./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/test-easy6.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/test-easy6.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ce46a456eb9ebd463906f73dade5d1c1c222b26a063863b37340a2842c9ee284 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 10:17:16,049 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 10:17:16,100 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 10:17:16,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 10:17:16,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 10:17:16,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 10:17:16,127 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 10:17:16,127 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 10:17:16,127 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 10:17:16,128 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 10:17:16,128 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 10:17:16,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 10:17:16,128 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 10:17:16,128 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 10:17:16,128 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 10:17:16,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 10:17:16,128 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 10:17:16,128 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 10:17:16,128 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 10:17:16,128 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 10:17:16,128 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 10:17:16,128 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 10:17:16,128 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 10:17:16,128 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 10:17:16,128 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 10:17:16,129 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 10:17:16,129 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 10:17:16,129 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 10:17:16,129 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 10:17:16,129 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 10:17:16,129 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 10:17:16,129 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 10:17:16,129 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 10:17:16,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:17:16,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 10:17:16,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 10:17:16,129 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 10:17:16,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 10:17:16,129 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 10:17:16,129 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 10:17:16,129 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 10:17:16,129 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 10:17:16,129 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/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 -> ce46a456eb9ebd463906f73dade5d1c1c222b26a063863b37340a2842c9ee284 [2025-03-04 10:17:16,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 10:17:16,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 10:17:16,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 10:17:16,347 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 10:17:16,347 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 10:17:16,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-easy6.wvr.c [2025-03-04 10:17:17,492 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/688129dbd/108169cac91b497fbbf9507c453ccff8/FLAG4ca04dba0 [2025-03-04 10:17:17,710 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 10:17:17,712 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-easy6.wvr.c [2025-03-04 10:17:17,728 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/688129dbd/108169cac91b497fbbf9507c453ccff8/FLAG4ca04dba0 [2025-03-04 10:17:18,049 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/688129dbd/108169cac91b497fbbf9507c453ccff8 [2025-03-04 10:17:18,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 10:17:18,052 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 10:17:18,053 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 10:17:18,053 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 10:17:18,056 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 10:17:18,056 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:17:18" (1/1) ... [2025-03-04 10:17:18,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dddcdb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:17:18, skipping insertion in model container [2025-03-04 10:17:18,057 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:17:18" (1/1) ... [2025-03-04 10:17:18,069 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 10:17:18,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:17:18,197 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 10:17:18,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:17:18,226 INFO L204 MainTranslator]: Completed translation [2025-03-04 10:17:18,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:17:18 WrapperNode [2025-03-04 10:17:18,227 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 10:17:18,228 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 10:17:18,228 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 10:17:18,229 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 10:17:18,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:17:18" (1/1) ... [2025-03-04 10:17:18,240 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:17:18" (1/1) ... [2025-03-04 10:17:18,255 INFO L138 Inliner]: procedures = 18, calls = 14, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2025-03-04 10:17:18,256 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 10:17:18,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 10:17:18,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 10:17:18,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 10:17:18,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:17:18" (1/1) ... [2025-03-04 10:17:18,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:17:18" (1/1) ... [2025-03-04 10:17:18,268 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:17:18" (1/1) ... [2025-03-04 10:17:18,283 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]. [2025-03-04 10:17:18,283 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:17:18" (1/1) ... [2025-03-04 10:17:18,283 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:17:18" (1/1) ... [2025-03-04 10:17:18,288 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:17:18" (1/1) ... [2025-03-04 10:17:18,292 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:17:18" (1/1) ... [2025-03-04 10:17:18,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:17:18" (1/1) ... [2025-03-04 10:17:18,296 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:17:18" (1/1) ... [2025-03-04 10:17:18,297 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 10:17:18,299 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 10:17:18,300 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 10:17:18,300 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 10:17:18,300 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:17:18" (1/1) ... [2025-03-04 10:17:18,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:17:18,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:17:18,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 10:17:18,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 10:17:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 10:17:18,358 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-04 10:17:18,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-04 10:17:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-04 10:17:18,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-04 10:17:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 10:17:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 10:17:18,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 10:17:18,360 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 10:17:18,427 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 10:17:18,429 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 10:17:18,537 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 10:17:18,538 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 10:17:18,632 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 10:17:18,632 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 10:17:18,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:17:18 BoogieIcfgContainer [2025-03-04 10:17:18,633 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 10:17:18,634 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 10:17:18,634 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 10:17:18,638 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 10:17:18,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 10:17:18" (1/3) ... [2025-03-04 10:17:18,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4fabec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:17:18, skipping insertion in model container [2025-03-04 10:17:18,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:17:18" (2/3) ... [2025-03-04 10:17:18,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4fabec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:17:18, skipping insertion in model container [2025-03-04 10:17:18,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:17:18" (3/3) ... [2025-03-04 10:17:18,644 INFO L128 eAbstractionObserver]: Analyzing ICFG test-easy6.wvr.c [2025-03-04 10:17:18,655 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 10:17:18,658 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-easy6.wvr.c that has 3 procedures, 35 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 10:17:18,658 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 10:17:18,696 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-04 10:17:18,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 34 transitions, 82 flow [2025-03-04 10:17:18,745 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2025-03-04 10:17:18,746 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-04 10:17:18,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 32 events. 0/32 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-03-04 10:17:18,748 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 34 transitions, 82 flow [2025-03-04 10:17:18,751 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 31 transitions, 74 flow [2025-03-04 10:17:18,759 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 10:17:18,770 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;@5e1902a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 10:17:18,770 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-04 10:17:18,781 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 10:17:18,781 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2025-03-04 10:17:18,781 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-04 10:17:18,782 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:17:18,782 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] [2025-03-04 10:17:18,782 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-04 10:17:18,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:17:18,786 INFO L85 PathProgramCache]: Analyzing trace with hash 843155000, now seen corresponding path program 1 times [2025-03-04 10:17:18,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:17:18,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981574500] [2025-03-04 10:17:18,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:17:18,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:17:18,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 10:17:18,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 10:17:18,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:17:18,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:17:19,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:17:19,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:17:19,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981574500] [2025-03-04 10:17:19,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981574500] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:17:19,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:17:19,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 10:17:19,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540796687] [2025-03-04 10:17:19,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:17:19,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 10:17:19,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:17:19,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 10:17:19,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:17:19,221 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 34 [2025-03-04 10:17:19,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 74 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:17:19,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:17:19,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 34 [2025-03-04 10:17:19,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:17:19,500 INFO L124 PetriNetUnfolderBase]: 354/674 cut-off events. [2025-03-04 10:17:19,500 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2025-03-04 10:17:19,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1392 conditions, 674 events. 354/674 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2730 event pairs, 132 based on Foata normal form. 4/675 useless extension candidates. Maximal degree in co-relation 1269. Up to 245 conditions per place. [2025-03-04 10:17:19,507 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 48 selfloop transitions, 6 changer transitions 17/74 dead transitions. [2025-03-04 10:17:19,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 74 transitions, 323 flow [2025-03-04 10:17:19,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 10:17:19,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 10:17:19,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 117 transitions. [2025-03-04 10:17:19,519 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49159663865546216 [2025-03-04 10:17:19,521 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 74 flow. Second operand 7 states and 117 transitions. [2025-03-04 10:17:19,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 74 transitions, 323 flow [2025-03-04 10:17:19,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 74 transitions, 301 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 10:17:19,531 INFO L231 Difference]: Finished difference. Result has 41 places, 33 transitions, 97 flow [2025-03-04 10:17:19,533 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=97, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2025-03-04 10:17:19,537 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2025-03-04 10:17:19,537 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 97 flow [2025-03-04 10:17:19,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:17:19,538 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:17:19,538 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] [2025-03-04 10:17:19,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 10:17:19,539 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-04 10:17:19,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:17:19,539 INFO L85 PathProgramCache]: Analyzing trace with hash 823771106, now seen corresponding path program 2 times [2025-03-04 10:17:19,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:17:19,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639661522] [2025-03-04 10:17:19,539 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:17:19,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:17:19,547 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 1 equivalence classes. [2025-03-04 10:17:19,562 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 10:17:19,562 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 10:17:19,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:17:19,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:17:19,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:17:19,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639661522] [2025-03-04 10:17:19,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639661522] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:17:19,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:17:19,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:17:19,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937488416] [2025-03-04 10:17:19,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:17:19,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:17:19,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:17:19,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:17:19,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:17:19,639 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 34 [2025-03-04 10:17:19,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2025-03-04 10:17:19,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:17:19,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 34 [2025-03-04 10:17:19,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:17:19,735 INFO L124 PetriNetUnfolderBase]: 318/610 cut-off events. [2025-03-04 10:17:19,736 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2025-03-04 10:17:19,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 610 events. 318/610 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2429 event pairs, 237 based on Foata normal form. 6/613 useless extension candidates. Maximal degree in co-relation 1324. Up to 461 conditions per place. [2025-03-04 10:17:19,741 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 38 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2025-03-04 10:17:19,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 43 transitions, 203 flow [2025-03-04 10:17:19,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:17:19,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 10:17:19,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 55 transitions. [2025-03-04 10:17:19,743 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5392156862745098 [2025-03-04 10:17:19,743 INFO L175 Difference]: Start difference. First operand has 41 places, 33 transitions, 97 flow. Second operand 3 states and 55 transitions. [2025-03-04 10:17:19,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 43 transitions, 203 flow [2025-03-04 10:17:19,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 43 transitions, 201 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-03-04 10:17:19,746 INFO L231 Difference]: Finished difference. Result has 41 places, 33 transitions, 103 flow [2025-03-04 10:17:19,746 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2025-03-04 10:17:19,746 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2025-03-04 10:17:19,747 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 103 flow [2025-03-04 10:17:19,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2025-03-04 10:17:19,747 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:17:19,747 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] [2025-03-04 10:17:19,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 10:17:19,747 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-04 10:17:19,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:17:19,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1345429142, now seen corresponding path program 3 times [2025-03-04 10:17:19,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:17:19,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804095371] [2025-03-04 10:17:19,749 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 10:17:19,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:17:19,754 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 29 statements into 1 equivalence classes. [2025-03-04 10:17:19,759 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 10:17:19,760 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 10:17:19,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:17:19,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:17:19,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:17:19,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804095371] [2025-03-04 10:17:19,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804095371] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:17:19,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:17:19,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 10:17:19,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351546792] [2025-03-04 10:17:19,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:17:19,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 10:17:19,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:17:19,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 10:17:19,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:17:19,873 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 34 [2025-03-04 10:17:19,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 103 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:17:19,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:17:19,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 34 [2025-03-04 10:17:19,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:17:20,101 INFO L124 PetriNetUnfolderBase]: 512/1000 cut-off events. [2025-03-04 10:17:20,102 INFO L125 PetriNetUnfolderBase]: For 260/260 co-relation queries the response was YES. [2025-03-04 10:17:20,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2325 conditions, 1000 events. 512/1000 cut-off events. For 260/260 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4793 event pairs, 110 based on Foata normal form. 8/1005 useless extension candidates. Maximal degree in co-relation 831. Up to 207 conditions per place. [2025-03-04 10:17:20,106 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 74 selfloop transitions, 11 changer transitions 17/105 dead transitions. [2025-03-04 10:17:20,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 105 transitions, 542 flow [2025-03-04 10:17:20,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 10:17:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 10:17:20,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 144 transitions. [2025-03-04 10:17:20,107 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47058823529411764 [2025-03-04 10:17:20,107 INFO L175 Difference]: Start difference. First operand has 41 places, 33 transitions, 103 flow. Second operand 9 states and 144 transitions. [2025-03-04 10:17:20,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 105 transitions, 542 flow [2025-03-04 10:17:20,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 105 transitions, 526 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 10:17:20,110 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 173 flow [2025-03-04 10:17:20,110 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=173, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2025-03-04 10:17:20,111 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2025-03-04 10:17:20,111 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 173 flow [2025-03-04 10:17:20,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:17:20,111 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:17:20,111 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] [2025-03-04 10:17:20,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 10:17:20,112 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-04 10:17:20,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:17:20,112 INFO L85 PathProgramCache]: Analyzing trace with hash 455780628, now seen corresponding path program 4 times [2025-03-04 10:17:20,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:17:20,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190913142] [2025-03-04 10:17:20,112 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 10:17:20,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:17:20,119 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 29 statements into 2 equivalence classes. [2025-03-04 10:17:20,128 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 10:17:20,132 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 10:17:20,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:17:20,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:17:20,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:17:20,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190913142] [2025-03-04 10:17:20,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190913142] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:17:20,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:17:20,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 10:17:20,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637975033] [2025-03-04 10:17:20,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:17:20,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 10:17:20,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:17:20,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 10:17:20,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:17:20,236 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 34 [2025-03-04 10:17:20,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 173 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:17:20,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:17:20,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 34 [2025-03-04 10:17:20,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:17:20,446 INFO L124 PetriNetUnfolderBase]: 467/921 cut-off events. [2025-03-04 10:17:20,446 INFO L125 PetriNetUnfolderBase]: For 662/662 co-relation queries the response was YES. [2025-03-04 10:17:20,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2556 conditions, 921 events. 467/921 cut-off events. For 662/662 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4294 event pairs, 146 based on Foata normal form. 2/920 useless extension candidates. Maximal degree in co-relation 2135. Up to 293 conditions per place. [2025-03-04 10:17:20,450 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 44 selfloop transitions, 5 changer transitions 33/85 dead transitions. [2025-03-04 10:17:20,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 85 transitions, 518 flow [2025-03-04 10:17:20,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 10:17:20,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 10:17:20,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 105 transitions. [2025-03-04 10:17:20,451 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4411764705882353 [2025-03-04 10:17:20,451 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 173 flow. Second operand 7 states and 105 transitions. [2025-03-04 10:17:20,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 85 transitions, 518 flow [2025-03-04 10:17:20,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 85 transitions, 512 flow, removed 3 selfloop flow, removed 1 redundant places. [2025-03-04 10:17:20,458 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 174 flow [2025-03-04 10:17:20,458 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=174, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2025-03-04 10:17:20,459 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2025-03-04 10:17:20,459 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 174 flow [2025-03-04 10:17:20,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:17:20,459 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:17:20,460 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] [2025-03-04 10:17:20,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 10:17:20,460 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-04 10:17:20,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:17:20,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1159667130, now seen corresponding path program 5 times [2025-03-04 10:17:20,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:17:20,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648864170] [2025-03-04 10:17:20,461 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 10:17:20,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:17:20,467 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 29 statements into 1 equivalence classes. [2025-03-04 10:17:20,474 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 10:17:20,475 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 10:17:20,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:17:20,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:17:20,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:17:20,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648864170] [2025-03-04 10:17:20,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648864170] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:17:20,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:17:20,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 10:17:20,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659189282] [2025-03-04 10:17:20,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:17:20,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 10:17:20,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:17:20,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 10:17:20,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:17:20,565 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 34 [2025-03-04 10:17:20,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 39 transitions, 174 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:17:20,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:17:20,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 34 [2025-03-04 10:17:20,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:17:20,793 INFO L124 PetriNetUnfolderBase]: 422/858 cut-off events. [2025-03-04 10:17:20,793 INFO L125 PetriNetUnfolderBase]: For 657/657 co-relation queries the response was YES. [2025-03-04 10:17:20,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2394 conditions, 858 events. 422/858 cut-off events. For 657/657 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4068 event pairs, 114 based on Foata normal form. 10/865 useless extension candidates. Maximal degree in co-relation 2356. Up to 301 conditions per place. [2025-03-04 10:17:20,796 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 58 selfloop transitions, 8 changer transitions 15/84 dead transitions. [2025-03-04 10:17:20,796 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 84 transitions, 505 flow [2025-03-04 10:17:20,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:17:20,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 10:17:20,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions. [2025-03-04 10:17:20,798 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5490196078431373 [2025-03-04 10:17:20,798 INFO L175 Difference]: Start difference. First operand has 57 places, 39 transitions, 174 flow. Second operand 6 states and 112 transitions. [2025-03-04 10:17:20,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 84 transitions, 505 flow [2025-03-04 10:17:20,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 84 transitions, 474 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-03-04 10:17:20,801 INFO L231 Difference]: Finished difference. Result has 55 places, 38 transitions, 173 flow [2025-03-04 10:17:20,801 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=173, PETRI_PLACES=55, PETRI_TRANSITIONS=38} [2025-03-04 10:17:20,802 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 17 predicate places. [2025-03-04 10:17:20,802 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 38 transitions, 173 flow [2025-03-04 10:17:20,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:17:20,802 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:17:20,802 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] [2025-03-04 10:17:20,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 10:17:20,802 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-04 10:17:20,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:17:20,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1756122626, now seen corresponding path program 6 times [2025-03-04 10:17:20,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:17:20,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287591343] [2025-03-04 10:17:20,806 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 10:17:20,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:17:20,811 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 29 statements into 1 equivalence classes. [2025-03-04 10:17:20,815 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 10:17:20,816 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-04 10:17:20,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:17:20,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:17:20,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:17:20,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287591343] [2025-03-04 10:17:20,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287591343] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:17:20,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:17:20,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 10:17:20,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977901392] [2025-03-04 10:17:20,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:17:20,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 10:17:20,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:17:20,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 10:17:20,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:17:20,911 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 34 [2025-03-04 10:17:20,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 38 transitions, 173 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:17:20,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:17:20,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 34 [2025-03-04 10:17:20,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:17:21,073 INFO L124 PetriNetUnfolderBase]: 300/620 cut-off events. [2025-03-04 10:17:21,074 INFO L125 PetriNetUnfolderBase]: For 495/495 co-relation queries the response was YES. [2025-03-04 10:17:21,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1754 conditions, 620 events. 300/620 cut-off events. For 495/495 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2647 event pairs, 92 based on Foata normal form. 10/627 useless extension candidates. Maximal degree in co-relation 998. Up to 201 conditions per place. [2025-03-04 10:17:21,076 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 34 selfloop transitions, 7 changer transitions 25/69 dead transitions. [2025-03-04 10:17:21,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 69 transitions, 410 flow [2025-03-04 10:17:21,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 10:17:21,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 10:17:21,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 110 transitions. [2025-03-04 10:17:21,077 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40441176470588236 [2025-03-04 10:17:21,077 INFO L175 Difference]: Start difference. First operand has 55 places, 38 transitions, 173 flow. Second operand 8 states and 110 transitions. [2025-03-04 10:17:21,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 69 transitions, 410 flow [2025-03-04 10:17:21,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 69 transitions, 380 flow, removed 5 selfloop flow, removed 7 redundant places. [2025-03-04 10:17:21,080 INFO L231 Difference]: Finished difference. Result has 55 places, 33 transitions, 136 flow [2025-03-04 10:17:21,080 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=136, PETRI_PLACES=55, PETRI_TRANSITIONS=33} [2025-03-04 10:17:21,080 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 17 predicate places. [2025-03-04 10:17:21,081 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 33 transitions, 136 flow [2025-03-04 10:17:21,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:17:21,081 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:17:21,081 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] [2025-03-04 10:17:21,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 10:17:21,081 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-04 10:17:21,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:17:21,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1410633668, now seen corresponding path program 7 times [2025-03-04 10:17:21,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:17:21,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355127886] [2025-03-04 10:17:21,083 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 10:17:21,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:17:21,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 10:17:21,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 10:17:21,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:17:21,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:17:21,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:17:21,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:17:21,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355127886] [2025-03-04 10:17:21,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355127886] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:17:21,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:17:21,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:17:21,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479898242] [2025-03-04 10:17:21,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:17:21,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:17:21,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:17:21,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:17:21,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:17:21,132 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 34 [2025-03-04 10:17:21,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 33 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2025-03-04 10:17:21,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:17:21,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 34 [2025-03-04 10:17:21,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:17:21,193 INFO L124 PetriNetUnfolderBase]: 164/364 cut-off events. [2025-03-04 10:17:21,193 INFO L125 PetriNetUnfolderBase]: For 290/290 co-relation queries the response was YES. [2025-03-04 10:17:21,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 364 events. 164/364 cut-off events. For 290/290 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1308 event pairs, 117 based on Foata normal form. 6/368 useless extension candidates. Maximal degree in co-relation 367. Up to 270 conditions per place. [2025-03-04 10:17:21,196 INFO L140 encePairwiseOnDemand]: 31/34 looper letters, 34 selfloop transitions, 2 changer transitions 5/44 dead transitions. [2025-03-04 10:17:21,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 44 transitions, 262 flow [2025-03-04 10:17:21,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:17:21,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 10:17:21,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2025-03-04 10:17:21,198 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5490196078431373 [2025-03-04 10:17:21,198 INFO L175 Difference]: Start difference. First operand has 55 places, 33 transitions, 136 flow. Second operand 3 states and 56 transitions. [2025-03-04 10:17:21,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 44 transitions, 262 flow [2025-03-04 10:17:21,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 44 transitions, 224 flow, removed 3 selfloop flow, removed 10 redundant places. [2025-03-04 10:17:21,200 INFO L231 Difference]: Finished difference. Result has 45 places, 33 transitions, 116 flow [2025-03-04 10:17:21,200 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2025-03-04 10:17:21,201 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2025-03-04 10:17:21,202 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 116 flow [2025-03-04 10:17:21,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2025-03-04 10:17:21,203 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 10:17:21,203 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] [2025-03-04 10:17:21,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 10:17:21,203 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-03-04 10:17:21,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:17:21,203 INFO L85 PathProgramCache]: Analyzing trace with hash -253760050, now seen corresponding path program 8 times [2025-03-04 10:17:21,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:17:21,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959088809] [2025-03-04 10:17:21,203 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:17:21,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:17:21,210 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 1 equivalence classes. [2025-03-04 10:17:21,215 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 10:17:21,215 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 10:17:21,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:17:21,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:17:21,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:17:21,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959088809] [2025-03-04 10:17:21,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959088809] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:17:21,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:17:21,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 10:17:21,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205529700] [2025-03-04 10:17:21,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:17:21,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 10:17:21,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:17:21,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 10:17:21,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:17:21,323 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 34 [2025-03-04 10:17:21,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 116 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:17:21,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 10:17:21,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 34 [2025-03-04 10:17:21,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 10:17:21,427 INFO L124 PetriNetUnfolderBase]: 70/158 cut-off events. [2025-03-04 10:17:21,427 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2025-03-04 10:17:21,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 158 events. 70/158 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 472 event pairs, 29 based on Foata normal form. 8/163 useless extension candidates. Maximal degree in co-relation 277. Up to 61 conditions per place. [2025-03-04 10:17:21,428 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 0 selfloop transitions, 0 changer transitions 33/33 dead transitions. [2025-03-04 10:17:21,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 33 transitions, 175 flow [2025-03-04 10:17:21,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:17:21,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 10:17:21,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 68 transitions. [2025-03-04 10:17:21,429 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2025-03-04 10:17:21,429 INFO L175 Difference]: Start difference. First operand has 45 places, 33 transitions, 116 flow. Second operand 6 states and 68 transitions. [2025-03-04 10:17:21,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 33 transitions, 175 flow [2025-03-04 10:17:21,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 33 transitions, 159 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-03-04 10:17:21,431 INFO L231 Difference]: Finished difference. Result has 41 places, 0 transitions, 0 flow [2025-03-04 10:17:21,431 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=41, PETRI_TRANSITIONS=0} [2025-03-04 10:17:21,431 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 3 predicate places. [2025-03-04 10:17:21,431 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 0 transitions, 0 flow [2025-03-04 10:17:21,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 10:17:21,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-03-04 10:17:21,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2025-03-04 10:17:21,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-03-04 10:17:21,433 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-03-04 10:17:21,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 10:17:21,434 INFO L422 BasicCegarLoop]: Path program histogram: [8] [2025-03-04 10:17:21,437 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 10:17:21,437 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 10:17:21,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 10:17:21 BasicIcfg [2025-03-04 10:17:21,441 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 10:17:21,441 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 10:17:21,442 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 10:17:21,442 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 10:17:21,442 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:17:18" (3/4) ... [2025-03-04 10:17:21,444 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 10:17:21,446 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-04 10:17:21,446 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-04 10:17:21,449 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2025-03-04 10:17:21,449 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-03-04 10:17:21,449 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-04 10:17:21,449 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-04 10:17:21,449 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-04 10:17:21,515 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 10:17:21,515 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 10:17:21,516 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 10:17:21,517 INFO L158 Benchmark]: Toolchain (without parser) took 3463.90ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 111.0MB in the beginning and 193.3MB in the end (delta: -82.3MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2025-03-04 10:17:21,517 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 10:17:21,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.31ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 99.9MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 10:17:21,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.39ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 98.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 10:17:21,519 INFO L158 Benchmark]: Boogie Preprocessor took 39.96ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 97.5MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 10:17:21,519 INFO L158 Benchmark]: IcfgBuilder took 333.47ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 73.7MB in the end (delta: 23.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 10:17:21,520 INFO L158 Benchmark]: TraceAbstraction took 2806.80ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 73.7MB in the beginning and 198.8MB in the end (delta: -125.1MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2025-03-04 10:17:21,520 INFO L158 Benchmark]: Witness Printer took 74.05ms. Allocated memory is still 285.2MB. Free memory was 198.8MB in the beginning and 193.3MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 10:17:21,521 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 174.31ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 99.9MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.39ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 98.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.96ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 97.5MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 333.47ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 73.7MB in the end (delta: 23.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2806.80ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 73.7MB in the beginning and 198.8MB in the end (delta: -125.1MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Witness Printer took 74.05ms. Allocated memory is still 285.2MB. Free memory was 198.8MB in the beginning and 193.3MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 70]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 59 locations, 4 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: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 485 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 485 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1233 IncrementalHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 0 mSDtfsCounter, 1233 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=4, InterpolantAutomatonStates: 49, 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, 0.9s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 224 ConstructedInterpolants, 0 QuantifiedInterpolants, 650 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2025-03-04 10:17:21,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE