./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/bench-exp2x6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc 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/bench-exp2x6.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 1f93f8af6c620ba8dc44e82cf4c30bbca874545f3e3802e43ba4e1345a3afed4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:43:27,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:43:27,793 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:43:27,799 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:43:27,799 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:43:27,833 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:43:27,834 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:43:27,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:43:27,835 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:43:27,836 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:43:27,837 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:43:27,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:43:27,838 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:43:27,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:43:27,840 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:43:27,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:43:27,841 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:43:27,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:43:27,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:43:27,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:43:27,842 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:43:27,846 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:43:27,847 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:43:27,847 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:43:27,847 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:43:27,847 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:43:27,848 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:43:27,848 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:43:27,848 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:43:27,849 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:43:27,849 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:43:27,849 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:43:27,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:43:27,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:43:27,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:43:27,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:43:27,851 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:43:27,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:43:27,852 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:43:27,852 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:43:27,852 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:43:27,853 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:43:27,853 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f93f8af6c620ba8dc44e82cf4c30bbca874545f3e3802e43ba4e1345a3afed4 [2024-11-19 09:43:28,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:43:28,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:43:28,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:43:28,152 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:43:28,152 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:43:28,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/bench-exp2x6.wvr.c [2024-11-19 09:43:29,646 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:43:29,833 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:43:29,834 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp2x6.wvr.c [2024-11-19 09:43:29,841 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c9074f7/64bf1b28de8445dcbd18af908e9224e3/FLAG9f516456d [2024-11-19 09:43:29,854 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c9074f7/64bf1b28de8445dcbd18af908e9224e3 [2024-11-19 09:43:29,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:43:29,858 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:43:29,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:43:29,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:43:29,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:43:29,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:43:29" (1/1) ... [2024-11-19 09:43:29,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@391fb5d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:29, skipping insertion in model container [2024-11-19 09:43:29,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:43:29" (1/1) ... [2024-11-19 09:43:29,890 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:43:30,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:43:30,104 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:43:30,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:43:30,147 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:43:30,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:30 WrapperNode [2024-11-19 09:43:30,148 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:43:30,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:43:30,166 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:43:30,170 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:43:30,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:30" (1/1) ... [2024-11-19 09:43:30,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:30" (1/1) ... [2024-11-19 09:43:30,230 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-11-19 09:43:30,231 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:43:30,232 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:43:30,232 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:43:30,232 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:43:30,240 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:30" (1/1) ... [2024-11-19 09:43:30,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:30" (1/1) ... [2024-11-19 09:43:30,243 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:30" (1/1) ... [2024-11-19 09:43:30,256 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]. [2024-11-19 09:43:30,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:30" (1/1) ... [2024-11-19 09:43:30,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:30" (1/1) ... [2024-11-19 09:43:30,260 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:30" (1/1) ... [2024-11-19 09:43:30,264 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:30" (1/1) ... [2024-11-19 09:43:30,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:30" (1/1) ... [2024-11-19 09:43:30,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:30" (1/1) ... [2024-11-19 09:43:30,270 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:43:30,271 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:43:30,271 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:43:30,271 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:43:30,272 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:30" (1/1) ... [2024-11-19 09:43:30,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:43:30,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:43:30,310 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) [2024-11-19 09:43:30,313 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 [2024-11-19 09:43:30,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:43:30,365 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 09:43:30,365 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 09:43:30,365 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 09:43:30,365 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 09:43:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 09:43:30,366 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 09:43:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-19 09:43:30,366 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-19 09:43:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:43:30,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:43:30,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:43:30,368 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 09:43:30,481 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:43:30,483 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:43:30,728 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:43:30,728 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:43:30,899 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:43:30,903 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-19 09:43:30,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:43:30 BoogieIcfgContainer [2024-11-19 09:43:30,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:43:30,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:43:30,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:43:30,911 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:43:30,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:43:29" (1/3) ... [2024-11-19 09:43:30,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6264fa38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:43:30, skipping insertion in model container [2024-11-19 09:43:30,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:30" (2/3) ... [2024-11-19 09:43:30,913 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6264fa38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:43:30, skipping insertion in model container [2024-11-19 09:43:30,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:43:30" (3/3) ... [2024-11-19 09:43:30,915 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x6.wvr.c [2024-11-19 09:43:30,932 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:43:30,933 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 09:43:30,933 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:43:30,988 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-19 09:43:31,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 34 transitions, 96 flow [2024-11-19 09:43:31,052 INFO L124 PetriNetUnfolderBase]: 4/30 cut-off events. [2024-11-19 09:43:31,052 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 09:43:31,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 30 events. 4/30 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-11-19 09:43:31,058 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 34 transitions, 96 flow [2024-11-19 09:43:31,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 29 transitions, 82 flow [2024-11-19 09:43:31,076 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:43:31,085 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;@4d04e3df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:43:31,085 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-19 09:43:31,097 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:43:31,098 INFO L124 PetriNetUnfolderBase]: 4/26 cut-off events. [2024-11-19 09:43:31,098 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 09:43:31,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:31,099 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] [2024-11-19 09:43:31,099 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:43:31,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:31,105 INFO L85 PathProgramCache]: Analyzing trace with hash -257939757, now seen corresponding path program 1 times [2024-11-19 09:43:31,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:31,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802245003] [2024-11-19 09:43:31,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:43:31,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:43:31,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:43:31,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:31,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802245003] [2024-11-19 09:43:31,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802245003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:31,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:31,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:43:31,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180980811] [2024-11-19 09:43:31,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:31,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:43:31,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:31,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:43:31,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:43:31,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:31,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-19 09:43:31,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:31,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:31,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:31,954 INFO L124 PetriNetUnfolderBase]: 1367/1732 cut-off events. [2024-11-19 09:43:31,955 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-19 09:43:31,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3611 conditions, 1732 events. 1367/1732 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5593 event pairs, 123 based on Foata normal form. 2/999 useless extension candidates. Maximal degree in co-relation 3091. Up to 1541 conditions per place. [2024-11-19 09:43:31,977 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 35 selfloop transitions, 5 changer transitions 1/46 dead transitions. [2024-11-19 09:43:31,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 46 transitions, 219 flow [2024-11-19 09:43:31,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:43:31,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:43:31,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-19 09:43:31,992 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7156862745098039 [2024-11-19 09:43:31,993 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 82 flow. Second operand 3 states and 73 transitions. [2024-11-19 09:43:31,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 46 transitions, 219 flow [2024-11-19 09:43:31,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 46 transitions, 189 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-19 09:43:32,000 INFO L231 Difference]: Finished difference. Result has 31 places, 31 transitions, 95 flow [2024-11-19 09:43:32,002 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=31, PETRI_TRANSITIONS=31} [2024-11-19 09:43:32,005 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -7 predicate places. [2024-11-19 09:43:32,008 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 31 transitions, 95 flow [2024-11-19 09:43:32,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2024-11-19 09:43:32,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:32,008 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:43:32,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:43:32,009 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:43:32,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:32,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1421632519, now seen corresponding path program 1 times [2024-11-19 09:43:32,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:32,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842020808] [2024-11-19 09:43:32,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:43:32,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:43:32,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:43:32,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:32,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842020808] [2024-11-19 09:43:32,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842020808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:32,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:32,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:32,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424528965] [2024-11-19 09:43:32,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:32,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:32,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:32,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:32,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:32,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:32,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 31 transitions, 95 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) [2024-11-19 09:43:32,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:32,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:32,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:32,521 INFO L124 PetriNetUnfolderBase]: 1593/2038 cut-off events. [2024-11-19 09:43:32,522 INFO L125 PetriNetUnfolderBase]: For 483/483 co-relation queries the response was YES. [2024-11-19 09:43:32,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5072 conditions, 2038 events. 1593/2038 cut-off events. For 483/483 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 7039 event pairs, 113 based on Foata normal form. 34/2068 useless extension candidates. Maximal degree in co-relation 1272. Up to 842 conditions per place. [2024-11-19 09:43:32,539 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 66 selfloop transitions, 10 changer transitions 0/81 dead transitions. [2024-11-19 09:43:32,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 81 transitions, 391 flow [2024-11-19 09:43:32,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:32,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:32,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2024-11-19 09:43:32,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7058823529411765 [2024-11-19 09:43:32,543 INFO L175 Difference]: Start difference. First operand has 31 places, 31 transitions, 95 flow. Second operand 5 states and 120 transitions. [2024-11-19 09:43:32,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 81 transitions, 391 flow [2024-11-19 09:43:32,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 81 transitions, 383 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:43:32,547 INFO L231 Difference]: Finished difference. Result has 36 places, 38 transitions, 155 flow [2024-11-19 09:43:32,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=155, PETRI_PLACES=36, PETRI_TRANSITIONS=38} [2024-11-19 09:43:32,548 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2024-11-19 09:43:32,551 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 38 transitions, 155 flow [2024-11-19 09:43:32,551 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) [2024-11-19 09:43:32,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:32,551 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:43:32,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:43:32,552 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:43:32,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:32,554 INFO L85 PathProgramCache]: Analyzing trace with hash -471259311, now seen corresponding path program 1 times [2024-11-19 09:43:32,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:32,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259946286] [2024-11-19 09:43:32,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:43:32,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:43:32,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:43:32,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:32,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259946286] [2024-11-19 09:43:32,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259946286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:32,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:32,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:32,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998854714] [2024-11-19 09:43:32,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:32,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:32,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:32,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:32,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:32,694 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:32,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 38 transitions, 155 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) [2024-11-19 09:43:32,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:32,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:32,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:33,019 INFO L124 PetriNetUnfolderBase]: 1921/2549 cut-off events. [2024-11-19 09:43:33,019 INFO L125 PetriNetUnfolderBase]: For 3334/3334 co-relation queries the response was YES. [2024-11-19 09:43:33,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7920 conditions, 2549 events. 1921/2549 cut-off events. For 3334/3334 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 10095 event pairs, 288 based on Foata normal form. 64/2589 useless extension candidates. Maximal degree in co-relation 3126. Up to 1063 conditions per place. [2024-11-19 09:43:33,040 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 79 selfloop transitions, 8 changer transitions 0/92 dead transitions. [2024-11-19 09:43:33,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 92 transitions, 571 flow [2024-11-19 09:43:33,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:33,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:33,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 113 transitions. [2024-11-19 09:43:33,043 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6647058823529411 [2024-11-19 09:43:33,043 INFO L175 Difference]: Start difference. First operand has 36 places, 38 transitions, 155 flow. Second operand 5 states and 113 transitions. [2024-11-19 09:43:33,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 92 transitions, 571 flow [2024-11-19 09:43:33,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 92 transitions, 571 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 09:43:33,047 INFO L231 Difference]: Finished difference. Result has 43 places, 43 transitions, 210 flow [2024-11-19 09:43:33,047 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=210, PETRI_PLACES=43, PETRI_TRANSITIONS=43} [2024-11-19 09:43:33,048 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2024-11-19 09:43:33,048 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 43 transitions, 210 flow [2024-11-19 09:43:33,049 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) [2024-11-19 09:43:33,049 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:33,049 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:43:33,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:43:33,049 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:43:33,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:33,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1412982213, now seen corresponding path program 2 times [2024-11-19 09:43:33,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:33,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280099364] [2024-11-19 09:43:33,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:43:33,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:33,068 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:43:33,069 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:43:33,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:43:33,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:33,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280099364] [2024-11-19 09:43:33,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280099364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:33,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:33,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:33,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975942888] [2024-11-19 09:43:33,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:33,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:33,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:33,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:33,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:33,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:33,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 43 transitions, 210 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) [2024-11-19 09:43:33,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:33,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:33,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:33,490 INFO L124 PetriNetUnfolderBase]: 1835/2445 cut-off events. [2024-11-19 09:43:33,490 INFO L125 PetriNetUnfolderBase]: For 4078/4078 co-relation queries the response was YES. [2024-11-19 09:43:33,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9087 conditions, 2445 events. 1835/2445 cut-off events. For 4078/4078 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 9956 event pairs, 348 based on Foata normal form. 90/2527 useless extension candidates. Maximal degree in co-relation 4692. Up to 1412 conditions per place. [2024-11-19 09:43:33,511 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 83 selfloop transitions, 10 changer transitions 0/98 dead transitions. [2024-11-19 09:43:33,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 98 transitions, 649 flow [2024-11-19 09:43:33,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:33,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:33,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2024-11-19 09:43:33,513 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-19 09:43:33,514 INFO L175 Difference]: Start difference. First operand has 43 places, 43 transitions, 210 flow. Second operand 5 states and 119 transitions. [2024-11-19 09:43:33,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 98 transitions, 649 flow [2024-11-19 09:43:33,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 98 transitions, 649 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 09:43:33,527 INFO L231 Difference]: Finished difference. Result has 49 places, 46 transitions, 264 flow [2024-11-19 09:43:33,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=264, PETRI_PLACES=49, PETRI_TRANSITIONS=46} [2024-11-19 09:43:33,529 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 11 predicate places. [2024-11-19 09:43:33,529 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 46 transitions, 264 flow [2024-11-19 09:43:33,530 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) [2024-11-19 09:43:33,530 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:33,530 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:43:33,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 09:43:33,530 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:43:33,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:33,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1456669032, now seen corresponding path program 1 times [2024-11-19 09:43:33,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:33,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417920049] [2024-11-19 09:43:33,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:43:33,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:43:33,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:43:33,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:33,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417920049] [2024-11-19 09:43:33,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417920049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:33,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:33,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:33,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953805463] [2024-11-19 09:43:33,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:33,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:33,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:33,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:33,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:33,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:33,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 46 transitions, 264 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) [2024-11-19 09:43:33,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:33,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:33,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:33,944 INFO L124 PetriNetUnfolderBase]: 1783/2380 cut-off events. [2024-11-19 09:43:33,944 INFO L125 PetriNetUnfolderBase]: For 6417/6417 co-relation queries the response was YES. [2024-11-19 09:43:33,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9796 conditions, 2380 events. 1783/2380 cut-off events. For 6417/6417 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 9730 event pairs, 131 based on Foata normal form. 52/2430 useless extension candidates. Maximal degree in co-relation 5285. Up to 1057 conditions per place. [2024-11-19 09:43:33,965 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 84 selfloop transitions, 8 changer transitions 0/97 dead transitions. [2024-11-19 09:43:33,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 97 transitions, 673 flow [2024-11-19 09:43:33,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:33,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:33,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 118 transitions. [2024-11-19 09:43:33,968 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6941176470588235 [2024-11-19 09:43:33,968 INFO L175 Difference]: Start difference. First operand has 49 places, 46 transitions, 264 flow. Second operand 5 states and 118 transitions. [2024-11-19 09:43:33,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 97 transitions, 673 flow [2024-11-19 09:43:33,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 97 transitions, 664 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-19 09:43:33,982 INFO L231 Difference]: Finished difference. Result has 53 places, 45 transitions, 269 flow [2024-11-19 09:43:33,982 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=269, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2024-11-19 09:43:33,983 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2024-11-19 09:43:33,984 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 269 flow [2024-11-19 09:43:33,985 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) [2024-11-19 09:43:33,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:33,985 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:43:33,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 09:43:33,985 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:43:33,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:33,986 INFO L85 PathProgramCache]: Analyzing trace with hash 708257647, now seen corresponding path program 2 times [2024-11-19 09:43:33,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:33,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967796563] [2024-11-19 09:43:33,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:43:33,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:34,001 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:43:34,001 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:43:34,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:43:34,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:34,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967796563] [2024-11-19 09:43:34,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967796563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:34,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:34,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:34,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718495645] [2024-11-19 09:43:34,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:34,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:34,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:34,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:34,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:34,066 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:34,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 269 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) [2024-11-19 09:43:34,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:34,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:34,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:34,310 INFO L124 PetriNetUnfolderBase]: 1610/2155 cut-off events. [2024-11-19 09:43:34,310 INFO L125 PetriNetUnfolderBase]: For 6953/6957 co-relation queries the response was YES. [2024-11-19 09:43:34,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9113 conditions, 2155 events. 1610/2155 cut-off events. For 6953/6957 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 8238 event pairs, 91 based on Foata normal form. 32/2167 useless extension candidates. Maximal degree in co-relation 5267. Up to 897 conditions per place. [2024-11-19 09:43:34,350 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 92 selfloop transitions, 11 changer transitions 0/108 dead transitions. [2024-11-19 09:43:34,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 108 transitions, 889 flow [2024-11-19 09:43:34,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:34,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:34,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions. [2024-11-19 09:43:34,352 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6588235294117647 [2024-11-19 09:43:34,352 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 269 flow. Second operand 5 states and 112 transitions. [2024-11-19 09:43:34,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 108 transitions, 889 flow [2024-11-19 09:43:34,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 108 transitions, 864 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-11-19 09:43:34,363 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 321 flow [2024-11-19 09:43:34,363 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=321, PETRI_PLACES=57, PETRI_TRANSITIONS=50} [2024-11-19 09:43:34,364 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2024-11-19 09:43:34,364 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 321 flow [2024-11-19 09:43:34,365 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) [2024-11-19 09:43:34,365 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:34,365 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:43:34,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 09:43:34,365 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:43:34,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:34,366 INFO L85 PathProgramCache]: Analyzing trace with hash -719879476, now seen corresponding path program 1 times [2024-11-19 09:43:34,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:34,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221393672] [2024-11-19 09:43:34,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:43:34,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:43:34,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:43:34,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:34,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221393672] [2024-11-19 09:43:34,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221393672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:34,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:34,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:34,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340868382] [2024-11-19 09:43:34,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:34,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:34,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:34,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:34,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:34,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:34,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 50 transitions, 321 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) [2024-11-19 09:43:34,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:34,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:34,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:34,748 INFO L124 PetriNetUnfolderBase]: 1577/2122 cut-off events. [2024-11-19 09:43:34,748 INFO L125 PetriNetUnfolderBase]: For 7117/7121 co-relation queries the response was YES. [2024-11-19 09:43:34,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9586 conditions, 2122 events. 1577/2122 cut-off events. For 7117/7121 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 8186 event pairs, 71 based on Foata normal form. 34/2136 useless extension candidates. Maximal degree in co-relation 6031. Up to 983 conditions per place. [2024-11-19 09:43:34,771 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 88 selfloop transitions, 8 changer transitions 4/105 dead transitions. [2024-11-19 09:43:34,771 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 105 transitions, 873 flow [2024-11-19 09:43:34,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:34,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:34,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2024-11-19 09:43:34,773 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6470588235294118 [2024-11-19 09:43:34,773 INFO L175 Difference]: Start difference. First operand has 57 places, 50 transitions, 321 flow. Second operand 5 states and 110 transitions. [2024-11-19 09:43:34,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 105 transitions, 873 flow [2024-11-19 09:43:34,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 105 transitions, 862 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-19 09:43:34,785 INFO L231 Difference]: Finished difference. Result has 61 places, 49 transitions, 324 flow [2024-11-19 09:43:34,785 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=324, PETRI_PLACES=61, PETRI_TRANSITIONS=49} [2024-11-19 09:43:34,785 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 23 predicate places. [2024-11-19 09:43:34,785 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 324 flow [2024-11-19 09:43:34,786 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) [2024-11-19 09:43:34,786 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:34,786 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:43:34,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 09:43:34,786 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:43:34,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:34,787 INFO L85 PathProgramCache]: Analyzing trace with hash -562335150, now seen corresponding path program 2 times [2024-11-19 09:43:34,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:34,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090032656] [2024-11-19 09:43:34,787 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:43:34,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:34,804 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:43:34,804 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:43:34,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:43:34,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:34,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090032656] [2024-11-19 09:43:34,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090032656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:34,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:34,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:34,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988588142] [2024-11-19 09:43:34,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:34,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:34,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:34,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:34,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:34,871 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:34,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 324 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) [2024-11-19 09:43:34,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:34,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:34,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:35,130 INFO L124 PetriNetUnfolderBase]: 1515/2072 cut-off events. [2024-11-19 09:43:35,131 INFO L125 PetriNetUnfolderBase]: For 7430/7434 co-relation queries the response was YES. [2024-11-19 09:43:35,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9630 conditions, 2072 events. 1515/2072 cut-off events. For 7430/7434 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 8412 event pairs, 258 based on Foata normal form. 63/2115 useless extension candidates. Maximal degree in co-relation 6059. Up to 1124 conditions per place. [2024-11-19 09:43:35,147 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 91 selfloop transitions, 8 changer transitions 0/104 dead transitions. [2024-11-19 09:43:35,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 104 transitions, 893 flow [2024-11-19 09:43:35,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:35,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:35,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2024-11-19 09:43:35,148 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6352941176470588 [2024-11-19 09:43:35,148 INFO L175 Difference]: Start difference. First operand has 61 places, 49 transitions, 324 flow. Second operand 5 states and 108 transitions. [2024-11-19 09:43:35,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 104 transitions, 893 flow [2024-11-19 09:43:35,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 104 transitions, 880 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-19 09:43:35,155 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 364 flow [2024-11-19 09:43:35,156 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=364, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2024-11-19 09:43:35,156 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 28 predicate places. [2024-11-19 09:43:35,156 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 364 flow [2024-11-19 09:43:35,157 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) [2024-11-19 09:43:35,157 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:35,157 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 09:43:35,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 09:43:35,158 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:43:35,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:35,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1948816492, now seen corresponding path program 2 times [2024-11-19 09:43:35,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:35,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451254344] [2024-11-19 09:43:35,159 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:43:35,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:35,169 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:43:35,170 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:43:35,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:43:35,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:35,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451254344] [2024-11-19 09:43:35,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451254344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:35,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:35,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:35,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329262156] [2024-11-19 09:43:35,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:35,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:35,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:35,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:35,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:35,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:35,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 364 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) [2024-11-19 09:43:35,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:35,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:35,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:35,478 INFO L124 PetriNetUnfolderBase]: 1447/1987 cut-off events. [2024-11-19 09:43:35,479 INFO L125 PetriNetUnfolderBase]: For 7054/7054 co-relation queries the response was YES. [2024-11-19 09:43:35,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9793 conditions, 1987 events. 1447/1987 cut-off events. For 7054/7054 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 8176 event pairs, 375 based on Foata normal form. 68/2047 useless extension candidates. Maximal degree in co-relation 8664. Up to 1150 conditions per place. [2024-11-19 09:43:35,495 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 111 selfloop transitions, 8 changer transitions 0/124 dead transitions. [2024-11-19 09:43:35,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 124 transitions, 1094 flow [2024-11-19 09:43:35,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:35,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:35,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2024-11-19 09:43:35,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6823529411764706 [2024-11-19 09:43:35,496 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 364 flow. Second operand 5 states and 116 transitions. [2024-11-19 09:43:35,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 124 transitions, 1094 flow [2024-11-19 09:43:35,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 124 transitions, 1036 flow, removed 20 selfloop flow, removed 2 redundant places. [2024-11-19 09:43:35,506 INFO L231 Difference]: Finished difference. Result has 70 places, 55 transitions, 401 flow [2024-11-19 09:43:35,506 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=401, PETRI_PLACES=70, PETRI_TRANSITIONS=55} [2024-11-19 09:43:35,507 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 32 predicate places. [2024-11-19 09:43:35,507 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 55 transitions, 401 flow [2024-11-19 09:43:35,507 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) [2024-11-19 09:43:35,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:35,507 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] [2024-11-19 09:43:35,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 09:43:35,508 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:43:35,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:35,508 INFO L85 PathProgramCache]: Analyzing trace with hash -716440764, now seen corresponding path program 1 times [2024-11-19 09:43:35,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:35,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342923319] [2024-11-19 09:43:35,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:43:35,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:43:35,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:43:35,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:35,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342923319] [2024-11-19 09:43:35,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342923319] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:43:35,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60476855] [2024-11-19 09:43:35,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:43:35,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:43:35,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:43:35,967 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) [2024-11-19 09:43:35,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 09:43:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:43:36,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 09:43:36,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:43:38,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:43:38,738 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:43:39,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:43:39,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60476855] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:43:39,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:43:39,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2024-11-19 09:43:39,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553815426] [2024-11-19 09:43:39,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:43:39,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 09:43:39,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:39,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 09:43:39,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-19 09:43:39,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:39,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 55 transitions, 401 flow. Second operand has 14 states, 14 states have (on average 14.0) internal successors, (196), 14 states have internal predecessors, (196), 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) [2024-11-19 09:43:39,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:39,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:39,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:45,366 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 [] [2024-11-19 09:43:46,883 INFO L124 PetriNetUnfolderBase]: 2032/2799 cut-off events. [2024-11-19 09:43:46,883 INFO L125 PetriNetUnfolderBase]: For 10221/10221 co-relation queries the response was YES. [2024-11-19 09:43:46,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13891 conditions, 2799 events. 2032/2799 cut-off events. For 10221/10221 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 12212 event pairs, 277 based on Foata normal form. 2/2793 useless extension candidates. Maximal degree in co-relation 12592. Up to 1959 conditions per place. [2024-11-19 09:43:46,912 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 124 selfloop transitions, 31 changer transitions 4/164 dead transitions. [2024-11-19 09:43:46,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 164 transitions, 1372 flow [2024-11-19 09:43:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 09:43:46,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 09:43:46,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 208 transitions. [2024-11-19 09:43:46,914 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6797385620915033 [2024-11-19 09:43:46,914 INFO L175 Difference]: Start difference. First operand has 70 places, 55 transitions, 401 flow. Second operand 9 states and 208 transitions. [2024-11-19 09:43:46,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 164 transitions, 1372 flow [2024-11-19 09:43:46,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 164 transitions, 1347 flow, removed 4 selfloop flow, removed 1 redundant places. [2024-11-19 09:43:46,958 INFO L231 Difference]: Finished difference. Result has 82 places, 81 transitions, 742 flow [2024-11-19 09:43:46,959 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=742, PETRI_PLACES=82, PETRI_TRANSITIONS=81} [2024-11-19 09:43:46,959 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 44 predicate places. [2024-11-19 09:43:46,960 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 81 transitions, 742 flow [2024-11-19 09:43:46,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.0) internal successors, (196), 14 states have internal predecessors, (196), 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) [2024-11-19 09:43:46,960 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:46,961 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] [2024-11-19 09:43:46,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 09:43:47,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-19 09:43:47,166 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:43:47,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:47,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1457706674, now seen corresponding path program 2 times [2024-11-19 09:43:47,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:47,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828959728] [2024-11-19 09:43:47,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:43:47,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:47,190 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:43:47,194 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:43:47,431 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 09:43:47,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:47,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828959728] [2024-11-19 09:43:47,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828959728] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:43:47,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729515168] [2024-11-19 09:43:47,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:43:47,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:43:47,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:43:47,435 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) [2024-11-19 09:43:47,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 09:43:47,727 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:43:47,727 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:43:47,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 09:43:47,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:44:00,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:44:00,359 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:44:03,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:44:03,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729515168] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:44:03,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:44:03,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 10 [2024-11-19 09:44:03,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919421380] [2024-11-19 09:44:03,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:44:03,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 09:44:03,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:44:03,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 09:44:03,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=76, Unknown=2, NotChecked=0, Total=110 [2024-11-19 09:44:03,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:44:03,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 742 flow. Second operand has 11 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 states have internal predecessors, (166), 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) [2024-11-19 09:44:03,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:44:03,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:44:03,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:44:09,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 09:44:16,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 09:44:22,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 09:44:26,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 09:44:30,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 09:44:33,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 09:44:37,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 09:44:41,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 09:44:47,708 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 [] [2024-11-19 09:44:49,912 INFO L124 PetriNetUnfolderBase]: 3608/4976 cut-off events. [2024-11-19 09:44:49,912 INFO L125 PetriNetUnfolderBase]: For 21214/21214 co-relation queries the response was YES. [2024-11-19 09:44:49,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26520 conditions, 4976 events. 3608/4976 cut-off events. For 21214/21214 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 23197 event pairs, 382 based on Foata normal form. 4/4972 useless extension candidates. Maximal degree in co-relation 25633. Up to 2551 conditions per place. [2024-11-19 09:44:49,954 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 207 selfloop transitions, 69 changer transitions 11/292 dead transitions. [2024-11-19 09:44:49,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 292 transitions, 2854 flow [2024-11-19 09:44:49,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 09:44:49,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-19 09:44:49,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 324 transitions. [2024-11-19 09:44:49,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.680672268907563 [2024-11-19 09:44:49,958 INFO L175 Difference]: Start difference. First operand has 82 places, 81 transitions, 742 flow. Second operand 14 states and 324 transitions. [2024-11-19 09:44:49,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 292 transitions, 2854 flow [2024-11-19 09:44:50,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 292 transitions, 2803 flow, removed 23 selfloop flow, removed 1 redundant places. [2024-11-19 09:44:50,006 INFO L231 Difference]: Finished difference. Result has 104 places, 145 transitions, 1672 flow [2024-11-19 09:44:50,008 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1672, PETRI_PLACES=104, PETRI_TRANSITIONS=145} [2024-11-19 09:44:50,009 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 66 predicate places. [2024-11-19 09:44:50,009 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 145 transitions, 1672 flow [2024-11-19 09:44:50,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 states have internal predecessors, (166), 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) [2024-11-19 09:44:50,009 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:44:50,010 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] [2024-11-19 09:44:50,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 09:44:50,210 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,SelfDestructingSolverStorable10 [2024-11-19 09:44:50,211 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-19 09:44:50,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:44:50,211 INFO L85 PathProgramCache]: Analyzing trace with hash 383872642, now seen corresponding path program 1 times [2024-11-19 09:44:50,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:44:50,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617667805] [2024-11-19 09:44:50,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:44:50,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:44:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:44:50,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:44:50,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:44:50,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617667805] [2024-11-19 09:44:50,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617667805] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:44:50,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655699689] [2024-11-19 09:44:50,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:44:50,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:44:50,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:44:50,614 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) [2024-11-19 09:44:50,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 09:44:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:44:50,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 09:44:50,733 INFO L278 TraceCheckSpWp]: Computing forward predicates...