./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/popl20-bad-threaded-sum-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/popl20-bad-threaded-sum-2.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 6b30bad195dde021066febd52c7985271e0448c265b66e6efcbd9c3306420e73 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:36:40,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:36:40,626 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:36:40,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:36:40,633 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:36:40,665 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:36:40,665 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:36:40,666 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:36:40,667 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:36:40,668 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:36:40,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:36:40,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:36:40,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:36:40,671 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:36:40,672 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:36:40,672 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:36:40,672 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:36:40,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:36:40,673 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:36:40,673 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:36:40,673 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:36:40,676 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:36:40,676 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:36:40,677 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:36:40,677 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:36:40,677 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:36:40,678 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:36:40,678 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:36:40,678 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:36:40,678 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:36:40,679 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:36:40,679 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:36:40,679 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:36:40,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:36:40,680 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:36:40,680 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:36:40,680 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:36:40,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:36:40,681 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:36:40,681 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:36:40,681 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:36:40,682 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:36:40,682 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b30bad195dde021066febd52c7985271e0448c265b66e6efcbd9c3306420e73 [2024-11-17 03:36:40,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:36:40,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:36:40,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:36:40,997 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:36:40,998 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:36:40,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-bad-threaded-sum-2.wvr.c [2024-11-17 03:36:42,478 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:36:42,686 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:36:42,687 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-threaded-sum-2.wvr.c [2024-11-17 03:36:42,694 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/085b1f960/8d238c46a1824a21a58ca0806f158c11/FLAG509828663 [2024-11-17 03:36:43,061 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/085b1f960/8d238c46a1824a21a58ca0806f158c11 [2024-11-17 03:36:43,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:36:43,066 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:36:43,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:36:43,068 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:36:43,074 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:36:43,075 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:36:43" (1/1) ... [2024-11-17 03:36:43,076 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c269ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:36:43, skipping insertion in model container [2024-11-17 03:36:43,076 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:36:43" (1/1) ... [2024-11-17 03:36:43,098 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:36:43,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:36:43,357 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:36:43,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:36:43,404 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:36:43,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:36:43 WrapperNode [2024-11-17 03:36:43,406 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:36:43,408 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:36:43,408 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:36:43,408 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:36:43,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:36:43" (1/1) ... [2024-11-17 03:36:43,424 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:36:43" (1/1) ... [2024-11-17 03:36:43,441 INFO L138 Inliner]: procedures = 20, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 50 [2024-11-17 03:36:43,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:36:43,442 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:36:43,442 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:36:43,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:36:43,452 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:36:43" (1/1) ... [2024-11-17 03:36:43,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:36:43" (1/1) ... [2024-11-17 03:36:43,455 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:36:43" (1/1) ... [2024-11-17 03:36:43,469 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 03:36:43,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:36:43" (1/1) ... [2024-11-17 03:36:43,470 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:36:43" (1/1) ... [2024-11-17 03:36:43,475 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:36:43" (1/1) ... [2024-11-17 03:36:43,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:36:43" (1/1) ... [2024-11-17 03:36:43,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:36:43" (1/1) ... [2024-11-17 03:36:43,478 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:36:43" (1/1) ... [2024-11-17 03:36:43,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:36:43,480 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:36:43,480 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:36:43,481 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:36:43,481 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:36:43" (1/1) ... [2024-11-17 03:36:43,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:36:43,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:36:43,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 03:36:43,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 03:36:43,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:36:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 03:36:43,607 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 03:36:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 03:36:43,608 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 03:36:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:36:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:36:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:36:43,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:36:43,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:36:43,611 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:36:43,769 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:36:43,772 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:36:43,953 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:36:43,953 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:36:44,091 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:36:44,092 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:36:44,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:36:44 BoogieIcfgContainer [2024-11-17 03:36:44,095 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:36:44,099 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:36:44,099 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:36:44,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:36:44,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:36:43" (1/3) ... [2024-11-17 03:36:44,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638adbd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:36:44, skipping insertion in model container [2024-11-17 03:36:44,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:36:43" (2/3) ... [2024-11-17 03:36:44,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638adbd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:36:44, skipping insertion in model container [2024-11-17 03:36:44,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:36:44" (3/3) ... [2024-11-17 03:36:44,106 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-threaded-sum-2.wvr.c [2024-11-17 03:36:44,123 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:36:44,124 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 03:36:44,124 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:36:44,189 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 03:36:44,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 33 transitions, 80 flow [2024-11-17 03:36:44,266 INFO L124 PetriNetUnfolderBase]: 4/31 cut-off events. [2024-11-17 03:36:44,267 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 03:36:44,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 31 events. 4/31 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2024-11-17 03:36:44,273 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 33 transitions, 80 flow [2024-11-17 03:36:44,279 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 30 transitions, 72 flow [2024-11-17 03:36:44,294 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:36:44,303 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;@772f35cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:36:44,303 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-17 03:36:44,320 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:36:44,321 INFO L124 PetriNetUnfolderBase]: 4/27 cut-off events. [2024-11-17 03:36:44,321 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 03:36:44,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:36:44,322 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:36:44,323 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:36:44,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:36:44,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1916107952, now seen corresponding path program 1 times [2024-11-17 03:36:44,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:36:44,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718296137] [2024-11-17 03:36:44,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:44,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:36:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:44,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:44,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:36:44,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718296137] [2024-11-17 03:36:44,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718296137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:36:44,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:36:44,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:36:44,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034002194] [2024-11-17 03:36:44,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:36:44,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 03:36:44,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:36:44,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 03:36:44,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 03:36:44,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 33 [2024-11-17 03:36:44,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 72 flow. Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:44,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:36:44,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 33 [2024-11-17 03:36:44,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:36:44,687 INFO L124 PetriNetUnfolderBase]: 74/151 cut-off events. [2024-11-17 03:36:44,687 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-17 03:36:44,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 151 events. 74/151 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 585 event pairs, 53 based on Foata normal form. 22/150 useless extension candidates. Maximal degree in co-relation 260. Up to 131 conditions per place. [2024-11-17 03:36:44,692 INFO L140 encePairwiseOnDemand]: 30/33 looper letters, 17 selfloop transitions, 0 changer transitions 0/26 dead transitions. [2024-11-17 03:36:44,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 26 transitions, 98 flow [2024-11-17 03:36:44,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 03:36:44,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-17 03:36:44,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 44 transitions. [2024-11-17 03:36:44,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-17 03:36:44,712 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 72 flow. Second operand 2 states and 44 transitions. [2024-11-17 03:36:44,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 26 transitions, 98 flow [2024-11-17 03:36:44,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 26 transitions, 90 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 03:36:44,718 INFO L231 Difference]: Finished difference. Result has 28 places, 26 transitions, 56 flow [2024-11-17 03:36:44,722 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=56, PETRI_PLACES=28, PETRI_TRANSITIONS=26} [2024-11-17 03:36:44,728 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, -5 predicate places. [2024-11-17 03:36:44,729 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 26 transitions, 56 flow [2024-11-17 03:36:44,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:44,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:36:44,730 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:36:44,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:36:44,731 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:36:44,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:36:44,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1756538489, now seen corresponding path program 1 times [2024-11-17 03:36:44,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:36:44,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993794510] [2024-11-17 03:36:44,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:44,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:36:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:45,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:45,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:36:45,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993794510] [2024-11-17 03:36:45,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993794510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:36:45,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:36:45,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:36:45,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978560015] [2024-11-17 03:36:45,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:36:45,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:36:45,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:36:45,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:36:45,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:36:45,158 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-11-17 03:36:45,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 26 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:45,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:36:45,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-11-17 03:36:45,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:36:45,332 INFO L124 PetriNetUnfolderBase]: 137/291 cut-off events. [2024-11-17 03:36:45,332 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:36:45,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 539 conditions, 291 events. 137/291 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1246 event pairs, 11 based on Foata normal form. 16/299 useless extension candidates. Maximal degree in co-relation 536. Up to 163 conditions per place. [2024-11-17 03:36:45,336 INFO L140 encePairwiseOnDemand]: 27/33 looper letters, 36 selfloop transitions, 6 changer transitions 0/50 dead transitions. [2024-11-17 03:36:45,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 50 transitions, 191 flow [2024-11-17 03:36:45,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:36:45,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:36:45,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2024-11-17 03:36:45,338 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-17 03:36:45,338 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 56 flow. Second operand 5 states and 99 transitions. [2024-11-17 03:36:45,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 50 transitions, 191 flow [2024-11-17 03:36:45,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 50 transitions, 191 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:36:45,341 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 101 flow [2024-11-17 03:36:45,342 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=101, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2024-11-17 03:36:45,342 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places. [2024-11-17 03:36:45,342 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 101 flow [2024-11-17 03:36:45,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:45,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:36:45,343 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] [2024-11-17 03:36:45,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:36:45,344 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:36:45,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:36:45,345 INFO L85 PathProgramCache]: Analyzing trace with hash -555475163, now seen corresponding path program 1 times [2024-11-17 03:36:45,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:36:45,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083953657] [2024-11-17 03:36:45,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:45,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:36:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:45,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 03:36:45,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:36:45,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083953657] [2024-11-17 03:36:45,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083953657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:36:45,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:36:45,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:36:45,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606656281] [2024-11-17 03:36:45,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:36:45,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:36:45,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:36:45,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:36:45,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:36:45,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-11-17 03:36:45,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 101 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2024-11-17 03:36:45,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:36:45,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-11-17 03:36:45,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:36:45,703 INFO L124 PetriNetUnfolderBase]: 169/367 cut-off events. [2024-11-17 03:36:45,705 INFO L125 PetriNetUnfolderBase]: For 193/201 co-relation queries the response was YES. [2024-11-17 03:36:45,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 866 conditions, 367 events. 169/367 cut-off events. For 193/201 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1751 event pairs, 17 based on Foata normal form. 13/371 useless extension candidates. Maximal degree in co-relation 859. Up to 178 conditions per place. [2024-11-17 03:36:45,712 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 37 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2024-11-17 03:36:45,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 48 transitions, 245 flow [2024-11-17 03:36:45,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:36:45,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:36:45,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2024-11-17 03:36:45,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-17 03:36:45,716 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 101 flow. Second operand 4 states and 77 transitions. [2024-11-17 03:36:45,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 48 transitions, 245 flow [2024-11-17 03:36:45,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:36:45,722 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 112 flow [2024-11-17 03:36:45,722 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2024-11-17 03:36:45,723 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2024-11-17 03:36:45,724 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 112 flow [2024-11-17 03:36:45,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2024-11-17 03:36:45,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:36:45,725 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] [2024-11-17 03:36:45,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:36:45,725 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:36:45,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:36:45,727 INFO L85 PathProgramCache]: Analyzing trace with hash -359103462, now seen corresponding path program 1 times [2024-11-17 03:36:45,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:36:45,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310462064] [2024-11-17 03:36:45,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:45,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:36:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:45,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:36:45,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310462064] [2024-11-17 03:36:45,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310462064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:36:45,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:36:45,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:36:45,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283132403] [2024-11-17 03:36:45,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:36:45,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:36:45,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:36:45,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:36:45,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:36:45,937 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-11-17 03:36:45,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:45,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:36:45,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-11-17 03:36:45,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:36:46,080 INFO L124 PetriNetUnfolderBase]: 168/366 cut-off events. [2024-11-17 03:36:46,080 INFO L125 PetriNetUnfolderBase]: For 269/279 co-relation queries the response was YES. [2024-11-17 03:36:46,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 908 conditions, 366 events. 168/366 cut-off events. For 269/279 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1693 event pairs, 29 based on Foata normal form. 20/380 useless extension candidates. Maximal degree in co-relation 900. Up to 129 conditions per place. [2024-11-17 03:36:46,085 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 35 selfloop transitions, 7 changer transitions 0/50 dead transitions. [2024-11-17 03:36:46,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 50 transitions, 261 flow [2024-11-17 03:36:46,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:36:46,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:36:46,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 94 transitions. [2024-11-17 03:36:46,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5696969696969697 [2024-11-17 03:36:46,087 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 112 flow. Second operand 5 states and 94 transitions. [2024-11-17 03:36:46,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 50 transitions, 261 flow [2024-11-17 03:36:46,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 50 transitions, 255 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:36:46,094 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 158 flow [2024-11-17 03:36:46,094 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=158, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2024-11-17 03:36:46,095 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 10 predicate places. [2024-11-17 03:36:46,095 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 158 flow [2024-11-17 03:36:46,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:46,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:36:46,096 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] [2024-11-17 03:36:46,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:36:46,096 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:36:46,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:36:46,099 INFO L85 PathProgramCache]: Analyzing trace with hash -999209320, now seen corresponding path program 2 times [2024-11-17 03:36:46,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:36:46,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686767069] [2024-11-17 03:36:46,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:46,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:36:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:46,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:46,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:36:46,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686767069] [2024-11-17 03:36:46,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686767069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:36:46,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836104213] [2024-11-17 03:36:46,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 03:36:46,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:36:46,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:36:46,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:36:46,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 03:36:46,789 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 03:36:46,789 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:36:46,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-17 03:36:46,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:36:47,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:47,257 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:36:47,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:47,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836104213] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:36:47,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:36:47,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2024-11-17 03:36:47,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20044146] [2024-11-17 03:36:47,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:36:47,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-17 03:36:47,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:36:47,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-17 03:36:47,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-17 03:36:47,689 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-17 03:36:47,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 158 flow. Second operand has 17 states, 17 states have (on average 12.823529411764707) internal successors, (218), 17 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:47,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:36:47,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-17 03:36:47,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:36:49,467 INFO L124 PetriNetUnfolderBase]: 874/1780 cut-off events. [2024-11-17 03:36:49,468 INFO L125 PetriNetUnfolderBase]: For 1697/1723 co-relation queries the response was YES. [2024-11-17 03:36:49,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4673 conditions, 1780 events. 874/1780 cut-off events. For 1697/1723 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 11187 event pairs, 20 based on Foata normal form. 7/1781 useless extension candidates. Maximal degree in co-relation 4662. Up to 355 conditions per place. [2024-11-17 03:36:49,482 INFO L140 encePairwiseOnDemand]: 24/33 looper letters, 130 selfloop transitions, 61 changer transitions 31/229 dead transitions. [2024-11-17 03:36:49,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 229 transitions, 1348 flow [2024-11-17 03:36:49,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-17 03:36:49,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-11-17 03:36:49,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 499 transitions. [2024-11-17 03:36:49,486 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5214211076280042 [2024-11-17 03:36:49,486 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 158 flow. Second operand 29 states and 499 transitions. [2024-11-17 03:36:49,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 229 transitions, 1348 flow [2024-11-17 03:36:49,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 229 transitions, 1336 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:36:49,498 INFO L231 Difference]: Finished difference. Result has 88 places, 94 transitions, 728 flow [2024-11-17 03:36:49,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=728, PETRI_PLACES=88, PETRI_TRANSITIONS=94} [2024-11-17 03:36:49,500 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 55 predicate places. [2024-11-17 03:36:49,500 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 94 transitions, 728 flow [2024-11-17 03:36:49,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 12.823529411764707) internal successors, (218), 17 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:49,500 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:36:49,500 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:36:49,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-17 03:36:49,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:36:49,706 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:36:49,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:36:49,710 INFO L85 PathProgramCache]: Analyzing trace with hash 780241041, now seen corresponding path program 3 times [2024-11-17 03:36:49,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:36:49,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709937565] [2024-11-17 03:36:49,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:49,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:36:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:49,975 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:49,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:36:49,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709937565] [2024-11-17 03:36:49,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709937565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:36:49,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:36:49,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:36:49,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870178310] [2024-11-17 03:36:49,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:36:49,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:36:49,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:36:49,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:36:49,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:36:49,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-17 03:36:49,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 94 transitions, 728 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:49,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:36:49,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-17 03:36:49,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:36:50,374 INFO L124 PetriNetUnfolderBase]: 923/1889 cut-off events. [2024-11-17 03:36:50,375 INFO L125 PetriNetUnfolderBase]: For 9364/9530 co-relation queries the response was YES. [2024-11-17 03:36:50,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6822 conditions, 1889 events. 923/1889 cut-off events. For 9364/9530 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 11489 event pairs, 5 based on Foata normal form. 28/1916 useless extension candidates. Maximal degree in co-relation 6794. Up to 440 conditions per place. [2024-11-17 03:36:50,395 INFO L140 encePairwiseOnDemand]: 25/33 looper letters, 137 selfloop transitions, 60 changer transitions 0/209 dead transitions. [2024-11-17 03:36:50,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 209 transitions, 2055 flow [2024-11-17 03:36:50,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 03:36:50,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-17 03:36:50,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 150 transitions. [2024-11-17 03:36:50,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5050505050505051 [2024-11-17 03:36:50,397 INFO L175 Difference]: Start difference. First operand has 88 places, 94 transitions, 728 flow. Second operand 9 states and 150 transitions. [2024-11-17 03:36:50,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 209 transitions, 2055 flow [2024-11-17 03:36:50,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 209 transitions, 1791 flow, removed 125 selfloop flow, removed 6 redundant places. [2024-11-17 03:36:50,425 INFO L231 Difference]: Finished difference. Result has 92 places, 131 transitions, 1179 flow [2024-11-17 03:36:50,426 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1179, PETRI_PLACES=92, PETRI_TRANSITIONS=131} [2024-11-17 03:36:50,427 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 59 predicate places. [2024-11-17 03:36:50,427 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 131 transitions, 1179 flow [2024-11-17 03:36:50,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:50,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:36:50,427 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:36:50,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:36:50,428 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:36:50,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:36:50,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1264631396, now seen corresponding path program 1 times [2024-11-17 03:36:50,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:36:50,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517533562] [2024-11-17 03:36:50,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:50,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:36:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:51,167 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:51,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:36:51,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517533562] [2024-11-17 03:36:51,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517533562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:36:51,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235407381] [2024-11-17 03:36:51,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:36:51,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:36:51,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:36:51,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:36:51,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 03:36:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:36:51,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-17 03:36:51,264 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:36:51,952 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:51,952 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:36:52,935 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:36:52,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235407381] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:36:52,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:36:52,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 23 [2024-11-17 03:36:52,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889051426] [2024-11-17 03:36:52,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:36:52,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-17 03:36:52,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:36:52,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-17 03:36:52,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2024-11-17 03:36:52,945 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-17 03:36:52,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 131 transitions, 1179 flow. Second operand has 24 states, 24 states have (on average 12.5) internal successors, (300), 24 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:36:52,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:36:52,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-17 03:36:52,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:07,514 WARN L286 SmtUtils]: Spent 8.71s on a formula simplification. DAG size of input: 49 DAG size of output: 47 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-17 03:37:11,162 INFO L124 PetriNetUnfolderBase]: 2530/5218 cut-off events. [2024-11-17 03:37:11,162 INFO L125 PetriNetUnfolderBase]: For 30224/30434 co-relation queries the response was YES. [2024-11-17 03:37:11,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20846 conditions, 5218 events. 2530/5218 cut-off events. For 30224/30434 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 39602 event pairs, 72 based on Foata normal form. 125/5317 useless extension candidates. Maximal degree in co-relation 20815. Up to 1143 conditions per place. [2024-11-17 03:37:11,216 INFO L140 encePairwiseOnDemand]: 24/33 looper letters, 309 selfloop transitions, 217 changer transitions 80/615 dead transitions. [2024-11-17 03:37:11,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 615 transitions, 6144 flow [2024-11-17 03:37:11,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-17 03:37:11,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2024-11-17 03:37:11,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 958 transitions. [2024-11-17 03:37:11,222 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49203903441191577 [2024-11-17 03:37:11,222 INFO L175 Difference]: Start difference. First operand has 92 places, 131 transitions, 1179 flow. Second operand 59 states and 958 transitions. [2024-11-17 03:37:11,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 615 transitions, 6144 flow [2024-11-17 03:37:11,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 615 transitions, 6124 flow, removed 10 selfloop flow, removed 0 redundant places. [2024-11-17 03:37:11,308 INFO L231 Difference]: Finished difference. Result has 174 places, 337 transitions, 4209 flow [2024-11-17 03:37:11,309 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=1175, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=4209, PETRI_PLACES=174, PETRI_TRANSITIONS=337} [2024-11-17 03:37:11,313 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 141 predicate places. [2024-11-17 03:37:11,313 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 337 transitions, 4209 flow [2024-11-17 03:37:11,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 12.5) internal successors, (300), 24 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:37:11,313 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:37:11,314 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:37:11,330 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 03:37:11,514 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,SelfDestructingSolverStorable6 [2024-11-17 03:37:11,515 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:37:11,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:37:11,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1915589278, now seen corresponding path program 2 times [2024-11-17 03:37:11,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:37:11,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018473579] [2024-11-17 03:37:11,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:37:11,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:37:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:37:12,409 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:12,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:37:12,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018473579] [2024-11-17 03:37:12,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018473579] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:37:12,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554279135] [2024-11-17 03:37:12,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 03:37:12,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:37:12,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:37:12,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:37:12,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 03:37:12,484 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 03:37:12,485 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:37:12,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-17 03:37:12,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:37:29,203 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:29,203 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:37:30,483 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:37:30,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554279135] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:37:30,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:37:30,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-11-17 03:37:30,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443000469] [2024-11-17 03:37:30,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:37:30,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-17 03:37:30,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:37:30,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-17 03:37:30,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=515, Unknown=4, NotChecked=0, Total=650 [2024-11-17 03:37:30,495 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-17 03:37:30,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 337 transitions, 4209 flow. Second operand has 26 states, 26 states have (on average 12.538461538461538) internal successors, (326), 26 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:37:30,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:37:30,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-17 03:37:30,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:37:42,698 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification. DAG size of input: 49 DAG size of output: 34 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-17 03:37:50,922 WARN L286 SmtUtils]: Spent 8.05s on a formula simplification. DAG size of input: 52 DAG size of output: 35 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-17 03:37:56,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-17 03:38:00,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-17 03:38:06,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-17 03:38:10,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []