./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/bench-exp2x9.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-exp2x9.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 af523f24b0126267447f5590b01302c6de6f439c37a01df1dbf66192a849a6d6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 09:43:30,993 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 09:43:31,072 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 09:43:31,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 09:43:31,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 09:43:31,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 09:43:31,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 09:43:31,110 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 09:43:31,111 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 09:43:31,112 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 09:43:31,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 09:43:31,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 09:43:31,113 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 09:43:31,114 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 09:43:31,116 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 09:43:31,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 09:43:31,116 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 09:43:31,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 09:43:31,117 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 09:43:31,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 09:43:31,117 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 09:43:31,121 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 09:43:31,122 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 09:43:31,122 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 09:43:31,122 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 09:43:31,122 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 09:43:31,122 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 09:43:31,123 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 09:43:31,123 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 09:43:31,123 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 09:43:31,123 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 09:43:31,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 09:43:31,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 09:43:31,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:43:31,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 09:43:31,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 09:43:31,125 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 09:43:31,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 09:43:31,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 09:43:31,127 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 09:43:31,127 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 09:43:31,129 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 09:43:31,129 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af523f24b0126267447f5590b01302c6de6f439c37a01df1dbf66192a849a6d6 [2024-11-19 09:43:31,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 09:43:31,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 09:43:31,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 09:43:31,422 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 09:43:31,423 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 09:43:31,424 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2024-11-19 09:43:32,789 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 09:43:32,985 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 09:43:32,986 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2024-11-19 09:43:32,993 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7e96c64a/1a14282a375548e0958b791bc197d289/FLAG74d766b19 [2024-11-19 09:43:33,008 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7e96c64a/1a14282a375548e0958b791bc197d289 [2024-11-19 09:43:33,010 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 09:43:33,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 09:43:33,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 09:43:33,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 09:43:33,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 09:43:33,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:43:33" (1/1) ... [2024-11-19 09:43:33,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1064370e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:33, skipping insertion in model container [2024-11-19 09:43:33,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:43:33" (1/1) ... [2024-11-19 09:43:33,041 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 09:43:33,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:43:33,240 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 09:43:33,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 09:43:33,277 INFO L204 MainTranslator]: Completed translation [2024-11-19 09:43:33,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:33 WrapperNode [2024-11-19 09:43:33,278 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 09:43:33,279 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 09:43:33,279 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 09:43:33,279 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 09:43:33,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:33" (1/1) ... [2024-11-19 09:43:33,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:33" (1/1) ... [2024-11-19 09:43:33,332 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-11-19 09:43:33,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 09:43:33,333 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 09:43:33,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 09:43:33,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 09:43:33,346 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:33" (1/1) ... [2024-11-19 09:43:33,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:33" (1/1) ... [2024-11-19 09:43:33,349 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:33" (1/1) ... [2024-11-19 09:43:33,371 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 09:43:33,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:33" (1/1) ... [2024-11-19 09:43:33,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:33" (1/1) ... [2024-11-19 09:43:33,376 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:33" (1/1) ... [2024-11-19 09:43:33,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:33" (1/1) ... [2024-11-19 09:43:33,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:33" (1/1) ... [2024-11-19 09:43:33,382 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:33" (1/1) ... [2024-11-19 09:43:33,384 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 09:43:33,385 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 09:43:33,385 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 09:43:33,385 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 09:43:33,386 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:33" (1/1) ... [2024-11-19 09:43:33,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 09:43:33,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:43:33,418 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 09:43:33,422 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 09:43:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 09:43:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 09:43:33,477 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 09:43:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 09:43:33,478 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 09:43:33,478 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 09:43:33,478 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 09:43:33,478 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-19 09:43:33,479 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-19 09:43:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 09:43:33,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 09:43:33,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 09:43:33,481 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 09:43:33,576 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 09:43:33,579 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 09:43:33,853 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 09:43:33,853 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 09:43:34,051 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 09:43:34,052 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-19 09:43:34,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:43:34 BoogieIcfgContainer [2024-11-19 09:43:34,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 09:43:34,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 09:43:34,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 09:43:34,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 09:43:34,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:43:33" (1/3) ... [2024-11-19 09:43:34,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f25c38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:43:34, skipping insertion in model container [2024-11-19 09:43:34,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:43:33" (2/3) ... [2024-11-19 09:43:34,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f25c38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:43:34, skipping insertion in model container [2024-11-19 09:43:34,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:43:34" (3/3) ... [2024-11-19 09:43:34,061 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2024-11-19 09:43:34,076 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 09:43:34,076 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 09:43:34,076 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 09:43:34,126 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-19 09:43:34,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 34 transitions, 96 flow [2024-11-19 09:43:34,197 INFO L124 PetriNetUnfolderBase]: 4/30 cut-off events. [2024-11-19 09:43:34,199 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 09:43:34,203 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 24 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 09:43:34,203 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 34 transitions, 96 flow [2024-11-19 09:43:34,206 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 29 transitions, 82 flow [2024-11-19 09:43:34,213 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 09:43:34,220 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;@2888b962, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 09:43:34,220 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-19 09:43:34,234 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 09:43:34,235 INFO L124 PetriNetUnfolderBase]: 4/26 cut-off events. [2024-11-19 09:43:34,235 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 09:43:34,235 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:34,236 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 09:43:34,236 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 09:43:34,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:34,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1582233445, now seen corresponding path program 1 times [2024-11-19 09:43:34,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:34,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294028208] [2024-11-19 09:43:34,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:43:34,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:43:34,752 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 09:43:34,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:34,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294028208] [2024-11-19 09:43:34,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294028208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:34,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:34,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 09:43:34,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741159154] [2024-11-19 09:43:34,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:34,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 09:43:34,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:34,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 09:43:34,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 09:43:34,802 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:34,804 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 09:43:34,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:34,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:34,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:35,202 INFO L124 PetriNetUnfolderBase]: 1367/1732 cut-off events. [2024-11-19 09:43:35,202 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-19 09:43:35,210 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 5574 event pairs, 123 based on Foata normal form. 2/998 useless extension candidates. Maximal degree in co-relation 3091. Up to 1541 conditions per place. [2024-11-19 09:43:35,222 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 35 selfloop transitions, 5 changer transitions 1/46 dead transitions. [2024-11-19 09:43:35,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 46 transitions, 219 flow [2024-11-19 09:43:35,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 09:43:35,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 09:43:35,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-19 09:43:35,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7156862745098039 [2024-11-19 09:43:35,236 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 82 flow. Second operand 3 states and 73 transitions. [2024-11-19 09:43:35,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 46 transitions, 219 flow [2024-11-19 09:43:35,244 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 09:43:35,248 INFO L231 Difference]: Finished difference. Result has 31 places, 31 transitions, 95 flow [2024-11-19 09:43:35,250 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 09:43:35,254 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -7 predicate places. [2024-11-19 09:43:35,254 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 31 transitions, 95 flow [2024-11-19 09:43:35,255 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 09:43:35,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:35,256 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 09:43:35,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 09:43:35,256 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 09:43:35,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:35,258 INFO L85 PathProgramCache]: Analyzing trace with hash 360966023, now seen corresponding path program 1 times [2024-11-19 09:43:35,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:35,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327447274] [2024-11-19 09:43:35,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:43:35,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:43:35,385 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 09:43:35,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:35,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327447274] [2024-11-19 09:43:35,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327447274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:35,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:35,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:35,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886366092] [2024-11-19 09:43:35,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:35,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:35,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:35,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:35,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:35,390 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:35,391 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 09:43:35,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:35,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:35,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:35,684 INFO L124 PetriNetUnfolderBase]: 1593/2038 cut-off events. [2024-11-19 09:43:35,685 INFO L125 PetriNetUnfolderBase]: For 483/483 co-relation queries the response was YES. [2024-11-19 09:43:35,688 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 7019 event pairs, 113 based on Foata normal form. 34/2066 useless extension candidates. Maximal degree in co-relation 1272. Up to 842 conditions per place. [2024-11-19 09:43:35,698 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 66 selfloop transitions, 10 changer transitions 0/81 dead transitions. [2024-11-19 09:43:35,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 81 transitions, 391 flow [2024-11-19 09:43:35,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:35,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:35,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2024-11-19 09:43:35,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7058823529411765 [2024-11-19 09:43:35,702 INFO L175 Difference]: Start difference. First operand has 31 places, 31 transitions, 95 flow. Second operand 5 states and 120 transitions. [2024-11-19 09:43:35,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 81 transitions, 391 flow [2024-11-19 09:43:35,704 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 09:43:35,707 INFO L231 Difference]: Finished difference. Result has 36 places, 38 transitions, 155 flow [2024-11-19 09:43:35,707 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 09:43:35,708 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2024-11-19 09:43:35,708 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 38 transitions, 155 flow [2024-11-19 09:43:35,709 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 09:43:35,709 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:35,709 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 09:43:35,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 09:43:35,709 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 09:43:35,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:35,711 INFO L85 PathProgramCache]: Analyzing trace with hash 69828018, now seen corresponding path program 1 times [2024-11-19 09:43:35,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:35,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424494520] [2024-11-19 09:43:35,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:43:35,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:43:35,828 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 09:43:35,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:35,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424494520] [2024-11-19 09:43:35,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424494520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:35,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:35,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:35,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185327812] [2024-11-19 09:43:35,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:35,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:35,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:35,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:35,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:35,833 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:35,833 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 09:43:35,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:35,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:35,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:36,120 INFO L124 PetriNetUnfolderBase]: 1547/1992 cut-off events. [2024-11-19 09:43:36,120 INFO L125 PetriNetUnfolderBase]: For 1776/1776 co-relation queries the response was YES. [2024-11-19 09:43:36,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6028 conditions, 1992 events. 1547/1992 cut-off events. For 1776/1776 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 6970 event pairs, 95 based on Foata normal form. 46/2032 useless extension candidates. Maximal degree in co-relation 2829. Up to 812 conditions per place. [2024-11-19 09:43:36,136 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 65 selfloop transitions, 8 changer transitions 0/78 dead transitions. [2024-11-19 09:43:36,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 78 transitions, 412 flow [2024-11-19 09:43:36,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:36,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:36,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 118 transitions. [2024-11-19 09:43:36,142 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6941176470588235 [2024-11-19 09:43:36,142 INFO L175 Difference]: Start difference. First operand has 36 places, 38 transitions, 155 flow. Second operand 5 states and 118 transitions. [2024-11-19 09:43:36,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 78 transitions, 412 flow [2024-11-19 09:43:36,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 78 transitions, 412 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 09:43:36,147 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 169 flow [2024-11-19 09:43:36,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=169, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2024-11-19 09:43:36,148 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2024-11-19 09:43:36,148 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 169 flow [2024-11-19 09:43:36,148 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 09:43:36,149 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:36,149 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 09:43:36,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 09:43:36,149 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 09:43:36,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:36,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1115868239, now seen corresponding path program 1 times [2024-11-19 09:43:36,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:36,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57574284] [2024-11-19 09:43:36,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:43:36,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:43:36,238 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 09:43:36,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:36,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57574284] [2024-11-19 09:43:36,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57574284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:36,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:36,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:36,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590744124] [2024-11-19 09:43:36,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:36,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:36,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:36,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:36,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:36,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:36,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 169 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 09:43:36,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:36,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:36,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:36,537 INFO L124 PetriNetUnfolderBase]: 1869/2497 cut-off events. [2024-11-19 09:43:36,538 INFO L125 PetriNetUnfolderBase]: For 4481/4481 co-relation queries the response was YES. [2024-11-19 09:43:36,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8305 conditions, 2497 events. 1869/2497 cut-off events. For 4481/4481 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 10101 event pairs, 284 based on Foata normal form. 64/2537 useless extension candidates. Maximal degree in co-relation 4039. Up to 1031 conditions per place. [2024-11-19 09:43:36,556 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 79 selfloop transitions, 8 changer transitions 0/92 dead transitions. [2024-11-19 09:43:36,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 92 transitions, 622 flow [2024-11-19 09:43:36,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:36,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:36,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 113 transitions. [2024-11-19 09:43:36,558 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6647058823529411 [2024-11-19 09:43:36,559 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 169 flow. Second operand 5 states and 113 transitions. [2024-11-19 09:43:36,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 92 transitions, 622 flow [2024-11-19 09:43:36,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 92 transitions, 605 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 09:43:36,566 INFO L231 Difference]: Finished difference. Result has 47 places, 42 transitions, 217 flow [2024-11-19 09:43:36,567 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=217, PETRI_PLACES=47, PETRI_TRANSITIONS=42} [2024-11-19 09:43:36,567 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 9 predicate places. [2024-11-19 09:43:36,569 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 42 transitions, 217 flow [2024-11-19 09:43:36,569 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 09:43:36,569 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:36,570 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 09:43:36,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 09:43:36,570 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 09:43:36,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:36,570 INFO L85 PathProgramCache]: Analyzing trace with hash 914627515, now seen corresponding path program 2 times [2024-11-19 09:43:36,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:36,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586408309] [2024-11-19 09:43:36,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:43:36,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:36,594 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:43:36,594 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:43:36,675 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 09:43:36,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:36,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586408309] [2024-11-19 09:43:36,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586408309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:36,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:36,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:36,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409586462] [2024-11-19 09:43:36,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:36,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:36,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:36,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:36,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:36,680 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:36,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 42 transitions, 217 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 09:43:36,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:36,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:36,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:36,990 INFO L124 PetriNetUnfolderBase]: 1783/2393 cut-off events. [2024-11-19 09:43:36,990 INFO L125 PetriNetUnfolderBase]: For 4809/4809 co-relation queries the response was YES. [2024-11-19 09:43:36,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9293 conditions, 2393 events. 1783/2393 cut-off events. For 4809/4809 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 9865 event pairs, 434 based on Foata normal form. 90/2473 useless extension candidates. Maximal degree in co-relation 4805. Up to 1360 conditions per place. [2024-11-19 09:43:37,010 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 83 selfloop transitions, 8 changer transitions 0/96 dead transitions. [2024-11-19 09:43:37,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 96 transitions, 648 flow [2024-11-19 09:43:37,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:37,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:37,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2024-11-19 09:43:37,013 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-19 09:43:37,013 INFO L175 Difference]: Start difference. First operand has 47 places, 42 transitions, 217 flow. Second operand 5 states and 119 transitions. [2024-11-19 09:43:37,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 96 transitions, 648 flow [2024-11-19 09:43:37,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 96 transitions, 648 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 09:43:37,022 INFO L231 Difference]: Finished difference. Result has 53 places, 45 transitions, 267 flow [2024-11-19 09:43:37,022 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=267, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2024-11-19 09:43:37,023 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2024-11-19 09:43:37,025 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 267 flow [2024-11-19 09:43:37,025 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 09:43:37,025 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:37,025 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 09:43:37,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 09:43:37,026 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 09:43:37,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:37,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1667890513, now seen corresponding path program 2 times [2024-11-19 09:43:37,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:37,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972198154] [2024-11-19 09:43:37,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:43:37,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:37,048 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:43:37,049 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:43:37,116 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 09:43:37,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:37,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972198154] [2024-11-19 09:43:37,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972198154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:37,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:37,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:37,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89193635] [2024-11-19 09:43:37,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:37,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:37,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:37,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:37,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:37,122 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:37,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 267 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 09:43:37,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:37,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:37,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:37,393 INFO L124 PetriNetUnfolderBase]: 1610/2155 cut-off events. [2024-11-19 09:43:37,394 INFO L125 PetriNetUnfolderBase]: For 6702/6702 co-relation queries the response was YES. [2024-11-19 09:43:37,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9113 conditions, 2155 events. 1610/2155 cut-off events. For 6702/6702 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 8217 event pairs, 91 based on Foata normal form. 31/2164 useless extension candidates. Maximal degree in co-relation 5648. Up to 897 conditions per place. [2024-11-19 09:43:37,410 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 92 selfloop transitions, 11 changer transitions 0/108 dead transitions. [2024-11-19 09:43:37,411 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 108 transitions, 881 flow [2024-11-19 09:43:37,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:37,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:37,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 112 transitions. [2024-11-19 09:43:37,412 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6588235294117647 [2024-11-19 09:43:37,412 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 267 flow. Second operand 5 states and 112 transitions. [2024-11-19 09:43:37,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 108 transitions, 881 flow [2024-11-19 09:43:37,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 108 transitions, 856 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-11-19 09:43:37,423 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 319 flow [2024-11-19 09:43:37,423 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=258, 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=319, PETRI_PLACES=57, PETRI_TRANSITIONS=50} [2024-11-19 09:43:37,424 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2024-11-19 09:43:37,424 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 319 flow [2024-11-19 09:43:37,424 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 09:43:37,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:37,425 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 09:43:37,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 09:43:37,425 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 09:43:37,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:37,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1200020756, now seen corresponding path program 1 times [2024-11-19 09:43:37,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:37,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392980413] [2024-11-19 09:43:37,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:43:37,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:43:37,500 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 09:43:37,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:37,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392980413] [2024-11-19 09:43:37,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392980413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:37,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:37,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:37,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544923616] [2024-11-19 09:43:37,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:37,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:37,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:37,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:37,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:37,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:37,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 50 transitions, 319 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 09:43:37,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:37,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:37,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:37,785 INFO L124 PetriNetUnfolderBase]: 1577/2122 cut-off events. [2024-11-19 09:43:37,785 INFO L125 PetriNetUnfolderBase]: For 6970/6970 co-relation queries the response was YES. [2024-11-19 09:43:37,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9540 conditions, 2122 events. 1577/2122 cut-off events. For 6970/6970 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 8186 event pairs, 71 based on Foata normal form. 33/2133 useless extension candidates. Maximal degree in co-relation 5985. Up to 983 conditions per place. [2024-11-19 09:43:37,809 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 88 selfloop transitions, 8 changer transitions 4/105 dead transitions. [2024-11-19 09:43:37,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 105 transitions, 865 flow [2024-11-19 09:43:37,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:37,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:37,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2024-11-19 09:43:37,811 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6470588235294118 [2024-11-19 09:43:37,811 INFO L175 Difference]: Start difference. First operand has 57 places, 50 transitions, 319 flow. Second operand 5 states and 110 transitions. [2024-11-19 09:43:37,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 105 transitions, 865 flow [2024-11-19 09:43:37,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 105 transitions, 854 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-19 09:43:37,823 INFO L231 Difference]: Finished difference. Result has 61 places, 49 transitions, 322 flow [2024-11-19 09:43:37,823 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=290, 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=322, PETRI_PLACES=61, PETRI_TRANSITIONS=49} [2024-11-19 09:43:37,824 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 23 predicate places. [2024-11-19 09:43:37,825 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 322 flow [2024-11-19 09:43:37,825 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 09:43:37,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:37,826 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 09:43:37,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 09:43:37,826 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 09:43:37,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:37,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1639813088, now seen corresponding path program 2 times [2024-11-19 09:43:37,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:37,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279184115] [2024-11-19 09:43:37,828 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:43:37,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:37,851 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:43:37,852 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:43:37,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 09:43:37,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:37,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279184115] [2024-11-19 09:43:37,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279184115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:37,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:37,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:37,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338037569] [2024-11-19 09:43:37,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:37,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:37,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:37,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:37,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:37,945 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:37,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 322 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 09:43:37,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:37,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:37,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:38,206 INFO L124 PetriNetUnfolderBase]: 1515/2072 cut-off events. [2024-11-19 09:43:38,206 INFO L125 PetriNetUnfolderBase]: For 7283/7283 co-relation queries the response was YES. [2024-11-19 09:43:38,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9584 conditions, 2072 events. 1515/2072 cut-off events. For 7283/7283 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 8414 event pairs, 258 based on Foata normal form. 62/2112 useless extension candidates. Maximal degree in co-relation 6013. Up to 1124 conditions per place. [2024-11-19 09:43:38,223 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 91 selfloop transitions, 8 changer transitions 0/104 dead transitions. [2024-11-19 09:43:38,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 104 transitions, 885 flow [2024-11-19 09:43:38,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2024-11-19 09:43:38,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6352941176470588 [2024-11-19 09:43:38,225 INFO L175 Difference]: Start difference. First operand has 61 places, 49 transitions, 322 flow. Second operand 5 states and 108 transitions. [2024-11-19 09:43:38,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 104 transitions, 885 flow [2024-11-19 09:43:38,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 104 transitions, 872 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-19 09:43:38,234 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 362 flow [2024-11-19 09:43:38,235 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=311, 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=362, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2024-11-19 09:43:38,236 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 28 predicate places. [2024-11-19 09:43:38,237 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 362 flow [2024-11-19 09:43:38,238 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 09:43:38,238 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:38,238 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 09:43:38,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 09:43:38,239 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 09:43:38,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:38,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1371122206, now seen corresponding path program 2 times [2024-11-19 09:43:38,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:38,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943420541] [2024-11-19 09:43:38,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 09:43:38,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:38,254 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 09:43:38,254 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 09:43:38,306 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 09:43:38,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:38,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943420541] [2024-11-19 09:43:38,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943420541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 09:43:38,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 09:43:38,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 09:43:38,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897560419] [2024-11-19 09:43:38,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 09:43:38,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 09:43:38,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:43:38,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 09:43:38,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 09:43:38,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:43:38,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 362 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 09:43:38,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:43:38,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:43:38,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:43:38,571 INFO L124 PetriNetUnfolderBase]: 1447/1987 cut-off events. [2024-11-19 09:43:38,571 INFO L125 PetriNetUnfolderBase]: For 6916/6916 co-relation queries the response was YES. [2024-11-19 09:43:38,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9747 conditions, 1987 events. 1447/1987 cut-off events. For 6916/6916 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 8183 event pairs, 375 based on Foata normal form. 68/2045 useless extension candidates. Maximal degree in co-relation 8621. Up to 1150 conditions per place. [2024-11-19 09:43:38,588 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 111 selfloop transitions, 8 changer transitions 0/124 dead transitions. [2024-11-19 09:43:38,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 124 transitions, 1092 flow [2024-11-19 09:43:38,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 09:43:38,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 09:43:38,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 116 transitions. [2024-11-19 09:43:38,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6823529411764706 [2024-11-19 09:43:38,589 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 362 flow. Second operand 5 states and 116 transitions. [2024-11-19 09:43:38,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 124 transitions, 1092 flow [2024-11-19 09:43:38,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 124 transitions, 1034 flow, removed 20 selfloop flow, removed 2 redundant places. [2024-11-19 09:43:38,602 INFO L231 Difference]: Finished difference. Result has 70 places, 55 transitions, 399 flow [2024-11-19 09:43:38,603 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=342, 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=399, PETRI_PLACES=70, PETRI_TRANSITIONS=55} [2024-11-19 09:43:38,603 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 32 predicate places. [2024-11-19 09:43:38,604 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 55 transitions, 399 flow [2024-11-19 09:43:38,604 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 09:43:38,604 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 09:43:38,604 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 09:43:38,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 09:43:38,604 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 09:43:38,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 09:43:38,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2026511658, now seen corresponding path program 1 times [2024-11-19 09:43:38,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 09:43:38,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376503585] [2024-11-19 09:43:38,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:43:38,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 09:43:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:43:39,094 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 09:43:39,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 09:43:39,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376503585] [2024-11-19 09:43:39,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376503585] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 09:43:39,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746489351] [2024-11-19 09:43:39,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 09:43:39,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 09:43:39,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 09:43:39,098 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 09:43:39,102 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 09:43:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 09:43:39,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 09:43:39,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 09:44:53,545 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 09:44:53,545 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 09:45:00,781 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 09:45:00,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746489351] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 09:45:00,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 09:45:00,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-19 09:45:00,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91930017] [2024-11-19 09:45:00,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 09:45:00,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 09:45:00,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 09:45:00,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 09:45:00,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=168, Unknown=6, NotChecked=0, Total=240 [2024-11-19 09:45:00,784 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-19 09:45:00,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 55 transitions, 399 flow. Second operand has 16 states, 16 states have (on average 13.5) internal successors, (216), 16 states have internal predecessors, (216), 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 09:45:00,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 09:45:00,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-19 09:45:00,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 09:45:09,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []