./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/rfi000_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8be7027f 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/pthread-wmm/rfi000_tso.i -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 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:08:28,758 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:08:28,833 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 16:08:28,837 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:08:28,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:08:28,861 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:08:28,862 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:08:28,862 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:08:28,863 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:08:28,865 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:08:28,865 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:08:28,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:08:28,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:08:28,866 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:08:28,869 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:08:28,870 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:08:28,870 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 16:08:28,871 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:08:28,871 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 16:08:28,871 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:08:28,871 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 16:08:28,872 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 16:08:28,872 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 16:08:28,872 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:08:28,872 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 16:08:28,872 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:08:28,872 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:08:28,873 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 16:08:28,873 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:08:28,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:08:28,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:08:28,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:08:28,874 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:08:28,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:08:28,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:08:28,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:08:28,874 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:08:28,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:08:28,875 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:08:28,875 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:08:28,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:08:28,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:08:28,877 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd [2024-11-12 16:08:29,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:08:29,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:08:29,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:08:29,196 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:08:29,197 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:08:29,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2024-11-12 16:08:30,668 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:08:30,925 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:08:30,926 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2024-11-12 16:08:30,946 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a32ce48/078266ff079b47908fcd2c7ced1b1379/FLAGc5e8aa2e3 [2024-11-12 16:08:30,963 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a32ce48/078266ff079b47908fcd2c7ced1b1379 [2024-11-12 16:08:30,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:08:30,968 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:08:30,971 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:08:30,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:08:30,977 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:08:30,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:08:30" (1/1) ... [2024-11-12 16:08:30,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df48fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:30, skipping insertion in model container [2024-11-12 16:08:30,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:08:30" (1/1) ... [2024-11-12 16:08:31,030 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:08:31,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:08:31,504 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:08:31,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:08:31,630 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:08:31,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:31 WrapperNode [2024-11-12 16:08:31,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:08:31,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:08:31,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:08:31,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:08:31,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:31" (1/1) ... [2024-11-12 16:08:31,665 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:31" (1/1) ... [2024-11-12 16:08:31,715 INFO L138 Inliner]: procedures = 174, calls = 38, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 171 [2024-11-12 16:08:31,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:08:31,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:08:31,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:08:31,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:08:31,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:31" (1/1) ... [2024-11-12 16:08:31,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:31" (1/1) ... [2024-11-12 16:08:31,733 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:31" (1/1) ... [2024-11-12 16:08:31,759 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]. [2024-11-12 16:08:31,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:31" (1/1) ... [2024-11-12 16:08:31,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:31" (1/1) ... [2024-11-12 16:08:31,768 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:31" (1/1) ... [2024-11-12 16:08:31,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:31" (1/1) ... [2024-11-12 16:08:31,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:31" (1/1) ... [2024-11-12 16:08:31,774 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:31" (1/1) ... [2024-11-12 16:08:31,777 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:08:31,779 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:08:31,782 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:08:31,782 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:08:31,783 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:31" (1/1) ... [2024-11-12 16:08:31,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:08:31,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:08:31,822 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) [2024-11-12 16:08:31,824 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 [2024-11-12 16:08:31,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 16:08:31,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 16:08:31,917 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-12 16:08:31,917 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-12 16:08:31,918 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-12 16:08:31,918 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-12 16:08:31,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 16:08:31,918 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 16:08:31,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:08:31,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:08:31,920 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 16:08:32,091 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:08:32,093 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:08:32,438 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 16:08:32,438 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:08:32,665 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:08:32,666 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 16:08:32,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:08:32 BoogieIcfgContainer [2024-11-12 16:08:32,667 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:08:32,670 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:08:32,672 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:08:32,675 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:08:32,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:08:30" (1/3) ... [2024-11-12 16:08:32,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ed1dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:08:32, skipping insertion in model container [2024-11-12 16:08:32,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:08:31" (2/3) ... [2024-11-12 16:08:32,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ed1dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:08:32, skipping insertion in model container [2024-11-12 16:08:32,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:08:32" (3/3) ... [2024-11-12 16:08:32,679 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2024-11-12 16:08:32,697 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:08:32,697 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-12 16:08:32,697 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 16:08:32,763 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 16:08:32,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 82 flow [2024-11-12 16:08:32,832 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-11-12 16:08:32,833 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:08:32,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 35 events. 2/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 35. Up to 2 conditions per place. [2024-11-12 16:08:32,838 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 82 flow [2024-11-12 16:08:32,844 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 35 transitions, 76 flow [2024-11-12 16:08:32,858 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:08:32,864 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;@c929ab1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:08:32,865 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-12 16:08:32,873 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:08:32,874 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-11-12 16:08:32,874 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:08:32,874 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:08:32,875 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:08:32,876 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-12 16:08:32,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:08:32,883 INFO L85 PathProgramCache]: Analyzing trace with hash -571450363, now seen corresponding path program 1 times [2024-11-12 16:08:32,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:08:32,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204782673] [2024-11-12 16:08:32,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:08:32,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:08:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:08:33,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:08:33,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:08:33,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204782673] [2024-11-12 16:08:33,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204782673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:08:33,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:08:33,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:08:33,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201030361] [2024-11-12 16:08:33,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:08:33,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:08:33,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:08:33,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:08:33,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:08:33,499 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-11-12 16:08:33,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-12 16:08:33,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:08:33,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-11-12 16:08:33,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:08:33,752 INFO L124 PetriNetUnfolderBase]: 230/451 cut-off events. [2024-11-12 16:08:33,752 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:08:33,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 862 conditions, 451 events. 230/451 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2401 event pairs, 20 based on Foata normal form. 36/480 useless extension candidates. Maximal degree in co-relation 852. Up to 346 conditions per place. [2024-11-12 16:08:33,759 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 25 selfloop transitions, 2 changer transitions 2/41 dead transitions. [2024-11-12 16:08:33,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 41 transitions, 146 flow [2024-11-12 16:08:33,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:08:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:08:33,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2024-11-12 16:08:33,774 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6846846846846847 [2024-11-12 16:08:33,775 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 76 flow. Second operand 3 states and 76 transitions. [2024-11-12 16:08:33,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 41 transitions, 146 flow [2024-11-12 16:08:33,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 41 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:08:33,780 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 68 flow [2024-11-12 16:08:33,783 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2024-11-12 16:08:33,787 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2024-11-12 16:08:33,788 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 68 flow [2024-11-12 16:08:33,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-11-12 16:08:33,788 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:08:33,789 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:08:33,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:08:33,789 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-12 16:08:33,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:08:33,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1138514497, now seen corresponding path program 1 times [2024-11-12 16:08:33,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:08:33,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451049077] [2024-11-12 16:08:33,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:08:33,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:08:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:08:33,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:08:33,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:08:33,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451049077] [2024-11-12 16:08:33,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451049077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:08:33,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:08:33,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:08:33,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981980217] [2024-11-12 16:08:33,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:08:33,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:08:33,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:08:33,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:08:33,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:08:33,913 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-11-12 16:08:33,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-12 16:08:33,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:08:33,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-11-12 16:08:33,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:08:34,068 INFO L124 PetriNetUnfolderBase]: 203/439 cut-off events. [2024-11-12 16:08:34,068 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-12 16:08:34,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 829 conditions, 439 events. 203/439 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2431 event pairs, 203 based on Foata normal form. 18/444 useless extension candidates. Maximal degree in co-relation 819. Up to 354 conditions per place. [2024-11-12 16:08:34,076 INFO L140 encePairwiseOnDemand]: 35/37 looper letters, 16 selfloop transitions, 1 changer transitions 1/29 dead transitions. [2024-11-12 16:08:34,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 29 transitions, 102 flow [2024-11-12 16:08:34,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:08:34,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:08:34,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2024-11-12 16:08:34,079 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5225225225225225 [2024-11-12 16:08:34,079 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 68 flow. Second operand 3 states and 58 transitions. [2024-11-12 16:08:34,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 29 transitions, 102 flow [2024-11-12 16:08:34,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 29 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:08:34,080 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 62 flow [2024-11-12 16:08:34,081 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-12 16:08:34,083 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2024-11-12 16:08:34,083 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 62 flow [2024-11-12 16:08:34,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-12 16:08:34,084 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:08:34,084 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:08:34,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:08:34,085 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-12 16:08:34,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:08:34,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1138513064, now seen corresponding path program 1 times [2024-11-12 16:08:34,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:08:34,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466991530] [2024-11-12 16:08:34,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:08:34,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:08:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:08:34,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:08:34,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:08:34,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466991530] [2024-11-12 16:08:34,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466991530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:08:34,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:08:34,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:08:34,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439396058] [2024-11-12 16:08:34,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:08:34,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:08:34,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:08:34,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:08:34,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:08:34,448 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-11-12 16:08:34,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-12 16:08:34,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:08:34,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-11-12 16:08:34,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:08:34,649 INFO L124 PetriNetUnfolderBase]: 246/508 cut-off events. [2024-11-12 16:08:34,649 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:08:34,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 508 events. 246/508 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2470 event pairs, 38 based on Foata normal form. 28/528 useless extension candidates. Maximal degree in co-relation 963. Up to 259 conditions per place. [2024-11-12 16:08:34,653 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 35 selfloop transitions, 4 changer transitions 1/48 dead transitions. [2024-11-12 16:08:34,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 48 transitions, 184 flow [2024-11-12 16:08:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:08:34,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:08:34,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2024-11-12 16:08:34,656 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.581081081081081 [2024-11-12 16:08:34,656 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 62 flow. Second operand 4 states and 86 transitions. [2024-11-12 16:08:34,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 48 transitions, 184 flow [2024-11-12 16:08:34,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 183 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:08:34,659 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 87 flow [2024-11-12 16:08:34,660 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=87, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2024-11-12 16:08:34,660 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2024-11-12 16:08:34,660 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 87 flow [2024-11-12 16:08:34,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-12 16:08:34,661 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:08:34,661 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:08:34,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 16:08:34,661 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-12 16:08:34,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:08:34,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1897973871, now seen corresponding path program 1 times [2024-11-12 16:08:34,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:08:34,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122443760] [2024-11-12 16:08:34,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:08:34,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:08:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:08:34,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:08:34,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:08:34,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122443760] [2024-11-12 16:08:34,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122443760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:08:34,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:08:34,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:08:34,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168309803] [2024-11-12 16:08:34,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:08:34,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:08:34,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:08:34,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:08:34,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:08:34,973 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 37 [2024-11-12 16:08:34,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-12 16:08:34,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:08:34,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 37 [2024-11-12 16:08:34,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:08:35,140 INFO L124 PetriNetUnfolderBase]: 114/240 cut-off events. [2024-11-12 16:08:35,140 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-11-12 16:08:35,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 566 conditions, 240 events. 114/240 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 825 event pairs, 26 based on Foata normal form. 18/252 useless extension candidates. Maximal degree in co-relation 557. Up to 101 conditions per place. [2024-11-12 16:08:35,142 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 29 selfloop transitions, 6 changer transitions 1/44 dead transitions. [2024-11-12 16:08:35,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 44 transitions, 192 flow [2024-11-12 16:08:35,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:08:35,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 16:08:35,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 93 transitions. [2024-11-12 16:08:35,144 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5027027027027027 [2024-11-12 16:08:35,144 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 87 flow. Second operand 5 states and 93 transitions. [2024-11-12 16:08:35,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 44 transitions, 192 flow [2024-11-12 16:08:35,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 44 transitions, 183 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-12 16:08:35,146 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 103 flow [2024-11-12 16:08:35,146 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=103, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2024-11-12 16:08:35,148 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2024-11-12 16:08:35,148 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 103 flow [2024-11-12 16:08:35,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-12 16:08:35,148 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:08:35,148 INFO L206 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] [2024-11-12 16:08:35,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 16:08:35,149 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-12 16:08:35,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:08:35,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1859928724, now seen corresponding path program 1 times [2024-11-12 16:08:35,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:08:35,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505019585] [2024-11-12 16:08:35,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:08:35,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:08:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:08:38,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:08:38,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:08:38,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505019585] [2024-11-12 16:08:38,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505019585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:08:38,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:08:38,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-12 16:08:38,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566419843] [2024-11-12 16:08:38,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:08:38,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 16:08:38,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:08:38,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 16:08:38,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-12 16:08:38,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-11-12 16:08:38,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 103 flow. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 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) [2024-11-12 16:08:38,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:08:38,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-11-12 16:08:38,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:08:39,386 INFO L124 PetriNetUnfolderBase]: 123/303 cut-off events. [2024-11-12 16:08:39,387 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-11-12 16:08:39,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 303 events. 123/303 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1234 event pairs, 37 based on Foata normal form. 4/296 useless extension candidates. Maximal degree in co-relation 658. Up to 116 conditions per place. [2024-11-12 16:08:39,388 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 22 selfloop transitions, 9 changer transitions 17/60 dead transitions. [2024-11-12 16:08:39,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 60 transitions, 265 flow [2024-11-12 16:08:39,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 16:08:39,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 16:08:39,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 166 transitions. [2024-11-12 16:08:39,390 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4984984984984985 [2024-11-12 16:08:39,391 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 103 flow. Second operand 9 states and 166 transitions. [2024-11-12 16:08:39,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 60 transitions, 265 flow [2024-11-12 16:08:39,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 60 transitions, 231 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-12 16:08:39,393 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 136 flow [2024-11-12 16:08:39,393 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=136, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2024-11-12 16:08:39,394 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2024-11-12 16:08:39,394 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 37 transitions, 136 flow [2024-11-12 16:08:39,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 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) [2024-11-12 16:08:39,395 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:08:39,395 INFO L206 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] [2024-11-12 16:08:39,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 16:08:39,395 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-12 16:08:39,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:08:39,395 INFO L85 PathProgramCache]: Analyzing trace with hash -970632960, now seen corresponding path program 2 times [2024-11-12 16:08:39,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:08:39,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389978379] [2024-11-12 16:08:39,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:08:39,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:08:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:08:39,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:08:39,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:08:39,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389978379] [2024-11-12 16:08:39,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389978379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:08:39,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:08:39,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 16:08:39,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814791838] [2024-11-12 16:08:39,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:08:39,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:08:39,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:08:39,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:08:39,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:08:39,811 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 37 [2024-11-12 16:08:39,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 37 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:08:39,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:08:39,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 37 [2024-11-12 16:08:39,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:08:40,030 INFO L124 PetriNetUnfolderBase]: 210/485 cut-off events. [2024-11-12 16:08:40,031 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-11-12 16:08:40,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1194 conditions, 485 events. 210/485 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2303 event pairs, 91 based on Foata normal form. 4/474 useless extension candidates. Maximal degree in co-relation 1181. Up to 201 conditions per place. [2024-11-12 16:08:40,034 INFO L140 encePairwiseOnDemand]: 32/37 looper letters, 20 selfloop transitions, 2 changer transitions 26/59 dead transitions. [2024-11-12 16:08:40,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 59 transitions, 301 flow [2024-11-12 16:08:40,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:08:40,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 16:08:40,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2024-11-12 16:08:40,037 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5351351351351351 [2024-11-12 16:08:40,038 INFO L175 Difference]: Start difference. First operand has 51 places, 37 transitions, 136 flow. Second operand 5 states and 99 transitions. [2024-11-12 16:08:40,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 59 transitions, 301 flow [2024-11-12 16:08:40,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 59 transitions, 289 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-12 16:08:40,042 INFO L231 Difference]: Finished difference. Result has 53 places, 30 transitions, 103 flow [2024-11-12 16:08:40,042 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=103, PETRI_PLACES=53, PETRI_TRANSITIONS=30} [2024-11-12 16:08:40,044 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 13 predicate places. [2024-11-12 16:08:40,045 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 30 transitions, 103 flow [2024-11-12 16:08:40,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:08:40,045 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:08:40,046 INFO L206 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] [2024-11-12 16:08:40,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 16:08:40,046 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2024-11-12 16:08:40,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:08:40,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1125913088, now seen corresponding path program 3 times [2024-11-12 16:08:40,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:08:40,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695069189] [2024-11-12 16:08:40,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:08:40,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:08:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:08:44,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:08:44,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:08:44,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695069189] [2024-11-12 16:08:44,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695069189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:08:44,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:08:44,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-12 16:08:44,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793994267] [2024-11-12 16:08:44,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:08:44,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 16:08:44,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:08:44,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 16:08:44,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-12 16:08:44,610 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-11-12 16:08:44,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 30 transitions, 103 flow. Second operand has 12 states, 12 states have (on average 14.333333333333334) internal successors, (172), 12 states have internal predecessors, (172), 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) [2024-11-12 16:08:44,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:08:44,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-11-12 16:08:44,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:08:45,049 INFO L124 PetriNetUnfolderBase]: 35/99 cut-off events. [2024-11-12 16:08:45,049 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-12 16:08:45,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 99 events. 35/99 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 209 event pairs, 10 based on Foata normal form. 4/98 useless extension candidates. Maximal degree in co-relation 231. Up to 35 conditions per place. [2024-11-12 16:08:45,050 INFO L140 encePairwiseOnDemand]: 29/37 looper letters, 0 selfloop transitions, 0 changer transitions 38/38 dead transitions. [2024-11-12 16:08:45,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 38 transitions, 175 flow [2024-11-12 16:08:45,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 16:08:45,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 16:08:45,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 146 transitions. [2024-11-12 16:08:45,052 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43843843843843844 [2024-11-12 16:08:45,052 INFO L175 Difference]: Start difference. First operand has 53 places, 30 transitions, 103 flow. Second operand 9 states and 146 transitions. [2024-11-12 16:08:45,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 38 transitions, 175 flow [2024-11-12 16:08:45,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 38 transitions, 155 flow, removed 4 selfloop flow, removed 8 redundant places. [2024-11-12 16:08:45,055 INFO L231 Difference]: Finished difference. Result has 46 places, 0 transitions, 0 flow [2024-11-12 16:08:45,055 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=46, PETRI_TRANSITIONS=0} [2024-11-12 16:08:45,055 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 6 predicate places. [2024-11-12 16:08:45,056 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 0 transitions, 0 flow [2024-11-12 16:08:45,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.333333333333334) internal successors, (172), 12 states have internal predecessors, (172), 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) [2024-11-12 16:08:45,058 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-11-12 16:08:45,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-11-12 16:08:45,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2024-11-12 16:08:45,059 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-12 16:08:45,060 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-12 16:08:45,061 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2024-11-12 16:08:45,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 16:08:45,061 INFO L421 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2024-11-12 16:08:45,067 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 16:08:45,067 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 16:08:45,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:08:45 BasicIcfg [2024-11-12 16:08:45,073 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 16:08:45,074 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 16:08:45,074 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 16:08:45,074 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 16:08:45,074 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:08:32" (3/4) ... [2024-11-12 16:08:45,076 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 16:08:45,079 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-12 16:08:45,079 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-12 16:08:45,084 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 78 nodes and edges [2024-11-12 16:08:45,085 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-12 16:08:45,086 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-12 16:08:45,086 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-12 16:08:45,182 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 16:08:45,183 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 16:08:45,183 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 16:08:45,183 INFO L158 Benchmark]: Toolchain (without parser) took 14215.10ms. Allocated memory was 163.6MB in the beginning and 557.8MB in the end (delta: 394.3MB). Free memory was 117.5MB in the beginning and 373.9MB in the end (delta: -256.4MB). Peak memory consumption was 136.6MB. Max. memory is 16.1GB. [2024-11-12 16:08:45,183 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 16:08:45,184 INFO L158 Benchmark]: CACSL2BoogieTranslator took 660.05ms. Allocated memory is still 163.6MB. Free memory was 117.5MB in the beginning and 88.1MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-12 16:08:45,184 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.31ms. Allocated memory is still 163.6MB. Free memory was 88.1MB in the beginning and 84.7MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 16:08:45,186 INFO L158 Benchmark]: Boogie Preprocessor took 60.81ms. Allocated memory is still 163.6MB. Free memory was 84.7MB in the beginning and 80.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 16:08:45,187 INFO L158 Benchmark]: RCFGBuilder took 888.75ms. Allocated memory is still 163.6MB. Free memory was 80.5MB in the beginning and 67.5MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 16:08:45,187 INFO L158 Benchmark]: TraceAbstraction took 12403.28ms. Allocated memory was 163.6MB in the beginning and 557.8MB in the end (delta: 394.3MB). Free memory was 66.5MB in the beginning and 379.1MB in the end (delta: -312.6MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. [2024-11-12 16:08:45,187 INFO L158 Benchmark]: Witness Printer took 109.06ms. Allocated memory is still 557.8MB. Free memory was 379.1MB in the beginning and 373.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 16:08:45,188 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 67.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 660.05ms. Allocated memory is still 163.6MB. Free memory was 117.5MB in the beginning and 88.1MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.31ms. Allocated memory is still 163.6MB. Free memory was 88.1MB in the beginning and 84.7MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.81ms. Allocated memory is still 163.6MB. Free memory was 84.7MB in the beginning and 80.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 888.75ms. Allocated memory is still 163.6MB. Free memory was 80.5MB in the beginning and 67.5MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 12403.28ms. Allocated memory was 163.6MB in the beginning and 557.8MB in the end (delta: 394.3MB). Free memory was 66.5MB in the beginning and 379.1MB in the end (delta: -312.6MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. * Witness Printer took 109.06ms. Allocated memory is still 557.8MB. Free memory was 379.1MB in the beginning and 373.9MB 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: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 824]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: 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 5 procedures, 55 locations, 6 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: 12.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 213 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 198 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 93 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 615 IncrementalHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 6 mSDtfsCounter, 615 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=5, InterpolantAutomatonStates: 38, 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, 8.9s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 990 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-12 16:08:45,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE