./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-misc-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/parallel-misc-5.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 103efe8931e099ca6c2446ad32c4c46818a6d213fc850bc42032bda38d601e6f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:16:20,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:16:20,196 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:16:20,199 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:16:20,200 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:16:20,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:16:20,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:16:20,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:16:20,224 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:16:20,225 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:16:20,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:16:20,226 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:16:20,227 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:16:20,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:16:20,230 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:16:20,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:16:20,231 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:16:20,231 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:16:20,231 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:16:20,231 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:16:20,232 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:16:20,232 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:16:20,236 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:16:20,236 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:16:20,237 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:16:20,237 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:16:20,237 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:16:20,237 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:16:20,238 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:16:20,238 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:16:20,238 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:16:20,238 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:16:20,238 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:16:20,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:16:20,239 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:16:20,240 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:16:20,241 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:16:20,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:16:20,242 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:16:20,242 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:16:20,242 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:16:20,243 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:16:20,243 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 103efe8931e099ca6c2446ad32c4c46818a6d213fc850bc42032bda38d601e6f [2024-11-10 18:16:20,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:16:20,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:16:20,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:16:20,530 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:16:20,531 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:16:20,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-misc-5.wvr.c [2024-11-10 18:16:21,980 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:16:22,185 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:16:22,185 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-5.wvr.c [2024-11-10 18:16:22,193 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe7c19fb/7a44c20d29dd41c18dc240716e107de8/FLAG04247f63d [2024-11-10 18:16:22,558 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fe7c19fb/7a44c20d29dd41c18dc240716e107de8 [2024-11-10 18:16:22,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:16:22,563 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:16:22,566 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:16:22,566 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:16:22,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:16:22,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:16:22" (1/1) ... [2024-11-10 18:16:22,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@542eb672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:22, skipping insertion in model container [2024-11-10 18:16:22,572 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:16:22" (1/1) ... [2024-11-10 18:16:22,594 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:16:22,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:16:22,904 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:16:22,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:16:22,945 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:16:22,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:22 WrapperNode [2024-11-10 18:16:22,946 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:16:22,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:16:22,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:16:22,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:16:22,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:22" (1/1) ... [2024-11-10 18:16:22,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:22" (1/1) ... [2024-11-10 18:16:22,979 INFO L138 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 135 [2024-11-10 18:16:22,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:16:22,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:16:22,982 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:16:22,982 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:16:22,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:22" (1/1) ... [2024-11-10 18:16:22,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:22" (1/1) ... [2024-11-10 18:16:22,995 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:22" (1/1) ... [2024-11-10 18:16:23,008 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-10 18:16:23,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:22" (1/1) ... [2024-11-10 18:16:23,009 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:22" (1/1) ... [2024-11-10 18:16:23,015 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:22" (1/1) ... [2024-11-10 18:16:23,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:22" (1/1) ... [2024-11-10 18:16:23,021 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:22" (1/1) ... [2024-11-10 18:16:23,022 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:22" (1/1) ... [2024-11-10 18:16:23,028 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:16:23,029 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:16:23,033 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:16:23,033 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:16:23,034 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:22" (1/1) ... [2024-11-10 18:16:23,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:16:23,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:16:23,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:16:23,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:16:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:16:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 18:16:23,115 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 18:16:23,115 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 18:16:23,115 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 18:16:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 18:16:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 18:16:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:16:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 18:16:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 18:16:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:16:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:16:23,118 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 18:16:23,202 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:16:23,204 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:16:23,453 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:16:23,453 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:16:23,634 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:16:23,634 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:16:23,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:16:23 BoogieIcfgContainer [2024-11-10 18:16:23,635 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:16:23,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:16:23,637 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:16:23,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:16:23,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:16:22" (1/3) ... [2024-11-10 18:16:23,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:16:23, skipping insertion in model container [2024-11-10 18:16:23,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:16:22" (2/3) ... [2024-11-10 18:16:23,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:16:23, skipping insertion in model container [2024-11-10 18:16:23,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:16:23" (3/3) ... [2024-11-10 18:16:23,644 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-5.wvr.c [2024-11-10 18:16:23,660 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:16:23,661 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 18:16:23,662 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:16:23,723 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 18:16:23,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 45 transitions, 111 flow [2024-11-10 18:16:23,797 INFO L124 PetriNetUnfolderBase]: 6/42 cut-off events. [2024-11-10 18:16:23,797 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 18:16:23,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 42 events. 6/42 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 94 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2024-11-10 18:16:23,801 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 45 transitions, 111 flow [2024-11-10 18:16:23,807 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 41 transitions, 100 flow [2024-11-10 18:16:23,821 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:16:23,829 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;@59348a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:16:23,830 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-10 18:16:23,852 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:16:23,853 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2024-11-10 18:16:23,853 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 18:16:23,853 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:23,854 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:23,859 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:23,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:23,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1791304094, now seen corresponding path program 1 times [2024-11-10 18:16:23,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:23,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652518971] [2024-11-10 18:16:23,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:23,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:24,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:24,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:24,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652518971] [2024-11-10 18:16:24,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652518971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:16:24,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:16:24,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:16:24,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309921468] [2024-11-10 18:16:24,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:16:24,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 18:16:24,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:24,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 18:16:24,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 18:16:24,162 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-10 18:16:24,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 100 flow. Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:24,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:24,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-10 18:16:24,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:24,502 INFO L124 PetriNetUnfolderBase]: 1002/1467 cut-off events. [2024-11-10 18:16:24,503 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2024-11-10 18:16:24,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3045 conditions, 1467 events. 1002/1467 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 6919 event pairs, 768 based on Foata normal form. 118/1422 useless extension candidates. Maximal degree in co-relation 2877. Up to 1435 conditions per place. [2024-11-10 18:16:24,521 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 28 selfloop transitions, 0 changer transitions 0/37 dead transitions. [2024-11-10 18:16:24,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 37 transitions, 148 flow [2024-11-10 18:16:24,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 18:16:24,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 18:16:24,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 57 transitions. [2024-11-10 18:16:24,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-11-10 18:16:24,535 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 100 flow. Second operand 2 states and 57 transitions. [2024-11-10 18:16:24,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 37 transitions, 148 flow [2024-11-10 18:16:24,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 37 transitions, 136 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-10 18:16:24,544 INFO L231 Difference]: Finished difference. Result has 38 places, 37 transitions, 80 flow [2024-11-10 18:16:24,546 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=80, PETRI_PLACES=38, PETRI_TRANSITIONS=37} [2024-11-10 18:16:24,549 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -7 predicate places. [2024-11-10 18:16:24,550 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 37 transitions, 80 flow [2024-11-10 18:16:24,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:24,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:24,552 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:24,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:16:24,553 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:24,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:24,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1936064404, now seen corresponding path program 1 times [2024-11-10 18:16:24,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:24,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712044189] [2024-11-10 18:16:24,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:24,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:24,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:24,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:24,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712044189] [2024-11-10 18:16:24,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712044189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:16:24,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:16:24,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:16:24,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897899860] [2024-11-10 18:16:24,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:16:24,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:16:24,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:24,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:16:24,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:16:24,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 45 [2024-11-10 18:16:24,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 37 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:24,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:24,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 45 [2024-11-10 18:16:24,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:25,146 INFO L124 PetriNetUnfolderBase]: 977/1435 cut-off events. [2024-11-10 18:16:25,146 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:16:25,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2886 conditions, 1435 events. 977/1435 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 6246 event pairs, 70 based on Foata normal form. 0/1284 useless extension candidates. Maximal degree in co-relation 2883. Up to 858 conditions per place. [2024-11-10 18:16:25,158 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 55 selfloop transitions, 4 changer transitions 0/67 dead transitions. [2024-11-10 18:16:25,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 67 transitions, 260 flow [2024-11-10 18:16:25,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:16:25,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:16:25,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 108 transitions. [2024-11-10 18:16:25,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-10 18:16:25,161 INFO L175 Difference]: Start difference. First operand has 38 places, 37 transitions, 80 flow. Second operand 4 states and 108 transitions. [2024-11-10 18:16:25,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 67 transitions, 260 flow [2024-11-10 18:16:25,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 67 transitions, 260 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:16:25,186 INFO L231 Difference]: Finished difference. Result has 43 places, 39 transitions, 101 flow [2024-11-10 18:16:25,186 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=101, PETRI_PLACES=43, PETRI_TRANSITIONS=39} [2024-11-10 18:16:25,193 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -2 predicate places. [2024-11-10 18:16:25,193 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 39 transitions, 101 flow [2024-11-10 18:16:25,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:25,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:25,193 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:25,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:16:25,194 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:25,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:25,194 INFO L85 PathProgramCache]: Analyzing trace with hash -897818242, now seen corresponding path program 2 times [2024-11-10 18:16:25,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:25,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787759696] [2024-11-10 18:16:25,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:25,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:25,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:25,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:25,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787759696] [2024-11-10 18:16:25,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787759696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:16:25,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:16:25,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:16:25,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211971449] [2024-11-10 18:16:25,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:16:25,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:16:25,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:25,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:16:25,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:16:25,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 45 [2024-11-10 18:16:25,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 39 transitions, 101 flow. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:25,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:25,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 45 [2024-11-10 18:16:25,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:25,760 INFO L124 PetriNetUnfolderBase]: 1267/1877 cut-off events. [2024-11-10 18:16:25,762 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2024-11-10 18:16:25,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4004 conditions, 1877 events. 1267/1877 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 8480 event pairs, 191 based on Foata normal form. 0/1667 useless extension candidates. Maximal degree in co-relation 3998. Up to 821 conditions per place. [2024-11-10 18:16:25,776 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 67 selfloop transitions, 7 changer transitions 0/82 dead transitions. [2024-11-10 18:16:25,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 82 transitions, 349 flow [2024-11-10 18:16:25,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:16:25,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:16:25,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 134 transitions. [2024-11-10 18:16:25,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5955555555555555 [2024-11-10 18:16:25,778 INFO L175 Difference]: Start difference. First operand has 43 places, 39 transitions, 101 flow. Second operand 5 states and 134 transitions. [2024-11-10 18:16:25,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 82 transitions, 349 flow [2024-11-10 18:16:25,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 82 transitions, 344 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:16:25,782 INFO L231 Difference]: Finished difference. Result has 49 places, 43 transitions, 142 flow [2024-11-10 18:16:25,783 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=142, PETRI_PLACES=49, PETRI_TRANSITIONS=43} [2024-11-10 18:16:25,784 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 4 predicate places. [2024-11-10 18:16:25,785 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 43 transitions, 142 flow [2024-11-10 18:16:25,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:25,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:25,785 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:25,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:16:25,786 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:25,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:25,787 INFO L85 PathProgramCache]: Analyzing trace with hash 526351458, now seen corresponding path program 3 times [2024-11-10 18:16:25,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:25,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710846016] [2024-11-10 18:16:25,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:25,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:25,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:25,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:25,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:25,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710846016] [2024-11-10 18:16:25,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710846016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:16:25,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:16:25,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:16:25,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229478088] [2024-11-10 18:16:25,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:16:25,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:16:25,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:25,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:16:25,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:16:25,944 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 45 [2024-11-10 18:16:25,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 43 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:25,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:25,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 45 [2024-11-10 18:16:25,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:26,246 INFO L124 PetriNetUnfolderBase]: 1876/2802 cut-off events. [2024-11-10 18:16:26,246 INFO L125 PetriNetUnfolderBase]: For 768/768 co-relation queries the response was YES. [2024-11-10 18:16:26,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6240 conditions, 2802 events. 1876/2802 cut-off events. For 768/768 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 13936 event pairs, 448 based on Foata normal form. 48/2588 useless extension candidates. Maximal degree in co-relation 6231. Up to 1393 conditions per place. [2024-11-10 18:16:26,267 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 70 selfloop transitions, 7 changer transitions 0/85 dead transitions. [2024-11-10 18:16:26,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 85 transitions, 397 flow [2024-11-10 18:16:26,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:16:26,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:16:26,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 134 transitions. [2024-11-10 18:16:26,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5955555555555555 [2024-11-10 18:16:26,269 INFO L175 Difference]: Start difference. First operand has 49 places, 43 transitions, 142 flow. Second operand 5 states and 134 transitions. [2024-11-10 18:16:26,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 85 transitions, 397 flow [2024-11-10 18:16:26,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 85 transitions, 392 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:16:26,274 INFO L231 Difference]: Finished difference. Result has 53 places, 44 transitions, 161 flow [2024-11-10 18:16:26,275 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=161, PETRI_PLACES=53, PETRI_TRANSITIONS=44} [2024-11-10 18:16:26,275 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 8 predicate places. [2024-11-10 18:16:26,276 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 44 transitions, 161 flow [2024-11-10 18:16:26,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:26,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:26,276 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:26,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 18:16:26,277 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:26,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:26,277 INFO L85 PathProgramCache]: Analyzing trace with hash 610765160, now seen corresponding path program 4 times [2024-11-10 18:16:26,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:26,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464697467] [2024-11-10 18:16:26,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:26,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:26,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:26,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:26,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464697467] [2024-11-10 18:16:26,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464697467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:16:26,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:16:26,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:16:26,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442150339] [2024-11-10 18:16:26,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:16:26,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:16:26,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:26,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:16:26,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:16:26,465 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 45 [2024-11-10 18:16:26,466 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 44 transitions, 161 flow. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:26,466 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:26,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 45 [2024-11-10 18:16:26,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:27,100 INFO L124 PetriNetUnfolderBase]: 4560/6854 cut-off events. [2024-11-10 18:16:27,101 INFO L125 PetriNetUnfolderBase]: For 3218/3218 co-relation queries the response was YES. [2024-11-10 18:16:27,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15560 conditions, 6854 events. 4560/6854 cut-off events. For 3218/3218 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 39143 event pairs, 797 based on Foata normal form. 100/6296 useless extension candidates. Maximal degree in co-relation 15550. Up to 2204 conditions per place. [2024-11-10 18:16:27,139 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 77 selfloop transitions, 9 changer transitions 27/121 dead transitions. [2024-11-10 18:16:27,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 121 transitions, 627 flow [2024-11-10 18:16:27,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 18:16:27,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 18:16:27,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 171 transitions. [2024-11-10 18:16:27,143 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-11-10 18:16:27,144 INFO L175 Difference]: Start difference. First operand has 53 places, 44 transitions, 161 flow. Second operand 6 states and 171 transitions. [2024-11-10 18:16:27,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 121 transitions, 627 flow [2024-11-10 18:16:27,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 121 transitions, 604 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 18:16:27,158 INFO L231 Difference]: Finished difference. Result has 59 places, 47 transitions, 202 flow [2024-11-10 18:16:27,159 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=202, PETRI_PLACES=59, PETRI_TRANSITIONS=47} [2024-11-10 18:16:27,161 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 14 predicate places. [2024-11-10 18:16:27,162 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 47 transitions, 202 flow [2024-11-10 18:16:27,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:27,163 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:27,163 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:27,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:16:27,163 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:27,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:27,164 INFO L85 PathProgramCache]: Analyzing trace with hash 388629143, now seen corresponding path program 1 times [2024-11-10 18:16:27,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:27,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170658641] [2024-11-10 18:16:27,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:27,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:27,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:27,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:27,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170658641] [2024-11-10 18:16:27,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170658641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:16:27,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:16:27,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:16:27,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189602503] [2024-11-10 18:16:27,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:16:27,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:16:27,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:27,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:16:27,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:16:27,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-10 18:16:27,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 47 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:27,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:27,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-10 18:16:27,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:27,752 INFO L124 PetriNetUnfolderBase]: 3420/5302 cut-off events. [2024-11-10 18:16:27,753 INFO L125 PetriNetUnfolderBase]: For 3606/3606 co-relation queries the response was YES. [2024-11-10 18:16:27,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12897 conditions, 5302 events. 3420/5302 cut-off events. For 3606/3606 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 29653 event pairs, 1595 based on Foata normal form. 136/4870 useless extension candidates. Maximal degree in co-relation 12883. Up to 2912 conditions per place. [2024-11-10 18:16:27,811 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 60 selfloop transitions, 2 changer transitions 1/72 dead transitions. [2024-11-10 18:16:27,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 72 transitions, 412 flow [2024-11-10 18:16:27,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:16:27,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:16:27,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2024-11-10 18:16:27,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.674074074074074 [2024-11-10 18:16:27,814 INFO L175 Difference]: Start difference. First operand has 59 places, 47 transitions, 202 flow. Second operand 3 states and 91 transitions. [2024-11-10 18:16:27,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 72 transitions, 412 flow [2024-11-10 18:16:27,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 72 transitions, 382 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-10 18:16:27,823 INFO L231 Difference]: Finished difference. Result has 57 places, 48 transitions, 194 flow [2024-11-10 18:16:27,824 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=57, PETRI_TRANSITIONS=48} [2024-11-10 18:16:27,824 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 12 predicate places. [2024-11-10 18:16:27,825 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 48 transitions, 194 flow [2024-11-10 18:16:27,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:27,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:27,825 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:27,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 18:16:27,825 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:27,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:27,826 INFO L85 PathProgramCache]: Analyzing trace with hash -859223883, now seen corresponding path program 1 times [2024-11-10 18:16:27,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:27,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200174592] [2024-11-10 18:16:27,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:27,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:27,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:27,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:27,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200174592] [2024-11-10 18:16:27,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200174592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:16:27,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:16:27,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:16:27,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400882373] [2024-11-10 18:16:27,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:16:27,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:16:27,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:27,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:16:27,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:16:27,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-10 18:16:27,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 48 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:27,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:27,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-10 18:16:27,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:28,642 INFO L124 PetriNetUnfolderBase]: 4765/7428 cut-off events. [2024-11-10 18:16:28,643 INFO L125 PetriNetUnfolderBase]: For 4175/4175 co-relation queries the response was YES. [2024-11-10 18:16:28,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18184 conditions, 7428 events. 4765/7428 cut-off events. For 4175/4175 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 43957 event pairs, 1905 based on Foata normal form. 152/6750 useless extension candidates. Maximal degree in co-relation 18171. Up to 4647 conditions per place. [2024-11-10 18:16:28,690 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 60 selfloop transitions, 2 changer transitions 1/72 dead transitions. [2024-11-10 18:16:28,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 72 transitions, 404 flow [2024-11-10 18:16:28,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:16:28,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:16:28,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-11-10 18:16:28,693 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6592592592592592 [2024-11-10 18:16:28,693 INFO L175 Difference]: Start difference. First operand has 57 places, 48 transitions, 194 flow. Second operand 3 states and 89 transitions. [2024-11-10 18:16:28,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 72 transitions, 404 flow [2024-11-10 18:16:28,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 72 transitions, 401 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:16:28,699 INFO L231 Difference]: Finished difference. Result has 59 places, 49 transitions, 206 flow [2024-11-10 18:16:28,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=59, PETRI_TRANSITIONS=49} [2024-11-10 18:16:28,701 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 14 predicate places. [2024-11-10 18:16:28,701 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 49 transitions, 206 flow [2024-11-10 18:16:28,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:28,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:28,702 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:28,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 18:16:28,703 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:28,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:28,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1272167712, now seen corresponding path program 1 times [2024-11-10 18:16:28,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:28,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717971273] [2024-11-10 18:16:28,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:28,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:29,022 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:29,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:29,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717971273] [2024-11-10 18:16:29,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717971273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:16:29,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781470286] [2024-11-10 18:16:29,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:29,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:16:29,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:16:29,026 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:16:29,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 18:16:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:29,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 18:16:29,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:16:29,294 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:29,295 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:16:29,524 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:29,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781470286] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:16:29,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:16:29,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 7] total 14 [2024-11-10 18:16:29,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375409936] [2024-11-10 18:16:29,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:16:29,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 18:16:29,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:29,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 18:16:29,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-10 18:16:29,531 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2024-11-10 18:16:29,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 49 transitions, 206 flow. Second operand has 15 states, 15 states have (on average 14.666666666666666) internal successors, (220), 15 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:29,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:29,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2024-11-10 18:16:29,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:33,351 INFO L124 PetriNetUnfolderBase]: 19086/28932 cut-off events. [2024-11-10 18:16:33,351 INFO L125 PetriNetUnfolderBase]: For 20298/20298 co-relation queries the response was YES. [2024-11-10 18:16:33,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72758 conditions, 28932 events. 19086/28932 cut-off events. For 20298/20298 co-relation queries the response was YES. Maximal size of possible extension queue 938. Compared 193417 event pairs, 1364 based on Foata normal form. 664/26552 useless extension candidates. Maximal degree in co-relation 72744. Up to 5432 conditions per place. [2024-11-10 18:16:33,599 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 349 selfloop transitions, 96 changer transitions 37/489 dead transitions. [2024-11-10 18:16:33,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 489 transitions, 2703 flow [2024-11-10 18:16:33,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-10 18:16:33,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-11-10 18:16:33,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 790 transitions. [2024-11-10 18:16:33,603 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5486111111111112 [2024-11-10 18:16:33,603 INFO L175 Difference]: Start difference. First operand has 59 places, 49 transitions, 206 flow. Second operand 32 states and 790 transitions. [2024-11-10 18:16:33,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 489 transitions, 2703 flow [2024-11-10 18:16:33,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 489 transitions, 2685 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:16:33,617 INFO L231 Difference]: Finished difference. Result has 117 places, 141 transitions, 1198 flow [2024-11-10 18:16:33,617 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1198, PETRI_PLACES=117, PETRI_TRANSITIONS=141} [2024-11-10 18:16:33,618 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 72 predicate places. [2024-11-10 18:16:33,618 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 141 transitions, 1198 flow [2024-11-10 18:16:33,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 14.666666666666666) internal successors, (220), 15 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:33,619 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:33,619 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:33,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 18:16:33,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:16:33,823 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:33,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:33,824 INFO L85 PathProgramCache]: Analyzing trace with hash -472975293, now seen corresponding path program 2 times [2024-11-10 18:16:33,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:33,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124839299] [2024-11-10 18:16:33,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:33,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:33,907 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:16:33,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:33,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124839299] [2024-11-10 18:16:33,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124839299] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:16:33,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093768527] [2024-11-10 18:16:33,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:16:33,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:16:33,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:16:33,912 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:16:33,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 18:16:33,986 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:16:33,986 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:16:33,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 18:16:33,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:16:34,026 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:34,026 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:16:34,071 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:16:34,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093768527] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:16:34,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:16:34,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 3] total 4 [2024-11-10 18:16:34,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698511811] [2024-11-10 18:16:34,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:16:34,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:16:34,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:34,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:16:34,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:16:34,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-10 18:16:34,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 141 transitions, 1198 flow. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:34,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:34,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-10 18:16:34,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:37,879 INFO L124 PetriNetUnfolderBase]: 19146/30272 cut-off events. [2024-11-10 18:16:37,879 INFO L125 PetriNetUnfolderBase]: For 151426/151586 co-relation queries the response was YES. [2024-11-10 18:16:38,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115018 conditions, 30272 events. 19146/30272 cut-off events. For 151426/151586 co-relation queries the response was YES. Maximal size of possible extension queue 934. Compared 215582 event pairs, 7756 based on Foata normal form. 310/27410 useless extension candidates. Maximal degree in co-relation 114977. Up to 11579 conditions per place. [2024-11-10 18:16:38,372 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 254 selfloop transitions, 37 changer transitions 1/304 dead transitions. [2024-11-10 18:16:38,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 304 transitions, 3052 flow [2024-11-10 18:16:38,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:16:38,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:16:38,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-11-10 18:16:38,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-11-10 18:16:38,375 INFO L175 Difference]: Start difference. First operand has 117 places, 141 transitions, 1198 flow. Second operand 4 states and 130 transitions. [2024-11-10 18:16:38,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 304 transitions, 3052 flow [2024-11-10 18:16:38,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 304 transitions, 2759 flow, removed 120 selfloop flow, removed 4 redundant places. [2024-11-10 18:16:38,740 INFO L231 Difference]: Finished difference. Result has 118 places, 170 transitions, 1530 flow [2024-11-10 18:16:38,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1052, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1530, PETRI_PLACES=118, PETRI_TRANSITIONS=170} [2024-11-10 18:16:38,741 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 73 predicate places. [2024-11-10 18:16:38,742 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 170 transitions, 1530 flow [2024-11-10 18:16:38,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:38,742 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:38,742 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:38,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 18:16:38,943 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,SelfDestructingSolverStorable8 [2024-11-10 18:16:38,944 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:38,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:38,944 INFO L85 PathProgramCache]: Analyzing trace with hash -2102813195, now seen corresponding path program 1 times [2024-11-10 18:16:38,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:38,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377207398] [2024-11-10 18:16:38,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:38,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:39,032 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:16:39,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:39,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377207398] [2024-11-10 18:16:39,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377207398] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:16:39,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493434047] [2024-11-10 18:16:39,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:39,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:16:39,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:16:39,036 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:16:39,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 18:16:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:39,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 18:16:39,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:16:39,158 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:16:39,159 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:16:39,199 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 18:16:39,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493434047] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:16:39,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:16:39,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 3] total 4 [2024-11-10 18:16:39,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232398251] [2024-11-10 18:16:39,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:16:39,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 18:16:39,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:39,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 18:16:39,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-10 18:16:39,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-10 18:16:39,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 170 transitions, 1530 flow. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:39,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:39,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-10 18:16:39,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:16:47,380 INFO L124 PetriNetUnfolderBase]: 40789/64691 cut-off events. [2024-11-10 18:16:47,380 INFO L125 PetriNetUnfolderBase]: For 330488/330860 co-relation queries the response was YES. [2024-11-10 18:16:48,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246102 conditions, 64691 events. 40789/64691 cut-off events. For 330488/330860 co-relation queries the response was YES. Maximal size of possible extension queue 1905. Compared 509297 event pairs, 17606 based on Foata normal form. 992/58917 useless extension candidates. Maximal degree in co-relation 246058. Up to 22416 conditions per place. [2024-11-10 18:16:48,737 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 330 selfloop transitions, 34 changer transitions 1/377 dead transitions. [2024-11-10 18:16:48,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 377 transitions, 4155 flow [2024-11-10 18:16:48,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:16:48,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:16:48,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2024-11-10 18:16:48,738 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-10 18:16:48,738 INFO L175 Difference]: Start difference. First operand has 118 places, 170 transitions, 1530 flow. Second operand 4 states and 126 transitions. [2024-11-10 18:16:48,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 377 transitions, 4155 flow [2024-11-10 18:16:49,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 377 transitions, 4029 flow, removed 63 selfloop flow, removed 0 redundant places. [2024-11-10 18:16:49,373 INFO L231 Difference]: Finished difference. Result has 123 places, 197 transitions, 1913 flow [2024-11-10 18:16:49,374 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1484, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1913, PETRI_PLACES=123, PETRI_TRANSITIONS=197} [2024-11-10 18:16:49,374 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 78 predicate places. [2024-11-10 18:16:49,374 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 197 transitions, 1913 flow [2024-11-10 18:16:49,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:49,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:16:49,375 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:16:49,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 18:16:49,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:16:49,576 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-10 18:16:49,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:16:49,577 INFO L85 PathProgramCache]: Analyzing trace with hash -354021170, now seen corresponding path program 3 times [2024-11-10 18:16:49,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:16:49,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171358735] [2024-11-10 18:16:49,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:16:49,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:16:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:16:49,841 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 25 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 18:16:49,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:16:49,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171358735] [2024-11-10 18:16:49,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171358735] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:16:49,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370132387] [2024-11-10 18:16:49,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 18:16:49,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:16:49,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:16:49,844 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:16:49,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 18:16:49,917 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-10 18:16:49,917 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:16:49,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-10 18:16:49,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:16:50,077 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-10 18:16:50,077 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:16:50,283 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-10 18:16:50,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370132387] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:16:50,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:16:50,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 16 [2024-11-10 18:16:50,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131844078] [2024-11-10 18:16:50,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:16:50,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-10 18:16:50,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:16:50,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-10 18:16:50,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-10 18:16:50,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2024-11-10 18:16:50,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 197 transitions, 1913 flow. Second operand has 17 states, 17 states have (on average 14.882352941176471) internal successors, (253), 17 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:16:50,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:16:50,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2024-11-10 18:16:50,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand