./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe032_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d 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/safe032_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 ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:36:51,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:36:51,176 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:36:51,181 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:36:51,181 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:36:51,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:36:51,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:36:51,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:36:51,211 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:36:51,213 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:36:51,213 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:36:51,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:36:51,214 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:36:51,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:36:51,218 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:36:51,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:36:51,218 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:36:51,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:36:51,219 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:36:51,219 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:36:51,222 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:36:51,223 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:36:51,223 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:36:51,224 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:36:51,224 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:36:51,224 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:36:51,224 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:36:51,225 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:36:51,225 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:36:51,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:36:51,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:36:51,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:36:51,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:36:51,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:36:51,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:36:51,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:36:51,227 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:36:51,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:36:51,227 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:36:51,228 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:36:51,228 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:36:51,228 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:36:51,229 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 [2024-11-09 10:36:51,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:36:51,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:36:51,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:36:51,521 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:36:51,522 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:36:51,523 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe032_tso.i [2024-11-09 10:36:53,045 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:36:53,310 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:36:53,311 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.i [2024-11-09 10:36:53,333 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47881416e/aeb01eedab9d4204919f6edc46a6f7e0/FLAG18c9ccb29 [2024-11-09 10:36:53,350 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47881416e/aeb01eedab9d4204919f6edc46a6f7e0 [2024-11-09 10:36:53,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:36:53,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:36:53,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:36:53,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:36:53,363 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:36:53,364 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:36:53" (1/1) ... [2024-11-09 10:36:53,365 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77deb7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:53, skipping insertion in model container [2024-11-09 10:36:53,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:36:53" (1/1) ... [2024-11-09 10:36:53,417 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:36:53,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:36:53,834 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:36:53,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:36:54,012 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:36:54,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:54 WrapperNode [2024-11-09 10:36:54,012 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:36:54,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:36:54,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:36:54,021 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:36:54,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:54" (1/1) ... [2024-11-09 10:36:54,048 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:54" (1/1) ... [2024-11-09 10:36:54,085 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-11-09 10:36:54,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:36:54,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:36:54,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:36:54,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:36:54,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:54" (1/1) ... [2024-11-09 10:36:54,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:54" (1/1) ... [2024-11-09 10:36:54,102 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:54" (1/1) ... [2024-11-09 10:36:54,131 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]. [2024-11-09 10:36:54,132 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:54" (1/1) ... [2024-11-09 10:36:54,132 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:54" (1/1) ... [2024-11-09 10:36:54,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:54" (1/1) ... [2024-11-09 10:36:54,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:54" (1/1) ... [2024-11-09 10:36:54,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:54" (1/1) ... [2024-11-09 10:36:54,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:54" (1/1) ... [2024-11-09 10:36:54,150 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:36:54,153 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:36:54,153 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:36:54,153 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:36:54,154 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:54" (1/1) ... [2024-11-09 10:36:54,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:36:54,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:36:54,194 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) [2024-11-09 10:36:54,197 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 [2024-11-09 10:36:54,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 10:36:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:36:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 10:36:54,245 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 10:36:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 10:36:54,245 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 10:36:54,245 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 10:36:54,245 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 10:36:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:36:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 10:36:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:36:54,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:36:54,247 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 10:36:54,365 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:36:54,368 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:36:54,527 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:36:54,527 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:36:54,621 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:36:54,622 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 10:36:54,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:36:54 BoogieIcfgContainer [2024-11-09 10:36:54,622 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:36:54,625 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:36:54,625 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:36:54,629 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:36:54,629 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:36:53" (1/3) ... [2024-11-09 10:36:54,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38705830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:36:54, skipping insertion in model container [2024-11-09 10:36:54,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:36:54" (2/3) ... [2024-11-09 10:36:54,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38705830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:36:54, skipping insertion in model container [2024-11-09 10:36:54,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:36:54" (3/3) ... [2024-11-09 10:36:54,634 INFO L112 eAbstractionObserver]: Analyzing ICFG safe032_tso.i [2024-11-09 10:36:54,653 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:36:54,654 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 10:36:54,654 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:36:54,701 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 10:36:54,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 45 transitions, 102 flow [2024-11-09 10:36:54,778 INFO L124 PetriNetUnfolderBase]: 2/42 cut-off events. [2024-11-09 10:36:54,778 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:36:54,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 42 events. 2/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2024-11-09 10:36:54,784 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 45 transitions, 102 flow [2024-11-09 10:36:54,789 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 41 transitions, 91 flow [2024-11-09 10:36:54,796 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:36:54,803 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;@1e9e7d38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:36:54,804 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-09 10:36:54,815 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:36:54,816 INFO L124 PetriNetUnfolderBase]: 2/39 cut-off events. [2024-11-09 10:36:54,816 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:36:54,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:36:54,817 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:36:54,817 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:36:54,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:36:54,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1454613537, now seen corresponding path program 1 times [2024-11-09 10:36:54,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:36:54,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489296879] [2024-11-09 10:36:54,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:36:54,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:36:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:36:55,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:36:55,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:36:55,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489296879] [2024-11-09 10:36:55,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489296879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:36:55,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:36:55,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:36:55,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455498220] [2024-11-09 10:36:55,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:36:55,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:36:55,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:36:55,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:36:55,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:36:55,212 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 45 [2024-11-09 10:36:55,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-09 10:36:55,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:36:55,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 45 [2024-11-09 10:36:55,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:36:55,319 INFO L124 PetriNetUnfolderBase]: 75/222 cut-off events. [2024-11-09 10:36:55,320 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:36:55,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 222 events. 75/222 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1210 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 366. Up to 136 conditions per place. [2024-11-09 10:36:55,325 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 12 selfloop transitions, 1 changer transitions 1/37 dead transitions. [2024-11-09 10:36:55,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 37 transitions, 111 flow [2024-11-09 10:36:55,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:36:55,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:36:55,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2024-11-09 10:36:55,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7037037037037037 [2024-11-09 10:36:55,338 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 91 flow. Second operand 3 states and 95 transitions. [2024-11-09 10:36:55,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 37 transitions, 111 flow [2024-11-09 10:36:55,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 108 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 10:36:55,346 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 80 flow [2024-11-09 10:36:55,349 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-11-09 10:36:55,353 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2024-11-09 10:36:55,354 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 80 flow [2024-11-09 10:36:55,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-11-09 10:36:55,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:36:55,355 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:36:55,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:36:55,356 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:36:55,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:36:55,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1454612013, now seen corresponding path program 1 times [2024-11-09 10:36:55,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:36:55,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236180587] [2024-11-09 10:36:55,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:36:55,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:36:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:36:55,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:36:55,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:36:55,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236180587] [2024-11-09 10:36:55,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236180587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:36:55,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:36:55,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:36:55,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845338300] [2024-11-09 10:36:55,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:36:55,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:36:55,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:36:55,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:36:55,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:36:55,818 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-09 10:36:55,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-09 10:36:55,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:36:55,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-09 10:36:55,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:36:56,331 INFO L124 PetriNetUnfolderBase]: 1887/3308 cut-off events. [2024-11-09 10:36:56,332 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:36:56,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6168 conditions, 3308 events. 1887/3308 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 22799 event pairs, 448 based on Foata normal form. 0/3165 useless extension candidates. Maximal degree in co-relation 6162. Up to 1223 conditions per place. [2024-11-09 10:36:56,352 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 30 selfloop transitions, 7 changer transitions 61/113 dead transitions. [2024-11-09 10:36:56,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 113 transitions, 434 flow [2024-11-09 10:36:56,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 10:36:56,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 10:36:56,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 271 transitions. [2024-11-09 10:36:56,356 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6691358024691358 [2024-11-09 10:36:56,356 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 80 flow. Second operand 9 states and 271 transitions. [2024-11-09 10:36:56,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 113 transitions, 434 flow [2024-11-09 10:36:56,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 113 transitions, 433 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:36:56,362 INFO L231 Difference]: Finished difference. Result has 60 places, 41 transitions, 175 flow [2024-11-09 10:36:56,363 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=175, PETRI_PLACES=60, PETRI_TRANSITIONS=41} [2024-11-09 10:36:56,364 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 11 predicate places. [2024-11-09 10:36:56,364 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 41 transitions, 175 flow [2024-11-09 10:36:56,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2024-11-09 10:36:56,365 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:36:56,365 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:36:56,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 10:36:56,366 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:36:56,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:36:56,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1451683412, now seen corresponding path program 1 times [2024-11-09 10:36:56,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:36:56,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731050701] [2024-11-09 10:36:56,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:36:56,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:36:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:36:56,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:36:56,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:36:56,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731050701] [2024-11-09 10:36:56,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731050701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:36:56,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:36:56,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:36:56,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575679139] [2024-11-09 10:36:56,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:36:56,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:36:56,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:36:56,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:36:56,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:36:56,622 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-09 10:36:56,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 41 transitions, 175 flow. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-11-09 10:36:56,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:36:56,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-09 10:36:56,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:36:57,021 INFO L124 PetriNetUnfolderBase]: 1088/2139 cut-off events. [2024-11-09 10:36:57,021 INFO L125 PetriNetUnfolderBase]: For 4212/4219 co-relation queries the response was YES. [2024-11-09 10:36:57,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6600 conditions, 2139 events. 1088/2139 cut-off events. For 4212/4219 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 14642 event pairs, 218 based on Foata normal form. 81/2188 useless extension candidates. Maximal degree in co-relation 6585. Up to 610 conditions per place. [2024-11-09 10:36:57,035 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 40 selfloop transitions, 7 changer transitions 58/120 dead transitions. [2024-11-09 10:36:57,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 120 transitions, 825 flow [2024-11-09 10:36:57,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 10:36:57,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 10:36:57,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 280 transitions. [2024-11-09 10:36:57,038 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2024-11-09 10:36:57,038 INFO L175 Difference]: Start difference. First operand has 60 places, 41 transitions, 175 flow. Second operand 10 states and 280 transitions. [2024-11-09 10:36:57,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 120 transitions, 825 flow [2024-11-09 10:36:57,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 120 transitions, 711 flow, removed 26 selfloop flow, removed 4 redundant places. [2024-11-09 10:36:57,061 INFO L231 Difference]: Finished difference. Result has 67 places, 45 transitions, 231 flow [2024-11-09 10:36:57,061 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=231, PETRI_PLACES=67, PETRI_TRANSITIONS=45} [2024-11-09 10:36:57,063 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 18 predicate places. [2024-11-09 10:36:57,063 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 45 transitions, 231 flow [2024-11-09 10:36:57,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 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) [2024-11-09 10:36:57,064 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:36:57,064 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] [2024-11-09 10:36:57,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 10:36:57,064 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:36:57,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:36:57,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1725856304, now seen corresponding path program 1 times [2024-11-09 10:36:57,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:36:57,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142356456] [2024-11-09 10:36:57,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:36:57,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:36:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:36:57,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:36:57,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:36:57,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142356456] [2024-11-09 10:36:57,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142356456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:36:57,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:36:57,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:36:57,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116454468] [2024-11-09 10:36:57,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:36:57,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:36:57,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:36:57,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:36:57,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:36:57,215 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-09 10:36:57,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 45 transitions, 231 flow. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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) [2024-11-09 10:36:57,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:36:57,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-09 10:36:57,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:36:57,443 INFO L124 PetriNetUnfolderBase]: 614/1483 cut-off events. [2024-11-09 10:36:57,444 INFO L125 PetriNetUnfolderBase]: For 3453/3555 co-relation queries the response was YES. [2024-11-09 10:36:57,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4206 conditions, 1483 events. 614/1483 cut-off events. For 3453/3555 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 11369 event pairs, 222 based on Foata normal form. 87/1445 useless extension candidates. Maximal degree in co-relation 4184. Up to 436 conditions per place. [2024-11-09 10:36:57,458 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 20 selfloop transitions, 5 changer transitions 22/73 dead transitions. [2024-11-09 10:36:57,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 73 transitions, 445 flow [2024-11-09 10:36:57,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:36:57,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:36:57,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 204 transitions. [2024-11-09 10:36:57,460 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2024-11-09 10:36:57,460 INFO L175 Difference]: Start difference. First operand has 67 places, 45 transitions, 231 flow. Second operand 7 states and 204 transitions. [2024-11-09 10:36:57,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 73 transitions, 445 flow [2024-11-09 10:36:57,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 73 transitions, 410 flow, removed 16 selfloop flow, removed 3 redundant places. [2024-11-09 10:36:57,471 INFO L231 Difference]: Finished difference. Result has 69 places, 45 transitions, 239 flow [2024-11-09 10:36:57,471 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=239, PETRI_PLACES=69, PETRI_TRANSITIONS=45} [2024-11-09 10:36:57,472 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 20 predicate places. [2024-11-09 10:36:57,472 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 45 transitions, 239 flow [2024-11-09 10:36:57,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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) [2024-11-09 10:36:57,472 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:36:57,473 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] [2024-11-09 10:36:57,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 10:36:57,473 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:36:57,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:36:57,474 INFO L85 PathProgramCache]: Analyzing trace with hash 300460892, now seen corresponding path program 1 times [2024-11-09 10:36:57,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:36:57,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144200245] [2024-11-09 10:36:57,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:36:57,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:36:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:36:57,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:36:57,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:36:57,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144200245] [2024-11-09 10:36:57,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144200245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:36:57,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:36:57,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:36:57,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958203291] [2024-11-09 10:36:57,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:36:57,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:36:57,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:36:57,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:36:57,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:36:57,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-09 10:36:57,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 45 transitions, 239 flow. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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) [2024-11-09 10:36:57,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:36:57,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-09 10:36:57,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:36:57,859 INFO L124 PetriNetUnfolderBase]: 503/1132 cut-off events. [2024-11-09 10:36:57,860 INFO L125 PetriNetUnfolderBase]: For 2631/2701 co-relation queries the response was YES. [2024-11-09 10:36:57,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3465 conditions, 1132 events. 503/1132 cut-off events. For 2631/2701 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 7308 event pairs, 154 based on Foata normal form. 53/1095 useless extension candidates. Maximal degree in co-relation 3440. Up to 543 conditions per place. [2024-11-09 10:36:57,869 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 24 selfloop transitions, 7 changer transitions 22/78 dead transitions. [2024-11-09 10:36:57,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 78 transitions, 531 flow [2024-11-09 10:36:57,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:36:57,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:36:57,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 207 transitions. [2024-11-09 10:36:57,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2024-11-09 10:36:57,872 INFO L175 Difference]: Start difference. First operand has 69 places, 45 transitions, 239 flow. Second operand 7 states and 207 transitions. [2024-11-09 10:36:57,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 78 transitions, 531 flow [2024-11-09 10:36:57,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 78 transitions, 474 flow, removed 26 selfloop flow, removed 9 redundant places. [2024-11-09 10:36:57,880 INFO L231 Difference]: Finished difference. Result has 67 places, 49 transitions, 275 flow [2024-11-09 10:36:57,881 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=275, PETRI_PLACES=67, PETRI_TRANSITIONS=49} [2024-11-09 10:36:57,881 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 18 predicate places. [2024-11-09 10:36:57,881 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 49 transitions, 275 flow [2024-11-09 10:36:57,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 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) [2024-11-09 10:36:57,882 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:36:57,882 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:36:57,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 10:36:57,882 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:36:57,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:36:57,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1836809999, now seen corresponding path program 1 times [2024-11-09 10:36:57,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:36:57,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087427468] [2024-11-09 10:36:57,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:36:57,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:36:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:36:57,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:36:57,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:36:57,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087427468] [2024-11-09 10:36:57,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087427468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:36:57,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:36:57,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:36:57,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349992298] [2024-11-09 10:36:57,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:36:57,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:36:57,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:36:57,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:36:57,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:36:58,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-09 10:36:58,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 49 transitions, 275 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2024-11-09 10:36:58,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:36:58,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-09 10:36:58,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:36:58,190 INFO L124 PetriNetUnfolderBase]: 690/1443 cut-off events. [2024-11-09 10:36:58,190 INFO L125 PetriNetUnfolderBase]: For 1629/1665 co-relation queries the response was YES. [2024-11-09 10:36:58,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3576 conditions, 1443 events. 690/1443 cut-off events. For 1629/1665 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 9170 event pairs, 166 based on Foata normal form. 72/1451 useless extension candidates. Maximal degree in co-relation 3553. Up to 635 conditions per place. [2024-11-09 10:36:58,205 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 27 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2024-11-09 10:36:58,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 64 transitions, 373 flow [2024-11-09 10:36:58,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:36:58,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 10:36:58,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions. [2024-11-09 10:36:58,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-09 10:36:58,208 INFO L175 Difference]: Start difference. First operand has 67 places, 49 transitions, 275 flow. Second operand 4 states and 126 transitions. [2024-11-09 10:36:58,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 64 transitions, 373 flow [2024-11-09 10:36:58,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 356 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-09 10:36:58,213 INFO L231 Difference]: Finished difference. Result has 63 places, 53 transitions, 296 flow [2024-11-09 10:36:58,214 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=296, PETRI_PLACES=63, PETRI_TRANSITIONS=53} [2024-11-09 10:36:58,214 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 14 predicate places. [2024-11-09 10:36:58,214 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 53 transitions, 296 flow [2024-11-09 10:36:58,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2024-11-09 10:36:58,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:36:58,215 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:36:58,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 10:36:58,216 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:36:58,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:36:58,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1931504938, now seen corresponding path program 1 times [2024-11-09 10:36:58,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:36:58,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450270525] [2024-11-09 10:36:58,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:36:58,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:36:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:36:58,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:36:58,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:36:58,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450270525] [2024-11-09 10:36:58,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450270525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:36:58,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:36:58,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:36:58,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55408861] [2024-11-09 10:36:58,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:36:58,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:36:58,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:36:58,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:36:58,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:36:58,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-09 10:36:58,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 53 transitions, 296 flow. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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) [2024-11-09 10:36:58,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:36:58,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-09 10:36:58,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:36:58,516 INFO L124 PetriNetUnfolderBase]: 504/1071 cut-off events. [2024-11-09 10:36:58,517 INFO L125 PetriNetUnfolderBase]: For 859/989 co-relation queries the response was YES. [2024-11-09 10:36:58,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2905 conditions, 1071 events. 504/1071 cut-off events. For 859/989 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 6177 event pairs, 56 based on Foata normal form. 81/1094 useless extension candidates. Maximal degree in co-relation 2883. Up to 380 conditions per place. [2024-11-09 10:36:58,525 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 30 selfloop transitions, 8 changer transitions 4/74 dead transitions. [2024-11-09 10:36:58,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 74 transitions, 443 flow [2024-11-09 10:36:58,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:36:58,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 10:36:58,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 159 transitions. [2024-11-09 10:36:58,527 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7066666666666667 [2024-11-09 10:36:58,527 INFO L175 Difference]: Start difference. First operand has 63 places, 53 transitions, 296 flow. Second operand 5 states and 159 transitions. [2024-11-09 10:36:58,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 74 transitions, 443 flow [2024-11-09 10:36:58,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 74 transitions, 436 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-09 10:36:58,532 INFO L231 Difference]: Finished difference. Result has 68 places, 56 transitions, 338 flow [2024-11-09 10:36:58,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=338, PETRI_PLACES=68, PETRI_TRANSITIONS=56} [2024-11-09 10:36:58,533 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 19 predicate places. [2024-11-09 10:36:58,534 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 56 transitions, 338 flow [2024-11-09 10:36:58,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 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) [2024-11-09 10:36:58,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:36:58,534 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:36:58,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 10:36:58,534 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:36:58,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:36:58,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1874127431, now seen corresponding path program 1 times [2024-11-09 10:36:58,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:36:58,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702579188] [2024-11-09 10:36:58,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:36:58,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:36:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:36:58,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:36:58,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:36:58,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702579188] [2024-11-09 10:36:58,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702579188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:36:58,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:36:58,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 10:36:58,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842228135] [2024-11-09 10:36:58,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:36:58,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 10:36:58,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:36:58,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 10:36:58,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 10:36:58,723 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-09 10:36:58,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 56 transitions, 338 flow. Second operand has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 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) [2024-11-09 10:36:58,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:36:58,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-09 10:36:58,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:36:59,121 INFO L124 PetriNetUnfolderBase]: 898/1959 cut-off events. [2024-11-09 10:36:59,122 INFO L125 PetriNetUnfolderBase]: For 4288/4479 co-relation queries the response was YES. [2024-11-09 10:36:59,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6419 conditions, 1959 events. 898/1959 cut-off events. For 4288/4479 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 14187 event pairs, 206 based on Foata normal form. 40/1851 useless extension candidates. Maximal degree in co-relation 6394. Up to 474 conditions per place. [2024-11-09 10:36:59,134 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 36 selfloop transitions, 13 changer transitions 28/99 dead transitions. [2024-11-09 10:36:59,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 99 transitions, 710 flow [2024-11-09 10:36:59,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 10:36:59,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 10:36:59,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 219 transitions. [2024-11-09 10:36:59,137 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2024-11-09 10:36:59,137 INFO L175 Difference]: Start difference. First operand has 68 places, 56 transitions, 338 flow. Second operand 8 states and 219 transitions. [2024-11-09 10:36:59,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 99 transitions, 710 flow [2024-11-09 10:36:59,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 99 transitions, 666 flow, removed 19 selfloop flow, removed 4 redundant places. [2024-11-09 10:36:59,148 INFO L231 Difference]: Finished difference. Result has 75 places, 53 transitions, 326 flow [2024-11-09 10:36:59,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=326, PETRI_PLACES=75, PETRI_TRANSITIONS=53} [2024-11-09 10:36:59,150 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 26 predicate places. [2024-11-09 10:36:59,151 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 53 transitions, 326 flow [2024-11-09 10:36:59,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 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) [2024-11-09 10:36:59,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:36:59,151 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:36:59,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 10:36:59,155 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-09 10:36:59,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:36:59,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1970939463, now seen corresponding path program 2 times [2024-11-09 10:36:59,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:36:59,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241738507] [2024-11-09 10:36:59,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:36:59,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:36:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:36:59,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:36:59,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:36:59,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241738507] [2024-11-09 10:36:59,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241738507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:36:59,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:36:59,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:36:59,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191066389] [2024-11-09 10:36:59,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:36:59,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:36:59,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:36:59,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:36:59,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:36:59,301 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-09 10:36:59,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 53 transitions, 326 flow. Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 6 states have internal predecessors, (151), 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) [2024-11-09 10:36:59,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:36:59,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-09 10:36:59,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:36:59,456 INFO L124 PetriNetUnfolderBase]: 313/646 cut-off events. [2024-11-09 10:36:59,457 INFO L125 PetriNetUnfolderBase]: For 865/1356 co-relation queries the response was YES. [2024-11-09 10:36:59,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1945 conditions, 646 events. 313/646 cut-off events. For 865/1356 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3432 event pairs, 23 based on Foata normal form. 53/639 useless extension candidates. Maximal degree in co-relation 1926. Up to 288 conditions per place. [2024-11-09 10:36:59,461 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2024-11-09 10:36:59,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 67 transitions, 428 flow [2024-11-09 10:36:59,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:36:59,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 10:36:59,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 181 transitions. [2024-11-09 10:36:59,463 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6703703703703704 [2024-11-09 10:36:59,463 INFO L175 Difference]: Start difference. First operand has 75 places, 53 transitions, 326 flow. Second operand 6 states and 181 transitions. [2024-11-09 10:36:59,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 67 transitions, 428 flow [2024-11-09 10:36:59,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 67 transitions, 409 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-09 10:36:59,466 INFO L231 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2024-11-09 10:36:59,467 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0} [2024-11-09 10:36:59,467 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 18 predicate places. [2024-11-09 10:36:59,467 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 0 transitions, 0 flow [2024-11-09 10:36:59,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 6 states have internal predecessors, (151), 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) [2024-11-09 10:36:59,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-09 10:36:59,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-09 10:36:59,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-09 10:36:59,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-09 10:36:59,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-09 10:36:59,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 10:36:59,472 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:36:59,475 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 10:36:59,476 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 10:36:59,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:36:59 BasicIcfg [2024-11-09 10:36:59,485 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 10:36:59,486 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 10:36:59,486 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 10:36:59,486 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 10:36:59,487 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:36:54" (3/4) ... [2024-11-09 10:36:59,489 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 10:36:59,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-09 10:36:59,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-09 10:36:59,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-09 10:36:59,498 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-09 10:36:59,498 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-09 10:36:59,499 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 10:36:59,499 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 10:36:59,578 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 10:36:59,579 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 10:36:59,579 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 10:36:59,579 INFO L158 Benchmark]: Toolchain (without parser) took 6225.62ms. Allocated memory was 176.2MB in the beginning and 249.6MB in the end (delta: 73.4MB). Free memory was 106.1MB in the beginning and 117.1MB in the end (delta: -11.0MB). Peak memory consumption was 65.4MB. Max. memory is 16.1GB. [2024-11-09 10:36:59,580 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 176.2MB. Free memory was 133.7MB in the beginning and 133.5MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 10:36:59,580 INFO L158 Benchmark]: CACSL2BoogieTranslator took 657.17ms. Allocated memory is still 176.2MB. Free memory was 106.0MB in the beginning and 142.0MB in the end (delta: -36.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 10:36:59,580 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.72ms. Allocated memory is still 176.2MB. Free memory was 141.9MB in the beginning and 139.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 10:36:59,580 INFO L158 Benchmark]: Boogie Preprocessor took 63.82ms. Allocated memory is still 176.2MB. Free memory was 139.8MB in the beginning and 137.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 10:36:59,581 INFO L158 Benchmark]: RCFGBuilder took 469.57ms. Allocated memory is still 176.2MB. Free memory was 137.7MB in the beginning and 118.1MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 10:36:59,582 INFO L158 Benchmark]: TraceAbstraction took 4860.60ms. Allocated memory was 176.2MB in the beginning and 249.6MB in the end (delta: 73.4MB). Free memory was 117.5MB in the beginning and 121.3MB in the end (delta: -3.8MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2024-11-09 10:36:59,582 INFO L158 Benchmark]: Witness Printer took 92.98ms. Allocated memory is still 249.6MB. Free memory was 121.3MB in the beginning and 117.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 10:36:59,584 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 176.2MB. Free memory was 133.7MB in the beginning and 133.5MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 657.17ms. Allocated memory is still 176.2MB. Free memory was 106.0MB in the beginning and 142.0MB in the end (delta: -36.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.72ms. Allocated memory is still 176.2MB. Free memory was 141.9MB in the beginning and 139.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.82ms. Allocated memory is still 176.2MB. Free memory was 139.8MB in the beginning and 137.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 469.57ms. Allocated memory is still 176.2MB. Free memory was 137.7MB in the beginning and 118.1MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4860.60ms. Allocated memory was 176.2MB in the beginning and 249.6MB in the end (delta: 73.4MB). Free memory was 117.5MB in the beginning and 121.3MB in the end (delta: -3.8MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. * Witness Printer took 92.98ms. Allocated memory is still 249.6MB. Free memory was 121.3MB in the beginning and 117.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 778]: 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 7 procedures, 70 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: 4.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 372 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 335 mSDsluCounter, 193 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 129 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 736 IncrementalHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 64 mSDtfsCounter, 736 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=338occurred in iteration=7, InterpolantAutomatonStates: 59, 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, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 678 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! [2024-11-09 10:36:59,614 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