./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/chl-collitem-subst.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 e60e484eb5ab810972130a1d83dccbab591b96ac9007b9b56059ed6674807329 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:42:36,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:42:36,950 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 21:42:36,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:42:36,954 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:42:36,978 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:42:36,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:42:36,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:42:36,983 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:42:36,984 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:42:36,984 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:42:36,985 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:42:36,985 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:42:36,986 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:42:36,986 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:42:36,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:42:36,987 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:42:36,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:42:36,988 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:42:36,988 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:42:36,989 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:42:36,992 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:42:36,992 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:42:36,992 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:42:36,992 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:42:36,993 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:42:36,993 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:42:36,993 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:42:36,993 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:42:36,994 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:42:36,994 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:42:36,995 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:42:36,995 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:42:36,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:42:37,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:42:37,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:42:37,005 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 21:42:37,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 21:42:37,006 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:42:37,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:42:37,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:42:37,007 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:42:37,007 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e60e484eb5ab810972130a1d83dccbab591b96ac9007b9b56059ed6674807329 [2024-11-22 21:42:37,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:42:37,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:42:37,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:42:37,310 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:42:37,311 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:42:37,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2024-11-22 21:42:38,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:42:38,967 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:42:38,968 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-subst.wvr.c [2024-11-22 21:42:38,974 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9febf1cd6/7e874f4c3137420faac810fbc545c6ee/FLAG5774b5b32 [2024-11-22 21:42:38,985 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9febf1cd6/7e874f4c3137420faac810fbc545c6ee [2024-11-22 21:42:38,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:42:38,989 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:42:38,990 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:42:38,990 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:42:38,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:42:38,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:42:38" (1/1) ... [2024-11-22 21:42:38,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c85b7cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:38, skipping insertion in model container [2024-11-22 21:42:38,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:42:38" (1/1) ... [2024-11-22 21:42:39,016 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:42:39,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:42:39,232 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 21:42:39,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:42:39,269 INFO L204 MainTranslator]: Completed translation [2024-11-22 21:42:39,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:39 WrapperNode [2024-11-22 21:42:39,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:42:39,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 21:42:39,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 21:42:39,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 21:42:39,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:39" (1/1) ... [2024-11-22 21:42:39,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:39" (1/1) ... [2024-11-22 21:42:39,313 INFO L138 Inliner]: procedures = 22, calls = 32, calls flagged for inlining = 19, calls inlined = 41, statements flattened = 351 [2024-11-22 21:42:39,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 21:42:39,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 21:42:39,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 21:42:39,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 21:42:39,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:39" (1/1) ... [2024-11-22 21:42:39,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:39" (1/1) ... [2024-11-22 21:42:39,329 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:39" (1/1) ... [2024-11-22 21:42:39,344 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]. [2024-11-22 21:42:39,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:39" (1/1) ... [2024-11-22 21:42:39,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:39" (1/1) ... [2024-11-22 21:42:39,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:39" (1/1) ... [2024-11-22 21:42:39,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:39" (1/1) ... [2024-11-22 21:42:39,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:39" (1/1) ... [2024-11-22 21:42:39,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:39" (1/1) ... [2024-11-22 21:42:39,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 21:42:39,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 21:42:39,364 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 21:42:39,364 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 21:42:39,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:39" (1/1) ... [2024-11-22 21:42:39,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:42:39,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:42:39,405 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) [2024-11-22 21:42:39,411 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 [2024-11-22 21:42:39,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 21:42:39,445 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-22 21:42:39,445 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-22 21:42:39,446 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-22 21:42:39,446 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-22 21:42:39,446 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-22 21:42:39,446 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-22 21:42:39,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 21:42:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-22 21:42:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-22 21:42:39,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 21:42:39,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 21:42:39,449 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 21:42:39,582 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 21:42:39,589 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 21:42:40,068 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 21:42:40,068 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 21:42:40,586 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 21:42:40,587 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 21:42:40,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:42:40 BoogieIcfgContainer [2024-11-22 21:42:40,587 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 21:42:40,590 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 21:42:40,591 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 21:42:40,594 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 21:42:40,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:42:38" (1/3) ... [2024-11-22 21:42:40,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be7593b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:42:40, skipping insertion in model container [2024-11-22 21:42:40,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:39" (2/3) ... [2024-11-22 21:42:40,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6be7593b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:42:40, skipping insertion in model container [2024-11-22 21:42:40,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:42:40" (3/3) ... [2024-11-22 21:42:40,598 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-subst.wvr.c [2024-11-22 21:42:40,616 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 21:42:40,617 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 21:42:40,617 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 21:42:40,731 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-22 21:42:40,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 27 transitions, 75 flow [2024-11-22 21:42:40,811 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-11-22 21:42:40,811 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-22 21:42:40,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 24 events. 0/24 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-22 21:42:40,815 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 27 transitions, 75 flow [2024-11-22 21:42:40,817 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 23 transitions, 64 flow [2024-11-22 21:42:40,829 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 21:42:40,838 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;@7c571018, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 21:42:40,839 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-22 21:42:40,859 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 21:42:40,860 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2024-11-22 21:42:40,860 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-22 21:42:40,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:42:40,861 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] [2024-11-22 21:42:40,862 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:42:40,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:42:40,867 INFO L85 PathProgramCache]: Analyzing trace with hash -780193865, now seen corresponding path program 1 times [2024-11-22 21:42:40,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:42:40,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105212253] [2024-11-22 21:42:40,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:42:40,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:42:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:42:45,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:42:45,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:42:45,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105212253] [2024-11-22 21:42:45,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105212253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:42:45,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:42:45,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:42:45,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583989251] [2024-11-22 21:42:45,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:42:45,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:42:45,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:42:45,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:42:45,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:42:45,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-22 21:42:45,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:42:45,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:42:45,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-22 21:42:45,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:42:45,803 INFO L124 PetriNetUnfolderBase]: 178/334 cut-off events. [2024-11-22 21:42:45,806 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2024-11-22 21:42:45,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 334 events. 178/334 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1276 event pairs, 10 based on Foata normal form. 3/336 useless extension candidates. Maximal degree in co-relation 572. Up to 110 conditions per place. [2024-11-22 21:42:45,814 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 34 selfloop transitions, 5 changer transitions 8/51 dead transitions. [2024-11-22 21:42:45,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 51 transitions, 244 flow [2024-11-22 21:42:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:42:45,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:42:45,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2024-11-22 21:42:45,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6049382716049383 [2024-11-22 21:42:45,830 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 64 flow. Second operand 6 states and 98 transitions. [2024-11-22 21:42:45,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 51 transitions, 244 flow [2024-11-22 21:42:45,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 51 transitions, 212 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-22 21:42:45,836 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 67 flow [2024-11-22 21:42:45,838 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=67, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2024-11-22 21:42:45,841 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2024-11-22 21:42:45,841 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 67 flow [2024-11-22 21:42:45,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:42:45,842 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:42:45,842 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] [2024-11-22 21:42:45,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 21:42:45,842 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:42:45,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:42:45,843 INFO L85 PathProgramCache]: Analyzing trace with hash 475595617, now seen corresponding path program 2 times [2024-11-22 21:42:45,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:42:45,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872235054] [2024-11-22 21:42:45,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:42:45,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:42:45,951 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:42:45,951 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:42:48,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:42:48,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:42:48,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872235054] [2024-11-22 21:42:48,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872235054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:42:48,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:42:48,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:42:48,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941735835] [2024-11-22 21:42:48,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:42:48,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:42:48,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:42:48,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:42:48,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:42:48,134 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-22 21:42:48,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 67 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:42:48,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:42:48,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-22 21:42:48,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:42:48,539 INFO L124 PetriNetUnfolderBase]: 194/366 cut-off events. [2024-11-22 21:42:48,539 INFO L125 PetriNetUnfolderBase]: For 109/109 co-relation queries the response was YES. [2024-11-22 21:42:48,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 838 conditions, 366 events. 194/366 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1526 event pairs, 14 based on Foata normal form. 1/366 useless extension candidates. Maximal degree in co-relation 825. Up to 151 conditions per place. [2024-11-22 21:42:48,546 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 34 selfloop transitions, 6 changer transitions 12/56 dead transitions. [2024-11-22 21:42:48,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 56 transitions, 262 flow [2024-11-22 21:42:48,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:42:48,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:42:48,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2024-11-22 21:42:48,549 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-11-22 21:42:48,549 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 67 flow. Second operand 6 states and 99 transitions. [2024-11-22 21:42:48,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 56 transitions, 262 flow [2024-11-22 21:42:48,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 56 transitions, 258 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-22 21:42:48,552 INFO L231 Difference]: Finished difference. Result has 38 places, 25 transitions, 96 flow [2024-11-22 21:42:48,552 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=96, PETRI_PLACES=38, PETRI_TRANSITIONS=25} [2024-11-22 21:42:48,552 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2024-11-22 21:42:48,552 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 25 transitions, 96 flow [2024-11-22 21:42:48,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:42:48,553 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:42:48,553 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] [2024-11-22 21:42:48,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 21:42:48,556 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:42:48,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:42:48,558 INFO L85 PathProgramCache]: Analyzing trace with hash -306990875, now seen corresponding path program 3 times [2024-11-22 21:42:48,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:42:48,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802298274] [2024-11-22 21:42:48,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 21:42:48,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:42:48,640 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 21:42:48,640 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:42:51,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:42:51,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:42:51,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802298274] [2024-11-22 21:42:51,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802298274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:42:51,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:42:51,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:42:51,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910261166] [2024-11-22 21:42:51,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:42:51,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:42:51,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:42:51,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:42:51,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:42:51,020 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-22 21:42:51,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:42:51,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:42:51,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-22 21:42:51,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:42:51,351 INFO L124 PetriNetUnfolderBase]: 189/369 cut-off events. [2024-11-22 21:42:51,351 INFO L125 PetriNetUnfolderBase]: For 304/304 co-relation queries the response was YES. [2024-11-22 21:42:51,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 914 conditions, 369 events. 189/369 cut-off events. For 304/304 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1536 event pairs, 16 based on Foata normal form. 1/369 useless extension candidates. Maximal degree in co-relation 894. Up to 190 conditions per place. [2024-11-22 21:42:51,355 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 31 selfloop transitions, 5 changer transitions 12/52 dead transitions. [2024-11-22 21:42:51,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 267 flow [2024-11-22 21:42:51,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:42:51,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:42:51,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 96 transitions. [2024-11-22 21:42:51,359 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-11-22 21:42:51,359 INFO L175 Difference]: Start difference. First operand has 38 places, 25 transitions, 96 flow. Second operand 6 states and 96 transitions. [2024-11-22 21:42:51,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 267 flow [2024-11-22 21:42:51,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 52 transitions, 251 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-22 21:42:51,363 INFO L231 Difference]: Finished difference. Result has 42 places, 24 transitions, 98 flow [2024-11-22 21:42:51,363 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=98, PETRI_PLACES=42, PETRI_TRANSITIONS=24} [2024-11-22 21:42:51,364 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 9 predicate places. [2024-11-22 21:42:51,366 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 24 transitions, 98 flow [2024-11-22 21:42:51,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:42:51,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:42:51,367 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] [2024-11-22 21:42:51,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 21:42:51,368 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:42:51,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:42:51,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1417870859, now seen corresponding path program 4 times [2024-11-22 21:42:51,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:42:51,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606278566] [2024-11-22 21:42:51,370 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-22 21:42:51,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:42:51,456 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-22 21:42:51,457 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:42:54,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:42:54,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:42:54,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606278566] [2024-11-22 21:42:54,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606278566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:42:54,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:42:54,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:42:54,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661312978] [2024-11-22 21:42:54,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:42:54,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:42:54,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:42:54,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:42:54,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:42:54,780 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-22 21:42:54,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 24 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:42:54,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:42:54,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-22 21:42:54,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:42:55,388 INFO L124 PetriNetUnfolderBase]: 138/270 cut-off events. [2024-11-22 21:42:55,389 INFO L125 PetriNetUnfolderBase]: For 230/230 co-relation queries the response was YES. [2024-11-22 21:42:55,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 270 events. 138/270 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 993 event pairs, 20 based on Foata normal form. 1/271 useless extension candidates. Maximal degree in co-relation 676. Up to 109 conditions per place. [2024-11-22 21:42:55,391 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 30 selfloop transitions, 5 changer transitions 9/48 dead transitions. [2024-11-22 21:42:55,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 48 transitions, 254 flow [2024-11-22 21:42:55,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:42:55,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:42:55,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 92 transitions. [2024-11-22 21:42:55,394 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5679012345679012 [2024-11-22 21:42:55,395 INFO L175 Difference]: Start difference. First operand has 42 places, 24 transitions, 98 flow. Second operand 6 states and 92 transitions. [2024-11-22 21:42:55,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 48 transitions, 254 flow [2024-11-22 21:42:55,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 48 transitions, 232 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-22 21:42:55,399 INFO L231 Difference]: Finished difference. Result has 42 places, 23 transitions, 89 flow [2024-11-22 21:42:55,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=89, PETRI_PLACES=42, PETRI_TRANSITIONS=23} [2024-11-22 21:42:55,399 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 9 predicate places. [2024-11-22 21:42:55,400 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 23 transitions, 89 flow [2024-11-22 21:42:55,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:42:55,401 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:42:55,401 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] [2024-11-22 21:42:55,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 21:42:55,401 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:42:55,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:42:55,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1906211381, now seen corresponding path program 5 times [2024-11-22 21:42:55,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:42:55,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948456741] [2024-11-22 21:42:55,403 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-22 21:42:55,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:42:55,455 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:42:55,456 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:42:57,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:42:57,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:42:57,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948456741] [2024-11-22 21:42:57,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948456741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:42:57,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:42:57,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:42:57,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144910792] [2024-11-22 21:42:57,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:42:57,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:42:57,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:42:57,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:42:57,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:42:57,387 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-22 21:42:57,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 23 transitions, 89 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:42:57,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:42:57,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-22 21:42:57,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:42:57,831 INFO L124 PetriNetUnfolderBase]: 101/200 cut-off events. [2024-11-22 21:42:57,831 INFO L125 PetriNetUnfolderBase]: For 212/212 co-relation queries the response was YES. [2024-11-22 21:42:57,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 200 events. 101/200 cut-off events. For 212/212 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 661 event pairs, 5 based on Foata normal form. 1/201 useless extension candidates. Maximal degree in co-relation 532. Up to 69 conditions per place. [2024-11-22 21:42:57,833 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 19 selfloop transitions, 3 changer transitions 19/45 dead transitions. [2024-11-22 21:42:57,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 45 transitions, 229 flow [2024-11-22 21:42:57,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:42:57,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:42:57,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 90 transitions. [2024-11-22 21:42:57,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-11-22 21:42:57,836 INFO L175 Difference]: Start difference. First operand has 42 places, 23 transitions, 89 flow. Second operand 6 states and 90 transitions. [2024-11-22 21:42:57,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 45 transitions, 229 flow [2024-11-22 21:42:57,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 45 transitions, 216 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-22 21:42:57,840 INFO L231 Difference]: Finished difference. Result has 44 places, 21 transitions, 76 flow [2024-11-22 21:42:57,840 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=21} [2024-11-22 21:42:57,841 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 11 predicate places. [2024-11-22 21:42:57,842 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 21 transitions, 76 flow [2024-11-22 21:42:57,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:42:57,843 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:42:57,843 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] [2024-11-22 21:42:57,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 21:42:57,843 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:42:57,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:42:57,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1182695967, now seen corresponding path program 6 times [2024-11-22 21:42:57,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:42:57,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611765262] [2024-11-22 21:42:57,844 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-22 21:42:57,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:42:57,905 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-22 21:42:57,905 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:42:59,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:42:59,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:42:59,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611765262] [2024-11-22 21:42:59,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611765262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:42:59,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:42:59,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:42:59,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175683339] [2024-11-22 21:42:59,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:42:59,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:42:59,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:42:59,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:42:59,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:42:59,997 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-22 21:42:59,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 21 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:42:59,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:42:59,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-22 21:42:59,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:43:00,303 INFO L124 PetriNetUnfolderBase]: 42/89 cut-off events. [2024-11-22 21:43:00,303 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-11-22 21:43:00,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 89 events. 42/89 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 187 event pairs, 0 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 240. Up to 54 conditions per place. [2024-11-22 21:43:00,304 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2024-11-22 21:43:00,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 26 transitions, 131 flow [2024-11-22 21:43:00,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:43:00,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:43:00,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 72 transitions. [2024-11-22 21:43:00,305 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-11-22 21:43:00,305 INFO L175 Difference]: Start difference. First operand has 44 places, 21 transitions, 76 flow. Second operand 6 states and 72 transitions. [2024-11-22 21:43:00,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 26 transitions, 131 flow [2024-11-22 21:43:00,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 26 transitions, 115 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-22 21:43:00,306 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2024-11-22 21:43:00,306 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2024-11-22 21:43:00,307 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2024-11-22 21:43:00,307 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2024-11-22 21:43:00,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:43:00,310 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-22 21:43:00,310 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-22 21:43:00,310 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-22 21:43:00,310 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-22 21:43:00,311 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-22 21:43:00,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 21:43:00,311 INFO L407 BasicCegarLoop]: Path program histogram: [6] [2024-11-22 21:43:00,313 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 21:43:00,313 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 21:43:00,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:43:00 BasicIcfg [2024-11-22 21:43:00,318 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 21:43:00,319 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 21:43:00,319 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 21:43:00,319 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 21:43:00,319 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:42:40" (3/4) ... [2024-11-22 21:43:00,321 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 21:43:00,324 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-22 21:43:00,324 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-22 21:43:00,324 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-22 21:43:00,328 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 109 nodes and edges [2024-11-22 21:43:00,328 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-22 21:43:00,329 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-22 21:43:00,329 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-22 21:43:00,428 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 21:43:00,428 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 21:43:00,428 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 21:43:00,429 INFO L158 Benchmark]: Toolchain (without parser) took 21440.30ms. Allocated memory was 157.3MB in the beginning and 809.5MB in the end (delta: 652.2MB). Free memory was 124.5MB in the beginning and 418.9MB in the end (delta: -294.4MB). Peak memory consumption was 356.4MB. Max. memory is 16.1GB. [2024-11-22 21:43:00,429 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 157.3MB. Free memory was 126.6MB in the beginning and 126.4MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:43:00,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.74ms. Allocated memory is still 157.3MB. Free memory was 123.8MB in the beginning and 110.5MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-22 21:43:00,430 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.98ms. Allocated memory is still 157.3MB. Free memory was 110.5MB in the beginning and 107.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 21:43:00,430 INFO L158 Benchmark]: Boogie Preprocessor took 48.41ms. Allocated memory is still 157.3MB. Free memory was 107.1MB in the beginning and 104.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 21:43:00,430 INFO L158 Benchmark]: RCFGBuilder took 1224.37ms. Allocated memory was 157.3MB in the beginning and 201.3MB in the end (delta: 44.0MB). Free memory was 104.3MB in the beginning and 92.6MB in the end (delta: 11.6MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. [2024-11-22 21:43:00,430 INFO L158 Benchmark]: TraceAbstraction took 19727.97ms. Allocated memory was 201.3MB in the beginning and 809.5MB in the end (delta: 608.2MB). Free memory was 91.6MB in the beginning and 424.2MB in the end (delta: -332.6MB). Peak memory consumption was 276.6MB. Max. memory is 16.1GB. [2024-11-22 21:43:00,431 INFO L158 Benchmark]: Witness Printer took 109.59ms. Allocated memory is still 809.5MB. Free memory was 424.2MB in the beginning and 418.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 21:43:00,432 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 157.3MB. Free memory was 126.6MB in the beginning and 126.4MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.74ms. Allocated memory is still 157.3MB. Free memory was 123.8MB in the beginning and 110.5MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.98ms. Allocated memory is still 157.3MB. Free memory was 110.5MB in the beginning and 107.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.41ms. Allocated memory is still 157.3MB. Free memory was 107.1MB in the beginning and 104.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1224.37ms. Allocated memory was 157.3MB in the beginning and 201.3MB in the end (delta: 44.0MB). Free memory was 104.3MB in the beginning and 92.6MB in the end (delta: 11.6MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. * TraceAbstraction took 19727.97ms. Allocated memory was 201.3MB in the beginning and 809.5MB in the end (delta: 608.2MB). Free memory was 91.6MB in the beginning and 424.2MB in the end (delta: -332.6MB). Peak memory consumption was 276.6MB. Max. memory is 16.1GB. * Witness Printer took 109.59ms. Allocated memory is still 809.5MB. Free memory was 424.2MB in the beginning and 418.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 75]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 43 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 19.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 193 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 193 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 510 IncrementalHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 0 mSDtfsCounter, 510 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=3, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 15.7s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 5652 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-22 21:43:00,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE