:27:57,213 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:57,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 55 transitions, 771 flow. Second operand has 29 states, 29 states have (on average 5.586206896551724) internal successors, (162), 29 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:57,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:57,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:57,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:57,897 INFO L124 PetriNetUnfolderBase]: 175/400 cut-off events. [2024-10-24 19:27:57,897 INFO L125 PetriNetUnfolderBase]: For 2788/2788 co-relation queries the response was YES. [2024-10-24 19:27:57,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2122 conditions, 400 events. 175/400 cut-off events. For 2788/2788 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1726 event pairs, 7 based on Foata normal form. 7/407 useless extension candidates. Maximal degree in co-relation 2068. Up to 90 conditions per place. [2024-10-24 19:27:57,899 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 66 selfloop transitions, 42 changer transitions 19/128 dead transitions. [2024-10-24 19:27:57,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 128 transitions, 1503 flow [2024-10-24 19:27:57,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-24 19:27:57,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-10-24 19:27:57,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 222 transitions. [2024-10-24 19:27:57,900 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.31896551724137934 [2024-10-24 19:27:57,900 INFO L175 Difference]: Start difference. First operand has 177 places, 55 transitions, 771 flow. Second operand 29 states and 222 transitions. [2024-10-24 19:27:57,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 128 transitions, 1503 flow [2024-10-24 19:27:57,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 128 transitions, 1039 flow, removed 43 selfloop flow, removed 42 redundant places. [2024-10-24 19:27:57,907 INFO L231 Difference]: Finished difference. Result has 136 places, 66 transitions, 681 flow [2024-10-24 19:27:57,908 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=681, PETRI_PLACES=136, PETRI_TRANSITIONS=66} [2024-10-24 19:27:57,908 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 110 predicate places. [2024-10-24 19:27:57,908 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 66 transitions, 681 flow [2024-10-24 19:27:57,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.586206896551724) internal successors, (162), 29 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:57,908 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:57,909 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:57,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-10-24 19:27:58,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-10-24 19:27:58,109 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:58,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:58,110 INFO L85 PathProgramCache]: Analyzing trace with hash -152928979, now seen corresponding path program 31 times [2024-10-24 19:27:58,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:58,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196705856] [2024-10-24 19:27:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:58,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:58,214 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:58,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:58,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196705856] [2024-10-24 19:27:58,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196705856] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:58,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481766087] [2024-10-24 19:27:58,215 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-24 19:27:58,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:58,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:58,216 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:58,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-10-24 19:27:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:58,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 19:27:58,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:58,345 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:58,345 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:58,539 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:58,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481766087] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:58,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:58,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2024-10-24 19:27:58,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951540458] [2024-10-24 19:27:58,540 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:58,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-24 19:27:58,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:58,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-24 19:27:58,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-10-24 19:27:58,542 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:58,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 66 transitions, 681 flow. Second operand has 27 states, 27 states have (on average 5.444444444444445) internal successors, (147), 27 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:58,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:58,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:58,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:58,855 INFO L124 PetriNetUnfolderBase]: 150/338 cut-off events. [2024-10-24 19:27:58,855 INFO L125 PetriNetUnfolderBase]: For 883/883 co-relation queries the response was YES. [2024-10-24 19:27:58,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1558 conditions, 338 events. 150/338 cut-off events. For 883/883 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1352 event pairs, 29 based on Foata normal form. 2/340 useless extension candidates. Maximal degree in co-relation 1518. Up to 100 conditions per place. [2024-10-24 19:27:58,857 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 34 selfloop transitions, 18 changer transitions 42/95 dead transitions. [2024-10-24 19:27:58,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 95 transitions, 961 flow [2024-10-24 19:27:58,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 19:27:58,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-24 19:27:58,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 121 transitions. [2024-10-24 19:27:58,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.33611111111111114 [2024-10-24 19:27:58,858 INFO L175 Difference]: Start difference. First operand has 136 places, 66 transitions, 681 flow. Second operand 15 states and 121 transitions. [2024-10-24 19:27:58,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 95 transitions, 961 flow [2024-10-24 19:27:58,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 95 transitions, 880 flow, removed 12 selfloop flow, removed 12 redundant places. [2024-10-24 19:27:58,861 INFO L231 Difference]: Finished difference. Result has 133 places, 47 transitions, 457 flow [2024-10-24 19:27:58,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=457, PETRI_PLACES=133, PETRI_TRANSITIONS=47} [2024-10-24 19:27:58,862 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 107 predicate places. [2024-10-24 19:27:58,862 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 47 transitions, 457 flow [2024-10-24 19:27:58,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.444444444444445) internal successors, (147), 27 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:58,862 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:58,862 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:58,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-10-24 19:27:59,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:59,063 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:59,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:59,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1706364613, now seen corresponding path program 32 times [2024-10-24 19:27:59,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:59,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414340664] [2024-10-24 19:27:59,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:59,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:27:59,166 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:59,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:27:59,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414340664] [2024-10-24 19:27:59,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414340664] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:27:59,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038169732] [2024-10-24 19:27:59,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 19:27:59,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:27:59,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:27:59,167 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:27:59,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-10-24 19:27:59,204 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 19:27:59,204 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:27:59,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 19:27:59,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:27:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:59,307 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:27:59,506 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:27:59,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038169732] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:27:59,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:27:59,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2024-10-24 19:27:59,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388426920] [2024-10-24 19:27:59,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:27:59,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-24 19:27:59,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:27:59,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-24 19:27:59,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=636, Unknown=0, NotChecked=0, Total=756 [2024-10-24 19:27:59,509 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:27:59,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 47 transitions, 457 flow. Second operand has 28 states, 28 states have (on average 5.357142857142857) internal successors, (150), 28 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:59,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:27:59,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:27:59,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:27:59,751 INFO L124 PetriNetUnfolderBase]: 90/204 cut-off events. [2024-10-24 19:27:59,751 INFO L125 PetriNetUnfolderBase]: For 533/533 co-relation queries the response was YES. [2024-10-24 19:27:59,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 967 conditions, 204 events. 90/204 cut-off events. For 533/533 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 653 event pairs, 0 based on Foata normal form. 1/205 useless extension candidates. Maximal degree in co-relation 927. Up to 46 conditions per place. [2024-10-24 19:27:59,752 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 24 selfloop transitions, 13 changer transitions 29/67 dead transitions. [2024-10-24 19:27:59,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 67 transitions, 637 flow [2024-10-24 19:27:59,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 19:27:59,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 19:27:59,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 105 transitions. [2024-10-24 19:27:59,753 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3125 [2024-10-24 19:27:59,753 INFO L175 Difference]: Start difference. First operand has 133 places, 47 transitions, 457 flow. Second operand 14 states and 105 transitions. [2024-10-24 19:27:59,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 67 transitions, 637 flow [2024-10-24 19:27:59,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 67 transitions, 524 flow, removed 10 selfloop flow, removed 21 redundant places. [2024-10-24 19:27:59,755 INFO L231 Difference]: Finished difference. Result has 105 places, 27 transitions, 192 flow [2024-10-24 19:27:59,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=192, PETRI_PLACES=105, PETRI_TRANSITIONS=27} [2024-10-24 19:27:59,756 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 79 predicate places. [2024-10-24 19:27:59,756 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 27 transitions, 192 flow [2024-10-24 19:27:59,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.357142857142857) internal successors, (150), 28 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:27:59,756 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:27:59,756 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:27:59,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-10-24 19:27:59,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2024-10-24 19:27:59,957 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:27:59,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:27:59,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1812132645, now seen corresponding path program 33 times [2024-10-24 19:27:59,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:27:59,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124919535] [2024-10-24 19:27:59,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:27:59,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:27:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:28:00,067 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:28:00,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:28:00,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124919535] [2024-10-24 19:28:00,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124919535] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:28:00,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934724268] [2024-10-24 19:28:00,068 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 19:28:00,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:28:00,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:28:00,069 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:28:00,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-10-24 19:28:00,105 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-24 19:28:00,106 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:28:00,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 19:28:00,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:28:00,215 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:28:00,216 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:28:00,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:28:00,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934724268] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:28:00,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:28:00,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2024-10-24 19:28:00,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833317394] [2024-10-24 19:28:00,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:28:00,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-24 19:28:00,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:28:00,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-24 19:28:00,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2024-10-24 19:28:00,406 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:28:00,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 27 transitions, 192 flow. Second operand has 28 states, 28 states have (on average 5.392857142857143) internal successors, (151), 28 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:28:00,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:28:00,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:28:00,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:28:00,587 INFO L124 PetriNetUnfolderBase]: 38/97 cut-off events. [2024-10-24 19:28:00,587 INFO L125 PetriNetUnfolderBase]: For 147/147 co-relation queries the response was YES. [2024-10-24 19:28:00,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 97 events. 38/97 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 216 event pairs, 0 based on Foata normal form. 1/98 useless extension candidates. Maximal degree in co-relation 383. Up to 23 conditions per place. [2024-10-24 19:28:00,588 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 23 selfloop transitions, 10 changer transitions 13/47 dead transitions. [2024-10-24 19:28:00,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 47 transitions, 328 flow [2024-10-24 19:28:00,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 19:28:00,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 19:28:00,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 102 transitions. [2024-10-24 19:28:00,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.30357142857142855 [2024-10-24 19:28:00,588 INFO L175 Difference]: Start difference. First operand has 105 places, 27 transitions, 192 flow. Second operand 14 states and 102 transitions. [2024-10-24 19:28:00,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 47 transitions, 328 flow [2024-10-24 19:28:00,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 47 transitions, 258 flow, removed 1 selfloop flow, removed 25 redundant places. [2024-10-24 19:28:00,589 INFO L231 Difference]: Finished difference. Result has 80 places, 23 transitions, 111 flow [2024-10-24 19:28:00,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=111, PETRI_PLACES=80, PETRI_TRANSITIONS=23} [2024-10-24 19:28:00,590 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 54 predicate places. [2024-10-24 19:28:00,590 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 23 transitions, 111 flow [2024-10-24 19:28:00,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.392857142857143) internal successors, (151), 28 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:28:00,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:28:00,590 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:28:00,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-10-24 19:28:00,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:28:00,791 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 19:28:00,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:28:00,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1276902843, now seen corresponding path program 34 times [2024-10-24 19:28:00,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:28:00,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467526266] [2024-10-24 19:28:00,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:28:00,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:28:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:28:00,893 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:28:00,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:28:00,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467526266] [2024-10-24 19:28:00,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467526266] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 19:28:00,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061605166] [2024-10-24 19:28:00,894 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 19:28:00,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 19:28:00,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:28:00,895 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 19:28:00,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-10-24 19:28:00,933 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 19:28:00,933 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 19:28:00,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 19:28:00,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:28:01,070 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:28:01,070 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 19:28:01,277 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:28:01,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061605166] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 19:28:01,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 19:28:01,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2024-10-24 19:28:01,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889172598] [2024-10-24 19:28:01,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 19:28:01,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-24 19:28:01,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:28:01,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-24 19:28:01,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=619, Unknown=0, NotChecked=0, Total=756 [2024-10-24 19:28:01,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2024-10-24 19:28:01,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 23 transitions, 111 flow. Second operand has 28 states, 28 states have (on average 5.392857142857143) internal successors, (151), 28 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:28:01,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:28:01,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2024-10-24 19:28:01,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:28:01,438 INFO L124 PetriNetUnfolderBase]: 24/61 cut-off events. [2024-10-24 19:28:01,438 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-10-24 19:28:01,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 61 events. 24/61 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 event pairs, 0 based on Foata normal form. 1/62 useless extension candidates. Maximal degree in co-relation 211. Up to 21 conditions per place. [2024-10-24 19:28:01,438 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 0 selfloop transitions, 0 changer transitions 33/33 dead transitions. [2024-10-24 19:28:01,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 33 transitions, 196 flow [2024-10-24 19:28:01,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 19:28:01,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-24 19:28:01,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 86 transitions. [2024-10-24 19:28:01,439 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.27564102564102566 [2024-10-24 19:28:01,439 INFO L175 Difference]: Start difference. First operand has 80 places, 23 transitions, 111 flow. Second operand 13 states and 86 transitions. [2024-10-24 19:28:01,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 33 transitions, 196 flow [2024-10-24 19:28:01,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 33 transitions, 162 flow, removed 2 selfloop flow, removed 15 redundant places. [2024-10-24 19:28:01,440 INFO L231 Difference]: Finished difference. Result has 69 places, 0 transitions, 0 flow [2024-10-24 19:28:01,440 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=69, PETRI_TRANSITIONS=0} [2024-10-24 19:28:01,440 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 43 predicate places. [2024-10-24 19:28:01,441 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 0 transitions, 0 flow [2024-10-24 19:28:01,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.392857142857143) internal successors, (151), 28 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:28:01,443 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-10-24 19:28:01,444 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-10-24 19:28:01,444 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-24 19:28:01,444 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-24 19:28:01,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-10-24 19:28:01,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2024-10-24 19:28:01,645 INFO L407 BasicCegarLoop]: Path program histogram: [34, 20, 5, 5] [2024-10-24 19:28:01,648 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 19:28:01,648 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:28:01,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:28:01 BasicIcfg [2024-10-24 19:28:01,652 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:28:01,652 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:28:01,652 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:28:01,652 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:28:01,653 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:27:13" (3/4) ... [2024-10-24 19:28:01,654 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 19:28:01,657 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-24 19:28:01,657 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-24 19:28:01,662 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2024-10-24 19:28:01,663 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-24 19:28:01,663 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-24 19:28:01,664 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 19:28:01,748 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 19:28:01,748 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 19:28:01,749 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:28:01,749 INFO L158 Benchmark]: Toolchain (without parser) took 48802.65ms. Allocated memory was 155.2MB in the beginning and 497.0MB in the end (delta: 341.8MB). Free memory was 90.0MB in the beginning and 260.9MB in the end (delta: -170.9MB). Peak memory consumption was 171.7MB. Max. memory is 16.1GB. [2024-10-24 19:28:01,749 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 117.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:28:01,750 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.38ms. Allocated memory is still 155.2MB. Free memory was 89.8MB in the beginning and 77.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 19:28:01,750 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.01ms. Allocated memory is still 155.2MB. Free memory was 77.2MB in the beginning and 75.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:28:01,750 INFO L158 Benchmark]: Boogie Preprocessor took 30.28ms. Allocated memory is still 155.2MB. Free memory was 75.5MB in the beginning and 73.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:28:01,751 INFO L158 Benchmark]: RCFGBuilder took 529.27ms. Allocated memory is still 155.2MB. Free memory was 73.6MB in the beginning and 109.9MB in the end (delta: -36.2MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2024-10-24 19:28:01,751 INFO L158 Benchmark]: TraceAbstraction took 47867.11ms. Allocated memory was 155.2MB in the beginning and 497.0MB in the end (delta: 341.8MB). Free memory was 109.9MB in the beginning and 265.1MB in the end (delta: -155.2MB). Peak memory consumption was 187.4MB. Max. memory is 16.1GB. [2024-10-24 19:28:01,752 INFO L158 Benchmark]: Witness Printer took 96.49ms. Allocated memory is still 497.0MB. Free memory was 265.1MB in the beginning and 260.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 19:28:01,753 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 117.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.38ms. Allocated memory is still 155.2MB. Free memory was 89.8MB in the beginning and 77.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.01ms. Allocated memory is still 155.2MB. Free memory was 77.2MB in the beginning and 75.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.28ms. Allocated memory is still 155.2MB. Free memory was 75.5MB in the beginning and 73.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.27ms. Allocated memory is still 155.2MB. Free memory was 73.6MB in the beginning and 109.9MB in the end (delta: -36.2MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * TraceAbstraction took 47867.11ms. Allocated memory was 155.2MB in the beginning and 497.0MB in the end (delta: 341.8MB). Free memory was 109.9MB in the beginning and 265.1MB in the end (delta: -155.2MB). Peak memory consumption was 187.4MB. Max. memory is 16.1GB. * Witness Printer took 96.49ms. Allocated memory is still 497.0MB. Free memory was 265.1MB in the beginning and 260.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 66]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 35 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 47.8s, OverallIterations: 64, TraceHistogramMax: 2, PathProgramHistogramMax: 34, EmptinessCheckTime: 0.0s, AutomataDifference: 23.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3375 SdHoareTripleChecker+Valid, 11.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3327 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 9.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 768 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23521 IncrementalHoareTripleChecker+Invalid, 24289 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 768 mSolverCounterUnsat, 17 mSDtfsCounter, 23521 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2335 GetRequests, 1017 SyntacticMatches, 4 SemanticMatches, 1314 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9455 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5051occurred in iteration=40, InterpolantAutomatonStates: 848, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 14.5s InterpolantComputationTime, 1862 NumberOfCodeBlocks, 1862 NumberOfCodeBlocksAsserted, 134 NumberOfCheckSat, 2370 ConstructedInterpolants, 0 QuantifiedInterpolants, 13633 SizeOfPredicates, 122 NumberOfNonLiveVariables, 3475 ConjunctsInSsa, 462 ConjunctsInUnsatCore, 132 InterpolantComputations, 32 PerfectInterpolantSequences, 59/304 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 19:28:01,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE