./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe031_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe031_tso.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 26b6897a83c9df9076ea7ea4c612ce46453382fa627c0d6af54da2d169befd96 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:41:22,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:41:22,894 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:41:22,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:41:22,899 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:41:22,922 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:41:22,923 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:41:22,923 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:41:22,924 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:41:22,927 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:41:22,927 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:41:22,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:41:22,928 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:41:22,928 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:41:22,928 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:41:22,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:41:22,928 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:41:22,929 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:41:22,929 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:41:22,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:41:22,930 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:41:22,930 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:41:22,931 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:41:22,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:41:22,932 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:41:22,932 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:41:22,932 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:41:22,932 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:41:22,932 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:41:22,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:41:22,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:41:22,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:41:22,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:41:22,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:41:22,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:41:22,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:41:22,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:41:22,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:41:22,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:41:22,935 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:41:22,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:41:22,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:41:22,936 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26b6897a83c9df9076ea7ea4c612ce46453382fa627c0d6af54da2d169befd96 [2024-10-11 19:41:23,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:41:23,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:41:23,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:41:23,184 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:41:23,185 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:41:23,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe031_tso.i [2024-10-11 19:41:24,655 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:41:24,854 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:41:24,855 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe031_tso.i [2024-10-11 19:41:24,873 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7c44de6c0/48f914ff3bb348948267c5a7ca851a9e/FLAGeba67d8c9 [2024-10-11 19:41:25,223 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7c44de6c0/48f914ff3bb348948267c5a7ca851a9e [2024-10-11 19:41:25,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:41:25,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:41:25,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:41:25,230 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:41:25,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:41:25,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:41:25" (1/1) ... [2024-10-11 19:41:25,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b86244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:25, skipping insertion in model container [2024-10-11 19:41:25,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:41:25" (1/1) ... [2024-10-11 19:41:25,299 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:41:25,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:41:25,629 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:41:25,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:41:25,712 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:41:25,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:25 WrapperNode [2024-10-11 19:41:25,713 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:41:25,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:41:25,714 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:41:25,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:41:25,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:25" (1/1) ... [2024-10-11 19:41:25,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:25" (1/1) ... [2024-10-11 19:41:25,755 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-10-11 19:41:25,755 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:41:25,756 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:41:25,757 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:41:25,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:41:25,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:25" (1/1) ... [2024-10-11 19:41:25,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:25" (1/1) ... [2024-10-11 19:41:25,774 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:25" (1/1) ... [2024-10-11 19:41:25,796 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]. [2024-10-11 19:41:25,796 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:25" (1/1) ... [2024-10-11 19:41:25,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:25" (1/1) ... [2024-10-11 19:41:25,800 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:25" (1/1) ... [2024-10-11 19:41:25,805 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:25" (1/1) ... [2024-10-11 19:41:25,807 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:25" (1/1) ... [2024-10-11 19:41:25,807 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:25" (1/1) ... [2024-10-11 19:41:25,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:41:25,813 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:41:25,813 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:41:25,813 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:41:25,813 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:25" (1/1) ... [2024-10-11 19:41:25,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:41:25,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:41:25,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:41:25,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:41:25,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:41:25,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:41:25,913 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 19:41:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 19:41:25,913 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 19:41:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 19:41:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 19:41:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 19:41:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:41:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:41:25,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:41:25,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:41:25,916 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:41:26,036 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:41:26,038 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:41:26,190 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:41:26,190 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:41:26,258 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:41:26,258 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:41:26,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:41:26 BoogieIcfgContainer [2024-10-11 19:41:26,259 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:41:26,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:41:26,262 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:41:26,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:41:26,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:41:25" (1/3) ... [2024-10-11 19:41:26,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b3d38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:41:26, skipping insertion in model container [2024-10-11 19:41:26,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:41:25" (2/3) ... [2024-10-11 19:41:26,265 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b3d38e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:41:26, skipping insertion in model container [2024-10-11 19:41:26,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:41:26" (3/3) ... [2024-10-11 19:41:26,266 INFO L112 eAbstractionObserver]: Analyzing ICFG safe031_tso.i [2024-10-11 19:41:26,277 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:41:26,278 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 19:41:26,278 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:41:26,319 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:41:26,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2024-10-11 19:41:26,379 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-10-11 19:41:26,382 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:41:26,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-10-11 19:41:26,385 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2024-10-11 19:41:26,388 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 40 transitions, 89 flow [2024-10-11 19:41:26,401 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:41:26,414 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;@5e4b96bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:41:26,415 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-11 19:41:26,432 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:41:26,433 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2024-10-11 19:41:26,433 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:41:26,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:41:26,434 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:41:26,434 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)] === [2024-10-11 19:41:26,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:41:26,439 INFO L85 PathProgramCache]: Analyzing trace with hash 136525165, now seen corresponding path program 1 times [2024-10-11 19:41:26,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:41:26,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137472807] [2024-10-11 19:41:26,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:41:26,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:41:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:41:26,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:41:26,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:41:26,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137472807] [2024-10-11 19:41:26,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137472807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:41:26,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:41:26,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:41:26,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527746715] [2024-10-11 19:41:26,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:41:26,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:41:26,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:41:26,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:41:26,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:41:26,777 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 44 [2024-10-11 19:41:26,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-10-11 19:41:26,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:41:26,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 44 [2024-10-11 19:41:26,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:41:26,926 INFO L124 PetriNetUnfolderBase]: 75/220 cut-off events. [2024-10-11 19:41:26,930 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:41:26,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 220 events. 75/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1179 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 364. Up to 136 conditions per place. [2024-10-11 19:41:26,935 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 12 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2024-10-11 19:41:26,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 109 flow [2024-10-11 19:41:26,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:41:26,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:41:26,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-10-11 19:41:26,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2024-10-11 19:41:26,965 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 89 flow. Second operand 3 states and 92 transitions. [2024-10-11 19:41:26,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 109 flow [2024-10-11 19:41:26,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 106 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 19:41:26,974 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 78 flow [2024-10-11 19:41:26,976 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2024-10-11 19:41:26,983 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2024-10-11 19:41:26,988 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 78 flow [2024-10-11 19:41:26,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-10-11 19:41:26,989 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:41:26,989 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:41:26,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:41:26,989 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)] === [2024-10-11 19:41:26,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:41:26,991 INFO L85 PathProgramCache]: Analyzing trace with hash 136526718, now seen corresponding path program 1 times [2024-10-11 19:41:26,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:41:26,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015711096] [2024-10-11 19:41:26,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:41:26,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:41:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:41:27,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:41:27,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:41:27,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015711096] [2024-10-11 19:41:27,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015711096] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:41:27,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:41:27,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:41:27,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206520986] [2024-10-11 19:41:27,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:41:27,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:41:27,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:41:27,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:41:27,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:41:27,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-10-11 19:41:27,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 78 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) [2024-10-11 19:41:27,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:41:27,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-10-11 19:41:27,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:41:27,868 INFO L124 PetriNetUnfolderBase]: 1546/2872 cut-off events. [2024-10-11 19:41:27,868 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:41:27,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5301 conditions, 2872 events. 1546/2872 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 20996 event pairs, 327 based on Foata normal form. 0/2760 useless extension candidates. Maximal degree in co-relation 5295. Up to 764 conditions per place. [2024-10-11 19:41:27,886 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 29 selfloop transitions, 6 changer transitions 55/105 dead transitions. [2024-10-11 19:41:27,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 105 transitions, 402 flow [2024-10-11 19:41:27,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:41:27,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:41:27,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 263 transitions. [2024-10-11 19:41:27,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6641414141414141 [2024-10-11 19:41:27,891 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 78 flow. Second operand 9 states and 263 transitions. [2024-10-11 19:41:27,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 105 transitions, 402 flow [2024-10-11 19:41:27,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 105 transitions, 401 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:41:27,897 INFO L231 Difference]: Finished difference. Result has 59 places, 39 transitions, 159 flow [2024-10-11 19:41:27,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=159, PETRI_PLACES=59, PETRI_TRANSITIONS=39} [2024-10-11 19:41:27,898 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-10-11 19:41:27,899 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 39 transitions, 159 flow [2024-10-11 19:41:27,899 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) [2024-10-11 19:41:27,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:41:27,899 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:41:27,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:41:27,900 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)] === [2024-10-11 19:41:27,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:41:27,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1748747841, now seen corresponding path program 1 times [2024-10-11 19:41:27,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:41:27,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023554645] [2024-10-11 19:41:27,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:41:27,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:41:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:41:28,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:41:28,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:41:28,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023554645] [2024-10-11 19:41:28,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023554645] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:41:28,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:41:28,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:41:28,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404842468] [2024-10-11 19:41:28,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:41:28,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:41:28,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:41:28,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:41:28,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:41:28,084 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-10-11 19:41:28,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 39 transitions, 159 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) [2024-10-11 19:41:28,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:41:28,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-10-11 19:41:28,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:41:28,369 INFO L124 PetriNetUnfolderBase]: 1041/2088 cut-off events. [2024-10-11 19:41:28,369 INFO L125 PetriNetUnfolderBase]: For 3461/3461 co-relation queries the response was YES. [2024-10-11 19:41:28,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6102 conditions, 2088 events. 1041/2088 cut-off events. For 3461/3461 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 14593 event pairs, 184 based on Foata normal form. 58/2130 useless extension candidates. Maximal degree in co-relation 6087. Up to 677 conditions per place. [2024-10-11 19:41:28,379 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 34 selfloop transitions, 10 changer transitions 40/99 dead transitions. [2024-10-11 19:41:28,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 99 transitions, 645 flow [2024-10-11 19:41:28,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:41:28,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:41:28,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 275 transitions. [2024-10-11 19:41:28,382 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-10-11 19:41:28,382 INFO L175 Difference]: Start difference. First operand has 59 places, 39 transitions, 159 flow. Second operand 10 states and 275 transitions. [2024-10-11 19:41:28,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 99 transitions, 645 flow [2024-10-11 19:41:28,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 99 transitions, 567 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-10-11 19:41:28,400 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 221 flow [2024-10-11 19:41:28,403 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=221, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2024-10-11 19:41:28,404 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-10-11 19:41:28,404 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 221 flow [2024-10-11 19:41:28,404 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) [2024-10-11 19:41:28,404 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:41:28,404 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:41:28,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:41:28,405 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)] === [2024-10-11 19:41:28,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:41:28,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1002011331, now seen corresponding path program 1 times [2024-10-11 19:41:28,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:41:28,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020273651] [2024-10-11 19:41:28,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:41:28,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:41:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:41:28,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:41:28,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:41:28,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020273651] [2024-10-11 19:41:28,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020273651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:41:28,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:41:28,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:41:28,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920456649] [2024-10-11 19:41:28,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:41:28,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:41:28,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:41:28,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:41:28,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:41:28,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-10-11 19:41:28,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 221 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) [2024-10-11 19:41:28,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:41:28,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-10-11 19:41:28,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:41:28,822 INFO L124 PetriNetUnfolderBase]: 987/2035 cut-off events. [2024-10-11 19:41:28,822 INFO L125 PetriNetUnfolderBase]: For 5962/5971 co-relation queries the response was YES. [2024-10-11 19:41:28,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6481 conditions, 2035 events. 987/2035 cut-off events. For 5962/5971 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 14577 event pairs, 160 based on Foata normal form. 67/2092 useless extension candidates. Maximal degree in co-relation 6460. Up to 653 conditions per place. [2024-10-11 19:41:28,866 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 38 selfloop transitions, 12 changer transitions 42/107 dead transitions. [2024-10-11 19:41:28,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 107 transitions, 751 flow [2024-10-11 19:41:28,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:41:28,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:41:28,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 274 transitions. [2024-10-11 19:41:28,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6227272727272727 [2024-10-11 19:41:28,868 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 221 flow. Second operand 10 states and 274 transitions. [2024-10-11 19:41:28,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 107 transitions, 751 flow [2024-10-11 19:41:28,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 107 transitions, 695 flow, removed 28 selfloop flow, removed 6 redundant places. [2024-10-11 19:41:28,879 INFO L231 Difference]: Finished difference. Result has 71 places, 49 transitions, 311 flow [2024-10-11 19:41:28,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=311, PETRI_PLACES=71, PETRI_TRANSITIONS=49} [2024-10-11 19:41:28,880 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 23 predicate places. [2024-10-11 19:41:28,880 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 311 flow [2024-10-11 19:41:28,880 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) [2024-10-11 19:41:28,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:41:28,880 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:41:28,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:41:28,881 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)] === [2024-10-11 19:41:28,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:41:28,881 INFO L85 PathProgramCache]: Analyzing trace with hash -610066434, now seen corresponding path program 1 times [2024-10-11 19:41:28,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:41:28,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956348276] [2024-10-11 19:41:28,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:41:28,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:41:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:41:28,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:41:28,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:41:28,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956348276] [2024-10-11 19:41:28,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956348276] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:41:28,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:41:28,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:41:28,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378300620] [2024-10-11 19:41:28,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:41:28,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:41:28,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:41:28,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:41:28,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:41:28,950 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-10-11 19:41:28,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-10-11 19:41:28,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:41:28,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-10-11 19:41:28,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:41:29,196 INFO L124 PetriNetUnfolderBase]: 1217/2455 cut-off events. [2024-10-11 19:41:29,196 INFO L125 PetriNetUnfolderBase]: For 3760/3834 co-relation queries the response was YES. [2024-10-11 19:41:29,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6241 conditions, 2455 events. 1217/2455 cut-off events. For 3760/3834 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 17568 event pairs, 226 based on Foata normal form. 140/2471 useless extension candidates. Maximal degree in co-relation 6215. Up to 1121 conditions per place. [2024-10-11 19:41:29,213 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 27 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2024-10-11 19:41:29,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 64 transitions, 409 flow [2024-10-11 19:41:29,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:41:29,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:41:29,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-10-11 19:41:29,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6931818181818182 [2024-10-11 19:41:29,215 INFO L175 Difference]: Start difference. First operand has 71 places, 49 transitions, 311 flow. Second operand 4 states and 122 transitions. [2024-10-11 19:41:29,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 64 transitions, 409 flow [2024-10-11 19:41:29,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 64 transitions, 387 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-10-11 19:41:29,229 INFO L231 Difference]: Finished difference. Result has 66 places, 53 transitions, 327 flow [2024-10-11 19:41:29,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=61, 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=327, PETRI_PLACES=66, PETRI_TRANSITIONS=53} [2024-10-11 19:41:29,231 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-10-11 19:41:29,231 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 53 transitions, 327 flow [2024-10-11 19:41:29,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-10-11 19:41:29,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:41:29,231 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] [2024-10-11 19:41:29,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:41:29,232 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)] === [2024-10-11 19:41:29,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:41:29,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1212831000, now seen corresponding path program 1 times [2024-10-11 19:41:29,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:41:29,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813259150] [2024-10-11 19:41:29,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:41:29,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:41:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:41:29,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:41:29,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:41:29,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813259150] [2024-10-11 19:41:29,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813259150] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:41:29,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:41:29,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:41:29,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984001604] [2024-10-11 19:41:29,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:41:29,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:41:29,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:41:29,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:41:29,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:41:29,358 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-10-11 19:41:29,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 53 transitions, 327 flow. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 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) [2024-10-11 19:41:29,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:41:29,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-10-11 19:41:29,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:41:29,842 INFO L124 PetriNetUnfolderBase]: 1959/3996 cut-off events. [2024-10-11 19:41:29,842 INFO L125 PetriNetUnfolderBase]: For 7655/7740 co-relation queries the response was YES. [2024-10-11 19:41:29,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12146 conditions, 3996 events. 1959/3996 cut-off events. For 7655/7740 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 32057 event pairs, 531 based on Foata normal form. 126/3798 useless extension candidates. Maximal degree in co-relation 12120. Up to 1124 conditions per place. [2024-10-11 19:41:29,865 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 50 selfloop transitions, 22 changer transitions 22/113 dead transitions. [2024-10-11 19:41:29,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 113 transitions, 828 flow [2024-10-11 19:41:29,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:41:29,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:41:29,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 274 transitions. [2024-10-11 19:41:29,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6227272727272727 [2024-10-11 19:41:29,867 INFO L175 Difference]: Start difference. First operand has 66 places, 53 transitions, 327 flow. Second operand 10 states and 274 transitions. [2024-10-11 19:41:29,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 113 transitions, 828 flow [2024-10-11 19:41:29,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 113 transitions, 822 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-11 19:41:29,879 INFO L231 Difference]: Finished difference. Result has 80 places, 60 transitions, 479 flow [2024-10-11 19:41:29,880 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=479, PETRI_PLACES=80, PETRI_TRANSITIONS=60} [2024-10-11 19:41:29,880 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 32 predicate places. [2024-10-11 19:41:29,880 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 60 transitions, 479 flow [2024-10-11 19:41:29,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 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) [2024-10-11 19:41:29,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:41:29,880 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] [2024-10-11 19:41:29,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:41:29,881 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)] === [2024-10-11 19:41:29,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:41:29,881 INFO L85 PathProgramCache]: Analyzing trace with hash 2056218684, now seen corresponding path program 1 times [2024-10-11 19:41:29,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:41:29,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515150595] [2024-10-11 19:41:29,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:41:29,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:41:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:41:29,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:41:29,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:41:29,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515150595] [2024-10-11 19:41:29,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515150595] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:41:29,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:41:29,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:41:29,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410395540] [2024-10-11 19:41:29,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:41:29,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:41:29,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:41:29,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:41:29,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:41:29,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-10-11 19:41:29,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 60 transitions, 479 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-10-11 19:41:29,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:41:29,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-10-11 19:41:29,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:41:30,182 INFO L124 PetriNetUnfolderBase]: 1419/2807 cut-off events. [2024-10-11 19:41:30,183 INFO L125 PetriNetUnfolderBase]: For 3708/4152 co-relation queries the response was YES. [2024-10-11 19:41:30,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7830 conditions, 2807 events. 1419/2807 cut-off events. For 3708/4152 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 20083 event pairs, 128 based on Foata normal form. 191/2877 useless extension candidates. Maximal degree in co-relation 7797. Up to 1148 conditions per place. [2024-10-11 19:41:30,200 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 34 selfloop transitions, 8 changer transitions 5/81 dead transitions. [2024-10-11 19:41:30,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 81 transitions, 631 flow [2024-10-11 19:41:30,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:41:30,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:41:30,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-10-11 19:41:30,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-10-11 19:41:30,202 INFO L175 Difference]: Start difference. First operand has 80 places, 60 transitions, 479 flow. Second operand 5 states and 154 transitions. [2024-10-11 19:41:30,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 81 transitions, 631 flow [2024-10-11 19:41:30,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 81 transitions, 578 flow, removed 20 selfloop flow, removed 1 redundant places. [2024-10-11 19:41:30,214 INFO L231 Difference]: Finished difference. Result has 85 places, 59 transitions, 442 flow [2024-10-11 19:41:30,214 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=442, PETRI_PLACES=85, PETRI_TRANSITIONS=59} [2024-10-11 19:41:30,215 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 37 predicate places. [2024-10-11 19:41:30,215 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 59 transitions, 442 flow [2024-10-11 19:41:30,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-10-11 19:41:30,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:41:30,215 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, 1] [2024-10-11 19:41:30,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:41:30,216 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)] === [2024-10-11 19:41:30,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:41:30,216 INFO L85 PathProgramCache]: Analyzing trace with hash 694952140, now seen corresponding path program 1 times [2024-10-11 19:41:30,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:41:30,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537495360] [2024-10-11 19:41:30,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:41:30,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:41:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:41:30,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:41:30,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:41:30,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537495360] [2024-10-11 19:41:30,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537495360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:41:30,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:41:30,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:41:30,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385103376] [2024-10-11 19:41:30,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:41:30,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:41:30,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:41:30,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:41:30,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:41:30,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-10-11 19:41:30,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 59 transitions, 442 flow. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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) [2024-10-11 19:41:30,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:41:30,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-10-11 19:41:30,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:41:30,829 INFO L124 PetriNetUnfolderBase]: 1700/3653 cut-off events. [2024-10-11 19:41:30,829 INFO L125 PetriNetUnfolderBase]: For 10689/11068 co-relation queries the response was YES. [2024-10-11 19:41:30,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12166 conditions, 3653 events. 1700/3653 cut-off events. For 10689/11068 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 30331 event pairs, 617 based on Foata normal form. 93/3363 useless extension candidates. Maximal degree in co-relation 12130. Up to 994 conditions per place. [2024-10-11 19:41:30,851 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 35 selfloop transitions, 12 changer transitions 20/90 dead transitions. [2024-10-11 19:41:30,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 90 transitions, 761 flow [2024-10-11 19:41:30,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:41:30,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:41:30,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2024-10-11 19:41:30,852 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6439393939393939 [2024-10-11 19:41:30,852 INFO L175 Difference]: Start difference. First operand has 85 places, 59 transitions, 442 flow. Second operand 6 states and 170 transitions. [2024-10-11 19:41:30,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 90 transitions, 761 flow [2024-10-11 19:41:30,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 90 transitions, 723 flow, removed 16 selfloop flow, removed 6 redundant places. [2024-10-11 19:41:30,869 INFO L231 Difference]: Finished difference. Result has 84 places, 52 transitions, 381 flow [2024-10-11 19:41:30,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=381, PETRI_PLACES=84, PETRI_TRANSITIONS=52} [2024-10-11 19:41:30,869 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 36 predicate places. [2024-10-11 19:41:30,869 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 52 transitions, 381 flow [2024-10-11 19:41:30,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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) [2024-10-11 19:41:30,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:41:30,870 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] [2024-10-11 19:41:30,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 19:41:30,870 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)] === [2024-10-11 19:41:30,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:41:30,871 INFO L85 PathProgramCache]: Analyzing trace with hash -763743992, now seen corresponding path program 2 times [2024-10-11 19:41:30,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:41:30,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018336757] [2024-10-11 19:41:30,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:41:30,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:41:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:41:30,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:41:30,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:41:30,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018336757] [2024-10-11 19:41:30,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018336757] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:41:30,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:41:30,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:41:30,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212326678] [2024-10-11 19:41:30,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:41:30,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:41:30,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:41:30,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:41:30,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:41:30,985 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-10-11 19:41:30,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 52 transitions, 381 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-10-11 19:41:30,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:41:30,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-10-11 19:41:30,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:41:31,191 INFO L124 PetriNetUnfolderBase]: 1028/1959 cut-off events. [2024-10-11 19:41:31,191 INFO L125 PetriNetUnfolderBase]: For 2849/3755 co-relation queries the response was YES. [2024-10-11 19:41:31,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5896 conditions, 1959 events. 1028/1959 cut-off events. For 2849/3755 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 12912 event pairs, 58 based on Foata normal form. 163/2003 useless extension candidates. Maximal degree in co-relation 5861. Up to 840 conditions per place. [2024-10-11 19:41:31,201 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 26 selfloop transitions, 11 changer transitions 14/71 dead transitions. [2024-10-11 19:41:31,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 71 transitions, 517 flow [2024-10-11 19:41:31,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:41:31,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:41:31,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 178 transitions. [2024-10-11 19:41:31,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6742424242424242 [2024-10-11 19:41:31,202 INFO L175 Difference]: Start difference. First operand has 84 places, 52 transitions, 381 flow. Second operand 6 states and 178 transitions. [2024-10-11 19:41:31,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 71 transitions, 517 flow [2024-10-11 19:41:31,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 71 transitions, 457 flow, removed 12 selfloop flow, removed 11 redundant places. [2024-10-11 19:41:31,207 INFO L231 Difference]: Finished difference. Result has 75 places, 43 transitions, 263 flow [2024-10-11 19:41:31,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=263, PETRI_PLACES=75, PETRI_TRANSITIONS=43} [2024-10-11 19:41:31,207 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2024-10-11 19:41:31,207 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 43 transitions, 263 flow [2024-10-11 19:41:31,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-10-11 19:41:31,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:41:31,208 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, 1, 1, 1] [2024-10-11 19:41:31,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 19:41:31,208 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:41:31,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:41:31,208 INFO L85 PathProgramCache]: Analyzing trace with hash -82355899, now seen corresponding path program 1 times [2024-10-11 19:41:31,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:41:31,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834754893] [2024-10-11 19:41:31,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:41:31,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:41:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:41:31,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:41:31,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:41:31,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834754893] [2024-10-11 19:41:31,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834754893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:41:31,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:41:31,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:41:31,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372819360] [2024-10-11 19:41:31,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:41:31,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:41:31,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:41:31,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:41:31,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:41:31,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-10-11 19:41:31,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 43 transitions, 263 flow. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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) [2024-10-11 19:41:31,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:41:31,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-10-11 19:41:31,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:41:31,403 INFO L124 PetriNetUnfolderBase]: 198/440 cut-off events. [2024-10-11 19:41:31,403 INFO L125 PetriNetUnfolderBase]: For 788/800 co-relation queries the response was YES. [2024-10-11 19:41:31,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1403 conditions, 440 events. 198/440 cut-off events. For 788/800 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2101 event pairs, 50 based on Foata normal form. 8/428 useless extension candidates. Maximal degree in co-relation 1375. Up to 186 conditions per place. [2024-10-11 19:41:31,405 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 0 selfloop transitions, 0 changer transitions 56/56 dead transitions. [2024-10-11 19:41:31,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 56 transitions, 378 flow [2024-10-11 19:41:31,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:41:31,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:41:31,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 163 transitions. [2024-10-11 19:41:31,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5292207792207793 [2024-10-11 19:41:31,406 INFO L175 Difference]: Start difference. First operand has 75 places, 43 transitions, 263 flow. Second operand 7 states and 163 transitions. [2024-10-11 19:41:31,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 56 transitions, 378 flow [2024-10-11 19:41:31,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 56 transitions, 250 flow, removed 21 selfloop flow, removed 23 redundant places. [2024-10-11 19:41:31,409 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-10-11 19:41:31,409 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-10-11 19:41:31,410 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2024-10-11 19:41:31,410 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-10-11 19:41:31,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 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) [2024-10-11 19:41:31,412 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-11 19:41:31,413 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-11 19:41:31,413 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-11 19:41:31,413 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-11 19:41:31,413 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-11 19:41:31,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 19:41:31,414 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:41:31,417 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:41:31,417 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:41:31,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:41:31 BasicIcfg [2024-10-11 19:41:31,421 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:41:31,422 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:41:31,422 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:41:31,422 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:41:31,422 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:41:26" (3/4) ... [2024-10-11 19:41:31,424 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 19:41:31,426 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-11 19:41:31,427 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-11 19:41:31,427 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-11 19:41:31,434 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-10-11 19:41:31,434 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-11 19:41:31,434 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-11 19:41:31,434 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 19:41:31,513 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 19:41:31,514 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 19:41:31,514 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:41:31,514 INFO L158 Benchmark]: Toolchain (without parser) took 6286.92ms. Allocated memory was 159.4MB in the beginning and 331.4MB in the end (delta: 172.0MB). Free memory was 86.0MB in the beginning and 115.7MB in the end (delta: -29.7MB). Peak memory consumption was 145.3MB. Max. memory is 16.1GB. [2024-10-11 19:41:31,514 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory was 111.9MB in the beginning and 111.8MB in the end (delta: 141.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:41:31,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 484.31ms. Allocated memory is still 159.4MB. Free memory was 85.8MB in the beginning and 113.2MB in the end (delta: -27.4MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2024-10-11 19:41:31,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.14ms. Allocated memory is still 159.4MB. Free memory was 113.2MB in the beginning and 111.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:41:31,515 INFO L158 Benchmark]: Boogie Preprocessor took 55.94ms. Allocated memory is still 159.4MB. Free memory was 111.1MB in the beginning and 109.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:41:31,515 INFO L158 Benchmark]: RCFGBuilder took 446.96ms. Allocated memory is still 159.4MB. Free memory was 109.0MB in the beginning and 89.0MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 19:41:31,515 INFO L158 Benchmark]: TraceAbstraction took 5160.52ms. Allocated memory was 159.4MB in the beginning and 331.4MB in the end (delta: 172.0MB). Free memory was 88.1MB in the beginning and 120.9MB in the end (delta: -32.8MB). Peak memory consumption was 138.9MB. Max. memory is 16.1GB. [2024-10-11 19:41:31,515 INFO L158 Benchmark]: Witness Printer took 92.08ms. Allocated memory is still 331.4MB. Free memory was 120.9MB in the beginning and 115.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 19:41:31,520 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory was 111.9MB in the beginning and 111.8MB in the end (delta: 141.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 484.31ms. Allocated memory is still 159.4MB. Free memory was 85.8MB in the beginning and 113.2MB in the end (delta: -27.4MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.14ms. Allocated memory is still 159.4MB. Free memory was 113.2MB in the beginning and 111.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.94ms. Allocated memory is still 159.4MB. Free memory was 111.1MB in the beginning and 109.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 446.96ms. Allocated memory is still 159.4MB. Free memory was 109.0MB in the beginning and 89.0MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5160.52ms. Allocated memory was 159.4MB in the beginning and 331.4MB in the end (delta: 172.0MB). Free memory was 88.1MB in the beginning and 120.9MB in the end (delta: -32.8MB). Peak memory consumption was 138.9MB. Max. memory is 16.1GB. * Witness Printer took 92.08ms. Allocated memory is still 331.4MB. Free memory was 120.9MB in the beginning and 115.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 776]: 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, 68 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: 5.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 387 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 358 mSDsluCounter, 281 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 188 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 853 IncrementalHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 93 mSDtfsCounter, 853 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=479occurred in iteration=6, InterpolantAutomatonStates: 70, 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, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 210 NumberOfCodeBlocks, 210 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 1002 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [2024-10-11 19:41:31,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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