./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe026_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe026_tso.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 80799f6c8fd7356eb24d2cdce2b9813d505d1c320a66d664e71d3261c3c21a3d --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:26:17,576 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:26:17,637 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:26:17,642 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:26:17,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:26:17,668 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:26:17,669 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:26:17,669 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:26:17,669 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:26:17,669 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:26:17,670 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:26:17,670 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:26:17,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:26:17,671 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:26:17,671 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:26:17,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:26:17,671 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:26:17,671 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:26:17,671 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:26:17,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:26:17,671 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:26:17,671 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:26:17,671 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:26:17,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:26:17,671 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:26:17,671 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:26:17,671 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:26:17,671 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:26:17,671 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:26:17,671 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:26:17,672 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:26:17,672 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:26:17,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:26:17,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:26:17,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:26:17,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:26:17,672 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:26:17,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:26:17,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:26:17,672 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:26:17,672 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:26:17,672 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:26:17,672 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 80799f6c8fd7356eb24d2cdce2b9813d505d1c320a66d664e71d3261c3c21a3d [2025-02-08 08:26:17,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:26:17,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:26:17,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:26:17,952 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:26:17,952 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:26:17,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe026_tso.i [2025-02-08 08:26:19,089 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/186881e30/18eef1b4a7064448ab5756e9c9f9c95a/FLAG30ef089d0 [2025-02-08 08:26:19,407 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:26:19,408 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe026_tso.i [2025-02-08 08:26:19,416 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/186881e30/18eef1b4a7064448ab5756e9c9f9c95a/FLAG30ef089d0 [2025-02-08 08:26:19,670 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/186881e30/18eef1b4a7064448ab5756e9c9f9c95a [2025-02-08 08:26:19,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:26:19,675 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:26:19,677 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:26:19,677 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:26:19,680 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:26:19,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:26:19" (1/1) ... [2025-02-08 08:26:19,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@333f7a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:19, skipping insertion in model container [2025-02-08 08:26:19,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:26:19" (1/1) ... [2025-02-08 08:26:19,714 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:26:19,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:26:19,976 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:26:20,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:26:20,048 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:26:20,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:20 WrapperNode [2025-02-08 08:26:20,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:26:20,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:26:20,050 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:26:20,050 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:26:20,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:20" (1/1) ... [2025-02-08 08:26:20,065 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:20" (1/1) ... [2025-02-08 08:26:20,085 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2025-02-08 08:26:20,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:26:20,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:26:20,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:26:20,086 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:26:20,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:20" (1/1) ... [2025-02-08 08:26:20,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:20" (1/1) ... [2025-02-08 08:26:20,094 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:20" (1/1) ... [2025-02-08 08:26:20,108 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]. [2025-02-08 08:26:20,109 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:20" (1/1) ... [2025-02-08 08:26:20,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:20" (1/1) ... [2025-02-08 08:26:20,112 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:20" (1/1) ... [2025-02-08 08:26:20,113 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:20" (1/1) ... [2025-02-08 08:26:20,118 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:20" (1/1) ... [2025-02-08 08:26:20,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:20" (1/1) ... [2025-02-08 08:26:20,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:26:20,124 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:26:20,124 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:26:20,124 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:26:20,125 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:20" (1/1) ... [2025-02-08 08:26:20,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:26:20,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:26:20,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:26:20,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:26:20,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 08:26:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:26:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 08:26:20,191 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 08:26:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 08:26:20,191 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 08:26:20,191 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 08:26:20,191 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 08:26:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:26:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 08:26:20,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:26:20,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:26:20,195 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:26:20,295 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:26:20,296 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:26:20,400 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:26:20,400 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:26:20,476 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:26:20,476 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:26:20,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:26:20 BoogieIcfgContainer [2025-02-08 08:26:20,477 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:26:20,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:26:20,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:26:20,483 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:26:20,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:26:19" (1/3) ... [2025-02-08 08:26:20,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eae5528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:26:20, skipping insertion in model container [2025-02-08 08:26:20,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:26:20" (2/3) ... [2025-02-08 08:26:20,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eae5528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:26:20, skipping insertion in model container [2025-02-08 08:26:20,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:26:20" (3/3) ... [2025-02-08 08:26:20,486 INFO L128 eAbstractionObserver]: Analyzing ICFG safe026_tso.i [2025-02-08 08:26:20,496 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:26:20,497 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe026_tso.i that has 4 procedures, 41 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:26:20,497 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:26:20,531 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:26:20,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 42 transitions, 96 flow [2025-02-08 08:26:20,575 INFO L124 PetriNetUnfolderBase]: 2/39 cut-off events. [2025-02-08 08:26:20,577 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:26:20,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 2/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2025-02-08 08:26:20,579 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 42 transitions, 96 flow [2025-02-08 08:26:20,581 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 38 transitions, 85 flow [2025-02-08 08:26:20,590 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:26:20,598 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;@4e617f1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:26:20,599 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-08 08:26:20,607 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:26:20,608 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2025-02-08 08:26:20,608 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:26:20,608 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:20,609 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:26:20,609 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:26:20,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:20,613 INFO L85 PathProgramCache]: Analyzing trace with hash -667222323, now seen corresponding path program 1 times [2025-02-08 08:26:20,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:20,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978063195] [2025-02-08 08:26:20,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:20,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:20,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 08:26:20,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:26:20,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:20,687 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:20,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:20,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:20,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978063195] [2025-02-08 08:26:20,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978063195] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:20,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:20,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:26:20,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653389960] [2025-02-08 08:26:20,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:20,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:26:20,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:20,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:26:20,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:26:20,841 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-02-08 08:26:20,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-02-08 08:26:20,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:20,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-02-08 08:26:20,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:21,305 INFO L124 PetriNetUnfolderBase]: 3925/6169 cut-off events. [2025-02-08 08:26:21,305 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2025-02-08 08:26:21,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11866 conditions, 6169 events. 3925/6169 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 36077 event pairs, 3925 based on Foata normal form. 540/6702 useless extension candidates. Maximal degree in co-relation 11855. Up to 5618 conditions per place. [2025-02-08 08:26:21,342 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 26 selfloop transitions, 1 changer transitions 1/34 dead transitions. [2025-02-08 08:26:21,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 34 transitions, 133 flow [2025-02-08 08:26:21,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:26:21,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:26:21,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2025-02-08 08:26:21,355 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4603174603174603 [2025-02-08 08:26:21,356 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 85 flow. Second operand 3 states and 58 transitions. [2025-02-08 08:26:21,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 34 transitions, 133 flow [2025-02-08 08:26:21,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 34 transitions, 130 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 08:26:21,364 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 74 flow [2025-02-08 08:26:21,366 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2025-02-08 08:26:21,369 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2025-02-08 08:26:21,371 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 74 flow [2025-02-08 08:26:21,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-02-08 08:26:21,371 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:21,371 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:26:21,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:26:21,372 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:26:21,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:21,373 INFO L85 PathProgramCache]: Analyzing trace with hash -667220992, now seen corresponding path program 1 times [2025-02-08 08:26:21,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:21,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214141289] [2025-02-08 08:26:21,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:21,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:21,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 08:26:21,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:26:21,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:21,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:21,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:21,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:21,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214141289] [2025-02-08 08:26:21,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214141289] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:21,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:21,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:26:21,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281418181] [2025-02-08 08:26:21,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:21,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:26:21,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:21,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:26:21,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:26:21,531 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2025-02-08 08:26:21,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2025-02-08 08:26:21,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:21,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2025-02-08 08:26:21,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:21,876 INFO L124 PetriNetUnfolderBase]: 2929/4741 cut-off events. [2025-02-08 08:26:21,877 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:26:21,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9153 conditions, 4741 events. 2929/4741 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 27940 event pairs, 411 based on Foata normal form. 180/4916 useless extension candidates. Maximal degree in co-relation 9147. Up to 2593 conditions per place. [2025-02-08 08:26:21,900 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 52 selfloop transitions, 5 changer transitions 1/64 dead transitions. [2025-02-08 08:26:21,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 64 transitions, 256 flow [2025-02-08 08:26:21,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:26:21,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:26:21,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 100 transitions. [2025-02-08 08:26:21,902 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2025-02-08 08:26:21,902 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 74 flow. Second operand 4 states and 100 transitions. [2025-02-08 08:26:21,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 64 transitions, 256 flow [2025-02-08 08:26:21,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 64 transitions, 255 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:26:21,904 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 107 flow [2025-02-08 08:26:21,904 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=107, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2025-02-08 08:26:21,905 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2025-02-08 08:26:21,905 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 107 flow [2025-02-08 08:26:21,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2025-02-08 08:26:21,905 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:21,905 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:26:21,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:26:21,906 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:26:21,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:21,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1282015674, now seen corresponding path program 1 times [2025-02-08 08:26:21,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:21,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531529658] [2025-02-08 08:26:21,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:21,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:21,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:26:21,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:26:21,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:21,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:22,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:22,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:22,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531529658] [2025-02-08 08:26:22,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531529658] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:22,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:22,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:26:22,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607755335] [2025-02-08 08:26:22,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:22,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:26:22,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:22,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:26:22,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:26:22,054 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2025-02-08 08:26:22,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2025-02-08 08:26:22,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:22,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2025-02-08 08:26:22,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:22,337 INFO L124 PetriNetUnfolderBase]: 1665/2709 cut-off events. [2025-02-08 08:26:22,338 INFO L125 PetriNetUnfolderBase]: For 598/598 co-relation queries the response was YES. [2025-02-08 08:26:22,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6140 conditions, 2709 events. 1665/2709 cut-off events. For 598/598 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 13818 event pairs, 253 based on Foata normal form. 132/2836 useless extension candidates. Maximal degree in co-relation 6131. Up to 913 conditions per place. [2025-02-08 08:26:22,352 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 66 selfloop transitions, 8 changer transitions 1/81 dead transitions. [2025-02-08 08:26:22,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 81 transitions, 368 flow [2025-02-08 08:26:22,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:26:22,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:26:22,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2025-02-08 08:26:22,354 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6047619047619047 [2025-02-08 08:26:22,354 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 107 flow. Second operand 5 states and 127 transitions. [2025-02-08 08:26:22,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 81 transitions, 368 flow [2025-02-08 08:26:22,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 81 transitions, 358 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-08 08:26:22,357 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 147 flow [2025-02-08 08:26:22,358 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=147, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2025-02-08 08:26:22,358 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 4 predicate places. [2025-02-08 08:26:22,358 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 147 flow [2025-02-08 08:26:22,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2025-02-08 08:26:22,359 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:22,359 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:26:22,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:26:22,359 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:26:22,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:22,359 INFO L85 PathProgramCache]: Analyzing trace with hash 540418988, now seen corresponding path program 1 times [2025-02-08 08:26:22,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:22,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017412745] [2025-02-08 08:26:22,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:22,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:22,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:26:22,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:26:22,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:22,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:22,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:22,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:22,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017412745] [2025-02-08 08:26:22,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017412745] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:22,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:22,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:26:22,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560041871] [2025-02-08 08:26:22,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:22,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:26:22,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:22,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:26:22,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:26:22,493 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2025-02-08 08:26:22,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2025-02-08 08:26:22,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:22,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2025-02-08 08:26:22,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:22,721 INFO L124 PetriNetUnfolderBase]: 981/1549 cut-off events. [2025-02-08 08:26:22,722 INFO L125 PetriNetUnfolderBase]: For 1038/1038 co-relation queries the response was YES. [2025-02-08 08:26:22,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3922 conditions, 1549 events. 981/1549 cut-off events. For 1038/1038 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 6792 event pairs, 223 based on Foata normal form. 52/1596 useless extension candidates. Maximal degree in co-relation 3911. Up to 556 conditions per place. [2025-02-08 08:26:22,728 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 56 selfloop transitions, 11 changer transitions 1/74 dead transitions. [2025-02-08 08:26:22,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 74 transitions, 363 flow [2025-02-08 08:26:22,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:26:22,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:26:22,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2025-02-08 08:26:22,730 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5158730158730159 [2025-02-08 08:26:22,730 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 147 flow. Second operand 6 states and 130 transitions. [2025-02-08 08:26:22,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 74 transitions, 363 flow [2025-02-08 08:26:22,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 74 transitions, 338 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-02-08 08:26:22,735 INFO L231 Difference]: Finished difference. Result has 53 places, 39 transitions, 161 flow [2025-02-08 08:26:22,735 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=161, PETRI_PLACES=53, PETRI_TRANSITIONS=39} [2025-02-08 08:26:22,736 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 7 predicate places. [2025-02-08 08:26:22,736 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 39 transitions, 161 flow [2025-02-08 08:26:22,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2025-02-08 08:26:22,736 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:22,736 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:26:22,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:26:22,736 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:26:22,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:22,737 INFO L85 PathProgramCache]: Analyzing trace with hash -927314077, now seen corresponding path program 1 times [2025-02-08 08:26:22,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:22,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335958459] [2025-02-08 08:26:22,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:26:22,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:22,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-08 08:26:22,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 08:26:22,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:26:22,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:22,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:22,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:22,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335958459] [2025-02-08 08:26:22,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335958459] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:22,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:22,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:26:22,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991532065] [2025-02-08 08:26:22,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:22,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:26:22,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:22,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:26:22,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:26:22,852 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2025-02-08 08:26:22,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 39 transitions, 161 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2025-02-08 08:26:22,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:22,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2025-02-08 08:26:22,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:23,189 INFO L124 PetriNetUnfolderBase]: 2127/3371 cut-off events. [2025-02-08 08:26:23,190 INFO L125 PetriNetUnfolderBase]: For 2950/2950 co-relation queries the response was YES. [2025-02-08 08:26:23,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8893 conditions, 3371 events. 2127/3371 cut-off events. For 2950/2950 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 17306 event pairs, 637 based on Foata normal form. 24/3389 useless extension candidates. Maximal degree in co-relation 8881. Up to 1171 conditions per place. [2025-02-08 08:26:23,200 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 45 selfloop transitions, 2 changer transitions 77/130 dead transitions. [2025-02-08 08:26:23,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 130 transitions, 811 flow [2025-02-08 08:26:23,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:26:23,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:26:23,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 213 transitions. [2025-02-08 08:26:23,202 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.461038961038961 [2025-02-08 08:26:23,202 INFO L175 Difference]: Start difference. First operand has 53 places, 39 transitions, 161 flow. Second operand 11 states and 213 transitions. [2025-02-08 08:26:23,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 130 transitions, 811 flow [2025-02-08 08:26:23,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 130 transitions, 596 flow, removed 40 selfloop flow, removed 8 redundant places. [2025-02-08 08:26:23,222 INFO L231 Difference]: Finished difference. Result has 64 places, 39 transitions, 131 flow [2025-02-08 08:26:23,222 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=131, PETRI_PLACES=64, PETRI_TRANSITIONS=39} [2025-02-08 08:26:23,222 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 18 predicate places. [2025-02-08 08:26:23,222 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 39 transitions, 131 flow [2025-02-08 08:26:23,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2025-02-08 08:26:23,223 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:23,223 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:26:23,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:26:23,223 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:26:23,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:23,224 INFO L85 PathProgramCache]: Analyzing trace with hash -2021973033, now seen corresponding path program 2 times [2025-02-08 08:26:23,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:23,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889521936] [2025-02-08 08:26:23,224 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:26:23,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:23,231 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 1 equivalence classes. [2025-02-08 08:26:23,241 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 08:26:23,241 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:26:23,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:23,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:23,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:23,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889521936] [2025-02-08 08:26:23,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889521936] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:23,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:23,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:26:23,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633705566] [2025-02-08 08:26:23,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:23,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:26:23,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:23,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:26:23,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:26:23,383 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2025-02-08 08:26:23,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 39 transitions, 131 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2025-02-08 08:26:23,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:23,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2025-02-08 08:26:23,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:23,597 INFO L124 PetriNetUnfolderBase]: 983/1595 cut-off events. [2025-02-08 08:26:23,597 INFO L125 PetriNetUnfolderBase]: For 428/428 co-relation queries the response was YES. [2025-02-08 08:26:23,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3869 conditions, 1595 events. 983/1595 cut-off events. For 428/428 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 6906 event pairs, 257 based on Foata normal form. 8/1603 useless extension candidates. Maximal degree in co-relation 3853. Up to 930 conditions per place. [2025-02-08 08:26:23,604 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 36 selfloop transitions, 1 changer transitions 35/78 dead transitions. [2025-02-08 08:26:23,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 78 transitions, 398 flow [2025-02-08 08:26:23,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:26:23,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:26:23,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 121 transitions. [2025-02-08 08:26:23,607 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4801587301587302 [2025-02-08 08:26:23,607 INFO L175 Difference]: Start difference. First operand has 64 places, 39 transitions, 131 flow. Second operand 6 states and 121 transitions. [2025-02-08 08:26:23,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 78 transitions, 398 flow [2025-02-08 08:26:23,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 78 transitions, 364 flow, removed 15 selfloop flow, removed 9 redundant places. [2025-02-08 08:26:23,610 INFO L231 Difference]: Finished difference. Result has 56 places, 39 transitions, 122 flow [2025-02-08 08:26:23,610 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=122, PETRI_PLACES=56, PETRI_TRANSITIONS=39} [2025-02-08 08:26:23,611 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 10 predicate places. [2025-02-08 08:26:23,611 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 39 transitions, 122 flow [2025-02-08 08:26:23,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2025-02-08 08:26:23,611 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:26:23,612 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:26:23,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:26:23,612 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:26:23,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:26:23,612 INFO L85 PathProgramCache]: Analyzing trace with hash 976734985, now seen corresponding path program 3 times [2025-02-08 08:26:23,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:26:23,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604035397] [2025-02-08 08:26:23,612 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:26:23,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:26:23,619 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 29 statements into 1 equivalence classes. [2025-02-08 08:26:23,630 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 08:26:23,630 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:26:23,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:26:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:26:23,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:26:23,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604035397] [2025-02-08 08:26:23,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604035397] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:26:23,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:26:23,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:26:23,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091584915] [2025-02-08 08:26:23,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:26:23,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:26:23,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:26:23,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:26:23,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:26:23,776 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2025-02-08 08:26:23,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 39 transitions, 122 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2025-02-08 08:26:23,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:26:23,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2025-02-08 08:26:23,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:26:23,894 INFO L124 PetriNetUnfolderBase]: 603/1009 cut-off events. [2025-02-08 08:26:23,895 INFO L125 PetriNetUnfolderBase]: For 226/228 co-relation queries the response was YES. [2025-02-08 08:26:23,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2403 conditions, 1009 events. 603/1009 cut-off events. For 226/228 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4119 event pairs, 227 based on Foata normal form. 10/1019 useless extension candidates. Maximal degree in co-relation 2395. Up to 804 conditions per place. [2025-02-08 08:26:23,898 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2025-02-08 08:26:23,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 60 transitions, 290 flow [2025-02-08 08:26:23,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:26:23,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:26:23,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 109 transitions. [2025-02-08 08:26:23,899 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43253968253968256 [2025-02-08 08:26:23,899 INFO L175 Difference]: Start difference. First operand has 56 places, 39 transitions, 122 flow. Second operand 6 states and 109 transitions. [2025-02-08 08:26:23,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 60 transitions, 290 flow [2025-02-08 08:26:23,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 60 transitions, 285 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-02-08 08:26:23,900 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2025-02-08 08:26:23,900 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2025-02-08 08:26:23,901 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 6 predicate places. [2025-02-08 08:26:23,901 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2025-02-08 08:26:23,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2025-02-08 08:26:23,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-02-08 08:26:23,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-02-08 08:26:23,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-02-08 08:26:23,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-08 08:26:23,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-08 08:26:23,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:26:23,905 INFO L422 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2025-02-08 08:26:23,909 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:26:23,909 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:26:23,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:26:23 BasicIcfg [2025-02-08 08:26:23,913 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:26:23,914 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:26:23,914 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:26:23,915 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:26:23,915 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:26:20" (3/4) ... [2025-02-08 08:26:23,917 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:26:23,919 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 08:26:23,919 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 08:26:23,919 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 08:26:23,922 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-02-08 08:26:23,922 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 08:26:23,922 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-08 08:26:23,922 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 08:26:23,979 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:26:23,979 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:26:23,982 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:26:23,982 INFO L158 Benchmark]: Toolchain (without parser) took 4307.12ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 105.1MB in the beginning and 311.9MB in the end (delta: -206.9MB). Peak memory consumption was 82.8MB. Max. memory is 16.1GB. [2025-02-08 08:26:23,983 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 201.3MB. Free memory is still 127.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:26:23,983 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.69ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 85.1MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:26:23,983 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.72ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 83.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:26:23,983 INFO L158 Benchmark]: Boogie Preprocessor took 37.19ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 82.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:26:23,983 INFO L158 Benchmark]: IcfgBuilder took 353.21ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 61.7MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:26:23,983 INFO L158 Benchmark]: TraceAbstraction took 3434.83ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 61.1MB in the beginning and 316.0MB in the end (delta: -254.9MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2025-02-08 08:26:23,984 INFO L158 Benchmark]: Witness Printer took 68.06ms. Allocated memory is still 427.8MB. Free memory was 316.0MB in the beginning and 311.9MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:26:23,985 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 201.3MB. Free memory is still 127.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.69ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 85.1MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.72ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 83.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.19ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 82.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 353.21ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 61.7MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3434.83ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 61.1MB in the beginning and 316.0MB in the end (delta: -254.9MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * Witness Printer took 68.06ms. Allocated memory is still 427.8MB. Free memory was 316.0MB in the beginning and 311.9MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 771]: 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, 64 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: 3.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 357 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 350 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 928 IncrementalHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 4 mSDtfsCounter, 928 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=4, InterpolantAutomatonStates: 41, 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, 0.8s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 443 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 08:26:24,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE